This document describes the characteristics of 378 surface mount fuses, including their nominal current, nominal voltage, cold resistance, and melting I2t values. These fuses comply with the IEC 60127-4 standard, are certified by UL, METI, and CCC, and have high environmental adaptability.
This datasheet details the Littelfuse NANO 250V UMF product family, a subminiature surface mount fuse series. The product complies with IEC Publication IEC 60127-4 (Universal Modular Fuse-Links) and is ROHS compliant, compatible with lead-free solders and higher temperature profiles.
The document provides comprehensive electrical characteristics, including ampere opening ratings and time, as well as interrupting ratings of 100 amperes at 250VAC. It also lists environmental specifications such as operating temperature ranges and shock/vibration standards, along with physical specifications for materials and soldering parameters.
| Voltage Rating | 250V |
|---|---|
| Interrupting Rating | 100 amperes at 250VAC |
| Operating Temperature | -55°C to 125°C |
| Body Material | High Performance Ceramic |
| Terminations Material | Silver plated brass |
| Wave Solder Temp | 260°C, 10 seconds maximum |
| Reflow Solder Temp | 260°C, 30 seconds maximum |
It complies with IEC Publication IEC 60127-4 Universal Modular Fuse-Links [UMF].
Yes, the product is ROHS Compliant and compatible with lead-free solders.
The minimum insulation resistance is 0.1MΩ at 500VDC.