Schurter MGA-A COTS+ Ceramic Fuses

MGA-A COTS+ 1206 SMD fuse is lead-free, thwarts tin whiskers and dendrites.

Schurter extends its successful MGA range of 1206 SMD ceramic fuses to include a COTS+ version for aviation applications. The MGA-A is completely lead-free, while protecting against the formation of tin whiskers and dendrites. Crystalline tin dendrites and tin whiskers pose a considerable risk of short circuits in highly dense electronics. Dendrites form during the electro-deposition process, whereby heavy marks could appear on the fuse end caps or housing. A thorough inspection and cleaning is required according to MIL-PRF 23419. Tin whiskers on the other hand form after the electro-deposition process.

The MGA-A uses gold alternatively to lead. Gold plated end caps provide a surface where neither whiskers nor dendrites can form. The technical design of the MGA-A is essentially the same as the MGA COTS version and the MGA-S, which is the version up-screened for European Space Agency (ESA) qualification and ESCC listing. With its ultra-robust thin-film construction, hermetic seal, and operating temperature range of -55°C to +125 °C, the MGA-A is a safe solution for use in not only highly sensitive electronics in the aviation industry, but also in widespread industrial-grade applications including intrinsically safe applications according to ATEX and IECEx requirements.

The MGA-A is cURus approved for 0.2 A – 5 A, with a particularly high breaking capacity of up to 300 A at 125 VDC for currents up to 3A; 32 VDC for 4 and 5 A versions. Humidity and moisture tested to MIL STD 202. Shock and vibration tested to IEC 60068-2.

Schurter MGA-A COTS+ Ceramic FusesSchurter MGA-A Features and Benefits:

  • Highest Breaking Capacity Rating for a 1206 on the market - 
  • 300A@125VDC
  • No tin whiskers, no tin dendrites
  • No leaded coating (RoHS conform)
  • Similar fuse qualification as in MIL-PRF 23419
  • Hermetically sealed and robust construction

Schurter MGA-A Applications:

  • Industrial grade space application
  • Avionics
  • Medical equipment
  • Defense

Click here to download the Schurter MGA-A datasheet.

Visit the Schurter page on for more information on their offering or contact a Sager sales representative, the authorized distributor for Schurter, at 1.800.SAGER.800 or