FST 5×20 Miniature Fuse Datasheet

Category: Circuit Protection Devices, Electronics, Schurter Inc

FST 5×20 Miniature Fuse Overview

The FST 5×20 datasheet provides essential information on the SCHURTER time-lag miniature fuses, suitable for primary protection in various equipment. These fuses are designed to comply with IEC 60127-2 standard, functioning with low breaking capacity, and are constructed with a glass tube and nickel-plated copper alloy endcaps. Their dimensions are specified as 5 x 20 mm.

Key Technical Specifications

Technical specifications highlighted in the datasheet include a rated voltage of 250VAC, a wide range of rated currents from 0.05 to 20A, and a breaking capacity between 35A and 200A. The fuses demonstrate a ‘time-lag’ characteristic and can operate within an ambient air temperature range of -55°C to 125°C. The fuses are part of a series that provides important pulse strength and impulse withstand voltage data, relevant for conditions set by international standards.

Approvals and Compliance

The FST 5×20 miniature fuses come with multiple international certifications:

Approval marks from VDE and Underwriters Laboratories (UL), solidifying their compliance with electronic product safety requirements.
Certifications from the China Compulsory Certificate (CCC) system and CQC for market compliance in China.
The Japan Electrical Safety & Environment Technology Laboratories (METI) approvals indicating safety and environmental consideration.
Guidelines compliance, including the CE marking, UKCA declaration of conformity, RoHS, and REACH regulations, ensuring they meet EU and international standards for safety and environmental impact.

Standard Compliance and Design

These fuses adhere to various product and application standards, which include:

IEC 60127-2/3 for miniature fuses and cartridge fuse links.
UL 248-14 and CSA22.2 No. 248.14 for low voltage supplemental fuses.
IEC/UL 62368-1 for safety requirements in audio, video, information, and communication technology equipment.

The fuses are designed with a focus on industrial applications, and SCHURTER offers customized solutions to meet industry-specific needs such as automotive, medical technology, and aerospace.

Supporting Resources

Detailed product information, including approvals, storage conditions, and product markings, can be found in the provided datasheet weblinks. The datasheet also includes a myriad of resources, such as an application note on impulse withstand voltage, distributor stock-checks, and product requests.