MF-R050

Bourns

-40℃~+85℃ 1.17Ω 1A 40A 410mΩ 4s 5.1mm 500mA 60V 7.9mm 750mW 插件,P=5.1mm Resettable Fuses ROHS

Extended

Datasheetbourns/MF-R050

Category: Resettable Fuses
Package: 插件,P=5.1mm
Pins: 2

Overview

The MF-R050 is a resettable Fuse made by Bourns in a 插件,P=5.1mm package with 2 pins. -40℃~+85℃ 1.17Ω 1A 40A 410mΩ 4s 5.1mm 500mA 60V 7.9mm 750mW 插件,P=5.1mm Resettable Fuses ROHS.

PCBKit's library has its KiCad symbol (Device:Polyfuse, from KiCad's library) and its footprint (Fuses:FUSR_BOURNS_MF-R_STYLE1-D7.9MM, from CERN's library), ready for a KiCad board. 4,396 are in stock at JLCPCB (part C208476). 26 open-source boards in 20 repositories on GitHub use it.

Symbol

Device:PolyfuseFrom KiCad's library

Footprint

Fuses:FUSR_BOURNS_MF-R_STYLE1-D7.9MMFrom CERN's library

Parameters

Current - Max: 40A
Hold Current: 500mA
Length: 7.9mm
Operating Temperature: -40℃~+85℃
Pitch: 5.1mm
Power Dissipation: 750mW
Resistance - Initial (Ri) (Min): 410mΩ
Resistance - Post Trip (R1) (Max): 1.17Ω
Time to Trip(Max): 4s
Trip Current: 1A
Voltage - Max: 60V

Order codes

MF-R050LCSC C208476

Pinout

The pins of the MF-R050
Pin	Name	Type
1	—	Passive
2	—	Passive

Open-source boards using it

All 26

2 layers85 × 155 mm
Esp32-fan controller
merlindorin/esp32-fan-controller
A small KiCad board to keep my home server cabinet cool. 4 PWM fans, 4 temperature probes, one ESP32.
38 parts8MIT
2 layers68.6 × 88.4 mm
Shield coil winder
jonathan-iap/CoilWinder
A reprap coil winder machine based on arduino language
34 parts4GPL-3.0
2 layers91 × 44 mm
Eurorack Power Consumption Tester v1.0
StudioKAT/EurorackPowerConsumptionTester
Eurorack Power Consumption Tester
25 parts4
2 layers72.1 × 41.8 mm
Power injector rev c
grodansparadis/can4vscp-power-injector
Power injector module for CAN4VSCP
28 parts2
2 layers100 × 100 mm
Tesseract
IoTCloudStudio/HW_Develop

89 parts2
2 layers120.4 × 100.1 mm
DP1600i
Hocus-Pocus/Speeduino-DP1600i-

126 parts1
2 layers30 × 58.5 mm
Loragate tht
andrewgho/loragate
ESP32 + LoRa radio powered reed switch door sensor
10 parts
2 layers100 × 100 mm
Fishy8
EmanuelKrabNL/Fishy8
PCB with vintage camera looking footage. A microphone and a fisheye lens.
15 partsMIT

Show this part on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/parts/bourns/MF-R050" title="MF-R050 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/parts/bourns/MF-R050.jpg" alt="MF-R050" width="1200" height="900">

A picture that opens the part, for a README

[![MF-R050](https://pcbkit.io/embed/parts/bourns/MF-R050.jpg?size=s)](https://pcbkit.io/parts/bourns/MF-R050)

Questions

Is there a KiCad symbol and footprint for the MF-R050?

Yes. The symbol is Device:Polyfuse and the footprint Fuses:FUSR_BOURNS_MF-R_STYLE1-D7.9MM, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the MF-R050?

插件,P=5.1mm, with 2 pins. Its footprint is drawn on this page.

Where is the MF-R050 datasheet?

Bourns publishes it: the Datasheet link on this page opens it.

Where can I order the MF-R050?

JLCPCB lists it as part C208476, with 4,396 in stock; the sellers' links on this page open their listings.

What can replace the MF-R050?

Parts like it in the library: the MF-R090 by Bourns. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the MF-R050?

26 boards in 20 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

MF-R090
插件,P=5.1mm-40℃~+85℃ 1.8A 140mΩ 1W 40A 470mΩ 60V 7.2s 900mA 插件,P=5.1mm Resettable Fuses ROHSBournsResettable Fuses