Document Number: 30135

For technical questions, contact: ww2bresistors@vishay.com

www.vishay.com

Revision: 15-Nov-07

43

WSMS5515

Very Low Value (down to 0.00016

Ω)

Vishay Dale

DIMENSIONS in inches

1.441

1.005

0.724

0.488

0.079

0.142

0.079

0.156

0.142

0.079

2.165 ± 0.010

1.575

0.295

CALIBRATION CUT

R 0.020 (2)

0.080 x 45°

CHAH. (4)

R 0.078 REF. (1)

R 0.028 (4)

R 0.020 (2)

Ø 0.244 THRU (2)

0.056

0.138

0.295

0.590

TOLERANCES ON DECIMALS

XXX ± 0.005

RESISTANCE

VALUE (µ

Ω)

RESISTOR

THICKNESS

(inches)

ELEMENT

MATERIAL

160

0.051

Mn-Cu

200

0.051

Mn-Cu

250

0.033

Mn-Cu

300

0.033

Mn-Cu

500

0.059

Fe-Cr

70

Derating

120

100

80

60

40

20

0

- 65 - 50

- 25

0

25

50

75

100

125

150

170

Ambient Temperature in °C

PERFORMANCE

TEST

CONDITIONS OF TEST

TEST LIMITS

Thermal Shock

- 55 °C to + 150 °C, 1000 cycles, 15 min at each extreme

± 0.5 %

ΔR

Short Time Overload

5 x rated power for 5 s

± 0.5 %

ΔR

Low Temperature Operation

- 65 °C for 45 min

± 0.5 %

ΔR

High Temperature Exposure

1000 h at + 170 °C

± 1.0 %

ΔR

Bias Humidity

+ 85 °C, 85 % RH, 10 % Bias, 1000 h

± 0.5 %

ΔR

Mechanical Shock

100 g’s for 6 ms, 5 pulses

± 0.5 %

ΔR

Vibration

Frequency varied 10 to 2000 Hz in 1 min, 3 directions, 12 h

± 0.5 %

ΔR

Load Life

1000 h at + 70 °C, 1.5 h “ON”, 0.5 h “OFF”

± 1.0 %

ΔR

Moisture Resistance

MIL-STD-202, Method 106, 0 % power, 7b not required

± 0.5 %

ΔR