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95

WSL....E

Vishay

For Technical Questions in Europe contact: ww1resistors@vishay.com

For Technical Questions in Americas/Asia contact: ww2bresistors@vishay.com

Document Number 20033

Revision 11-Oct-02

Power Metal Strip Flip Chip (Extended Range)

Patents Pending

DIMENSIONS

PERFORMANCE

TEST

CONDITIONS OF TEST

TEST LIMITS

Thermal Shock

-55

°C to +150°C, 100 cycles, 15 minutes at each extreme

±(0.20% +0.01Ω)

Short Time Overload

5 x rated power for 5 seconds

±(0.20% +0.01Ω)

Low Temperature Storage

-65

°C for 24 hours

±(0.20% +0.01Ω)

High Temperature Exposure

1000 hours @ +150

°C

±(0.50% +0.01Ω)

Moisture Resistance

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

±(0.50% +0.01Ω)

Load Life

1000 hours @ rated power, +70

°C, 1.5 hours “ON”, 0.5 hours “OFF”

±(0.50% +0.01Ω)

Vibration

MIL-STD-202, Method 204D

±(0.10% +0.01Ω)

Mechanical Shock

100 G’s for 6 milliseconds, 5 pulses

±(0.10% +0.01Ω)

Resistance to Soldering Heat

+260

°C solder, 10-12 seconds dwell, 25mm/second emergence

±(0.50% +0.01Ω)

SIZE

DIMENSIONS in inches [millimeters]

INCH

L

W

Dd

1506

0.15

± 0.005 0.062 ± 0.003

0.025

0.012

± 0.003 0.059 ± 0.003

[3.81

±0.13]

[1.57

±0.08]

[0.64]

[0.30

±0.08]

[1.50

±0.08]

2010

0.200

±0.005 0.100 ±0.003

0.025

0.020

±0.003 0.097 ±0.003

[5.08

±0.13]

[2.54

±0.08]

[0.64]

[0.51

±0.08]

[2.46

±0.08]

2512

0.250

±0.005 0.126 ±0.003

0.025

0.024

±0.003 0.123 ±0.003

[6.35

±0.13]

[3.20

±0.08]

[0.64]

[0.61

±0.08]

[3.12

±0.08]

SIZE

SOLDER PAD RECOMMENDATIONS in inches [millimeters]

INCH

a

b

l

1506

0.015 [0.38]

0.062 [1.57]

0.118 [3.00]

2010

0.023 [0.58]

0.100 [2.54]

0.153 [3.89]

2512

0.027 [0.69]

0.126 [3.20]

0.196 [4.98]

D

a

b

d

T

L

Time in Microseconds

10

1

WSL2010E

WSL1506E

Pulse Energy Plot:

This represents the energy in each of 50 pulses, with

a 1 second rest between pulses, that it takes to shift

the WSL....E resistance

± (0.50% + 0.01Ω).

- 55

-25

0

25

50

75

100

125

150 175

Ambient Temperature in

Temperature Rise

0

0.25

0.50

0.75

1.0

Power in W

WSL1506E

WSL2010E

WSL2512E

150

125

100

75

50

25

0

Derating

120

100

80

60

40

20

0

70

Pulse Energy

W

I