This episode of Tech Specs is part of a video series highlighting the features, applications, and technical specs of newly-released products.

Bourns Low Ohmic PTC Resettable Fuses

The Bourns MF-PSML series of low ohmic PTC resettable fuses have holding current ratings up to 3.5 amps in a low-profile 0805 package for mobile and other space-constrained applications. The high current is paired with an initial resistance as low as 3 milli-ohms, and post-trip resistance as low as 25 milli-ohms. This is possible because the fuses use Bourns’ freeXpansion technology, which eliminates mechanical restrictions on the fuse as it expands and contracts. The result is smaller fuses with stable performance and longer product life. Bourns’ MF-PSML fuses are rated for 6V and 50A max, and they’re ideal for protecting USB and HDMI ports, motherboards, smartphones, and other devices.

  • Holding current (Ihold) up to 3.5 A
  • Low-profile 0805 package for space-constrained applications
  • Initial resistance (RMin) as low as 3 mΩ
  • Post-trip resistance (R1Max) as low as 25 mΩ
  • 6 V maximum voltage
  • 50 A maximum current

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