MFR2500Z02JA1 [VISHAY]
Fusible, Non-Flammable Resistors; 易熔，不易燃电阻
| 型号： | MFR2500Z02JA1 |
| 厂家： | 
VISHAY |
| 描述： | Fusible, Non-Flammable Resistors |
| 文件： | 总9页 (文件大小：745K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NFR25/25H
Vishay BCcomponents
Fusible, Non-Flammable Resistors
FEATURES
• Overload protection without risk of fire
• Wide range of overload currents
(refer Fusing Characteristics graphs)
• Lead (Pb)-free solder contacts
• Pure tin plating provides compatibility with lead (Pb)-free
A homogenous film of metal alloy is deposited on a high
grade ceramic body. After a helical groove has been cut in
the resistive layer, tinned connecting wires of electrolytic
copper are welded to the end-caps. The resistors are coated
with a grey, flame retardant lacquer which provides
electrical, mechanical, and climatic protection. The
encapsulation is resistant to all cleaning solvents in
accordance with “MIL-STD-202E, method 215”, and
“IEC 60068-2-45”.
and lead containing soldering processes
• Compatible with “Restriction of the use of Hazardous
Substances” (RoHS) directive 2002/95/EC (issue 2004)
APPLICATIONS
• Audio
• Video
TECHNICAL SPECIFICATIONS
VALUE
DESCRIPTION
NFR25
NFR25H
Resistance Range (1)
Resistance Tolerance and Series
Maximum Dissipation at Tamb = 70 °C
Thermal Resistance Rth
Temperature Coefficient:
0.22 Ω ≤ R ≤ 4.7 Ω
0.22 Ω to 15 kΩ
5 ꢀ% E24 series
0.33 W
0.5 W
240 K/W
150 K/W
≤
≤
≤
200 x 10-6/K
200 x 10-6/K
100 x 10-6/K
250 V
≤
≤
≤
200 x 10-6/K
100 x 10-6/K
100 x 10-6/K
350 V
4.7 Ω < R ≤ 15 Ω
15 Ω < R ≤ 15 kΩ
Maximum Permissible Voltage (DC or RMS)
Basic Specifications
Climatic Category (IEC 60068)
Stability After:
IEC 60115-1 and 60115-2
55/155/56
Load
ΔR max.: (1 ꢀ R + 0.05 Ω)
ΔR max.: (1 ꢀ R + 0.05 Ω)
ΔR max.: (0.25 ꢀ R + 0.05 Ω)
Climatic Tests
Soldering
Notes:
(1)
Ohmic values (other than resistance range) are available on request
•
R value is measured with probe distance of 24 1 mm using 4-terminal method
12NC INFORMATION
Last Digit of 12NC Indicating Resistance Decade
RESISTANCE DECADE
LAST DIGIT
• The resistors have a 12-digit numeric code starting with 23
0.22 to 0.91 Ω
1 to 9.1 Ω
10 to 91 Ω
100 to 910 Ω
1 to 9.1 kΩ
10 to 15 kΩ
7
8
9
1
2
3
• The subsequent 7 digits indicate the resistor type and
packaging
• The remaining 3 digits indicate the resistance values:
– The first 2 digits indicate the resistance value
– The last digit indicates the resistance decade
12NC Example
The 12NC for a NFR25 resistor with value 750 Ω, supplied
on bandolier of 1000 units in ammopack is:
2322 205 13751.
a
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Document Number: 28737
Revision: 21-Feb-08
NFR25/25H
Fusible, Non-Flammable Resistors
Vishay BCcomponents
12NC - resistor type and packaging
ORDERING CODE 23.. ... .....
BANDOLIER IN AMMOPACK
STRAIGHT LEADS
BANDOLIER
ON REEL
TYPE
RADIAL TAPED
STRAIGHT LEADS
4000
1000
5000
5000
UNITS
UNITS
UNITS
UNITS
NFR25
06 204 03...
06 207 03...
22 205 13...
22 207 13...
22 205 33...
22 207 33...
22 205 23...
22 207 23...
NFR25H
PART NUMBER AND PRODUCT DESCRIPTION
PART NUMBER: NFR2500002207JA100
N
F
R
2
5
0
0
0
0
2
2
0
7
J
A
1
0
0
PACKAGING (1)
MODEL/SIZE SPECIAL CHARACTER
TCR/MATERIAL
VALUE
TOLERANCE
SPECIAL
NFR2500
NFR25H0
0 = Neutral
Z = Value overflow
(Special)
0 = Standard
3 digit value
1 digit multiplier
MULTIPLIER
7 = *10-3
J = 5 ꢀ
N4
A5
A1
R5
The 2 digits
are used for
all special
parts.
00 = Standard
8 = *10-2
9 = *10-1
0 = *100
1 = *101
2 = *102
PRODUCT DESCRIPTION: NFR25 5 % A1 R22
NFR25
5 %
A1
R22
MODEL/SIZE
TOLERANCE
PACKAGING (1)
RESISTANCE VALUE
NFR25
NFR25H
5 ꢀ
N4
A5
A1
R5
1K0 = 1 kΩ
4R7 = 4.7 Ω
Notes:
(1)
Please refer to table PACKAGING for details.
•
The PART NUMBER is shown to facilitate the introduction of a unified part numbering system for ordering products.
PACKAGING
CODE
PIECES
4000
DESCRIPTION
MODEL/SIZE
N4
Bandolier in ammopack radial taped
Bandolier in ammopack straight leads
Bandolier in ammopack straight leads
Bandolier on reel straight leads
A5
5000
NFR25, NFR25H
A1
1000
R5
5000
Document Number: 28737
Revision: 21-Feb-08
For technical questions, contact: filmresistors.leaded@vishay.com
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127
NFR25/25H
Fusible, Non-Flammable Resistors
Vishay BCcomponents
DIMENSIONS
L
1
Ø d
Ø D
L
2
Outline
DIMENSIONS - resistor types and relevant physical dimensions
Ø Dmax.
L1 max.
L2 max.
TYPE
Ø d
NFR25
2.5
6.5
7.5
0.58 0.05
NFR25H
OUTLINES
MASS PER 100 UNITS
The length of the body (L1) is measured by inserting the
leads into holes of two identical gauge plates and moving
these plates parallel to each other until the resistor body is
clamped without deformation (“IEC publication 60294”).
MASS
(g)
TYPE
NFR25
20.1
NFR25H
20.1
FUNCTIONAL PERFORMANCE
PRODUCT CHARACTERIZATION
MARKING
The nominal resistance and tolerance are marked on the
resistor using four coloured bands in accordance with
IEC publication 60062 “Color codes for fixed resistors”.
Standard values of nominal resistance are taken from the
E24 series for resistors with a tolerance of 5 ꢀ.
The values of the E24 series are in accordance with
“IEC publication 60063”.
For ease of recognition a fifth ring is added, which is violet for
type NFR25 and white for type NFR25H.
LIMITING VALUES
LIMITING VOLTAGE (1)
(V)
LIMITING POWER
(W)
TYPE
NFR25
250
350
0.33
0.5
NFR25H
Note:
(1) The maximum voltage that may be continuously applied to the resistor element, see “IEC publication 60115-1”.
The maximum permissible hot-spot temperature is 155 °C.
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Document Number: 28737
Revision: 21-Feb-08
NFR25/25H
Fusible, Non-Flammable Resistors
Vishay BCcomponents
The power that the resistor can dissipate depends on the operating
temperature.
The resistors will fuse without the risk of fire and within an indicated
range of overload. Fusing means that the resistive value of the
resistor increases at least 100 times.
The fusing characteristic is measured under constant voltage.
3
P
10
max.
(%P
)
rated
t
(s)
100
50
0
2
10
10
1
- 55
0
50 70
100
155
(°C)
T
amb
- 1
10
0
4
8
12
16
20
Poverload
24
Maximum dissipation (Pmax.) in percentage of rated power as a
(W)
function of the ambient temperature (Tamb
)
NFR25 This graph is based on measured data which may deviate
according to the application. Fusing Characteristics: ≤ 1 Ω
Derating
3
2
3
10
10
t
(s)
t
(s)
2
10
10
10
10
1
1
- 1
- 1
10
10
0
4
8
12
0
4
8
12
(W)
(W)
Poverload
Poverload
NFR25 This graph is based on measured data
which may deviate according to the application.
Fusing Characteristics: 1 Ω ≤ R ≤ 15 Ω
NFR25 This graph is based on measured data
which may deviate according to the application.
Fusing Characteristics: 15 Ω ≤ R ≤ 15 kΩ
3
3
10
10
t
t
(s)
(s)
2
2
10
10
10
1
10
1
- 1
0
- 1
0
10
10
4
8
12
16
20
24
4
8
12
16
20
24
Poverload (W)
P
overload (W)
NFR25H This graph is based on measured data
which may deviate according to the application.
Fusing Characteristics: ≤ 1 Ω
NFR25H This graph is based on measured data
which may deviate according to the application.
Fusing Characteristic: 1 Ω ≤ R ≤ 15 kΩ
Fusing Characteristics
Document Number: 28737
Revision: 21-Feb-08
For technical questions, contact: filmresistors.leaded@vishay.com
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129
NFR25/25H
Fusible, Non-Flammable Resistors
Vishay BCcomponents
103
Pmax.
(W)
103
t
tp/ i = 1000
500
200
100
10
1
50
20
10
5
2
10- 1
10- 6
10- 5
10- 4
10- 3
10- 2
10- 1
1
t
i (s)
NFR25 Pulse on a regular basis% maximum permissible peak pulse power (Pmax.) as a function
of pulse duration (ti), 0.22 Ω ≤ R < 15 Ω
103
Pmax.
(W)
102
10
tp
t
i
/
= 1000
100
1
20
2
10- 1
10- 6
10- 5
10- 4
10- 3
10- 2
10- 1
1
t
i (s)
NFR25 Pulse on a regular basis% maximum permissible peak pulse power (Pmax.) as a function
of pulse duration (ti), 15 Ω < R ≤ 15 kΩ
600
Vmax.
(V)
500
400
300
200
100
0
10- 6
10- 5
10- 4
10- 3
10- 2
10- 1
1
t
i (s)
NFR25 Pulse on a regular basis% maximum permissible peak pulse voltage Vmax. as a function
of pulse duration (ti)
Pulse Loading Capabilities
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Document Number: 28737
Revision: 21-Feb-08
NFR25/25H
Fusible, Non-Flammable Resistors
Vishay BCcomponents
103
Pmax.
(W)
tp
t
/
i = 1000
500
102
200
100
50
20
10
10
1
5
2
10- 1
10- 6
10- 5
10- 4
10- 3
10- 2
10- 1
1
t
i (s)
NFR25H Pulse on a regular basis% maximum permissible peak pulse power (Pmax.) as a function
of pulse duration (ti)
1200
Vmax.
(V)
800
400
0
10- 6
10- 5
10- 4
10- 3
10- 2
10- 1
1
ti (s)
NFR25H Pulse on a regular basis% maximum permissible peak pulse voltage (Vmax.) as a function
of pulse duration (ti)
Pulse Loading Capabilities
100
∆T
(K)
80
60
40
20
0
NFR25 Hot-spot temperature rise (ΔT)
as a function of dissipated power
0
0.2
0.4
0.6
P (W)
Application Information
Document Number: 28737
Revision: 21-Feb-08
For technical questions, contact: filmresistors.leaded@vishay.com
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131
NFR25/25H
Fusible, Non-Flammable Resistors
Vishay BCcomponents
100
50
∆T
∆T
(K)
(K)
80
40
5 mm
30
60
10 mm
15 mm
20
10
0
40
20
0
0
0.2
0.4
0.6
0
0.2
0.4
0.6
P (W)
P (W)
Minimum distance from resistor body to PCB = 1 mm
NFR25 Temperature rise (ΔT) at the lead end (soldering point)
as a function of dissipated power at various lead lengths after
mounting
NFR25H Hot-spot temperature rise (ΔT) as a
function of dissipated power.
50
∆
T
(K)
5 mm
40
10 mm
30
15 mm
20
10
0
0
0.2
0.4
0.6
P
(W)
Minimum distance from resistor body to PCB = 1 mm
NFR25H Temperature rise (ΔT) at the lead end (soldering point) as a
function of dissipated power at various lead lengths after mounting
Application Information
TESTS AND REQUIREMENTS
Essentially all tests are carried out in accordance with the
schedule of “IEC publication 60115-1”, category
LCT/UCT/56 (rated temperature range: Lower Category
Temperature, Upper Category Temperature% damp heat,
long term, 56 days). The testing also covers the
requirements specified by EIA and EIAJ.
In the Test Procedures and Requirements table the tests and
requirements are listed with reference to the relevant clauses
of “IEC publications 60115-1 and 60068-2”% a short
description of the test procedure is also given. In some
instances deviations from the IEC recommendations were
necessary for our method of specifying. For inflammability
requirements reference is made to “IEC 60115-1” and to
“EN 140000, appendix D”.
The tests are carried out in accordance with IEC publication
60068-2, “Recommended basic climatic and mechanical
robustness testing procedure for electronic components” and
under standard atmospheric conditions according to
“IEC 60068-1”, subclause 5.3.
All soldering tests are performed with mildly activated flux.
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Document Number: 28737
Revision: 21-Feb-08
NFR25/25H
Fusible, Non-Flammable Resistors
Vishay BCcomponents
TEST PROCEDURES AND REQUIREMENTS
IEC
REQUIREMENTS
IEC
60115-1
CLAUSE
60068-2
TEST
TEST
PROCEDURE
NFR25
NFR25H
METHOD
TESTS IN ACCORDANCE WITH THE SCHEDULE OF IEC PUBLICATION 60115-8
4.4.1
4.4.2
4.5
visual examination
dimensions (outline)
no holes% clean surface% no damage
see Dimensions Table
gauge (mm)
applied voltage (+ 0/- 10 ꢀ):
R < 10 Ω: 0.1 V
10 Ω ≤ R < 100 Ω: 0.3 V
100 Ω ≤ R < 1 kΩ: 1 V
1 kΩ ≤ R < 10 kΩ: 3 V
10 kΩ ≤ R ≤ 15 kΩ: 10 V
resistance
(refer note on first page for
measuring distance)
R - Rnom: max. 5 ꢀ
4.18
4.29
resistance to soldering
heat
component solvent
resistance
thermal shock: 3 s% 350 °C%
20 (Tb)
ΔR max.: (0.25 ꢀ R + 0.05 Ω)
3 mm from body
isopropyl alcohol or H2O followed by
brushing in accordance with “MIL 202 F
2 s% 235 °C
45 (Xa)
20 (Ta)
no visual damage
”
4.17
4.7
solderability
good tinning% no damage
no breakdown or flashover
URMS = 500 VRMS during
1 min% metal block method
voltage proof on insulation
4.16
4.16.2
4.16.3
21 (U)
21 (Ua1)
robustness of terminations:
tensile all samples
bending half number of
samples
load 10 N% 10 s
number of failures < 10 x 10−6
number of failures < 10 x 10−6
21 (Ub)
21 (Uc)
29 (Eb)
load 5 N% 4 x 90°
4.16.4
4.20
torsion other half of
samples
no damage
ΔR max.: (0.25 ꢀ R + 0.05 Ω)
no damage
ΔR max.: (0.25 ꢀ R + 0.05 Ω)
3 x 360° in opposite directions
bump
3 x 1500 bumps in 3 directions% 40 g
4.22
frequency 10 Hz to 500 Hz%
displacement 1.5 mm or acceleration
10 g% 3 directions% total 6 h
(3 x 2 h)
no damage
ΔR max.: (0.25 ꢀ R + 0.05 Ω)
6 (Fc)
vibration
4.19
rapid change of
temperature
30 min at LCT and
30 min at UCT% 5 cycles
no visual damage
ΔR max.: (0.25 ꢀ + 0.05 Ω)
14 (Na)
4.23
climatic sequence:
4.23.3
damp heat (accelerated)
30 (Db)
30 (Db)
1st cycle
4.23.6
4.24.2
Rins min.: 103 MW
ΔR max.: (1 ꢀ R + 0.05 Ω)
damp heat (accelerated)
remaining cycles
6 days% 55 °C% 95 ꢀ to 98 ꢀ RH
56 days% 40 °C% 90 ꢀ to 95 ꢀ RH%
loaded with 0.01 Pn
damp heat
(steady state) (IEC)
Rins max.: 1000 MΩ
ΔR max.: (1 ꢀ R + 0.05 Ω)
3 (Ca)
(IEC steps: 4 to 100 V)
4.25.1
1000 h%
endurance (at 70 °C)
loaded with Pn or Vmax.
%
ΔR max.: (1 ꢀ R + 0.05 Ω)
ΔR max.: (1 ꢀ R + 0.05 Ω)
1.5 h ON and 0.5 h OFF
4.25.3
4.8.4.2
endurance at upper
category temperature
1000 h%
no load
at 20/LCT/20 °C and
20/UCT/20 °C (TCR x 10−6/K):
0.22 Ω ≤ R ≤ 4.7 Ω
4.7 Ω < R ≤ 15 Ω
15 Ω < R ≤ 15 kΩ
“IEC publication 60195”
cheese-cloth
≤
≤
≤
200 x 10-6/K
200 x 10-6/K
100 x 10-6/K
≤
≤
≤
200 x 10-6/K
100 x 10-6/K
100 x 10-6/K
temperature coefficient
4.12
4.26
noise
accidental overload
< 0.1 µV/V
nonflammable
OTHER TESTS IN ACCORDANCE WITH IEC 60115 CLAUSES AND IEC 60068 TEST METHOD
4.17
8 h steam or 16 h 155 °C%
leads immersed 6 mm
for 2 0.5 s
solderability
(after ageing)
good tinning (≥ 95 ꢀ covered)%
20 (Ta)
no damage
in a solder bath at 235 5 °C
4.6.1.1
maximum voltage Umax. DC = 500 V
after 1 min% metal block method
insulation resistance
pulse load
Rins min.: 104 MΩ
see 2nd amendment
to “IEC 60115-1”, Jan.’87
see the Pulse Loading Capabilities
graphs
Document Number: 28737
Revision: 21-Feb-08
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133
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
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