Type 3SB

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Bel Fuse Inc.

300 Executive Drive, Suite 300,

West Orange, NJ 07052 USA

+1 201.432.0463

Bel.US.CS@belf.com

belfuse.com/circuit-protection

© 2025 Bel Fuse, Inc.

Rev. 3SB Feb2025

Temperature Derating Curve

Average Time Current Curve

Soldering Parameters

Lead-free Wave Soldering Profile

Wave Soldering Parameter

Average ramp-up rate

200℃ / second

Heating rate during preheat

typical 1 - 2℃ / second

Max 4℃ / second

Final preheat temperature

within 125℃ of soldering

temperature

Peak temperature Tp

260℃

Time within +0℃ / -5℃ of

actual peak temperature

10 seconds

Ramp-down rate

5℃ / second max.

Specifications subject to change without notice