WSR

www.vishay.com

Vishay Dale

Revision: 17-Jan-13

2

Document Number: 30101

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

DIMENSIONS

DERATING

Note

• Embossed Carrier Tape per EIA-481.

MODEL

DIMENSIONS in inches (millimeters)

LH

T

W

WSR2



WSR3

0.455 ± 0.032

(11.56 ± 0.813)

0.095 ± 0.005

(2.41 ± 0.127)

0.100 ± 0.010

(2.54 ± 0.254)

0.275 ± 0.005

(6.98 ± 0.127)

0.215 ± 0.005

(5.46 ± 0.127)

MODEL

SOLDER PAD DIMENSIONS in inches (millimeters)

ab

l

WSR2



WSR3

0.155

(3.94)

0.230

(5.84)

0.205

(5.21)

PERFORMANCE

TEST

CONDITIONS OF TEST

TEST LIMITS

WSR2

WSR3

Thermal shock

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

± (0.5 % + 0.0005

) R ± (0.5 % + 0.0005 ) R

Short time overload

WSR2: 5 x rated power for 5 s

WSR3: 4 x rated power for 5 s

± (0.5 % + 0.0005

) R ± (2.0 % + 0.0005 ) R

Low temperature storage

- 65 °C for 24 h

± (0.5 % + 0.0005

) R ± (0.5 % + 0.0005 ) R

High temperature



exposure

1000 h at + 275 °C

± (1.0 % + 0.0005

) R ± (1.0 % + 0.0005 ) R

Bias humidity

+ 85 °C, 85 % RH, 10 % bias, 1000 h

± (0.5 % + 0.0005

) R ± (0.5 % + 0.0005 ) R

Mechanical shock

100 g’s for 6 ms, 5 pulses

± (0.5 % + 0.0005

) R ± (0.5 % + 0.0005 ) R

Vibration

Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h ± (0.5 % + 0.0005

) R ± (0.5 % + 0.0005 ) R

Load life

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

± (1.0 % + 0.0005

) R ± (2.0 % + 0.0005 ) R

Resistance to solder heat

+ 260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence

± (0.5 % + 0.0005

) R ± (0.5 % + 0.0005 ) R

Moisture resistance

MIL-STD-202, method 106, 0 % power, 7a and 7b not

required

± (0.5 % + 0.0005

) R ± (0.5 % + 0.0005 ) R

W

L

T

W1

H

I

a

b

- 65

- 25

25

75

125

175

225

275

Ambient Temperature °C

70

0

20

40

60

80

100

120

PACKAGING

MODEL

REEL

TAPE WIDTH

DIAMETER

PIECES/REEL

CODE

WSR2 and WSR3

24 mm/embossed plastic

330 mm/13"

1500

EA