EN
  • EN
  • DE
loading
Mfr. Part No. Qty. Price

No items in the cart

View Cart
Same model may have multiple batches, images only for reference.
RXEF185-2 Real Image
Same model may have multiple batches, images only for reference.

RXEF185-2

Part No RXEF185-2
Manufacturer Littelfuse Inc.
Catalog PTC Resettable Fuses
Description POLYSWITCH PTC RESET 1.85A
Datasheet
RXEF185-2 Datasheet
Sample
Rohs State rohs
ECAD Module
Need Help

Products specifications Report Issue?

Categories Circuit Protection
Manufacturer Littelfuse Inc.
Packaging Reel - TR
Status Active
Type Polymeric
Voltage - Max 72V
Current - Max 40A
Current - Hold (Ih) (Max) 1.85A
Current - Trip (It) 3.7A
Time to Trip 12.6s
Resistance - Initial (Ri) (Min) 80 mOhm
Resistance - Post Trip (R1) (Max) 190 mOhm
Temperature Range - Operating -40°C to 85°C
Mounting Through Hole
Dimension 0.689" Dia x 0.118" W (17.50mm x 3.00mm)
Height - Seated (Max) 0.882" (22.40mm)
Lead Spacing 0.199" (5.05mm)
Approvals CQC, CSA, TUV, UL
Win Source Part Number 129301-RXEF185-2
Popularity Medium
Supply and Demand Status Limited
Ultra Librarian 3D Model Ultra Librarian RXEF185-2 CAD Model

Description

The Littelfuse Inc. 129301-RXEF185-2 is a polymeric through-hole circuit protection device designed to protect electronic components from overcurrent and overvoltage conditions.

  • Maximum Voltage Rating: 72V
  • Maximum Current Rating: 40A
  • Current Hold: 1.85A
  • Trip Current: 3.7A
  • Time to Trip: 12.6s
  • Resistance - Initial: 80 mOhm
  • Resistance - Post-Trip: 190 mOhm
  • Height: 0.882" (22.40mm)
  • Lead Spacing: 0.199" (5.05mm)
  • Approvals: CQC, CSA, TUV, UL
  • Operating Temperature Range: -40°C to 85°C
  • Suitable for: Circuit protection applications

You May Also Be Interested in

NANOSMD175LR-E TE Connectivity
NANOSMD175LR-E
Littelfuse Inc.
PTC RESET FUSE 6V 1.75A 1206 / PTC Resettable Fuse Ih
Need more? Email Us
0ZCH0020FF2E Bel Fuse Inc.
0ZCH0020FF2E
Bel Fuse Inc.
PTC RESET FUSE 30V 200MA 1210
Need more? Email Us
B59975C0120A070 EPCOS - TDK Electronics
B59975C0120A070
EPCOS (TDK)
PTC RESET FUSE 30V 450MA RADIAL
Lowest to $0.7277
RXE160
RXE160
Littelfuse Inc.
PTC RESET FUSE 60V 1.6A RADIAL
Need more? Email Us
Picture of MINISMDC050F-02
MINISMDC050F-02
Littelfuse Inc.
PTC RESET FUSE 24V 500MA 1812
Lowest to $0.4543
PTS181230V010Eaton - Electronics Division
PTS181230V010
Eaton / Cutler Hammer
PTC RESET FUSE 30V 100MA 1812
Need more? Email Us
PTGL12AS0R8K2B51B0 Real Image
PTGL12AS0R8K2B51B0
Murata Electronics North America
PTC RESET FUSE 30V 867MA RADIAL
Lowest to $1.7042
0805L020/24YR Littelfuse Inc. – Price, Stock & Datasheet
0805L020/24YR
Littelfuse Inc.
Polymeric PTC Resettable Fuse 24V 200 mA Ih Surface Mount 0805 (2012 Metric), Concave
Need more? Email Us
0ZCH0075FF2G Bel Fuse Inc.
0ZCH0075FF2G
Bel Fuse Inc.
PTC RESET FUSE 8V 750MA 1210
Need more? Email Us

Top Sellers

ULN2803ADW Real Image
ULN2803ADW
Texas Instruments
DARLINGTON TRANSISTOR ARRAY | TRANS 8NPN DARL 50V 0.5A 18SO
Lowest to $5.4647
CY7C68013A-128AXC Real Image
CY7C68013A-128AXC
Cypress Semiconductor Corp
IC MCU USB PERIPH HI SPD 128LQFP
Lowest to $18.8657
ULN2803ADWR real image9675
ULN2803ADWR
Texas Instruments
TRANS 8NPN DARL 50V 0.5A 18SO
Lowest to $4.7519
BAS516 Real Image
BAS516
Nexperia USA Inc.
DIODE GEN PURP 100V 250MA SOD523
Lowest to $0.0713
NTA4153NT1G real image4110
NTA4153NT1G
ON Semiconductor
MOSFET N-CH 20V 915MA SOT-416
Lowest to $0.0543
EC2-5NU real image3736
EC2-5NU
Kemet
RELAY GEN PURPOSE DPDT 2A 5V
Lowest to $0.9677
FT4232HL-REEL real image4451
FT4232HL-REEL
FTDI, Future Technology Devices International Ltd
IC USB HS QUAD UART/SYNC 64-LQFP
Lowest to $13.0677
FT230XS-U real image21586
FT230XS-U
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16SSOP
Lowest to $6.6527
BMI088 real image23913
BMI088
Bosch Sensortec
ACCELEROMETER 16LGA / Accelerometer, Gyroscope, 6 Axis Sensor I2C, SPI Output
Lowest to $9.5038
FT232RL-REEL Real Image
FT232RL-REEL
FTDI, Future Technology Devices International Ltd
IC USB FS SERIAL UART 28-SSOP
Lowest to $5.9399
BM04B-GHS-TBT(LF)(SN)(N) label picture
BM04B-GHS-TBT(LF)(SN)(N)
JST Sales America Inc.
CONN HEADER GH TOP 4POS 1.25MM
Lowest to $0.2376
RTL8211FI-CG real image16071
RTL8211FI-CG
Realtek
INTEGRATED 10/100/1000M ETHERNET TRANSCEIVER
Lowest to $2.4354
ICM-42605 real image24295
ICM-42605
TDK InvenSense
IMU ACCEL/GYRO/TEMP I2C/SPI LGA
Lowest to $9.9790
FT230XQ-R real image21397
FT230XQ-R
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16QFN
Lowest to $6.6527
ICM-42688-P Real Image2
ICM-42688-P
TDK InvenSense
MOTION SENSOR / Accelerometer, Gyroscope, 6 Axis Sensor Output
Lowest to $17.3800
Availability: Check Availability & Quote
Notify Me When Available

Shipping Information

Shipped from HK warehouse
Expected Shipping Date Get an estimate

Contact Us

*
*
*

FRAUD PREVENTION REMINDERS

Recently, We have discovered that criminals falsely claimed to be WIN SOURCE to commit fraud. Please note that the only official website & email suffix are win-source.group, win-source.net, winsourcectl.com and winsourceelec.com

More details about fraud prevention
About Us
Customer Service
Solutions
Copyright © 2026 WIN SOURCE. All rights reserved.
For detailed contact information and office addresses in our key locations, including Irvine, Munich, Toronto, Singapore, Seoul, Bangalore, Bologna, Yamanashi, Hong Kong, and Mainland China, please visit our website.
Trust Guard Security Scanned
RFQ RFQ RFQ BOM BOM BOM API API API Sell Sell Sell your Excess