231204161074 [VISHAY]

Fixed Resistor, Thin Film, 0.25W, 107000ohm, 200V, 0.25% +/-Tol, 25ppm/Cel, Surface Mount, 1406, MELF, ROHS COMPLIANT;


型号：	231204161074
厂家：	VISHAY
描述：	Fixed Resistor, Thin Film, 0.25W, 107000ohm, 200V, 0.25% +/-Tol, 25ppm/Cel, Surface Mount, 1406, MELF, ROHS COMPLIANT 电阻器
文件：	总10页 (文件大小：203K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

MMU 0102, MMA 0204, MMB 0207 - Precision

Vishay Beyschlag

Precision MELF Resistors

FEATURES

 Approved to EN 140401-803

 AEC-Q200 qualified

 Advanced thin film technology

 Superior stability: Class 0.05

 Wide precision range: 10  to 1 M

 Matte Sn termination on Ni barrier layer

 Compliant to RoHS Directive 2011/65/EU

APPLICATIONS

 Test and measuring equipment

 Industrial and medical electronics

METRIC SIZE

DIN

MMU 0102, MMA 0204 and MMB 0207 precision thin film

MELF resistors combine the proven reliability of the

professional products with an advanced level of precision

and stability. Therefore they are perfectly suited for

applications in the fields of test and measuring equipment

along with industrial and medical electronics.

0102

0204

0207

CECC

RC 2211M

RC 3715M

RC 6123M

TECHNICAL SPECIFICATIONS

DESCRIPTION

MMA 0204

MMU 0102

MMB 0207

Metric CECC size

Resistance range

Resistance tolerance

Temperature coefficient

Operation mode

RC 2211 M

RC 3715 M

RC 6123 M

22  to 332 k

10  to 511 k

15  to 1 M

0.25 %; 0.1 %

0.5 %; 0.25 %; 0.1 %

25 ppm/K; 15 ppm/K

Precision

Standard

0.2 W

Precision

Standard

0.25 W

Precision

Standard

0.4 W

(1)

Rated dissipation, P₇₀

0.06 W

0.07 W

0.11 W

Operating voltage, U_max.AC/DC

150 V

200 V

300 V

Permissible film temperature,

_Fmax.

85 C

125 C

85 C

125 C

85 C

125 C

- 10 °C

to 85 °C

- 55 °C

to 125 °C

- 10 °C

to 85 °C

- 55 °C

to 125 °C

- 10 °C

to 85 °C

- 55 °C

to 125 °C

Operating temperature range

Max. resistance change at P₇₀

for resistance range,

R/R max., after:

22  to 332 k

10  to 511 k

15  to 1 M

1000 h

8000 h

 0.05 %

0.1 %

0.2 %

 0.6 %

 0.05 %

 0.1 %

0.2 %

 0.6 %

0.05 %

0.1 %

0.2 %

 0.6 %

 0.1 %

 0.3 %

0.1 %

0.3 %

 0.1 %

 0.3 %

225 000 h

Permissible voltage against

ambient (insulation):

1 min, U_ins

Continuous

200 V

75 V

300 V

75 V

500 V

75 V

Failure rate: FIT_observed

0.1 x 10^-9/h

Notes

•

These resistors do not feature a limited lifetime when operated within the permissible limits. However, resistance value drift increasing over

operating time may result in exceeding a limit acceptable to the specific application, thereby establishing a functional lifetime.

⁽¹⁾The power dissipation on the resistor generates a temperature rise against the local ambient, depending on the heatflow support of the

printed-circuit board (thermal resistance). The rated dissipation applies only if the permitted film temperature is not exceeded.

Document Number: 28714

Revision: 05-Mar-12

For technical questions, contact: melf@vishay.com

This document is subject to change without notice.

www.vishay.com

THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

MMU 0102, MMA 0204, MMB 0207 - Precision

Precision MELF Resistors

Vishay Beyschlag

DIMENSIONS

L₁

D₁

DIMENSIONS AND MASS

(mm)

L_{1 min.}

(mm)

D₁

(mm)

MASS

(mg)

TYPE

(mm)

MMU 0102

MMA 0204

MMB 0207

2.2 + 0/- 0.1

3.6 + 0/- 0.2

5.8 + 0/- 0.15

1.1 + 0/- 0.1

1.4 + 0/- 0.1

2.2 + 0/- 0.2

1.2

1.8

3.2

D + 0/- 0.1

D + 0/- 0.15

D + 0/- 0.2

0.4 0.05

0.8 0.1

1.15 0.1

Note

• Color code marking is applied according to IEC 60062 ⁽³⁾in five bands. Each color band appears as a single solid line, voids are permissible

if at least ²/₃of the band is visible from each radial angle of view. The last color band for tolerance is approximately 50 % wider than the other

bands. An interrupted band between the 4^thand 5^thfull band indicates the temperature coefficient (yellow = TC25, orange = TC15).

PATTERN STYLES FOR MELF RESISTORS

RECOMMENDED SOLDER PAD DIMENSIONS

WAVE SOLDERING

REFLOW SOLDERING

TYPE

(mm)

MMU 0102

MMA 0204

MMB 0207

0.7

1.5

2.8

1.2

1.5

2.1

1.5

1.8

2.6

3.1

4.5

7.0

1.1

1.7

3.2

0.8

1.2

1.7

1.3

1.6

2.4

2.7

4.1

6.6

Note

• The given solder pad dimensions reflect the considerations for board design and assembly as outlined e.g. in standards IEC 61188-5-x, or in

publication IPC-7351. They do not guarantee any supposed thermal properties, however, they will be found adequate for most general

applications.

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For technical questions, contact: melf@vishay.com

This document is subject to change without notice.

Document Number: 28714

Revision: 05-Mar-12

THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

MMU 0102, MMA 0204, MMB 0207 - Precision

Precision MELF Resistors

Vishay Beyschlag

PART NUMBER AND PRODUCT DESCRIPTION

Part Number: MMA02040D5620BB300

TYPE/SIZE

VERSION

TCR

RESISTANCE

3 digit value

TOLERANCE PACKAGING

MMU0102

MMA0204

MMB0207

0 = Standard,

EN 140401-803,

“Version A”

E = 15 ppm/K

D = 25 ppm/K

B = 0.1 %

C = 0.25 %

D = 0.5 %

1 digit multiplier

Multiplier

9 = *10^-1

0 = *10⁰

1 = *10¹

2 = *10²

3 = *10³

4 = *10⁴

Product Description: MMA 0204-25 0.1 % BL 562R

MMA

0204

-25

0.1 %

562R

TYPE

SIZE

TCR

TOLERANCE

PACKAGING

RESISTANCE

MMU

MMA

MMB

0102

0204

0207

15 ppm/K

25 ppm/K

0.1 %

0.25 %

0.5 %

562R = 562 

Notes

• Products can be ordered using either the PART NUMBER or the PRODUCT DESCRIPTION.

• Approval to EN 140401-803, “Version A”, is not available for 15 ppm/K, 0.5 %.

PACKAGING

TYPE

CODE

QUANTITY

1000

CARRIER TAPE

WIDTH

PITCH

REEL DIAMETER

180 mm/7"

Antistatic blister tape acc.

IEC 60286-3 type II

B3 = BL

3000

8 mm

4 mm

MMU 0102

10 000

330 mm/13"

Bulk case acc.

IEC 60286-6

8000

B3 = BL

1000

3000

180 mm/7"

Antistatic blister tape acc.

IEC 60286-3 type II

8 mm

4 mm

MMA 0204

MMB 0207

10 000

330 mm/13"

Bulk case acc.

IEC 60286-6

3000

1000

2000

7000

180 mm/7"

Antistatic blister tape acc.

IEC 60286-3 type II

12 mm

4 mm

330 mm/13"

Document Number: 28714

Revision: 05-Mar-12

For technical questions, contact: melf@vishay.com

This document is subject to change without notice.

www.vishay.com

THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

MMU 0102, MMA 0204, MMB 0207 - Precision

Precision MELF Resistors

Vishay Beyschlag

TEMPERATURE COEFFICIENT AND RESISTANCE RANGE

DESCRIPTION

RESISTANCE

TCR

25 ppm/K

TOLERANCE

0.25 %

0.1 %

MMU 0102

MMA 0204

MMB 0207

15  to 1 M

33  to 1 M

47  to 332 k

100  to 221 k

22  to 100 k

47  to 100 k

100  to 100 k

22  to 511 k

43  to 511 k

10  to 332 k

22  to 332 k

43  to 332 k

0.5 %

0.25 %

0.1 %

15 ppm/K

Notes

33  to 1 M

• Resistance ranges printed in bold are preferred TCR/tolerance combinations with optimized availability.

• Resistance values to be selected from E24 and E192 series, for other values please contact the factory.

• Approval to EN 140401-803, “Version A”, is not available for 15 ppm/K; 0.5 %.

(1)

All products comply with the GADSL

and the

DESCRIPTION

(2)

CEFIC- EECA-EICTA

list of legal restrictions on

hazardous substances. This includes full compliance with

the following directives:

Production is strictly controlled and follows an extensive set

of instructions established for reproducibility. A homo-

geneous film of metal alloy is deposited on a high grade

ceramic body (Al₂O₃) and conditioned to achieve the desired

temperature coefficient. Nickel plated steel termination caps

are firmly pressed on the metallised rods. A special laser is

used to achieve the target value by smoothly cutting a helical

groove in the resistive layer without damaging the ceramics.

A further conditioning is applied in order to stabilise the

trimming result. The resistor elements are covered by a

protective coating designed for electrical, mechanical and

climatic protection. The terminations receive a final pure tin

on nickel plating. Five color code rings designate the

resistance value and tolerance in accordance with



2000/53/EC End of Vehicle life Directive (ELV) and Annex II

(ELV II)

 2011/65/EU Restriction of the use of Hazardous

Substances Directive (RoHS)

 2002/96/EC Waste Electrical and Electronic Equipment

Directive (WEEE)

APPROVALS

The resistors are approved within the IECQ-CECC Quality

Assessment System for Electronic Components to the detail

specification EN 140401-803 which refers to EN 60115-1,

EN 140400 and the variety of environmental test procedures

of the IEC 60068 ⁽³⁾series.

IEC 60062 ⁽³⁾

The result of the determined production is verified by an

extensive testing procedure performed on 100 % of the

individual resistors. This includes pilse load screening (for R

 10 ) and additional non-linearity screening (for R  30 )

for the elimination of products with a potential risk of early life

failures according to EN 140401-803, 2.1.2.2. Only accepted

products are laid directly into the blister tape in accordance

with IEC 60286-3, Type II ⁽³⁾or bulk case in accordance with

Conformity is attested by the use of the CECC logo (

) as

the mark of conformity on the package label.

Vishay Beyschlag has achieved “Approval of

Manufacturer” in accordance with IEC QC 001002-3,

clause 2. The release certificate for “Technology Approval

Schedule” in accordance with CECC 240001 based on

IEC QC 001002-3, clause

is granted for the

IEC 60286-6 ⁽³⁾

Vishay Beyschlag manufacturing process.

ASSEMBLY

The resistors are qualified according to AEC-Q200.

The resistors are suitable for processing on automatic SMD

assembly systems. They are suitable for automatic soldering

using wave, reflow or vapour phase as shown in

IEC 61760-1 ⁽³⁾. Solderability is specified for 2 years after

production or requalification, however, excellent solderability

is proven after extended storage in excess of 10 years. The

permitted storage time is 20 years.

RELATED PRODUCTS

For thin film products with a wider resistance, see the

datasheet:

• “Professional MELF Resistors”

(www.vishay.com/doc?28713)

For products with tighter precision specification, see the

datasheet:

The resistors are completely lead (Pb)-free, the pure tin

plating provides compatibility with lead (Pb)-free soldering

processes. The immunity of the plating against tin whisker

growth has been proven under extensive testing.

• “High Precision MELF resistors”

(www.vishay.com/doc?28715)

Resistors are available with established reliability in

accordance with EN 140401-803 Version E. Please refer to

datasheet “MELF Resistors with Established Reliability”

(www.vishay.com/doc?28707).

The encapsulation is resistant to all cleaning solvents

commonly used in the electronics industry, including

alcohols, esters and aqueous solutions. The suitability of

conformal coatings, if applied, shall be qualified by

appropriate means to ensure the long-term stability of the

whole system.

Notes

(1)

Global Automotive Declarable Substance List, see www.gadsl.org.

(2)

CEFIC (European Chemical Industry Council), EECA (European Electronic Component Manufacturers Association), EICTA (European trade

organisation representing the information and communications technology and consumer electronics), see www.eicta.org/index.php?id=995

 issues  environment policy  chemicals  chemicals for electronics.

(3)

The quoted IEC standards are also released as EN standards with the same number and identical contents.

www.vishay.com

For technical questions, contact: melf@vishay.com

Document Number: 28714

Revision: 05-Mar-12

This document is subject to change without notice.

THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

MMU 0102, MMA 0204, MMB 0207 - Precision

Precision MELF Resistors

Vishay Beyschlag

FUNCTIONAL PERFORMANCE

0.15

MMB 0207

MMA 0204

MMU 0102

0.10

0.05

- 50

100

150

Ambient Temperature ϑ_amb

Derating - Precision Operation

0.4

MMB 0207

MMA 0204

MMU 0102

0.3

0.2

0.1

- 50

100

150

Ambient Temperature ϑ_amb

Derating - Standard Operation

µV/V

0.1

MMB 0207

MMA 0204

MMU 0102

0.01

100 Ω

1 kΩ

10 kΩ

100 kΩ

1 MΩ

10 MΩ

Resistance Value R

In accordance with IEC 60195

Current Noise - A

Document Number: 28714

Revision: 05-Mar-12

For technical questions, contact: melf@vishay.com

This document is subject to change without notice.

www.vishay.com

THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

MMU 0102, MMA 0204, MMB 0207 - Precision

Precision MELF Resistors

Vishay Beyschlag

TESTS AND REQUIREMENTS

All tests are carried out in accordance with the following

specifications:

Unless otherwise specified the following values apply:

Temperature: 15 °C to 35 °C

EN 60115-1, generic specification

EN 140400, sectional specification

EN 140401-803, detail specification

Relative humidity: 45 % to 75 %

Air pressure: 86 kPa to 106 kPa (860 mbar to 1060 mbar).

The components are mounted for testing on printed-circuit

boards in accordance with EN 140400, 2.3.3, unless

otherwise specified.

The components are approved in accordance with the

IECQ-CECC-system, where applicable. For the full test

schedule refer to the documents listed above. The testing

also covers most of the requirements specified by

EIA/IS-703 and JIS-C-5202.

The requirements stated in Test Procedures and

Requirements table are based on the required tests and

permitted limits of EN 140401-803. However, some

additional tests and a number of improvements against those

minimum requirements have been included. The stated

requirements for long-term tests are typically fulfilled with a

statistical safety of at least x + 5 s.

The tests are carried out under standard atmospheric

conditions in accordance with IEC 60068-1, 5.3 ⁽⁴⁾. Climatic

category LCT/UCT/56 (rated temperature range: Lower

category temperature, upper category temperature; damp

heat, steady state, test duration 56 days) is valid.

TEST PROCEDURES AND REQUIREMENTS

IEC

60115-1 60068-2 ⁽⁴⁾

REQUIREMENTS

PERMISSIBLE CHANGE (R)

TEST

PROCEDURE

CLAUSE

TEST

METHOD

STABILITY

CLASS 0.05

OR BETTER

STABILITY

CLASS 0.1

OR BETTER

STABILITY

CLASS 0.25

OR BETTER

Stability for product types:

MMU 0102

MMA 0204

MMB 0207

100



to 100 k

to 270 k



to 147 k

to 221 k

to 510 k

0.25 %



to 332 k

to 511 k



 to 1 M

4.5

Resistance

0.5 %

;

0.1 % R

Temperature

coefficient

At (20/- 55/20) C and

(20/125/20) C

4.8.4.2

25 ppm/K, 15 ppm/K

U = P₇₀x R 

U_max.

;

Endurance at

70 C: precision

operation mode

1.5 h on; 0.5 h off;

70 °C; 1000 h

70 °C; 8000 h

U = P₇₀x R

(0.05 %

(0.1 %

R + 5 m)

+ 5 m)

4.25.1

 U_max.

;

Endurance at

70 C: standard

operation mode

1.5 h on; 0.5 h off;

70 °C; 1000 h

(0.1 %

(0.2 %

+ 5 m



)

70 °C; 8000 h

+ 5 m

Endurance at

upper category

temperature

85 C; 1000 h

125 C; 1000 h

(0.02 %

(0.05 %

+ 5 m



)

(0.05 %

(0.1 %

+ 5 m

(0.1 %



)

(0.1 %

+ 5 m

)

4.25.3

4.24

+ 5 m



)

(0.15 %

+ 5 m

)

(40 2) C; 56 days;

Damp heat,

steady state

78 (Cab)

(0.05 %

+ 5 m

)

R + 5 m)

(93 3) % RH

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For technical questions, contact: melf@vishay.com

This document is subject to change without notice.

Document Number: 28714

Revision: 05-Mar-12

THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

MMU 0102, MMA 0204, MMB 0207 - Precision

Precision MELF Resistors

Vishay Beyschlag

TEST PROCEDURES AND REQUIREMENTS

IEC

60115-1 60068-2 ⁽⁴⁾

REQUIREMENTS

PROCEDURE

TEST

CLAUSE

TEST

PERMISSIBLE CHANGE (R)

METHOD

STABILITY

CLASS 0.05

OR BETTER

STABILITY

CLASS 0.1

OR BETTER

STABILITY

CLASS 0.25

OR BETTER

Stability for product types:

MMU 0102

MMA 0204

100



to 100 k

to 270 k



to 147 k

to 221 k

to 510 k



to 332 k

to 511 k



MMB 0207



to 1 M



(85 2) C; (85 5) % RH;

U = 0.3 x P₇₀x R

 100 V;

Damp heat,

steady state,

accelerated

4.39

67 (Cy)

(0.15 %

+ 5 m

)

(0.25 % R + 5 m

)

1000 h

Climatic

sequence:

4.23

4.23.2

4.23.3

2 (Bb)

dry heat

UCT; 16 h

55 C; 24 h; 90 % RH;

30 (Db)

damp heat, cyclic

1 cycle

4.23.4

4.23.5

1 (Ab)

13 (M)

cold

LCT; 2 h

low air pressure

8.5 kPa; 2 h; (25 10) C

55 C; 24 h;90 % RH;

4.23.6

4.23.7

30 (Db)

damp heat, cyclic

DC load

5 cycles

U = P₇₀x R



U_max.; 1 min.

LCT = - 10 C;

UCT = 85 C

(0.05 %

+ 5 m

)

(0.1 %

+ 5 m

)

LCT = - 55 C;

UCT = 125 C

(0.1 %

+ 5 m

)

1 (Ab)

Cold

- 55 C; 2 h

(0.02 %

+ 5 m)

30 min at LCT;

30 min at UCT;

LCT = - 10 C;

UCT = 85 C

5 cycles

(0.01 %

(0.1 %

+ 5 m



)

(0.02 %

(0.1 %

+ 5 m



)

Rapid change

of temperature

4.19

14 (Na)

1000 cycles

+ 5 m



)

+ 5 m



)

LCT = - 55 C;

UCT = 125 C

5 cycles

(0.025 %

+ 5 m



)

1000 cycles

(0.2 %

+ 5 m

)

Short time

overload;

precision

(0.01 %

+ 5 m

)

(0.02 %

+ 5 m

)

(0.03 %

+ 5 m

)

operation mode

U = 2.5 x P₇₀x R 

4.13

4.27

2 x U_max.; 5 s

Short time

over load;

standard

(0.05 %

R + 5 m)

operation mode

Severity no. 4:

Single pulse high

voltage overload;

standard

U = 10 x P₇₀x R 

(1)

(0.25 %

R + 5 m)

2 x U_max.

;

operation mode

10 pulses 10 µs/700 µs

Document Number: 28714

Revision: 05-Mar-12

For technical questions, contact: melf@vishay.com

This document is subject to change without notice.

www.vishay.com

THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

MMU 0102, MMA 0204, MMB 0207 - Precision

Precision MELF Resistors

Vishay Beyschlag

TEST PROCEDURES AND REQUIREMENTS

IEC

60115-1 60068-2 ⁽⁴⁾

REQUIREMENTS

PERMISSIBLE CHANGE (R)

TEST

PROCEDURE

CLAUSE

TEST

METHOD

STABILITY

CLASS 0.05

OR BETTER

STABILITY

CLASS 0.1

OR BETTER

STABILITY

CLASS 0.25

OR BETTER

Stability for product types:

MMU 0102

MMA 0204

100



to 100 k

to 270 k



to 147 k

to 221 k

to 510 k



to 332 k

to 511 k



MMB 0207

15  to 1 M

U = 15 x P₇₀x R

Periodic electric

overload;

2 x U_max.

;

(1)

4.37

4.22

(0.5 %

+ 5 m



)

standard

operation mode

0.1 s on; 2.5 s off;

1000 cycles

Endurance by sweeping;

10 Hz to 2000 Hz;

no resonance; amplitude

 1.5 mm or  200 m/s²; 7.5 h

6 (Fc)

Vibration

(0.01 %

+ 5 m

)

(0.02 %

+ 5 m



(0.03 %

+ 5 m)

IEC 61340-3-1 ⁽⁴⁾

;

Electrostatic

discharge

(Human Body

Model)

3 pos. + 3 neg. discharges

MMU 0102: 1.5 kV

MMA 0204: 2 kV

(1)

4.40

(0.5 % R + 50 m)

MMB 0207: 4 kV

Solder bath method;

SnPb40; non-activated flux;

(215 3) C; (3 0.3) s

Good tinning (



95 % covered); no visible damage

4.17.2

58 (Td)

Solderability

Solder bath method;

SnAg3Cu0.5 or SnAg3.5;

non-activated flux;

(235 3) C; (2 0.2) s

Solder bath method;

(260 5) C; (10 1) s

Note ⁽²⁾

(0.05 %

+ 10 m

)

Resistance to

soldering heat

4.18.2

58 (Td)

Reflow method 2

(IR/forced gas convection);

(260 5) C; (10 1) s

(0.01 %

+ 5 m

)

(0.025 %

+ 5 m

)

Component

solvent

resistance

Isopropyl alcohol; 50 C;

No visible damage

4.29

4.30

45 (XA)

method 2

Solvent

resistance of

marking

Isopropyl alcohol; 50 C;

method 1, toothbrush

Marking legible; no visible damage

No visible damage

4.32

4.33

21 (Ue₃)

21 (Ue₁)

Shear (adhesion)

45 N

No visible damage, no open circuit in bent position

Substrate

bending

Depth 2 mm, 3 times

U_RMS= U_ins; 60 s

(3)

(0.02 %

+ 10 m)

(0.05 % R + 10 m)

4.7

Voltage proof

Flammability

No flashover or breakdown

IEC 60 695-11-5 ⁽⁴⁾

needle flame test; 10 s

4.35

No burning after 30 s

Notes

⁽¹⁾The pulse load stability of professional MELF resistors applies for precision resistors also. However, severe pulse loads are likely to jeopardize

precision stability requirements.

⁽²⁾Wave soldering is not recommended.

⁽³⁾Special requirements apply to MICRO-MELF, MMU 0102:

- R < 100  (0.15 % R + 10 m).

- 100  

R  10 k 0.1 % R.

- R > 10 k: 0.05 %

(4)

The quoted IEC standards are also released as EN standards with the same number and identical contents.

www.vishay.com

For technical questions, contact: melf@vishay.com

This document is subject to change without notice.

Document Number: 28714

Revision: 05-Mar-12

THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

MMU 0102, MMA 0204, MMB 0207 - Precision

Precision MELF Resistors

Vishay Beyschlag

Last Digit of 12NC Indicating Resistance Decade

HISTORICAL 12NC INFORMATION

• The resistors had a 12-digit numeric code starting with

2312.

RESISTANCE DECADE

10  to 99.9 

LAST DIGIT

100 to 999 

• The subsequent 4 digits indicated the resistor type,

specification and packaging; see the 12NC table.

1 k to 9.99 k

10 k to 99.9 k

100 k to 999 k

1 M to 9.99 M

• The remaining 4 digits indicated the resistance value:

- The first 3 digits indicated the resistance value.

Historical 12NC Example

- The last digit indicated the resistance decade in

accordance with the 12NC Indicating Resistance

Decade table.

The 12NC of a MMA 0204 resistor, value 47 k and TCR 25

with 0.1 % tolerance, supplied in blister tape of 3000 units

per reel was: 2312 156 74703.

HISTORICAL 12NC - Resistor type and packaging

2312 ... .....

DESCRIPTION

BLISTER TAPE ON REEL

BULK CASE

1000 units

3000 units

8000 units

TYPE

TCR

TOL.

10 000 units

0.25 %

0.1 %

0.5 %

0.25 %

0.1 %

171 6....

171 7....

172 5....

172 6....

172 7....

166 6....

166 7....

167 5....

167 6....

167 7....

176 6....

176 7....

177 5....

177 6....

177 7....

061 6....

061 7....

062 5....

062 6....

062 7....

25 ppm/K

MMU 0102

TYPE

15 ppm/K

1000 units

3000 units

TCR

TOL.

10 000 units

0.25 %

0.1 %

0.5 %

0.25 %

0.1 %

141 6....

141 7....

142 5....

142 6....

142 7....

156 6....

156 7....

157 5....

157 6....

157 7....

146 6....

146 7....

147 5....

147 6....

147 7....

041 6....

041 7....

042 5....

042 6....

042 7....

25 ppm/K

MMA 0204

15 ppm/K

1000 units

2000 units

7000 units

TYPE

TCR

TOL.

0.25 %

0.1 %

181 6....

181 7....

182 7....

196 6....

196 7....

197 7....

186 6....

186 7....

187 7....

25 ppm/K

15 ppm/K

MMB 0207

Document Number: 28714

Revision: 05-Mar-12

For technical questions, contact: melf@vishay.com

This document is subject to change without notice.

www.vishay.com

THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

Legal Disclaimer Notice

www.vishay.com

Vishay

Disclaimer

ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE

RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.

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requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements

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operating parameters, including typical parameters, must be validated for each customer application by the customer’s

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including but not limited to the warranty expressed therein.

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Material Category Policy

Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the

definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council

of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment

(EEE) - recast, unless otherwise specified as non-compliant.

Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that

all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.

Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as Halogen-Free follow Halogen-Free

requirements as per JEDEC JS709A standards. Please note that some Vishay documentation may still make reference

to the IEC 61249-2-21 definition. We confirm that all the products identified as being compliant to IEC 61249-2-21

conform to JEDEC JS709A standards.

Revision: 02-Oct-12

Document Number: 91000

231204161074 [VISHAY]

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