The 665 Series LT-5™ Time Lag Fuse is a miniature, high-performance fuse for use in a variety of electrical applications. The fuse has a long time 100% current rating and a short time 200% current rating. The 665 Series LT-5™ Time Lag Fuse is CSA and UL listed and has a wide range of current and voltage ratings.
This document provides technical data for the Littelfuse LT-5™ Subminiature Time Lag Fuse 665 Series. It covers electrical characteristics, including interrupting ratings and time-current curves, as well as agency approvals from Underwriters Laboratories and CSA.
The datasheet also details environmental and mechanical specifications, such as operating temperature ranges, vibration resistance, and soldering parameters. Physical specifications include material composition and packaging options for ordering.
| Interrupting Rating | 50A at 250VAC |
|---|---|
| Operating Temperature | -40˚C to +85˚C |
| Case Resistance | Min 100 Mohms |
| Vibration Resistance | 20gn, 20 min, 10Hz to 2,000Hz |
| Mechanical Shock | 50g, half sine wave, 11ms |
| Soldering Heat Resistance | 10 sec. At 260˚C |
| Terminal Strength | Tensile load min. 9N |
They are Listed by Underwriters Laboratories from 50mA to 10A and CSA Certified from 50mA to 6.3A.
The interrupting rating is 50A at 250VAC.
The parameters are Wave Solder at 235˚C for a maximum of 2 seconds.