A PTC heating chip is the bare ceramic heating element at the core of every PTC heater — a self-regulating PTC ceramic disc or wafer supplied with just a lead-wire configuration and no outer housing. Because the chip has no casing, it’s the smallest, lowest-cost way to add self-limiting PTC heating to a product, provided your own enclosure can supply the mechanical protection a cased heater would otherwise provide.

As a PTC ceramic heating chip manufacturer, PTCWORKS supplies three lead-wire configurations to match different embedding constraints: dual-surface electrode type chips, with electrodes on opposite faces for sandwich-style contact between two plates; single-surface lead wire type chips, with both leads exiting one face for simpler PCB or bracket mounting; and side-edge lead wire type chips, with leads exiting from the ceramic’s edge for the lowest possible mounted profile.

Like every PTC element we manufacture, heating chip resistance is tuned to a target Curie point during ceramic formulation, so the chip self-limits at a stable temperature without an external thermostat or control circuit. This makes heating chips a common choice for OEM engineers embedding PTC heating directly into compact consumer electronics, small appliance heating cores, and sensor or actuator assemblies where board space is limited.