Bourns Polymeric Thermal Cutoff (P-TCO) Devices are designed to protect USB-C cables from destructive and potentially dangerous thermal runaway events. The P-TCO family includes the P-TCO-U series in a 1210 footprint and P-TCO-N series in an ultra-compact 1206 footprint. The Bourns P-TCO family offers compact, ultra-low resistance thermal protection to guard against potentially dangerous runaway events. Each P-TCO series features a 12V maximum operating voltage rating, a 50A maximum operating current rating, and comes in three different models designed to provide protection for six different temperature-current combinations. The ultra-low resistance materials used in the P-TCO family enable both the P-TCO-U and P-TCO-N series to achieve initial resistance values as low as 2mΩ and post-trip resistance values as low as 14mΩ, allowing the devices to achieve current carrying capabilities as high as 4.5A.
