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.
AHRF550S Real Image
Same model may have multiple batches, images only for reference.

AHRF550S

Part No AHRF550S
Manufacturer Littelfuse Inc.
Catalog PTC Resettable Fuses
Description POLYSWITCH PTC RESET 5.5A HOLD / POLYSWITCH PTC RESET 5.5A HOLD
Datasheet
AHRF550S Datasheet
Sample
Rohs State rohs
ECAD Module
Need Help

Products specifications Report Issue?

Categories Circuit Protection
Manufacturer Littelfuse Inc.
Series PolySwitch, AHRF
Packaging Bulk
Type Polymeric
Voltage - Max 16V
Current - Max 100A
Current - Hold (Ih) (Maximum) 5.5A
Current - Trip (It) 10A
Time to Trip 6s
Resistance - Initial (Ri) (Minimum) 13 mOhm
Resistance - Post Trip (R1) (Maximum) 37 mOhm
Operating Temperature Range -40°C ~ 125°C
Ratings AEC-Q200
Mounting Style Through Hole
Package Radial, Disc
Dimension 0.441" L x 0.118" W (11.20mm x 3.00mm)
Height - Seated (Maximum) 0.740" (18.90mm)
Lead Spacing 0.200" (5.08mm)
Win Source Part Number 768368-AHRF550S
Popularity Medium
Supply and Demand Status Limited
Introduction Date January 01, 2000
ECCN EAR99
Estimated EOL Date Obsolete / End of life
Ultra Librarian 3D Model Ultra Librarian AHRF550S CAD Model

Description

The Littelfuse Inc. PolySwitch AHRF550S is a polymeric type through hole circuit protection component designed to operate in a temperature range of -40°C to 125°C.

  • Package: Radial, disc
  • Lead Spacing: 0.200 inches (5.08mm)
  • AEC-Q200 Rated: Yes
  • Maximum Voltage: 16V
  • Maximum Current: 100A
  • Current Trip (It): 10A
  • Time to Trip: 6 seconds
  • Initial Resistance (Ri): 13 mOhm
  • Post-Trip Resistance (R1): 37 mOhm
  • Length: 0.441 inches (11.20mm)
  • Width: 0.118 inches (3.00mm)
  • Maximum Seated Height: 0.740 inches (18.90mm)
  • Application: Circuit Protection

You May Also Be Interested in

AHRF450 Littelfuse Inc. – Price, Stock & Datasheet
AHRF450
Littelfuse Inc.
PTC RESET FUSE 16V 4.5A RADIAL
Need more? Email Us
Picture of RXEF250K
RXEF250K
Littelfuse Inc.
PTC RESET FUSE 72V 2.5A RADIAL
Need more? Email Us
MF-RHT1300-2 Bourns Inc. – Price, Stock & Datasheet
MF-RHT1300-2
Bourns Inc.
PTC RESET FUSE 16V 13A RADIAL
Need more? Email Us
RXEF160-AP Littelfuse Inc. – Price, Stock & Datasheet
RXEF160-AP
Littelfuse Inc.
PTC RESET FUSE 72V 1.6A RADIAL
Need more? Email Us
0ZCK0010FF2G Bel Fuse Inc. – Price, Stock & Datasheet
0ZCK0010FF2G
Bel Fuse Inc.
PTC RESET FUSE 15V 100MA 0805
Lowest to $0.2529
B59960C0130A070 EPCOS (TDK) – Price, Stock & Datasheet
B59960C0130A070
EPCOS (TDK)
PTC RESET FUSE 80V 250MA RADIAL
Need more? Email Us
60R017XU Littelfuse Inc. – Price, Stock & Datasheet
60R017XU
Littelfuse Inc.
PTC RESET FUSE 60V 170MA RADIAL
Need more? Email Us
MF-RHT1300-2 Bourns Inc. – Price, Stock & Datasheet
MF-RHT1300-2
Bourns Inc.
PTC RESET FUSE 16V 13A RADIAL
Need more? Email Us
0ZCG0110BF2B Bel Fuse Inc. – Price, Stock & Datasheet
0ZCG0110BF2B
Bel Fuse Inc.
PTC RESET FUSE 24V 1.1A 1812
Lowest to $0.2620

Top Sellers

EC2-5NU real image3736
EC2-5NU
Kemet
RELAY GEN PURPOSE DPDT 2A 5V
Lowest to $0.9677
EPM3128ATC100-10N real image
EPM3128ATC100-10N
Altera
IC CPLD 128MC 10NS 100TQFP
Lowest to $3.3015
PE4312C-Z label picture
PE4312C-Z
Peregrine Semiconductor
RF ATTENUATOR 31.5DB 50OHM 20QFN
Lowest to $1.6632
FT234XD-R real image
FT234XD-R
FTDI, Future Technology Devices International Ltd
USB-to-UART 1-CH 512byte FIFO 5V 12-Pin DFN EP T/R / IC USB SERIAL BASIC UART 12DFN
Lowest to $4.2292
FT4232HL-REEL real image4451
FT4232HL-REEL
FTDI, Future Technology Devices International Ltd
IC USB HS QUAD UART/SYNC 64-LQFP
Lowest to $13.7805
FT230XS-U real image21586
FT230XS-U
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16SSOP
Lowest to $5.8211
ICM-42688-P Real Image2
ICM-42688-P
TDK InvenSense
MOTION SENSOR / Accelerometer, Gyroscope, 6 Axis Sensor Output
Lowest to $17.8196
FT230XS-R real image4301
FT230XS-R
FTDI, Future Technology Devices International Ltd
IC USB SERIAL BASIC UART 16SSOP
Lowest to $5.8211
AR8033-AL1A real image2016
AR8033-AL1A
Atheros
Ethernet TXRX Single Chip 1-Port 3.3V 10Mbps/100Mbps/1000Mbps 48-Pin QFN EP Tray
Lowest to $2.6155
FT232RL-REEL Real Image
FT232RL-REEL
FTDI, Future Technology Devices International Ltd
IC USB FS SERIAL UART 28-SSOP
Lowest to $5.7023
CY7C68013A-128AXC Real Image
CY7C68013A-128AXC
Cypress Semiconductor Corp
IC MCU USB PERIPH HI SPD 128LQFP
Lowest to $19.0076
BM06B-GHS-TBT(LF)(SN)(N) Real Image2
BM06B-GHS-TBT(LF)(SN)(N)
JST Sales America Inc.
CONN HEADER SMD 6POS 1.25MM
Lowest to $0.5279
DRV8432DKD Real Image1
DRV8432DKD
Texas Instruments
IC BRIDGE DRIVER PAR 36HSSOP
Lowest to $19.3374
BMI088 real image23913
BMI088
Bosch Sensortec
ACCELEROMETER 16LGA / Accelerometer, Gyroscope, 6 Axis Sensor I2C, SPI Output
Lowest to $15.1412
BAS516 Real Image
BAS516
Nexperia USA Inc.
DIODE GEN PURP 100V 250MA SOD523
Lowest to $0.0357
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