Littelfuse 253 Series PICO II Uživatelský manuál stáhnout pdf (Strana 3)

Speciﬁcations are subject to change without notice.

Revised: 02/25/14

Axial Lead & Cartridge Fuses

PICO

ll > Very Fast-Acting > 251/253 Series

Average Time Current Curves

Soldering Parameters

100

0.1

0.01

0.001

.062A

0.05 0.1 110100 1000

.125A

.250A

.375A

.500A

.750A

.630A

1.5A

2.5A

3.5A

10A

12A

15A

TIME IN SECONDS

CURRENT IN AMPERES

1.25A

Recommended Hand Soldering Parameters:

SolderIronTemperature:350°C+/-5°C

Heating Time: 5 seconds max.

Note: These devices are not recommended for IR or

Convection Reﬂow process

Recommended Process Parameters:

Note:

1. Rerating depicted in this curve is in addition to the standard rerating of 25% for

continuous operation.

Temperature Rerating Curve

Wave Parameter

Lead-Free Recommendation

for 251 Series only

Preheat:

(DependsonFluxActivationTemperature)

(TypicalIndustryRecommendation)

Temperature Minimum:

100

°C

Temperature Maximum:

150

°C

Preheat Time: 60-180 seconds

Solder Pot Temperature:

260

°C Maximum

Solder Dwell Time: 2-5 seconds

1 2 3 4

Komentáře k této Příručce

Žádné komentáře

Littelfuse 253 Series PICO II Uživatelský manuál Strana 3

Komentáře k této Příručce

Související produkty a manuály pro Hardware Littelfuse 253 Series PICO II