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HomeProductsCircuit ProtectionPTC Resettable FusesRKEF050
RKEF050 Image
Image may be representation.
See specifications for product details.

RKEF050 - Littelfuse Inc.

Manufacturer Part Number
RKEF050
Manufacturer
Littelfuse
Allelco Part Number
32D-RKEF050
ECAD Model
Parts Description
PTC RESET FUSE 60V 500MA RADIAL
Detailed Description
Package
Radial, Disc
Data sheet
PolySwitch, Radial-leaded Catalog.pdf
RKEF Series Datasheet.pdf
RKEF Series Datasheet.pdf
RKEF050 Spec.pdf
RoHs Status
ROHS3 Compliant
In stock: 226270

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Quantity

Specifications

RKEF050 Tech Specifications
Littelfuse Inc. - RKEF050 technical specifications, attributes, parameters and parts with similar specifications to Littelfuse Inc. - RKEF050

Product Attribute Attribute Value  
Manufacturer Littelfuse  
Voltage - Max 60V  
Type Polymeric  
Time to Trip 800 ms  
Thickness (Max) -  
Size / Dimension 0.280" L x 0.140" W (7.10mm x 3.56mm)  
Series PolySwitch®, RKEF  
Resistance - Post Trip (R1) (Max) 900 mOhms  
Resistance - Initial (Ri) (Min) 320 mOhms  
Ratings -  
Product Attribute Attribute Value  
Package / Case Radial, Disc  
Package Bag  
Operating Temperature -40°C ~ 85°C  
Mounting Type Through Hole  
Lead Spacing 0.199" (5.05mm)  
Height - Seated (Max) 0.450" (11.43mm)  
Current - Trip (It) 1 A  
Current - Max 40 A  
Current - Hold (Ih) (Max) 500 mA  
Approval Agency CSA, TUV, UL  

Parts with Similar Specifications

The three parts on the right have similar specifications to Littelfuse Inc. RKEF050

Product Attribute RKEF050 RKEF065 RKEF090 RKEF300
Part Number RKEF050 RKEF065 RKEF090 RKEF300
Manufacturer Littelfuse Inc. Littelfuse Inc. Littelfuse Inc. Littelfuse Inc.
Resistance - Post Trip (R1) (Max) 900 mOhms 720 mOhms 520 mOhms 80 mOhms
Voltage - Max 60V 60V 60V 60V
Height - Seated (Max) 0.450" (11.43mm) 0.480" (12.20mm) 0.550" (13.97mm) 0.835' (21.20mm)
Time to Trip 800 ms 1 s 2 s 19.8 s
Ratings - - - -
Resistance - Initial (Ri) (Min) 320 mOhms 250 mOhms 190 mOhms 30 mOhms
Approval Agency CSA, TUV, UL CSA, TUV, UL CSA, TUV, UL CSA, TUV, UL
Package / Case Radial, Disc Radial, Disc Radial, Disc Radial, Disc
Series PolySwitch®, RKEF PolySwitch®, RKEF PolySwitch®, RKEF PolySwitch®, RKEF
Current - Max 40 A 40 A 40 A 40 A
Type Polymeric Polymeric Polymeric Polymeric
Mounting Type Through Hole Through Hole Through Hole Through Hole
Lead Spacing 0.199" (5.05mm) 0.199" (5.05mm) 0.200" (5.08mm) 0.199' (5.05mm)
Thickness (Max) - - - -
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Current - Hold (Ih) (Max) 500 mA 650 mA 900 mA 3 A
Current - Trip (It) 1 A 1.3 A 1.8 A 6 A
Size / Dimension 0.280" L x 0.140" W (7.10mm x 3.56mm) 0.280" L x 0.140" W (7.10mm x 3.56mm) 0.310" L x 0.140" W (7.87mm x 3.56mm) 0.650' L x 0.118' W (16.50mm x 3.00mm)
Package Bag Bag Bag Bag

RKEF050 Datasheet PDF

Download RKEF050 pdf datasheets and Littelfuse Inc. documentation for RKEF050 - Littelfuse Inc..

Datasheets
PolySwitch, Radial-leaded Catalog.pdf RKEF Series Datasheet.pdf RKEF050 Spec.pdf
PCN Packaging
Mult Dev Shipping Chgs 9/Jun/2020.pdf
HTML Datasheet
RKEF Series Datasheet.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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RKEF050 Image

RKEF050

Littelfuse Inc.
32D-RKEF050

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