WSLP

www.vishay.com

Vishay Dale

Upgrade for Wider Resistance Range to WFM

Revision: 09-Aug-2022

3

Document Number: 30122

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

DERATING

PULSE CAPABILITY

www.vishay.com/resistors/power-metal-strip-calculator

WELDED CONSTRUCTION

Notes

• Embossed carrier tape per EIA-481

70

120

100

80

60

40

20

0

- 65 - 50

- 25

0

25

50

75

100

125

150

170

Ambient Temperature in °C

IILLLL

US

TR

AT

AA

IVE

PU

RRPP

OS

EESS

O

ON

LYY

LLLL

click to get started

PERFORMANCE

TEST

CONDITIONS OF TEST

TEST LIMITS

Thermal shock

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

± (0.5 % + 0.0005

Ω)

)Short time overload

Refer to link for short time overload performance and pulse capability;

www.vishay.com/resistors/power-metal-strip-calculator/

± (0.5 % + 0.0005

Ω)

Low temperature operation

-65 °C for 24 h

± (0.5 % + 0.0005

Ω)

High temperature exposure

1000 h at +170 °C

± (1.0 % + 0.0005

Ω)

Bias humidity

+85 °C, 85 % RH, 10 % bias, 1000 h

± (0.5 % + 0.0005

Ω)

Mechanical shock

100 g’s for 6 ms, 5 pulses

± (0.5 % + 0.0005

Ω)

Vibration

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

± (0.5 % + 0.0005

Ω)

Load life

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

± (1.0 % + 0.0005

Ω)

Resistance to solder heat

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

± (0.5 % + 0.0005

Ω)

Moisture resistance

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

± (0.5 % + 0.0005

Ω)

MODEL

REEL

TAPE WIDTH

DIAMETER

PIECES / REEL

CODE

WSLP0603

8 mm / punched paper

178 mm / 7"

5000

EA

WSLP0805

8 mm / punched paper

178 mm / 7"

5000

EA

WSLP1206

8 mm / embossed plastic

178 mm / 7"

4000

EA

WSLP2010

12 mm / embossed plastic

178 mm / 7"

4000

EA

WSLP2512

12 mm / embossed plastic

178 mm / 7"

2000

EA

2

1

3

4

Resistive element: solid metal nickel-chrome

or manganese-copper alloy resistive element

with low TCR (< 20 ppm/°C)

1

4

Silicone coating with ink print

3

Terminal / element weld

2

Terminal: solid copper, 100 % Sn (200 μ" min.)

with 100 % Ni (40 μ" min.) under layer finish