STGD18N40LZ-1

Overview

The STGD18N40LZ-1 is an automotive-grade IGBT from the PowerMESH™ series, designed for coil driving in harsh automotive ignition systems. It features a 420V collector-emitter breakdown voltage and a continuous collector current of 25A at 25°C. The device supports a pulsed collector current of 40A and dissipates up to 125W of power. Key electrical parameters include a saturation voltage of 1.7V @ 4.5V, 10A, gate charge of 29nC, and turn-on/turn-off times of 650ns/13.5µs under test conditions of 300V, 10A, 5V. It operates within a junction temperature range of -55°C to 175°C.

Feature Summary

• PowerMESH™ technology optimized for low on-state voltage and high short-circuit energy capability
• Integrated ESD protection and gate-collector high voltage clamping
• Logic level gate drive with integrated gate resistor
• AEC-Q101 qualified for automotive applications

Applications

• Automotive ignition systems
• Coil driving applications
• Harsh environment automotive electronics

Procurement Notes

Verify the exact suffix against official STMicroelectronics documentation, as standard listings often use 'STGD18N40LZT4'. Confirm AEC-Q101 qualification status and specific package variants (DPAK) directly with the manufacturer or authorized distributors to ensure compliance with automotive grade requirements.

Selection Notes

Select this component for designs requiring robust short-circuit withstand capability and logic-level compatibility. Ensure thermal management supports the 125W dissipation limit. Verify that the 420V rating aligns with system voltage spikes and that the DPAK package fits the PCB layout constraints.

Part Context

This part belongs to the STGx18N40LZ family of application-specific IGBTs. It shares core characteristics with similar models like STGB18N40LZT4 but may differ in specific packaging or testing configurations. The PowerMESH™ technology distinguishes it from standard IGBTs by offering improved ruggedness for ignition coils.

Replacement Considerations

Direct substitutes include STGB18N40LZT4 and STGD18N40LZT4. Verify pinout compatibility and thermal resistance values before substitution. Ensure the replacement part maintains the same AEC-Q101 qualification and internal clamping features.