SF-0402F Series - Fast Acting Surface Mount Fuses

Specifications are subject to change without notice.

Users should verify actual device performance in their specific applications.

The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

REV. 04/21

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Reliability Testing

No.

Test

Requirement

Test Condition

1

Carrying Capacity

No fusing

Rated current, 4 hours

2

Fusing Time

Within 1 minute

200 % of its rated current

3

Interrupting Ability

No mechanical damages

After the fuse is interrupted, rated voltage applied

for 30 seconds again

4

Bending Test

No mechanical damages

Distance between holding points: 90 mm,

Bending: 3 mm,1time, 30 seconds

5

Resistance to Solder Heat

±20 %

260 °C ±5 °C,10 seconds ±1 second

6

Solderability

95 % coverage minimum

235 °C ±5 °C, 2 ±0.5 second

245 °C ±5 °C, 2 ±0.5 second (lead free)

7

Temperature Rise

<75 °

100 % of its rated current, measure of surface

temperature

8

Resistance to Dry Heat

±20 %

105 °C ±5 °C,1000 hours

9

Resistance to Solvent

No evident damage on protective coating

and marking

23 °C ±5 °C of isopropyl alcohol, 90 seconds

10

Residual Resistance

10k ohms or more

Measure DC resistance after fusing

11

Thermal Shock

ΔR < 10 %

-20 °C / +25 °C /+125 °C /+25 °C, 10 cycles