RKEF500-1 Littelfuse RKEF500-1 is a 5A polymeric PTC resettable fuse with a maximum voltage rating of 60V in a radial through-hole package.
Mfr Part #:

RKEF500-1

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse RKEF500-1 is a 5A polymeric PTC resettable fuse with a maximum voltage rating of 60V in a radial through-hole package.
Total Stock: 11 pcs
$ Price Range: $0.60 - $1.23

RKEF500-1 Available from 1 distributor

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11 pcs On Request 1 On Request On Request On Request On Request On Request

RKEF500-1 Specifications Quick View

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

RKEF500-1 Description

Short technical summary and product information.

The RKEF500-1 is a polymeric positive temperature coefficient (PTC) resettable fuse designed for overcurrent protection. It has a hold current of 5 A at 20°C still air and a maximum voltage of 60 V. The device trips in 28 seconds maximum at 5 A. After tripping, the maximum resistance is 50 mΩ.

 

It operates over a temperature range of -40°C to 85°C. The radial disc package features through-hole mounting with a lead spacing of 10.15 mm. The dimensions are 24.10 mm length, 3.00 mm width, and 29.00 mm height.

 

Compliance includes RoHS3, REACH, and MSL level 1 (unlimited). The part is supplied in bulk packaging. Lead time and stock availability should be confirmed with distributors.

RKEF500-1 Quick Information

Product Type: PTC Resettable Fuse
Series: RGEF
Canonical Name: Littelfuse RKEF500-1 Polymeric PTC Resettable Fuse, 5A Hold, 60V, Radial
Subcategory: Polymeric PTC

RKEF500-1 Compliance

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

RKEF500-1 Estimated Pricing

Qty Low High
1+ $1.23 $1.23
10+ $1.14 $1.14
50+ $0.94 $0.94
100+ $0.87 $0.87
250+ $0.78 $0.78
500+ $0.72 $0.72
1,000+ $0.66 $0.66
2,500+ $0.66 $0.66
5,000+ $0.60 $0.60

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

RKEF500-1 Features

  • Polymeric PTC resettable fuse with 5A hold current.
  • Maximum voltage rating of 60V.
  • Fast trip time of 28 seconds maximum.
  • Radial through-hole package with 10.15mm lead spacing.
  • Low post-trip resistance of 50 mΩ.

RKEF500-1 Applications

  • Overcurrent protection in power supplies
  • Used in battery charging circuits
  • Protection for motor control systems
  • Suitable for industrial automation equipment
  • Circuit protection in telecommunications gear

RKEF500-1 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the hold current of the RKEF500-1?

5 A (maximum current the device will pass without interruption in 20°C still air).

What is the maximum voltage rating of the RKEF500-1?

60 V.

What is the time to trip of the RKEF500-1?

28 seconds maximum at 5 A, 20°C still air.

What is the package type of the RKEF500-1?

Radial, Disc with through-hole mounting and 10.15 mm lead spacing.

What is the operating temperature range of the RKEF500-1?

-40°C to 85°C.

What is the resistance after trip for the RKEF500-1?

Maximum 50 mΩ (1 hour post trip at 20°C).

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