SCHURTER MKF Surface Mount Fuse Datasheet

Category: Circuit Protection Devices, Electronics, Schurter Inc

Overview of SCHURTER MKF Surface Mount Fuse

The SCHURTER MKF is a quick-acting surface mount fuse designed for use in a variety of applications including telecom and household appliances. It comes in a 7 x 2.54 mm size and is rated for 125VAC and 125VDC. Its high breaking capacity makes it ideal for circuit protection in demanding environments.

Key Features

Technical Specifications:
– Rated Voltage: 53 125VAC, 65 125VDC
– Rated Current: 0.63 to 15A
– Breaking Capacity: 30u
– Characteristic: Quick-Acting F
– Mounting: PCB, SMT (Surface Mount Technology)
– Admissible Ambient Air Temperature: 55°C to 85°C
– Climatic Category: 55/085/56 in accordance with IEC 60068
– Material: Ceramic tube with tin-plated copper alloy endcaps
– Unit Weight: 15g
– Storage Conditions: -°C to 60°C, max 70% RH
– Product Marking includes rated current

Soldering Methods:
Suitable for reflow and wave soldering, the MKF fuse supports a soldering profile of 235°C for 2 seconds according to the IEC 60068-2-58 Test Td, and resistance to soldering heat is specified at 260°C for 10 seconds. The moisture sensitivity level is MSL 1, as per J-STD-020.

Approvals, Standards, and Compliance

The MKF series has received UL approval under file number E42088 and follows the UL 248-14 standard for low-voltage fuses. It is also designed according to CSA22.2 No. 248.14 for supplemental fuses. For applications compliance, it is designed according to IEC/UL 62368-1 standards concerning audio/video, information, and communication technology equipment. SCHURTER also ensures that the product meets European Union’s CE and UKCA guidelines, as well as China’s RoHS, EU RoHS 2011/65/EU with Amendment (EU) 2015/863, and REACH Regulation (EC) No 907/2006.

Product Use and Application

SCHURTER designs its products for use in industrial settings, and they come with certifications from independent testing bodies according to various national and international standards. Custom specifications can be accommodated for sectors such as automotive, medical technology, and aerospace, but only through individual agreements.

Soldering Pads and Pre-Arcing Time

The datasheet specifies the dimensions for soldering pads as well as the pre-arcing time for a range of rated currents, essential for designers to understand the fuse’s response times under different overcurrent conditions.