SCHURTER SMD-SPT 5×20 Surface Mount Fuse Datasheet

Category: Circuit Protection Devices, Electronics, Schurter Inc

Overview of SCHURTER SMD-SPT 5×20 Surface Mount Fuse

The SCHURTER SMD-SPT 5×20 is a time-lag (T) type surface mount fuse, designed for primary protection on Surface Mount Device (SMD) Printed Circuit Boards (PCBs). With a voltage rating of 250VAC and 300VDC and current ratings from 1 to 16A, this fuse is constructed to deliver reliable performance even under demanding conditions. The breaking capacity ranges between 500A to 1500A, ensuring secure interruption.

Applications and Technical Specifications

The SMD-SPT 5×20 fuse is best suited for applications requiring a fuse that can be directly soldered onto SMD PCBs. It is especially relevant for industrial environments and can be utilized in sectors such as automotive (IATF 16949), medical technology (ISO 13485), and aerospace, subject to specific agreements with SCHURTER.

The housing material is ceramic with gold-plated copper alloy terminals, and the unit can withstand ambient air temperatures ranging from -55°C to +125°C. This component is also highly resistant to soldering heat, moisture, thermal shock, vibration, and solvents, which is critical for maintaining functionality and safety in a variety of operating environments.

Soldering and Handling

Reflow soldering is the recommended method for attaching the SMD-SPT 5×20 fuse to PCBs, and the datasheet provides detailed specifications for the soldering profile, including a maximum temperature of 260°C for 10 seconds. The fuse is classified under the Moisture Sensitivity Level (MSL) as per the J-STD-020 standard.

Approvals, Compliances, and Standards

Noteworthy approval marks include certifications from VDE, UL, and CCC, signifying compliance with safety requirements. The SMD-SPT 5×20 fuse is designed in accordance with multiple industry standards, such as IEC 60127-2/5, UL 248-14, and CSA C22.2 No. 248.14. Additionally, it meets the safety requirements of IEC/UL 62368-1 for audio/video, information, and communication technology equipment.

Compliances include the CE declaration of conformity, the UKCA declaration of conformity, the RoHS directive, China RoHS, and the REACH regulation. These certifications and compliance marks ensure that the fuse meets the highest standards of product safety, environmental friendliness, and suitability for international markets.

Product Identification and Design

The fuse is clearly marked with rated current, voltage, characteristic, and breaking capacity, ensuring ease of identification and proper usage. Detailed technical data are presented including dimensions, pre-arcing times for rated currents, and solder pad dimensions.

For additional information on approvals, codes, usage instructions, and test conditions, users are directed to consult the “Details about Approvals” section.