MFR5-4K7DC [TTELEC]

Metal Film Resistors; 金属膜电阻器


型号：	MFR5-4K7DC
厂家：	TT Electronics
描述：	Metal Film Resistors 金属膜电阻器电阻器膜电阻器金属膜电阻器
文件：	总4页 (文件大小：1364K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Metal Film Resistors

Welwyn Components

MFR Series

Professional grade approved to

BSCECC 40101-803 and 019

•

Tolerances down to 0.5%

•

Temperature coefficient down to 50ppm/°C

Electrical Data

MFR3

0.4

10R - 1M

200

MFR4

0.5

1R0 - 10M

350

0.5, 1,2

MFR5

0.75

1R0 - 1M

350

Power rating at 70°C

Resistance range

Limiting element voltage

TCR

watts

ohms

volts

ppm/°C

≤10:150 >10:100*

0.5, 1,2

Resistance tolerance

* Note:- Tighter TCR’S are available on professional grade, consult factory for details.

Approved CECC 40101 - 019 Style

0.25

1 to 1M

250

0.25

1 to 1M

250

0.5

10 to 1M0

350

0.5

10 to 1M

350

Power rating at 70°C

Resistance range.

Limiting element voltage

TCR

watts

ohms

volts

ppm/°C

100

250

100

250

5.1 to 9.1 : 200 5.1 to 9.1 : 500

Resistance tolerance

1,2

Approved CECC 40101 - 803 Style

0.125

10 to 1M

200

0.5, 1, 2

0.125

10 to 1M

200

100

0.5, 1, 2

0.25

10 to 1M

250

0.5, 1, 2

0.25

10 to 1M

250

100

0.5, 1, 2

Power rating at 70°C

Resistance range.

Limiting element voltage

TCR

watts

ohms

volts

ppm/°C

Resistance tolerance

E24, E96 preferred

Standard values

Thermal impedance

°C/watt

°C

150

140

-55 to 155

112

Ambient temperature range

Product grades available

commercial

commercial, professional

Physical Data

Dimensions (mm) & Weight (g)

PCB

mount bend

centres radius

Min

Wt.

nom

Type

L max D max F min d nom

3.5

3.7

6.2

6.8

9.0

10.0

1.8

2.0

2.5

3.0

3.6

3.7

22.4

21.0

19.6

0.5

0.45

0.6

7.6

0.5

0.6

1.2

0.6

0.1

0.3

0.5

Professional

MFR3

MFR4

Commercial

Professional

Commercial

Professional

Commercial

10.2

12.7

0.55

0.8

MFR5

0.6

General Note

Welwyn Components reserves the right to make changes in product specification without notice or liability.

All information is subject to Welwyn’s own data and is considered accurate at time of going to print.

A subsidiary of

TT electronics plc

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

Issue D · 05.07

135

Metal Film Resistors

MFR Series

Welwyn Components

Performance Data - Type MFR 3

CECC 40101-019

Requirements

Actual Performance

Maximum

Typical

See Graph 1

0.07

Load at commercial rating : 1000 hours at 70°C

∆R %

0.8

0.5

0.1

Load at CECC rating :

Shelf life :

1000 hours at 70°C

12 months at room temperature

Not Specified

Derating

zero at 155°C

Short term overload

Climatic

∆R %

0.5

0.25

0.5

0.03

0.2

55/125/56

Climatic category

Long term damp heat

Temperature rapid change

Resistance to solder heat

Vibration and bump

∆R %

µV/V

0.5

0.3

0.05

0.5

0.25

0.5

0.25

0.02

0.5

0.1

0.01

Noise. (in a decade of frequency)

Insulation resistance

Voltage proof

Not specified

>1G

0.1

>1G

0.07

ohms

volts

>1G

350 min

400 min

Pulse handling

Data available upon request

Graph 1 – Load for 1000 hours at 70°C: maximum changes

Performance Data - Type MFR 4

CECC 40101-019

CECC 40101-803

Requirements

Actual Performance

Requirements

Maximum

Typical

Load at commercial rating :

∆R %

0.8

0.5

0.1

See Graph 2

1000 hours at 70°C

Load at CECC rating :

∆R %

See Graph 2

0.07

1000 hours at 70°C

Shelf life :

Not specified

Not Specified

12 months at room temperature

Derating

zero at 155°C

Short term overload

Climatic

∆R %

0.5

0.25

0.5

0.01

0.2

55/125/56

Climatic category

55/125/56

Long term damp heat

Temperature rapid change

Resistance to solder heat

Vibration and bump

Noise. (in a decade of frequency)

Insulation resistance

Voltage proof

∆R %

µV/V

0.5

0.25

0.1

0.3

0.04

0.5

0.25

0.5

0.25

0.07

0.5

0.25

0.01

Not Specified

>1G

Not Specified

>1G

0.1

ohms

volts

>1G

500 min

400 min

500 min

Pulse handling

Data available upon request

Graph 2 – Load for 1000 hours at 70°C: maximum changes

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

Issue D · 05.07

136

Metal Film Resistors

MFR Series

Welwyn Components

Performance Data - Type MFR 5

CECC 40101-019

CECC 40101-803

Requirements

Actual Performance

Requirements

Maximum

Typical

Load at commercial rating :

∆R %

0.9

0.5

0.1

See Graph 3

1000 hours at 70°C

Load at CECC rating :

∆R %

See Graph 3

0.07

1000 hours at 70°C

Shelf life :

Not specified

Not Specified

12 months at room temperature

Derating

zero at 155°C

Short term overload

Climatic

∆R %

0.5

0.25

0.5

0.01

0.2

55/125/56

Climatic category

55/125/56

Long term damp heat

Temperature rapid change

Resistance to solder heat

Vibration and bump

Noise. (in a decade of frequency)

Insulation resistance

Voltage proof

∆R %

µV/V

0.5

0.25

0.1

0.3

0.04

0.5

0.25

0.5

0.25

0.07

0.5

0.25

0.01

Not Specified

>1G

Not Specified

>1G

0.1

0.07

ohms

volts

>1G

700 min

500 min

700 min

Pulse handling

Data available upon request

Graph 3 – Load for 1000 hours at 70°C: maximum changes

Packaging

Construction

All MFR resistors are supplied tape packed ready for loading

on to automatic sequencing and insertion machines.

Component wires will not protrude beyond the outside edge

of the tapes.

The resistance element is a precisely controlled thin film of

metal alloy sputtered on to a high purity ceramic core,

protected by a moisture-resistant, high dielectric strength

coating applied so that terminations remain completely clear.

Alternative packaging available by request.

Terminations

Material

Hot tin dipped copper wire

Strength

The terminations meet the requirements of

IEC 68.2.21

Solderability The terminations meet the requirements of

IEC 115-1, Clause 4.17.3.2

f₁

f₂

f₁– f₂≤ 1.4 mm

Marking

0.5% and 1% tolerance resistors are colour coded with 5

bands, 2% tolerance has 4. IEC 62 colours are used.

Lead Formed resistors can also be supplied. Standard options

of Lancet, Radial and Goalpost forming are available.

Solvent Resistance

The body protection and marking are resistant to all normal

industrial cleaning solvents suitable for printed circuits.

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

Issue D · 05.07

137

Metal Film Resistors

MFR Series

Ordering Procedure

Example: Professional grade MFR4 at 4.7 kilohms and 1% tolerance in ammo pack box of 5000 pieces -

MFR4 - 4K7

Type

Value (use IEC62 code)

Tolerance (use IEC62 code)

0.5%

Packing / Grade

MFR3, MFR4

MFR5

5000/box

2500/box

5000/box

2500/box

CECC release is not available for commercial grade

Ammo

MFR4

CECC release is optionally available for professional grade *

MFR5

* For CECC released product state on order the CECC number and style.

Example: MFR4-4K7FI CECC40101-019 FZ

Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info@welwyn-tt.com Website: www.welwyn-tt.com

Issue D . 05.07

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