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RKEF375 PTC resettable fuse from Littelfuse with 3.75A hold current and 60V maximum voltage. Radial through-hole package with 5.05mm lead spacing.
Mfr Part #:

RKEF375

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
PTC resettable fuse from Littelfuse with 3.75A hold current and 60V maximum voltage. Radial through-hole package with 5.05mm lead spacing.
Total Stock: 3,750 pcs
$ Price Range: $0.34 - $0.89

RKEF375 Available from 1 distributor

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
3,750 pcs
3750 pcs On Request 1 On Request On Request On Request On Request On Request

RKEF375 Specifications Quick View

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

RKEF375 Description

Short technical summary and product information.

The Littelfuse RKEF375 is a polymeric PTC resettable fuse designed for overcurrent protection. It features a hold current of 3.75A and a maximum voltage rating of 60V. The initial resistance is 60 mΩ, and the time to trip at typical fault conditions is 22 seconds. Operating temperature range is -40°C to 85°C. The device is housed in a radial disc package with through-hole mounting. Lead spacing is 5.05mm, and overall dimensions are 16.5mm length, 3.0mm width, and 25.2mm height. It is compliant with RoHS, REACH, and has MSL Level 1 (unlimited) per available data.

 

Commonly used in power supplies, battery chargers, and other electronic circuits requiring resettable overcurrent protection.

RKEF375 Quick Information

Product Type: PTC Resettable Fuse
Series: RKEF
Canonical Name: Littelfuse RKEF375 PTC Resettable Fuse
Subcategory: Polymeric PTC

RKEF375 Compliance

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

RKEF375 Estimated Pricing

Qty Low High
1+ $0.89 $0.89
10+ $0.75 $0.75
50+ $0.64 $0.64
100+ $0.62 $0.62
250+ $0.56 $0.56
500+ $0.52 $0.52
1,000+ $0.40 $0.40
5,000+ $0.34 $0.34

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

RKEF375 Features

  • Hold current of 3.75 amps.
  • Maximum voltage rating of 60 volts.
  • Initial resistance of 60 milliohms.
  • Time to trip of 22 seconds.
  • Radial through-hole package.

RKEF375 Applications

  • Overcurrent protection in power supplies.
  • Used in battery charger circuits.
  • Protects motors and transformers.
  • Suitable for general electronic circuits.

RKEF375 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the hold current of the RKEF375?

3.75 A.

What is the maximum voltage rating?

60 V.

What is the time to trip?

22 seconds.

What is the package type?

Radial, Disc (through-hole).

What is the operating temperature range?

-40°C to 85°C.

What is the initial resistance?

60 mΩ.

What is the lead spacing?

5.05 mm.

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