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RXEF185 PTC resettable fuse from Littelfuse with 1.85A hold current and 72V max voltage. Radial through-hole package.
Mfr Part #:

RXEF185

Available from 2 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
PTC resettable fuse from Littelfuse with 1.85A hold current and 72V max voltage. Radial through-hole package.
Total Stock: 229 pcs
$ Price Range: $0.28 - $0.61

RXEF185 Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
166 pcs
166 pcs On Request 1 On Request On Request 2106+ On Request On Request
Non-Authorised Inventory information
63 pcs
63 pcs On Request 1 On Request On Request On Request On Request On Request

RXEF185 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Height
Lead Spacing
Mounting Type
Operating Temperature
Resistance
Tape & Reel
Technology
Time to Trip
Type
Voltage

RXEF185 Description

Short technical summary and product information.

The Littelfuse RXEF185 is a polymeric PTC resettable fuse designed for overcurrent protection in electronic circuits. It features a hold current of 1.85 A and a maximum voltage rating of 72 V. The time to trip is 12.6 seconds, and the initial resistance is 190 mΩ.

 

This component uses polymeric PTC technology, which allows it to automatically reset after a fault condition is cleared. It is housed in a radial, disc package with through-hole mounting. Key mechanical specifications include a lead spacing of 5.05 mm, a diameter of 0.689 inches (17.50 mm), a thickness of 0.118 inches (3.00 mm), and a seated height of 22.40 mm.

 

The RXEF185 operates over a temperature range of -40°C to 85°C, making it suitable for a variety of environments. It is commonly used in power supplies, battery chargers, and other low-voltage applications requiring resettable overcurrent protection. The part is listed as RoHS3 compliant and REACH unaffected, though these compliance claims are unverified.

RXEF185 Quick Information

Product Type: PTC Resettable Fuse
Canonical Name: Littelfuse RXEF185 PTC Resettable Fuse
Subcategory: Polymeric PTC

RXEF185 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

RXEF185 Estimated Pricing

Qty Low High
1+ $0.61 $0.61
10+ $0.56 $0.56
50+ $0.47 $0.47
100+ $0.43 $0.43
250+ $0.39 $0.39
500+ $0.36 $0.36
1,000+ $0.33 $0.33
5,000+ $0.28 $0.28

Estimated market price range - modelled values for guidance only, not live distributor offers.

RXEF185 Features

  • 1.85A hold current rating.
  • 72V maximum voltage rating.
  • Polymeric PTC technology.
  • Radial through-hole package.
  • Operating temperature -40°C to 85°C.

RXEF185 Applications

  • Overcurrent protection for power supplies.
  • Used in battery charger circuits.
  • Protects computer peripheral ports.
  • Suitable for power management systems.

RXEF185 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the hold current of the RXEF185?

1.85 A.

What is the maximum voltage rating?

72 V.

What is the time to trip?

12.6 seconds.

What is the package type?

Radial, Disc.

What technology is used?

Polymeric PTC.

What is the mounting type?

Through Hole.

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