Rev Date: 2/26/2021

3

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Please confirm technical specifications before you order and/or use.

KAL Series

Aluminum Housed Chassis Mount Resistor

Stackpole Electronics, Inc.

Resistive Product Solutions

Power Derating Curve:

Note: This curve assumes the part is mounted on a properly sized heat sink.

Recommended Solder Profile

This information is intended as a reference for solder profiles for Stackpole resistive components. These profiles should

be compatible with most soldering processes. These are only recommendations. Actual numbers will depend on board

density, geometry, packages used, etc., especially those cells labeled with “*”.

100% Matte Tin / RoHS Compliant Terminations

Soldering iron recommended temperatures: 330°C to 350°C with minimum duration.

Maximum number of reflow cycles: 3.

Wave Soldering

Description

Maximum

Recommended

Minimum

Preheat Time

80 seconds

70 seconds

60 seconds

Temperature Diff.

140°C

120°C

100°C

Solder Temp.

260°C

250°C

240°C

Dwell Time at Max.

10 seconds

5 seconds

*

Ramp DN (°C/sec)

N/A

N/A

N/A

Temperature Diff. = Defference between final preheat stage and soldering stage.

Type

Recommended Heat Sink Parameters

KAL10

130 sq inch surface area, 0.040" thick

KAL25

166 sq inch surface area, 0.040" thick

KAL50

286 sq inch surface area, 0.060" thick

KAL100

KAL250

295 sq inch surface area, 0.125" thick