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Littelfuse 23121000029 Miniature Fuse

The Littelfuse 23121000029 is a miniature fuse specifically engineered for semiconductor protection in high-voltage circuits. Its compact 6.3x32mm size makes it ideal for space-constrained applications, while its very quick acting (FF) characteristic ensures rapid response to overcurrent conditions. The fuse is designed for use in pluggable clips or shocksafe holders, simplifying installation and maintenance. With a voltage rating of 500V and a high breaking capacity, this fuse provides reliable circuit protection in various industrial and consumer electronics applications. Consider de-rating at higher ambient temperatures. Littelfuse continues to deliver circuit protection solutions through the WICKMANN Group portfolio.

Authorized Distributors
Source:DigiKey
Part No:23121000029
Stock:159
Inv Date:05-28-2026
Price: Unit price: $6.25
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Part No:23121000029
Stock:0
Inv Date:05-29-2026
Price: Unit price: $5.62
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Part No:23121000029
Stock:80
Inv Date:05-28-2026
Price: Unit price: $5.73
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Part No:23121000029
Stock:234
Inv Date:05-29-2026
Price: N/A
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Littelfuse 23121000029 Miniature Fuse Specifications:

  • Dimensions: 6.3x32 mm
  • Voltage: 500 V
  • Characteristic: Very Quick Acting (FF)
  • Operating Temperature: -25 ºC to +70 ºC
  • Climatic Category: -25 ºC/+70 ºC/21 days
  • Unit Weight: 2.5 g (approx.)
  • Rated Current: 2.00 A ... 16.00 A
  • Breaking Capacity: 800
  • Dissipation: 3.0 - 5.2 W
  • Melting Integral: 0.35 - 68 A2s
  • Material: Tube: Ceramic, End Caps: Nickel-plated brass
  • Vibration Resistance: 24 cycles at 15 min. each
  • Marking: FF, Current Rating, 500 V

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Frequently Asked Questions

Where can I buy Littelfuse 23121000029?

You can click on the BUY or RFQ button to purchase 23121000029 from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part 23121000029?

You can download the 23121000029 datasheet or visit the Littelfuse website for support.

Who is the manufacturer of 23121000029?

Littelfuse

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