What are the key electrical ratings?

It features a 0.50 A hold current, 1.0 A trip current, and a maximum operating voltage of 6 V.

What should engineers review before using this part?

Ensure the reflow soldering profile is followed, as this component is not designed for wave or hand soldering.

What are the sourcing risks?

The part is widely available with high stock levels, presenting low sourcing risk.

What is the pinout of MF-PSMF050X-2?

Use the MF-PSMF050X-2 datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about MF-PSMF050X-2 pinout to locate pins, power rails, and interface signals before layout.

MF-PSMF050X-2 Datasheet, Specs, Alternatives & ECAD | BOURNS

AI summary

The MF-PSMF050X-2 is a reliable 0805-sized PTC resettable fuse from Bourns, ideal for compact consumer electronics protection.

Best for

USB 2.0/3.0 protection
Mobile device battery protection

Avoid if

High-voltage applications exceeding 6 V

Check before use

Thermal derating at temperatures above 23 °C

Key specifications

Hold Current: 0.50 A
Max Voltage: 6 V
Package: 0805

Compliance & Environment

RoHS: ROHS3 Compliant
REACH: nan
MSL: nan
ECCN: EAR99
HTSUS: 8533290000.0

Application

Consumer ElectronicsConnectivity

Datasheet

HITES00275-1.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for MF-PSMF050X-2: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol

Schematic symbol for your EDA tool

Get Files

PCB Footprint

Land pattern for PCB layout

Get Files

3D Model

STEP file for mechanical design

Get Files

KiCad Library

Verified KiCad 8 symbol, footprint, and 3D model

Generate library

Where to Buy

Real-time and catalog pricing from verified distributors

Alternative components

Part	Details	Match
SMD0805-050TECHFUSE	A pin-compatible alternative from TECHFUSE with matching 0.5A hold current and 6V rating in an 0805 package.	Needs validation

SMD0805B050TFYageo	A pin-compatible PTC fuse from Yageo with matching hold current, voltage, and 0805 package.	Needs validation
SMD0805-050-16VTECHFUSE	An upgrade path from TECHFUSE with a higher 16V rating, while matching the 0.5A hold current and 0805 package.	Needs validation
SMD0805-100TECHFUSE	A functional alternative with the same package and voltage, but a higher 1.0A hold current. Requires engineering review.	Needs validation

Design and risk insights

Questions & answers

It is a surface-mount PTC resettable fuse in an 0805 package, designed to protect circuits from overcurrent conditions.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Where to Buy

Alternative components

Design and risk insights

Questions & answers

What is the MF-PSMF050X-2?+×

What are the key electrical ratings?+×

What should engineers review before using this part?+×

What are the sourcing risks?+×

What is the pinout of MF-PSMF050X-2?+×