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WSL3637
Vishay Dale
Power Metal Strip(R) Resistors, Low Value, Surface Mount, 4-Terminal
FEATURES
* 4-Terminal design allows for 0.5% resistance tolerance down to 0.003 * Ideal for all types of current sensing, voltage division and pulse applications including switching and linear power supplies, instruments and power amplifiers * Proprietary processing technique produces extremely low resistance values * All welded construction * Solid metal Nickel-chrome alloy resistive element * Solderable terminations * Enscapsulated with a high temperature coating * Very low inductance, .5H to 5H * Excellent frequency response
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL MODEL POWER RATING P70C W 3.0 TOLERANCE % 0.5 & 1.0 RESISTANCE RANGE 0.001 - 0.01
WSL3637
TECHNICAL SPECIFICATIONS
PARAMETER Temperature Coefficient Operating Temperature Range Maximum Working Voltage Weight/1000 pcs UNIT ppm/C C V g WSL3637 0.001 - 0.0299 = 75 0.003 - 0.010 = 50 - 65 / + 170 (P x R)1/2 274.3
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: WSL36375L000FEA (preferred part numbering format)
W
GLOBAL MODEL WSL3637
S
L
3
6
3
7
5
L
0
0
0
F
E
A
SPECIAL (Dash Number) (up to 2 digits) From 1-99 as applicable
VALUE L = Miliohm R = Decimal 5L000 = 0.005 R0100 = 0.01 0.005
TOLERANCE D = 0.5% F = 1.0%
PACKAGING EA = Lead Free, tape/reel EK = Lead Free, Bulk TA = Tin/Lead, tape/reel (R86) BA = Tin/Lead, bulk (B43)
Historical Part Number example: WSL3637
1%
EA
(will continue to be accepted)
WSL3637
HISTORICAL MODEL
0.005
RESISTANCE VALUE
1%
TOLERANCE CODE
EA
PACKAGING
Document Number: 30099 Revision: 11-Sep-04
For technical questions contact: ww2bresistors@vishay.com
www.vishay.com 1
WSL3637
Vishay Dale
DIMENSIONS
Power Metal Strip(R) Resistors, Low Value, Surface Mount, 4-Terminal
H A W B T L
I d a b
c
DIMENSIONS in inches [millimeters] MODEL RESISTANCE RANGE 0.002 - 0.01 WSL3637 0.001 - 0.0019 L W H T 0.086 0.010 [2.18 0.254] 0.138 0.010 [3.51 0.254] A 0.061 0.010 [1.55 0.254] 0.061 0.010 [1.55 0.254] B 0.032 0.010 [0.813 0.254] 0.032 0.010 [0.813 0.254]
0.370 0.010 0.360 0.010 0.025 0.010 [9.40 0.254] [9.14 0.254] [0.635 0.254] 0.370 0.010 0.360 0.010 0.025 0.010 [9.40 0.254] [9.14 0.254] [0.635 0.254]
SOLDER PAD DIMENSIONS in inches [millimeters] MODEL RESISTANCE RANGE 0.002 - 0.01 0.001 - 0.0019
RATED POWER IN % 120 100 80
a 0.116 [2.95] 0.168 [4.27]
b 0.366 [9.30] 0.366 [9.30]
c 0.066 [1.68] 0.066 [1.66]
d 0.024 [0.610] 0.024 [0.610]
l 0.178 [4.52] 0.074 [1.88]
WSL3637
60
40
20
0 -65
-55
-25
0
25
50 70
75
100
125
150
170
Derating
AMBIENT TEMPERATURE IN C
PERFORMANCE
TEST Thermal Shock Short Time Overload Low Temperature Storage High Temperature Exposure Bias Humidity Mechanical Shock Vibration Load Life Solder Heat Moisture Resistance CONDITIONS OF TEST - 55C to + 150C, 1000 cycles, 15 minutes at each extreme 5 x Rated Power for 5 seconds - 65C for 24 hours 1000 hours @ + 170C + 85C, 85% RH, 10% Bias, 1000 hours 100g's for 6 milliseconds, 5 pulses Frequency varied 10 to 2000Hz in 1 minute, 3 directions, 12 hours 1000 hours @ rated power, +70C, 1.5 hours "ON", 0.5 hours "OFF" + 260C Solder, 10-12 second dwell, 25mm/second emergence MIL-STD-202, Method 106, 0% power, 7a and 7b not required TEST LIMITS (0.5% + 0.0005)R (0.5% + 0.0005)R (0.5% + 0.0005)R (1.0% + 0.0005)R (0.5% + 0.0005)R (0.5% + 0.0005)R (0.5% + 0.0005)R (1.0% + 0.0005)R (0.5% + 0.0005)R (0.5% + 0.0005)R
PACKAGING
MODEL WSL3637 www.vishay.com 2 REEL TAPE WIDTH 16mm/Embossed Plastic DIAMETER 330mm/13" PIECES/REEL 4000 CODE EA Document Number: 30099 Revision: 11-Sep-04
Embossed carrier tape per EIA-481-2 For technical questions contact: ww2bresistors@vishay.com

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