Wirewound Resistors, Military/Established Reliability
MIL-PRF-39009 Qualified, Type RER, R Level
www.vishay.com For technical questions, contact: ww2bresistors@vishay.com Document Number: 30200
1Revision: 23-Feb-11
RER Military
Vishay Dale
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
VISHAY
REFERENCE
MODEL
POWER RATING
P25 °C
W
RESISTANCE RANGE
TOLERANCE
± %
WEIGHT
(typical)
g
RER40 ENH05 5 1 to 1.65K 1 3.3
RER45 ENH10 10 1 to 2.8K 1 8.8
RER50 ENH25 20 1 to 6.04K 1 16.5
RER55 ENH50 30 1 to 4.99K 1 35
RER60 ERH05 5 0.10 to 3.32K 1 3
RER65 ERH10 10 0.10 to 5.62K 1 6
RER70 ERH25 20 0.10 to 12.1K 1 13
RER75 ERH50 30 0.10 to 39.2K 1 28
TECHNICAL SPECIFICATIONS
PARAMETER UNIT RER40/RER60 RER45/RER65 RER50/RER70 RER55/RER75
Free Air Power Rating at 25 °C W 3 6 8 10
Temperature Coefficient ppm/°C ± 20 for 20 and above; ± 50 for 1 to 19.9 ; ± 100 for 0.1 to 0.99
Maximum Working Voltage V (P x R)1/2
Insulation Resistance 10 000 M minimum dry, 1000 M minimum after moisture test
Solderability - Meets requirements of ANSI J-STD-002
Operating Temperature Range °C - 55 to + 250
MILITARY PART NUMBER INFORMATION
Military Part Numbering example: RER65F1001RC02
MIL TYPE TOLERANCE CODE RESISTANCE VALUE FAILURE RATE PACKAGING CODE
RER40
RER45
RER50
RER55
RER60
RER65
RER70
RER75
F = ± 1.0 % 3 digit significant figure,
followed by a multiplier
49R9 = 49.9
1000 = 100
1001 = 1000
M = 1.0 %/1000 h
P = 0.1 %/1000 h
R = 0.01 %/1000 h
C02 = Tin/lead, card pack
CSL = Tin/lead, card pack,
single lot date code
R E R 6 5 F 01 0 R1 C 0 2
Document Number: 30200 For technical questions, contact: ww2bresistors@vishay.com www.vishay.com
Revision: 23-Feb-11 2
RER Military
Wirewound Resistors, Military/Established
Reliability MIL-PRF-39009 Qualified, Type
RER, R Level
Vishay Dale
DIMENSIONS
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
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
DERATING
MILITARY
MODEL
DIMENSIONS
in inches [millimeters]
ABCDEFGHJKLMNP
RER40
RER60
0.444
± 0.005
[11.280
± 0.127]
0.490
± 0.005
[12.450
± 0.127]
0.600
± 0.031
[15.240
± 0.787]
1.125
± 0.062
[28.580
± 1.570]
0.334
± 0.015
[8.480
± 0.381]
0.646
± 0.015
[16.410
± 0.381]
0.320
± 0.015
[8.130
± 0.381]
0.065
± 0.010
[1.650
± 0.254]
0.133
± 0.010
[3.380
± 0.254]
0.078
± 0.010
[1.980
± 0.254]
0.093
± 0.005
[2.360
± 0.127]
0.078
± 0.015
[1.980
± 0.381]
0.050
± 0.005
[1.270
± 0.127]
0.266
± 0.062
[6.760
± 1.570]
RER45
RER65
0.562
± 0.005
[14.270
± 0.127]
0.625
± 0.005
[15.880
± 0.127]
0.750
± 0.031
[19.050
± 0.787]
1.375
± 0.062
[34.930
± 1.570]
0.420
± 0.015
[10.670
± 0.381]
0.800
± 0.015
[20.320
± 0.381]
0.390
± 0.015
[9.910
± 0.381]
0.075
± 0.010
[1.900
± 0.254]
0.165
± 0.010
[4.190
± 0.254]
0.093
± 0.010
[2.360
± 0.254]
0.094
± 0.005
[2.390
± 0.127]
0.102
± 0.015
[2.590
± 0.381]
0.085
± 0.005
[2.160
± 0.127]
0.312
± 0.062
[7.920
± 1.570]
RER50
RER70
0.719
± 0.005
[18.260
± 0.127]
0.781
± 0.005
[19.840
± 0.127]
1.062
± 0.031
[26.970
± 0.787]
1.938
± 0.062
[49.230
± 1.570]
0.550
± 0.015
[13.970
± 0.381]
1.080
± 0.015
[27.430
± 0.381]
0.546
± 0.015
[13.870
± 0.381]
0.075
± 0.010
[1.900
± 0.254]
0.231
± 0.010
[5.870
± 0.254]
0.172
± 0.010
[4.370
± 0.254]
0.125
± 0.005
[3.180
± 0.127]
0.115
± 0.015
[2.920
± 0.381]
0.085
± 0.005
[2.160
± 0.127]
0.438
± 0.062
[11.130
± 1.570]
RER55
RER75
1.562
± 0.005
[39.670
± 0.127]
0.844
± 0.005
[21.440
± 0.127]
1.968
± 0.031
[49.990
± 0.787]
2.781
± 0.062
[70.640
± 1.570]
0.630
± 0.015
[16.000
± 0.381]
1.140
± 0.015
[28.960
± 0.381]
0.610
± 0.015
[15.490
± 0.381]
0.088
± 0.010
[2.240
± 0.254]
0.260
± 0.010
[6.600
± 0.254]
0.196
± 0.010
[4.980
± 0.254]
0.125
± 0.005
[3.180
± 0.127]
0.107
± 0.015
[2.720
± 0.381]
0.085
± 0.005
[2.160
± 0.127]
0.438
± 0.062
[11.130
± 1.570]
L
K
P
M
D
C
A
B
N
J
E
F
HG
- 55 0 50 100 150 200 250
AMBIENT TEMPERATURE IN °C
120
100
80
60
40
20
0
25
RATED POWER IN %
- 50
PERFORMANCE
TEST CONDITIONS OF TEST TEST LIMITS
Low Temperature Operation Apply rated power until thermal stability, remove power subject to
air temperature of - 55 °C for 15 min to 30 min ± (0.5 % + 0.01 ) R
Short Time Overload 5 x rated power for 5 s ± (0.3 % + 0.01 ) R
Dielectric Withstanding Voltage 1000 Vrms (RER40, RER45, RER50, RER60, RER65, RER70),
2000 Vrms (RER55 and RER75), 1 min duration ± (0.2 % + 0.01 ) R
Low Temperature Storage - 55 °C for 24 h ± (0.3 % + 0.01 ) R
High Temperature Exposure 250 °C for 2000 h ± (1.0 % + 0.01 ) R
Moisture Resistance MIL-STD-202, method 106 ± (0.5 % + 0.01 ) R
Shock, Specified Pulse MIL-STD-202, method 213, condition 1 ± (0.2 % + 0.01 ) R
Vibration, High Frequency MIL-STD-202, method 204, condition D ± (0.2 % + 0.01 ) R
Load Life 2000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF” ± (1.0 % + 0.01 ) R
Extended Life 10 000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF” ± (0.2 % + 0.01 ) R
Terminal Strength MIL-STD-202, method 211, condition A
5 pound (RER40, RER45, RER60, RER65),
10 pound (RER50, RER55,RER70, RER75) ± (0.2 % + 0.01 ) R
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www.vishay.com Vishay
Revision: 12-Mar-12 1Document Number: 91000
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