SPU Molded Style

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Vishay Dale

Revision: 27-Feb-12

2

Document Number: 30220

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

DIMENSIONS in inches [millimeters]

MATERIAL SPECIFICATIONS

Element: Nickel-chromium alloy or copper-manganese

alloy, depending on resistance value

Molding

Material:

SPU050/051

thermo-set

epoxy

SPU052/053 thermo-set silicone

Standard Terminals: SPU050/051: 100 % Sn or 60/40

SPU052/053: 100 % Sn or 60/40 Sn/Pb coated copper

Part Marking: DALE, model, wattage, value, tolerance,

date code

AMBIENT TEMPERATURE DERATING

Derating is required for ambient temperature above 25 °C per the following graph

DERATING

GLOBAL

MODEL

DIMENSIONS in inches [millimeters]

AB

C

D

SPU050

0.660 ± 0.010

[16.76 ± 0.25]

0.312 ± 0.010

[7.92 ± 0.25]

0.200 ± 0.015

[5.08 ± 0.38]

1.000 + 0.25 - 0.125

[25.40 + 6.35 - 3.17]

SPU051

0.790 ± 0.010

[20.06 ± 0.25]

0.375 ± 0.010

[9.52 ± 0.25]

0.200 ± 0.015

[5.08 ± 0.38]

1.000 + 0.25 - 0.125

[25.40 + 6.35 - 3.17]

SPU052

1.000 ± 0.010

[25.40 ± 0.25]

0.375 ± 0.010

[9.52 ± 0.25]

0.125 ± 0.015

[3.17 ± 0.38]

1.000 minimum

[25.40 minimum]

SPU053

1.870 ± 0.010

[47.50 ± 0.25]

0.437 ± 0.010

[11.10 ± 0.25]

0.125 ± 0.015

[3.17 ± 0.38]

1.000 minimum

[25.40 minimum]

D

A

18 AWG

0.040 ± 0.002

[1.02 ± 0.051]

B

C

120

100

80

60

40

20

0

- 55 - 50

0

50

100

150

200

250

275

AMBIENT TEMPERATURE IN

SPU052 and 053

SPU050 and 051

25

175