Type C2F

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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. C2F Feb2025

Environmental Specifications

High temperature storage

MIL-STD-202 Method 108

Temperature cycling

JESD22 Method JA-104,Test Condition B

Biased humidity

MIL-STD-202 Method 103,85C/85% RH

with 10% operating power for 1000 hrs

Operational life

MIL-STD-202 Method 108, Test Condition

D

Resistance to solvents

MIL-STD-202 Method 215

Mechanical shock

MIL-STD-202 Method 213,Test Condition C

Vibration

MIL-STD-202 Method 204

Resistance to soldering

heat

MIL-STD-202 Method 210,Test condition B

Thermal shock

MIL-STD-202 Method 107

Solderability

J-STD-002

Board flex(SMD)

AEC-Q200-005

Terminal strength

AEC-Q200-006

Electrical characterization

3 temperature electrical

Soldering Parameters

Shock Resistance

MIL-STD-202G, Method 213B, Test Condition

1

(100 G's peak for 6 milliseconds; Sawtooth

waveform)

Vibration Resistance

MIL-STD-202G, Method 201A (10-55 Hz,0.06

inch, total excursion).

Salt Spray Resistance

MIL-STD-202G, Method 101E, Test Condition

B (48 hrs).

Insulation Resistance

MIL-STD-202G, Method 302, Test Condition

A (After Opening) 10,000 ohms minimum.

Solderability

MIL-STD-202G, Method 208H

Resistance to solder

Heat

MIL-STD-202G, Method 210F, Test Condition

C. Top Side(260℃,20 sec)

MIL-STD-202G, Method 210F, Test Condition

D. Bottom Side(260℃,10 sec)

Thermal Shock

MIL-STD-202G, Method 107G, Test Condition

B (-65℃ to +125℃).

Operating

Temperature

-55℃ to +125℃

Moisture Sensitivity

Level

1 (According to IPC J-Std-020)

IR Reflow Profile (IPC/JEDEC J-STD-020D)

Preheat & Soak

Temperature min (Tsmin)

Temperature max (Tsmax)

Time (Tsmin to Tsmax) (ts)

150℃

200℃

60-120 seconds

Average ramp-up rate (Tsmax to Tp)

3℃/second max.

Liquidous temperature (TL)

Time at liquidous (tL)

217℃

60-150 seconds

Peak temperature (Tp)

260℃ max

Time (tp) within 5℃ of the

specified classification temperture (Tc)

30 seconds

Average ramp-down rate (Tp to Tsmax)

6℃/second max.

Time 25℃ to peak temperature

8 minutes max.

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