Littelfuse 433 Series Instrukcja Użytkownika Pobierz pdf (Strona 2)

Revision: February 13, 2008

Surface Mount Fuses

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com for the most current information

Thin Film > 1206 Size > Very Fast Acting > 433 Series

433 Series

Average Time Current Curves

TIME IN SECONDS

CURRENT IN AMPERES

0.01

0.1

100

10 10

0.001

2.5A

1.75A

1.5A

1.25A

.8A

.75A

.6A

.5A

.375A

.25A

.200A

.125A

Temperature Rerating Curve

Reﬂow Condition Pb – Free assembly

Pre Heat

- Temperature Min (T

s(min)

) 150°C

- Temperature Max (T

s(max)

) 200°C

- Time (Min to Max) (t

) 60 – 180 secs

Average ramp up rate (Liquidus Temp

) to peak

5°C/second max

S(max)

to T

- Ramp-up Rate 5°C/second max

Reﬂow

- Temperature (T

) (Liquidus) 217°C

- Temperature (t

) 60 – 150 seconds

Peak Temperature (T

) 250

+0/-5

°C

Time within 5°C of actual peak

Temperature (t

)

20 – 40 seconds

Ramp-down Rate 5°C/second max

Time 25°C to peak Temperature (T

) 8 minutes Max.

Do not exceed 260°C

Soldering Parameters - Wave Soldering

1 2 3

Surface Mount Fuses 1
433 Series Fuse 1

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Littelfuse 433 Series Instrukcja Użytkownika Strona 2

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