STGP18N40LZ

Overview

The STGP18N40LZ is an automotive-grade Insulated Gate Bipolar Transistor (IGBT) from the PowerMESH™ series, manufactured by STMicroelectronics. It features a collector-emitter breakdown voltage of 420 V and a continuous collector current of 18 A at 25°C. The device operates within a junction temperature range of -55°C to 175°C and is housed in a DPAK (TO-252) surface-mount package. Key electrical parameters include a maximum saturation voltage of 1.9 V at 10 A with a 15 V gate drive, a gate charge of 30 nC, and a short-circuit withstand capability of 3 µs.

Feature Summary

• AEC-Q101 qualified for automotive reliability standards
• PowerMESH™ technology optimized for low on-state voltage
• Integrated Zener diodes for gate-collector and gate-emitter overvoltage protection
• Logic level gate drive compatibility

Applications

• Automotive ignition systems
• Electronic fuel injection control units
• DC-DC converters in vehicle power distribution

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm package type and tape-and-reel specifications. Ensure the component meets the required AEC-Q101 qualification level for your target application environment. Cross-reference the part number with the latest product change notices to confirm manufacturing origin and material compliance status before procurement.

Selection Notes

Select this IGBT when designing circuits requiring robust short-circuit withstand capability and high thermal stability in automotive environments. The integrated gate protection simplifies driver design by eliminating external clamping components. Verify that the gate drive voltage aligns with the logic-level input requirements to ensure optimal switching performance and minimal conduction losses.

Part Context

This component belongs to the STGx18N40LZ family of automotive IGBTs designed specifically for harsh operating conditions. It utilizes advanced PowerMESH™ trench technology to achieve low saturation voltage and high pulsed current capability. The device is engineered to replace older discrete solutions in ignition coils and fuel injectors, offering improved efficiency and reduced system complexity through built-in protection features.

Replacement Considerations

Direct replacements include STGB18N40LZT4 and STGD18N40LZT4. Verify pinout compatibility and thermal resistance values when substituting. Ensure the alternative part maintains the same AEC-Q101 qualification and short-circuit rating for automotive safety compliance.