RF1940-000 Littelfuse

RF1940-000 electronic component of Littelfuse
RF1940-000 Littelfuse
RF1940-000 Resettable Fuses - PPTC
RF1940-000  Circuit Protection
Images are for reference only, See Product Specifications

X-On Electronics has gained recognition as a prominent supplier of RF1940-000 Resettable Fuses - PPTC across the USA, India, Europe, Australia, and various other global locations. RF1940-000 Resettable Fuses - PPTC are a product manufactured by Littelfuse. We provide cost-effective solutions for Resettable Fuses - PPTC, ensuring timely deliveries around the world.

Part No.RF1940-000
Manufacturer:Littelfuse
Category:Resettable Fuses - PPTC
Description:Resettable Fuses - PPTC 1 AMP 125V VERY FAST ACTING
Datasheet:RF1940-000 Datasheet (PDF)
Shipping Charges:Click here for details
AI Image
Price (USD)
  
1: USD 1.5469 ea
Line Total: USD 1.55 
Availability : 0
  
QtyUnit Price
1$ 1.5469
10$ 1.2816
20$ 0.8458
55$ 0.799
1000$ 0.7691
  

Availability0
Ship by Mon. 22 Jun to Wed. 24 Jun
MOQ : 1
Multiples : 1
QtyUnit Price
1$ 1.5469
10$ 1.2816
20$ 0.8458
55$ 0.799
1000$ 0.7691

   
Manufacturer
Product Category
Mounting
Manufacturer Series
Kind Of Fuse
Case
Fuse Characteristics
Type Of Fuse
Current Rating
Rated Voltage
LoadingGif
 
Notes:- Show Stocked Products With Similar Attributes.

We are delighted to provide the RF1940-000 from our Resettable Fuses - PPTC category, at competitive rates not only in the United States, Australia, and India, but also across Europe and beyond. A long established and extensive electronic component distribution network has enhanced our global reach and dependability, ensuring cost savings through prompt deliveries worldwide. Client satisfaction is at the heart of our business, where every component counts and every customer matters. Our technical service team is ready to assist you. From product selection to after-sales support, we strive to deliver a seamless and satisfying experience. Are you ready to experience the best in electronic component distribution? Contact X-ON Electronics today and discover why X-On are a preferred choice for the RF1940-000 and other electronic components in the Resettable Fuses - PPTC category and beyond.

ImagePart-Description
Stock Image0216.500MXEP
Littelfuse Cartridge Fuses 250V .5A Fast Acting
Stock : 203
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Stock Image0235.500MXP
500 mA 250 V AC DC Fuse Cartridge, Glass Holder 5mm x 20mm
Stock : 2995
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Stock Image0218.032HXP
Cartridge Fuses 250V .032A Time Lag (Slo-Blo)
Stock : 490
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Stock Image0229003.HXSP
3 A 250 V AC 125 V DC Fuse Cartridge, Glass Requires Holder 2AG, 5mm x 15mm
Stock : 103
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Stock Image01070002Z
Littelfuse Fuse Clips Clip 916 Dia
Stock : 8962
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Stock Image022903.5MXP
Cartridge Fuses 3.5A 250V Tube,4.2x14.1mm RoHS
Stock : 2532
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Stock Image02292.25HXP
2.25 A 250 V AC 125 V DC Fuse Cartridge, Glass Holder 2AG, 5mm x 15mm
Stock : 0
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Stock Image0235.200MXP
Cartridge Fuses 250V .2A Fast Acting
Stock : 1091
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Stock Image0235002.VXP
Cartridge Fuses 250V 5X20mm P 2AMP
Stock : 95
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Stock Image00713200
Pushbutton Switches Plunger Switch 2-Way N.C.
Stock : 0
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
ImagePart-Description
Stock Image0ZCG0075AF2B
Resettable Fuses - PPTC
Stock : 37500
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Stock ImageMINIASMDC075F/24-2
Resettable Fuses - PPTC .75A 24V Mini SMD AEC-Q200
Stock : 2794
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Stock ImageMF-S120
Resettable Fuses - PPTC 1.20A 15V 0.085ohm Hold 1.2A Trip 2.7A
Stock : 0
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Stock Image0ZCD0250FF2C
PTC Resettable Fuse 2.5A(hold) 5A(trip) 16VDC 40A 1.5W 16s 0.025Ohm SMD Solder Pad 2920 T/R
Stock : 0
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Stock Image0ZCG0030FF2C
Resettable Fuses - PPTC
Stock : 17000
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Stock ImageMF-R030
Resettable Fuses - PPTC 60v Max 40Amps Max Hold .30 Trip .60
Stock : 815
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Stock ImageRXEF020-2
Resettable Fuses - PPTC Radial Lead .2A 72V 40A Imax
Stock : 4095
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Stock ImageSMD1210P075TF
PTC Resettable Fuses 1210 RoHS
Stock : 0
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Stock ImageFRX025-60F
PTC Resettable Fuses Through Hole RoHS
Stock : 275
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.
Stock ImageBK16-600-SZ
PTC Resettable Fuses Through Hole,P=5.1mm RoHS
Stock : 0
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

The RF1940-000 is a single-pole, resettable fuse designed and manufactured by Littelfuse. It is rated for 1 Amp at 125V and is a very fast-acting fuse. The PPTC (Positive Temperature Coefficient) element inside the fuse will react to surges and overcurrents, causing a rapid rise in resistance, effectively cutting off the flow of electricity until the fault is removed. After the fault is removed and the temperature has cooled, the PPTC element will self-reset, restoring the flow of the electricity. This resettable fuse is ideal for use in residential, office, and hospital lighting circuits, small appliances, and power tools.

Tariff Desc

8541.50.00 - Other semiconductor devices
42 No Other discrete (not IC) semiconductor devices
(PTC resettable fuses used to protect against overcurrent. Also known as a multifuse or polyfuse or polyswitch)

8536.10 FUSES AND FUSE HOLDERS, subminiature, plug in or pigtail type known as picofuses or microfuses, dimensions NOT exceeding 6mm x 18mm TC 8530773
Cole Hersee
HAMLIN
Hamlin Littelfuse
Hamlin / Littelfuse
Hamlin Inc
Hartland Controls / Littelfuse
LF
LF7
Littelfuse Teccor Sidactor Product
Littelfuse Wickmann Brand
Littelfuse / US Sensor
Littelfuse Commercial Vehicle Products
Littelfuse Inc
Littelfuse Inc.
Littelfuse Industrial Products
LITTELFUSE SEMITRON
LITTELFUSE WICKMANN
LITTELFUSE, INC.
Littelfuse/CVP
Little Fuse / Wickmann
Littlefuse
SSAC
SSAC Relays
TE Connectivity / Circuit Protection
Wickmann
WICKMANN USA
FF600R12KE4PBOSA1 IGBT Modules by Infineon | Buy at XON image

Jan 12, 2026
FF600R12KE4PBOSA1 IGBT Modules by Infineon provide high current capability, low switching losses, and excellent thermal performance. Ideal for industrial motor drives, inverters, and high-power converters. Available now at XON Electronics.
2051-09-SM-RPLF GDTs by Bourns – Surge Protection image

May 23, 2025
2051-09-SM-RPLF GDTs by Bourns provide high-performance surge protection with low capacitance and SMT design, ideal for telecom, industrial, and data line applications.
G4A-1A-PE 12VDC Relays by Omron – Buy Online at XON image

Mar 25, 2026
The G4A-1A-PE 12VDC General Purpose Relays by Omron deliver reliable switching performance. As part of Electromechanical, Relays, General Purpose Relays, they are ideal for industrial and electronic control applications.
CD4060BE Counter ICs by HGSEMI | Buy Online at XON image

Jan 2, 2026
CD4060BE by HGSEMI is a CMOS counter IC with an integrated oscillator and 14-stage binary counter. Ideal for timers, frequency dividers, and clock generation circuits with low power consumption and full datasheet support.

Looking for help? Visit our FAQ's Section to answer to all your questions

 

X-ON Worldwide Electronics

Welcome To X-ON Electronics
For more than 30 years, we have championed innovation and helped shape the electronic components supply industry. Our management philosophy aligns with our global reach and unwavering commitment to quality. Built on a strong commercial foundation, we continue to drive innovation across everything we do. If you need a trustworthy reliable partner in electronic component supply – look no further.
 

Copyright ©2026  X-ON Electronics Services. All rights reserved.
Please ensure you have read and understood our Terms & Conditions before purchasing. All prices exclude GST.

Image for all the cards that are acceptedImage for all the cards that are acceptedImage for all the cards that are acceptedImage for all the cards that are acceptedImage for all the cards that are acceptedAS9120 Certified