Surface Mount Fuse, 5 x 20 mm; Time-Lag T, H, 250 VAC, Au plating

Category: Circuit Protection Devices, Electronics, Schurter Inc

Description

The SMD-SPT 5×20 is a surface mount fuse designed for primary protection on SMD PCBs (Printed Circuit Boards). With dimensions of 5 x 20 mm, the fuse exhibits a time-lag (‘T’) characteristic, and is suitable for applications requiring a slow-blow fuse.

Technical Specifications

With a rated voltage of 250 VAC and 300 VDC, and a rated current range from 1 to 16 amperes, this fuse offers a breaking capacity between 500A and 1500A. It’s designed to be mounted on PCBs using surface-mount technology (SMT) and can operate within an ambient air temperature ranging from -55°C to 125°C.

The fuses are manufactured with a ceramic housing and gold-plated copper alloy terminals. They are classified under climatic category 55/125/21 in accordance with IEC 60068, which dictates the operating temperature range and humidity conditions. Product markings include the rated current, voltage, characteristic, and breaking capacity.

Approvals and Compliances

The SMD-SPT 5×20 fuses comply with the IEC 60127-2 standard for fuses and have achieved approvals from several certification bodies. This includes a high breaking capacity designation and the approval marks of VDE, UL, and CCC, indicating compliance with safety requirements. Specific certificates such as VDE Certificate Number 40010881, UL’s UR File Number E41599, and CCC Certificate Number 2020970207000123 are provided for reference.

Soldering and Environmental Resilience

These fuses support reflow soldering methods and are tested for solderability at 245°C for 3 seconds, per IEC 60068-2-58 Test Td. They have a resistance to soldering heat of 260°C for 10 seconds. They can endure moisture resistance tests, thermal shocks, resistance to solvents, terminal strength assessments, and vibration tests, proving their reliability in various conditions.

Storage conditions allow a temperature range from -55°C to 60°C with a maximum of 70% relative humidity. The fuses also have a weight and storage guidelines to help users maintain product integrity before use.

Product References and Information

Additional product information, such as data sheets, stock checks, product requests, and detailed compliance information, can be found through provided weblinks and references to distributors’ and manufacturers’ resources. While designed for industrial environments, SCHURTER offers customized solutions with specific characteristics and requirements for various industries, including automotive, medical technology, and aerospace, subject to individual agreements.