How to specifically know the time of time-delay fusing fuses?

Power Circuit Protection
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Question: How can you know the specific timing of a time-delay fuse?
Answer: Check the T-I (Time-Current) curve in the specification sheet.

Example:

DigiKey Part Number F1710-ND
Manufacturer Littelfuse Inc.
Manufacturer Product Number 0216008.MXP
Detailed Description 8 A 250 V AC DC Fuse Cartridge, Ceramic Requires Holder 5mm x 20mm
Datasheet Datasheet

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We can find the T-I (Time-Current) curve of this product in the Datasheet

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As can be seen from the graph:

  • When the current is relatively small (towards the left side of the horizontal axis), it takes a relatively long time for the fuse to blow, which may reach several hundred seconds or even thousands of seconds.
  • As the current increases (moving to the right along the horizontal axis), the time required for the fuse to blow decreases rapidly. For example, when the current reaches a certain value, the blow-time may be shortened to a few milliseconds.

More Littelfuse circuit protection products

Littelfuse Circuit Protection products provide stable and reliable signal transmission guarantee for all kinds of precision electronic devices by virtue of their precise adjustment relationship with capacitance, dynamic resistance, etc. in terms of high-frequency characteristics, and their performance is excellent in the industry.

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  6. How to specifically know the time of time-delay fusing fuses?