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RWR71 View Datasheet(PDF) - Vishay Semiconductors

Part Name
Description
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RWR71 Datasheet PDF : 4 Pages
1 2 3 4
www.vishay.com
MATERIAL SPECIFICATIONS
Element: copper-nickel alloy or nickel-chrome alloy,
depending on resistance value
Core: ceramic, beryllium oxide (1), steatite or alumina,
depending on power requirement
Coating: special high temperature silicone
Terminal and Winding: the terminal and the winding are
identified by a letter symbol in the military type designation.
Military symbol:
S = solderable, inductively wound
W = weldable, inductively wound
N = solderable, non-inductively wound
Z = weldable, non-inductively wound
Terminals: solderable - Tinned Copperweld®
Weldable - bare nickel per MIL-STD-1276, Type N-1
End Caps: stainless steel
Part Marking: source code, JAN, military PIN, date/lot code
Note
(1) RWR82S and RWR82N: Core consists of beryllium oxide
ceramic
RWR Military
Vishay Dale
DERATING
120
100
80
60
40
20
0
- 65 - 50
0 25 50
150
250
AMBIENT TEMPERATURE IN °C
PERFORMANCE
TEST
CONDITIONS OF TEST
Thermal Shock
MIL-STD-202, method 107
Short Time Overload
5x rated power (RWR71, RWR80, RWR81, RWR89, RWR82),
10 x rated power (RWR74, RWR78, RWR84) for 5 s
Dielectric Withstanding Voltage
Low Temperature Storage
500 VRMS (RWR80, RWR81, RWR82),
1000 VRMS (RWR71, RWR74, RWR78, RWR84, RWR89), 1 min duration
-55 °C for 24 h
High Temperature Exposure
250 °C for 2000 h
Moisture Resistance
MIL-STD-202, method 106
Shock, Specified Pulse
MIL-STD-202, method 213, condition I
Vibration, High Frequency
MIL-STD-202, method 204, condition D
Load Life
2000 h at rated power, +25 °C, 1.5 h “ON”, 0.5 h “OFF”
Extended Life
10 000 h at rated power, +25 °C, 1.5 h “ON”, 0.5 h “OFF”
Terminal Strength
MIL-STD-202, method 211, condition A and C
5 pound (RWR80, RWR81, RWR82),
10 pound (RWR71, RWR74, RWR78, RWR84, RWR89)
Note
(1) For resistance values above 100 , test limit is ± 1.0 %
TEST LIMITS
± (0.2 % + 0.005 ) R
± (0.2 % + 0.005 ) R
± (0.1 % + 0.005 ) R
± (0.1 % + 0.005 ) R
± (1.0 % + 0.005 ) R (1)
± (0.2 % + 0.005 ) R
± (0.1 % + 0.005 ) R
± (0.1 % + 0.005 ) R
± (0.5 % + 0.005 ) R
± (1.0 % + 0.005 ) R
± (0.1 % + 0.005 ) R
Revision: 15-Nov-17
3
Document Number: 30203
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
 

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