ESS, ESN, EGS, EGN
Vishay Dale
Wirewound Resistors, Military/Established Reliability
MIL-PRF-39007 Qualified, Type RWR, R Level
FEATURES
• High temperature silicone coated
• Complete welded construction
• Qualified to MIL-PRF-39007
• Available in non-inductive styles (types ESN and EGN)
with Aryton-Perry winding for lowest reactive components
• “S” level failure rate available
• Note: “Terminal Wire and Winding” type “W” and “Z” are
not listed below but are available upon request. Please
reference MIL-PRF-39007 QPL for approved “failure rate”
and “resistance tolerance/ranges”
STANDARD ELECTRICAL SPECIFICATIONS
MILITARY RESISTANCE RANGE Ω
MIL-PRF-39007
TYPE
POWER RATING
WEIGHT
MODEL
P25 °C
W
(typical) g
0ꢀ. ꢁ
0ꢀ5 ꢁ and . ꢁ
0.1 - 1K
EGS-1-80
EGN-1-80
EGS-2
RWR81S
RWR81N
RWR82S
RWR82N
RWR80S
RWR80N
RWR71S
RWR71N
RWR89S
RWR89N
RWR74S
RWR74N
RWR84S
RWR84N
RWR78S
RWR78N
1
1
0.499 - 1K
0.21
0.21
0.23
0.23
0.34
0.34
0.90
0.90
0.70
0.70
4.2
0.499 - 499
0.1 - 499
2
0.499 - 1.3K
0.499 - 649
0.1 - 1.3K
EGN-2
2
0.1 - 649
EGS-3-80
EGN-3-80
ESS-2A
ESN-2A
ESS-2B
ESN-2B
ESS-5
2
0.499 - 3.16K
0.499 - 1.58K
0.499 - 12.1K
0.499 - 6.04K
0.499 - 4.12K
0.499 - 2.05K
0.499 - 12.1K
0.499 - 6.04K
0.499 - 12.4K
0.499 - 6.19K
0.499 - 39.2K
0.499 - 19.6K
0.1 - 3.16K
0.1 - 1.58K
0.1 - 12.1K
0.1 - 6.04K
0.1 - 4.12K
0.1 - 2.05K
0.1 - 12.1K
0.1 - 6.04K
0.1 - 12.4K
0.1 - 6.19K
0.1 - 39.2K
0.1 - 19.6K
2
2
2
3
3
5
ESN-5
5
4.2
EGS-10-80
EGN-10-80
ESS-10
7
3.6
7
3.6
10
10
9.0
ESN-10
9.0
GLOBAL PART NUMBER INFORMATION
Global/Military Part Numbering: RWR74S49R9FSB.2
R
W
R
7
4
S
4
9
R
9
F
S
B
.
2
TERMINAL WIRE
AND WINDING
TOLERANCE
CODE
MIL TYPE
RESISTANCE VALUE
FAILURE RATE
PACKAGING CODE
RWR7.
RWR74
RWR78
RWR80
RWR8.
RWR82
RWR84
RWR89
S = Solderable, inductive
3 digit significant figure,
followed by a multiplier
B = 0.1 ꢀ
D = 0.5 ꢀ
F = 1.0 ꢀ
M = 1.0 ꢀ/1000 h
P = 0.1 ꢀ/1000 h
R = 0.01 ꢀ/1000 h
S = 0.001 ꢀ/1000 h
B.2 = Bulk pack
S70 = Tape/reel
N = Solderable, noninductive
W = Weldable, inductive (1)
Z = Weldable, noninductive (1)
(smaller than 5 W)
S73 = Tape/reel
49R9 = 49.9 Ω
.000 = 100 Ω
.00. = 1000 Ω
(5 W and higher)
BSL = Bulk pack,
single lot date code
RSL = Tape/reel,
single lot date code
Note
(1) Note that “W” and “Z” are not listed above but are available, see MIL-PRF-39007 QPL for available resistance values
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For technical questions, contact: ww2bresistors@vishay.com
document number: 30203
Revision: 22-Oct-08