RER Military
Vishay Dale
Wirewound Resistors, Military/Established Reliability
MIL-PRF-39009 Qualified, Type RER, R Level
FEATURES
• Aluminum heat sink housing
• Molded construction for total environmental protection
• Qualified to MIL-PRF-39009
• Complete welded construction
• Non-inductive styles manufactured with Aryton-Perry
winding for lowest reactive components
• Mounts on chassis to utilize heat-sink effect
STANDARD ELECTRICAL SPECIFICATIONS
MILITARY
MODEL
RER40
RER45
RER50
RER55
RER60
RER65
RER70
RER75
VISHAY
REFERENCE
MODEL
ENH05
ENH10
ENH25
ENH50
ERH05
ERH10
ERH25
ERH50
POWER RATING
P
25 °C
W
5
10
20
30
5
10
20
30
RESISTANCE RANGE
1 to 1.65K
1 to 2.8K
1 to 6.04K
1 to 4.99K
0.10 to 3.32K
0.10 to 5.62K
0.10 to 12.1K
0.10 to 39.2K
TOLERANCE
±%
1
1
1
1
1
1
1
1
WEIGHT
(typical)
g
3.3
8.8
16.5
35
3
6
13
28
TECHNICAL SPECIFICATIONS
PARAMETER
Free Air Power Rating at 25 °C
Temperature Coefficient
Maximum Working Voltage
Insulation Resistance
Solderability
Operating Temperature Range
UNIT
W
ppm/°C
V
-
°C
RER40/RER60
3
RER45/RER65
6
RER50/RER70
8
RER55/RER75
10
± 20 for 20
and above; ± 50 for 1
to 19.9
;
± 100 for 0.1
to 0.99
(P x
R)
1/2
10 000 M minimum dry, 1000 M minimum after moisture test
Meets requirements of ANSI J-STD-002
- 55 to + 250
MILITARY PART NUMBER INFORMATION
Military Part Numbering example: RER65F1001RC02
R
MIL TYPE
RER40
RER45
RER50
RER55
RER60
RER65
RER70
RER75
E
R
6
5
F
1
0
0
1
R
C
0
2
TOLERANCE CODE
F
= ± 1.0 %
RESISTANCE VALUE
3 digit significant figure,
followed by a multiplier
49R9
= 49.9
1000
= 100
1001
= 1000
FAILURE RATE
M
= 1.0 %/1000 h
P
= 0.1 %/1000 h
R
= 0.01 %/1000 h
PACKAGING CODE
C02
= Tin/lead, card pack
CSL
= Tin/lead, card pack,
single lot date code
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For technical questions, contact:
ww2bresistors@vishay.com
Document Number: 30200
Revision: 23-Feb-11
RER Military
Wirewound Resistors, Military/Established
Reliability MIL-PRF-39009 Qualified, Type
RER, R Level
DIMENSIONS
D
C
A
M
B
J
P
K
L
N
F
E
H
G
Vishay Dale
MILITARY
MODEL
RER40
RER60
RER45
RER65
RER50
RER70
RER55
RER75
A
0.444
± 0.005
[11.280
± 0.127]
0.562
± 0.005
[14.270
± 0.127]
0.719
± 0.005
[18.260
± 0.127]
1.562
± 0.005
[39.670
± 0.127]
B
0.490
± 0.005
[12.450
± 0.127]
0.625
± 0.005
[15.880
± 0.127]
0.781
± 0.005
[19.840
± 0.127]
0.844
± 0.005
[21.440
± 0.127]
C
0.600
± 0.031
[15.240
± 0.787]
0.750
± 0.031
[19.050
± 0.787]
1.062
± 0.031
[26.970
± 0.787]
1.968
± 0.031
[49.990
± 0.787]
D
1.125
± 0.062
[28.580
± 1.570]
1.375
± 0.062
[34.930
± 1.570]
1.938
± 0.062
[49.230
± 1.570]
2.781
± 0.062
[70.640
± 1.570]
E
0.334
± 0.015
[8.480
± 0.381]
0.420
± 0.015
[10.670
± 0.381]
0.550
± 0.015
[13.970
± 0.381]
0.630
± 0.015
[16.000
± 0.381]
DIMENSIONS
in inches [millimeters]
F
G
H
J
0.133
0.065
0.320
0.646
± 0.015 ± 0.015 ± 0.010 ± 0.010
[16.410 [8.130 [1.650 [3.380
± 0.381] ± 0.381] ± 0.254] ± 0.254]
0.165
0.075
0.390
0.800
± 0.015 ± 0.015 ± 0.010 ± 0.010
[20.320 [9.910 [1.900 [4.190
± 0.381] ± 0.381] ± 0.254] ± 0.254]
0.231
0.075
0.546
1.080
± 0.015 ± 0.015 ± 0.010 ± 0.010
[27.430 [13.870 [1.900 [5.870
± 0.381] ± 0.381] ± 0.254] ± 0.254]
0.260
0.088
0.610
1.140
± 0.015 ± 0.015 ± 0.010 ± 0.010
[28.960 [15.490 [2.240 [6.600
± 0.381] ± 0.381] ± 0.254] ± 0.254]
K
0.078
± 0.010
[1.980
± 0.254]
0.093
± 0.010
[2.360
± 0.254]
0.172
± 0.010
[4.370
± 0.254]
0.196
± 0.010
[4.980
± 0.254]
L
0.093
± 0.005
[2.360
± 0.127]
0.094
± 0.005
[2.390
± 0.127]
0.125
± 0.005
[3.180
± 0.127]
0.125
± 0.005
[3.180
± 0.127]
M
0.078
± 0.015
[1.980
± 0.381]
0.102
± 0.015
[2.590
± 0.381]
0.115
± 0.015
[2.920
± 0.381]
0.107
± 0.015
[2.720
± 0.381]
N
0.050
± 0.005
[1.270
± 0.127]
0.085
± 0.005
[2.160
± 0.127]
0.085
± 0.005
[2.160
± 0.127]
0.085
± 0.005
[2.160
± 0.127]
P
0.266
± 0.062
[6.760
± 1.570]
0.312
± 0.062
[7.920
± 1.570]
0.438
± 0.062
[11.130
± 1.570]
0.438
± 0.062
[11.130
± 1.570]
MATERIAL SPECIFICATIONS
Element:
Copper-nickel alloy or nickel-chrome alloy,
depending on resistance value
Core:
Ceramic, steatite or alumina, depending on physical
size
Encapsulant:
Silicone molded construction
Housing:
Aluminum with hard anodic coating
End Caps:
Stainless steel
Standard Terminals:
Tinned Copperweld
®
Part Marking:
Source code, JAN, military PIN, date/lot code
DERATING
RATED POWER IN %
120
100
80
60
40
20
0
- 55 - 50
0
25
50
100
150
200
250
AMBIENT TEMPERATURE IN °C
POWER RATING
Vishay RER resistor wattage ratings are based on mounting
to the proper heat sink.
RER40, RER45, RER60, RER65: 4" x 6" x 2" x 0.040" thick
aluminum chassis
RER50, RER55, RER70, RER75: 5" x 7" x 2" x 0.040" thick
aluminum chassis
PERFORMANCE
TEST
Low Temperature Operation
Short Time Overload
Dielectric Withstanding Voltage
Low Temperature Storage
High Temperature Exposure
Moisture Resistance
Shock, Specified Pulse
Vibration, High Frequency
Load Life
Extended Life
Terminal Strength
CONDITIONS OF TEST
Apply rated power until thermal stability, remove power subject to
air temperature of - 55 °C for 15 min to 30 min
5 x rated power for 5 s
1000 V
rms
(RER40, RER45, RER50, RER60, RER65, RER70),
2000 V
rms
(RER55 and RER75), 1 min duration
- 55 °C for 24 h
250 °C for 2000 h
MIL-STD-202, method 106
MIL-STD-202, method 213, condition 1
MIL-STD-202, method 204, condition D
2000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF”
10 000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF”
MIL-STD-202, method 211, condition A
5 pound (RER40, RER45, RER60, RER65),
10 pound (RER50, RER55,RER70, RER75)
For technical questions, contact:
ww2bresistors@vishay.com
TEST LIMITS
± (0.5 % + 0.01
) R
± (0.3 % + 0.01
) R
± (0.2 % + 0.01
) R
± (0.3 % + 0.01
) R
± (1.0 % + 0.01
) R
± (0.5 % + 0.01
) R
± (0.2 % + 0.01
) R
± (0.2 % + 0.01
) R
± (1.0 % + 0.01
) R
± (0.2 % + 0.01
) R
± (0.2 % + 0.01
) R
Document Number: 30200
Revision: 23-Feb-11
www.vishay.com
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Legal Disclaimer Notice
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Vishay
Disclaimer
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“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
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provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
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.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
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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
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Revision: 12-Mar-12
1
Document Number: 91000
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