STMicroelectronics FLC10-200H

The FLC10 series is designed for high-power capacitance-discharge ignition. In a representative circuit, a storage capacitor charges from a rectified AC supply; when its voltage reaches the integrated zener threshold, the thyristor fires and transfers energy through an ignition-transformer primary. The integrated diode provides a reverse-current path during the discharge cycle.

ST's exact order-code table identifies FLC10-200H as IPAK. The customer package field also lists TO-251-3 Short Leads and TO-251AA as package aliases; use the manufacturer IPAK drawing and dimensions for footprint and mechanical verification.

Layout checks

• Use ST's IPAK drawing and dimensions, not a generic DPAK footprint.
• Connect pins 1 and 3 together as required by the functional diagram.
• Account for the tab and pin 2 in the electrical and thermal layout.
• Verify lead spacing, creepage and pulsed-current paths on the actual PCB.

The registered IPAK JPG is currently missing from the local package library; this image path is reserved for the verified file and must not be treated as a confirmed illustration.

The ST functional diagram groups pins 1 and 3 as one circuit connection and pin 2 with the tab as the other connection.

Confirm orientation and terminal identification against the ST IPAK package drawing before routing or substitution.

Electrical figures are datasheet limits or typical values only at the stated test conditions; do not apply them as unconditional circuit ratings.

ST also lists FLC10-200B in the same FLC10 family, but it uses DPAK rather than IPAK and has a different mounting footprint. It is a design-comparison candidate, not a drop-in mechanical replacement. Compare the exact order code, lead/tab mapping, surge waveform, thermal path, operating temperature and applicable approvals before redesign. No unverified internal product link is provided.

STMicroelectronics specifies FLC10-200H in the FLC10 fire lighter circuit datasheet (DocID5202 Rev 8, June 2014). The H suffix denotes IPAK; the related B suffix denotes DPAK. Consult the latest ST-controlled documentation and product status before new design use.

Verify the full order code, ST marking, IPAK body and lead geometry, and traceability against the manufacturer's controlled documentation. Package drawings and markings should be checked on received material; do not infer authenticity from an illustration alone.

Capacitance-discharge ignition circuits can produce hazardous mains and high-voltage pulses. Validate isolation, spark energy, repetition rate, component derating, PCB geometry and thermal behavior in the final product. The package illustration is unavailable pending a verified IPAK JPG; do not release this detail for publication until that resource is checked.