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Same model may have multiple batches, images only for reference.
RKEF400 Real Image
Same model may have multiple batches, images only for reference.

RKEF400

Part No RKEF400
Manufacturer Littelfuse Inc.
Catalog PTC Resettable Fuses
Description POLYSWITCH PTC RESET 4.0A T/H
Datasheet
RKEF400 Datasheet
Sample
Rohs State rohs
ECAD Module
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Products specifications Report Issue?

Categories Circuit Protection
Manufacturer Littelfuse Inc.
Packaging Bulk
Status Active
Type Polymeric
Voltage - Max 60V
Current - Max 40A
Current - Hold (Ih) (Max) 4A
Current - Trip (It) 8A
Time to Trip 24s
Resistance - Initial (Ri) (Min) 14 mOhm
Resistance - Post Trip (R1) (Max) 60 mOhm
Temperature Range - Operating -40°C to 85°C
Mounting Through Hole
Dimension 0.827" L x 0.118" W (21.00mm x 3.00mm)
Height - Seated (Max) 0.980" (24.90mm)
Lead Spacing 0.400" (10.15mm)
Approvals CSA, TUV, UL
Win Source Part Number 210779-RKEF400
Popularity Medium
Supply and Demand Status Limited
Ultra Librarian 3D Model Ultra Librarian RKEF400 CAD Model

Description

The 210779-RKEF400 is a polymeric type circuit protection component that is designed to protect electrical equipment from overcurrent and short circuit events from Littelfuse Inc.. It has a maximum voltage rating of 60V and a maximum current rating of 40A.

  • Maximum Voltage Rating: 60V
  • Maximum Current Rating: 40A
  • Mounting Style: Through-Hole
  • Time to Trip: 24s
  • Current Hold: 4A
  • Current Trip: 8A
  • Approvals: CSA, TUV, and UL
  • Resistance (Initial): 14 mOhm
  • Resistance (Post-Trip): 60 mOhm
  • Temperature Range: -40°C to 85°C
  • Height: 0.980" (24.90mm)

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Pricing & Ordering

Quantity Unit Price Ext. Price
65+ $0.8237 $53.5405
150+ $0.6758 $101.3700
230+ $0.6547 $150.5810
320+ $0.6336 $202.7520
410+ $0.6125 $251.1250
550+ $0.5491 $302.0050
* Prices exclude shipping and taxes. Shipping costs are calculated at checkout.
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Availability: 1,665 pieces
MOQ: 65 pcs
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