Circuit Protection Selection Guide
Consult this guide to learn about circuit protection considerations and the solutions Littelfuse offers. Tables help match products with applications.
Surface mount fuses solder onto printed circuit boards and integrated circuits. The fuses then protect PCB and IC components such as semiconductors from shorts and overcurrent events. Batteries, handheld electronics, LEDs, networking equipment, ac–dc power adapters, and servers rely on surface mount fuses. To meet those needs, Littelfuse produces AECQ, FLAT PAK, NANO 2®, PICO®, and thin film chip fuses. Consult our Circuit Protection Products Selection Guide to determine the best solution for your application.
Part Number | Actions | Voltage Rating (V) | Nominal Melting I2T (A2sec) | Resistance (Ω) | Opening | Body | Maximum AC Voltage (V) | MSL | Ampere Rating (A) | Vibration | Marking Code | Interrupting Rating | Nominal Voltage Drop (mV) |
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Part Number | Actions | Voltage Rating (V) | Nominal Melting I2T (A2sec) | Resistance (Ω) | Opening | Body | Maximum AC Voltage (V) | MSL | Ampere Rating (A) | Vibration | Marking Code | Interrupting Rating
| Nominal Voltage Drop (mV) | |
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Very Fast-Acting (FF) | ||||||||||||||
Consult this guide to learn about circuit protection considerations and the solutions Littelfuse offers. Tables help match products with applications.
See our comprehensive portfolio of power semiconductor & integrated circuit technologies in industry standard & innovative packages.
A matrix at the center of this guide shows users how to protect and boost the operations of datacenter electronics by deploying Littelfuse solutions.