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Raychem Slow-Blow Chip Fuses

Slow Blow Surface-mount FuseRaychem slow-blow chip fuses help provide protection from damage caused by overcurrent events on systems that experience large and frequent current surges as part of their normal operation. The fuses' monolithic, multilayer design provides performance over temperature and cycling to protect in overcurrent conditions that may occur in power supplies, capacitor filter banks, LCDs (Liquid Crystal Display), backlight inverters, electric motors and portable electronics.

These surface-mount devices are available in industry standard 1206 and 0603 chip sizes. As RoHS-compliant, halogen-free devices, Raychem's slow-blow chip fuses help to support the increased environmental regulations placed upon today's components.

Download the Infotainment Application Note Now (pdf 120KB)

Fuse Selection Guide (pdf 416KB)
Download Datasheet (pdf 201KB)
Fuse Fundamentals (pdf 973KB)

Product Series RoHS Compliant 0603SFS
Form Factor (inches) 0603 1206
Primary Section Fuses Fuses
Max Interrupt Voltage 32V
24V, 32V, 63V
Max Rated Current 1A to 5A
1A to 8A
Max Interrupt Current 50A
50A, 60A
Max Operating Temperature 125°C
125°C
Cold DCR (Nominal) 0.013Ω to 0.2Ω
0.009Ω to 0.36Ω
I²t (A²sec) (Nominal) 0.09 to 3.2 A²sec 0.11 to 16.9A²sec

RoHS Compliant RoHS Compliant

Clear Time Characteristics for Slow-Blow Chip Fuses : 1206SFS Series
% of rated current Clear time at 25°C
100% 4 hours min.
200% 1 sec min. | 120 sec max.
300% 0.1 sec min. | 3 sec max.

800% (1.0A – 1.5A)

0.0016 sec min. | 0.05 sec max.

800% (2.0A – 8.0A)

0.002 sec min. | 0.05 sec max.

Clear Time Characteristics for Slow-Blow Chip Fuses : 0603SFS Series
% of rated current Clear time at 25°C
100% 4 hours min.
200% 1 sec min. | 120 sec max.
300% 0.1 sec min. | 3 sec max.
800% (1.0A-1.5A) 0.0005 sec min. | 0.05 sec max.
800% (2.0A-5.0A) 0.001 sec min. | 0.05 sec max.

 

Part Numbering System for Slow-Blow Chip Fuses

 

Agency Recognition for Slow-Blow Chip Fuses
Standard File Number
UL   E197536
Definitions:

Cold DCR (Nominal)
DC resistance of fuse measured at 10% of rated current and 25°C.

I²t (A²sec)² (Nominal)
Melting I²t at 0.001 sec clear time.

 

All information, including illustrations, is believed to be accurate and reliable. Users, however, should independently evaluate the suitability of and test each product selected for their application. Tyco Electronics Corporation makes no warranties as to the accuracy or completeness of the information, and disclaims any liability regarding its use. Tyco Electronics’ only obligations are those in the Tyco Electronics’ Standard Terms and Conditions of Sale for this product, and in no case will Tyco Electronics be liable for any incidental, indirect, or consequential damages arising from the sale, resale, use, or misuse of the product. Specifications are subject to change without notice. In addition, Tyco Electronics reserves the right to make changes to materials or processing that do not affect compliance with any applicable specification without notification to Buyer.