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Bourns Polymeric Thermal Cutoff Devices | Digi-Key Daily

Bourns offers their series of polymeric thermal cutoff devices, which are designed to protect USB-C cables from potentially dangerous thermal runaway events. Two series are offered: the P-TCO-U series, which comes in a 1210 footprint, and the P-TCO-N version, available in an ultra-compact 1206 footprint. Each series features a maximum operating voltage rating of 12 volts, a maximum operating current rating of 50 amps, and comes in three different versions to offer protection for six different temperature/current combinations. Both series can achieve initial resistance values as low as 2 milliohms and post-trip resistance values down to 14 milliohms, allowing them to attain current-carrying capabilities up to 4.5 amps. Applications include USB-C cables and connectors, and protections for mobile device fast-charging ports.

12/4/2019 3:37:53 PM

Part List

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
POLYMERIC TCO, 1210, 12V/3.5AP-TCO-U350/12-2POLYMERIC TCO, 1210, 12V/3.5A2400 - ImmediateView Details
POLYMERIC TCO, 1210, 12V/4.0AP-TCO-U400/12-2POLYMERIC TCO, 1210, 12V/4.0A3500 - ImmediateView Details
POLYMERIC TCO, 1210, 12V/4.5AP-TCO-U450/12-2POLYMERIC TCO, 1210, 12V/4.5A3480 - ImmediateView Details
POLYMERIC TCO, 1206, 12V/3.5AP-TCO-N350/12-2POLYMERIC TCO, 1206, 12V/3.5A3485 - ImmediateView Details
POLYMERIC TCO, 1206, 12V/4.0AP-TCO-N400/12-2POLYMERIC TCO, 1206, 12V/4.0A3500 - ImmediateView Details
POLYMERIC TCO, 1206, 12V/4.5AP-TCO-N450/12-2POLYMERIC TCO, 1206, 12V/4.5A3490 - ImmediateView Details