WSC, WSN

Wirewound Resistors,

Precision Power, Surface Mount

Vishay Dale

Document Number: 30102

For technical questions contact: ww2aresistors@vishay.com

www.vishay.com

Revision: 14-Feb-06

219

DIMENSIONS

W

L

T

W1

H

l

a

b

MODEL

DIMENSIONS in inches [millimeters]

LH

T

W

WSC01/2

0.200 ± 0.020

[5.08 ± 0.508]

0.096 ± 0.015

[2.44 ± 0.381]

0.040 ± 0.010

[1.02 ± 0.254]

0.125 ± 0.005

[3.18 ± 0.127]

0.050 ± 0.010

[1.27 ± 0.254]

WSC0001

0.250 ± 0.020

[6.35 ± 0.508]

0.110 ± 0.015

[2.79 ± 0.381]

0.045 ± 0.010

[1.14 ± 0.254]

0.150 ± 0.005

[3.81 ± 0.127]

0.098 ± 0.005

[2.49 ± 0.127]

WSC2515

0.250 ± 0.020

[6.35 ± 0.508]

0.110 ± 0.015

[2.79 ± 0.381]

0.045 ± 0.010

[1.14 ± 0.254]

0.150 ± 0.005

[3.81 ± 0.127]

0.098 ± 0.005

[2.49 ± 0.127]

WSC0002

0.445 ± 0.032

[11.30 ± 0.813]

0.162 ± 0.015

[4.11 ± 0.381]

0.100 ± 0.010

[2.54 ± 0.254]

0.275 ± 0.005

[6.98 ± 0.127]

0.215 ± 0.005

[5.46 ± 0.127]

WSC4527

0.455 ± 0.020

[11.56 ± 0.508]

0.167 ± 0.010

[4.24 ± 0.254]

0.100 ± 0.010

[2.54 ± 0.254]

0.275 ± 0.005

[6.98 ± 0.127]

0.215 ± 0.005

[5.46 ± 0.127]

WSC6927

0.690 ± 0.032

[17.53 ± 0.813]

0.280 ± 0.015

[7.11 ± 0.381]

0.100 ± 0.010

[2.54 ± 0.254]

0.275 ± 0.005

[6.98 ± 0.127]

0.215 ± 0.015

[5.46 ± 0.381]

MODEL

SOLDER PAD DIMENSIONS in inches [millimeters]

ab

l

WSC01/2

0.085 [2.16]

0.070 [1.78]

0.080 [2.03]

WSC0001

0.090 [2.29]

0.115 [2.92]

0.120 [3.05]

WSC2515

0.090 [2.29]

0.115 [2.92]

0.120 [3.05]

WSC0002

0.155 [3.94]

0.230 [5.84]

0.205 [5.21]

WSC4527

0.155 [3.94]

0.230 [5.84]

0.205 [5.21]

WSC6927

0.155 [3.94]

0.235 [5.97]

0.470 [11.94]

Embossed Carrier Tape per EIA-481-1, 2, 3

PERFORMANCE

TEST

CONDITIONS OF TEST

TEST LIMITS

Thermal Shock

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

± (0.5 % + 0.05

Ω)

Short Time Overload

5 x rated power for 5 seconds

± (0.2 % + 0.05

Ω)

Low Temperature Storage

- 65 °C for 24 hours

± (0.2 % + 0.05

Ω)

High Temperature Exposure

1000 hours at + 275 °C (+ 175 °C for WSC01/2, WSC0001 and WSC0002)

± (0.5 % + 0.05

Ω)

Bias Humidity

+ 85 °C, 85 % RH, 10 % Bias, 1000 hours

± (0.2 % + 0.05

Ω)

Mechanical Shock

100 g’s for 11 milliseconds, 5 pulses

± (0.1 % + 0.05

Ω)

Vibration

Frequency varied 10 to 500 Hz in one minute, 3 directions, 9 hours

± (0.1 % + 0.05

Ω)

Load Life

1000 hours at rated power, + 70 °C, 1.5 hours “ON”, 0.5 hours “OFF”

± (1.0 % + 0.05

Ω)

Resistance to Solder Heat

+ 260 °C Solder, 10 -12 second dwell, 25 mm/second emergence

± (0.5 % + 0.05

Ω)

PACKAGING

MODEL

REEL

TAPE WIDTH

DIAMETER

PIECES/REEL

CODE

WSC01/2

12 mm/Embossed Plastic

330 mm/13"

2000

EA/TA

WSC0001/WSC2515

16 mm/Embossed Plastic

330 mm/13"

2000

EA/TA

WSC0002/WSC4527

24 mm/Embossed Plastic

330 mm/13"

1200

EA/TA

WSC6927

32 mm/Embossed Plastic

330 mm/13”

725

EA/TA

Temperature Rise

0

0.5

1.0

1.5

2.0

2.5

3.0

Power in W

200

150

100

50

0

WSC0001

WSC2515

WSC01/2

WSC6927

WSC0002

WSC4527

Derating

- 65

- 25

25

75

125

175

225

275

Ambient Temperature in

°C

120

100

80

60

40

20

0

70

WSC2515

WSC4527

WSC6927

WSC01/2

WSC0001

WSC0002