1812L050PRHF 查看數據表（PDF） - Littelfuse, Inc

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1812L050PRHF

POLYFUSE® Resettable PTCs

Littelfuse, Inc 

Average Time Current Curves

POLYFUSE® Resettable PTCs

Surface Mount > 1812L Series

1812L



















Current in Amperes

The average time current curves and Temperature Rerating curve performance is affected

by a number or variables, and these curves provided as guidance only. Customer must

verify the performance in their application.

Soldering Parameters

Condition

Reflow

Peak Temp/ Duration Time

260°C / 10 Sec

Time above liquids (TAL) 220°C

60 Sec ~ 100 Sec

Preheat 120°C~ 180°C

Storage Condition

50 Sec ~ 150 Sec

0°C~35°C, <=70%RH

• Recommended reflow methods: IR, vapor phase oven, hot air

oven, N2 environment for lead–free

• Recommended maximum paste thickness is 0.25mm (0.010 inch)

• Devices can be cleaned using standard industry methods and

solvents.

Note: If reflow temperatures exceed the recommended profile,

devices may not meet the performance requirements.

1812L



















Current in Amperes

Soldering

260

220

Preheating

180

120

Cooling

0

50 to 150

60 to 100

120

Time(s)

©2009 Littelfuse, Inc.

Specifications are subject to change without notice.

Please refer to www.littelfuse.com/series/1812L.html for current information.

41

Revised: December 2, 2009

1812L Series

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