RER Military
www.vishay.com
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 Ayrton-Perry
winding for lowest reactive components
• Mounts on chassis to utilize heat-sink effect
STANDARD ELECTRICAL SPECIFICATIONS
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
MILITARY
MODEL
TECHNICAL SPECIFICATIONS
PARAMETER
Free Air Power Rating at 25 °C
UNIT
RER40/RER60
RER45/RER65
RER50/RER70
RER55/RER75
W
3
6
8
10
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
-
Meets requirements of ANSI J-STD-002
°C
-55 to +250
Temperature Coefficient
Solderability
Operating Temperature Range
MILITARY PART NUMBER INFORMATION
Military Part Numbering example: RER65F1001RC02
R
E
R
6
5
F
1
0
0
1
R
C
0
2
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
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
Revision: 05-Jan-18
49R9 = 49.9
1000 = 100
1001 = 1000
Document Number: 30200
1
For technical questions, contact: ww2aresistors@vishay.com
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
RER Military
www.vishay.com
Vishay Dale
DIMENSIONS
D
C
A
M
N
F
E
H
B
G
J
P
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]
K
L
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]
DERATING
MATERIAL SPECIFICATIONS
RATED POWER IN %
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
100
80
60
40
20
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
120
0
- 55 - 50
0
50
25
100
150
200
250
AMBIENT TEMPERATURE IN °C
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
Revision: 05-Jan-18
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 VRMS (RER40, RER45, RER50, RER60, RER65, RER70),
2000 VRMS (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 I
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)
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
± (2.0 % + 0.01 ) R
± (0.2 % + 0.01 ) R
Document Number: 30200
2
For technical questions, contact: ww2aresistors@vishay.com
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
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.
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 in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay's knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer's responsibility to validate that a particular product
with the properties described in the product specification is suitable for use in a particular application. Parameters 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 technical experts.
Product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited
to the warranty expressed therein.
Hyperlinks included in this datasheet may direct users to third-party websites. These links are provided as a convenience and
for informational purposes only. Inclusion of these hyperlinks does not constitute an endorsement or an approval by Vishay of
any of the products, services or opinions of the corporation, organization or individual associated with the third-party website.
Vishay disclaims any and all liability and bears no responsibility for the accuracy, legality or content of the third-party website
or for that of subsequent links.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk. Please
contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications.
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. Product names and markings noted herein may be trademarks of their respective owners.
© 2022 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 01-Jan-2022
1
Document Number: 91000