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Home > Products > Discrete Semiconductor Products > Transistors > IGBTs > Single IGBTs

STMicroelectronics STGP18N40LZ

Name: STGP18N40LZ
Brand: STMicroelectronics
SKU: STGP18N40LZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STGP18N40LZ

Manufacturer:: STMicroelectronics

Category:: Single IGBTs

Package:: TO-220-3

Datasheet:: STGP18N40LZ.pdf

Description:: IGBT 420V 30A 150W TO220

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STGP18N40LZ from STMicroelectronics is an AEC-Q101-qualified automotive IGBT optimized for pencil coil electronic ignition drivers, featuring 390 V internal collector-emitter clamping, 180 mJ single-pulse SCIS energy at TC = 150 °C, logic-level gate drive (VGE(th) = 1.2–2.3 V), 1.7 V VCE(sat) at 10 A/25 °C, and integrated 12–22 kΩ gate-emitter resistor. It operates across –40 to 175 °C junction temperature range in harsh engine bay environments.

For engineers reviewing the STGP18N40LZ datasheet, STGP18N40LZ pinout, STGP18N40LZ application, or STGP18N40LZ equivalent, key selection criteria include clamped voltage rating, SCIS robustness under high-temperature inductive switching, gate threshold stability over temperature, integrated ESD protection (8 kV HBM), and D²PAK thermal performance (RthJC = 1 °C/W).

Technical Context

This IGBT employs ST's PowerMESH technology to deliver low conduction loss and high ruggedness in unclamped inductive switching (UIS) conditions typical of automotive ignition coils. Its internally clamped 390 V VCES eliminates need for external snubbers while maintaining fast turn-off (td(off) = 13.5 µs) and controlled dV/dt (105 V/µs) at 300 V bus.

The integrated 16 kΩ typical RGE and gate-clamping diodes (VGE(clamped) = 12–16 V) enable direct microcontroller interface without external gate protection. Thermal design is supported by low junction-to-case resistance (1 °C/W) and validated SCIS testing per Figure 14 with L = 3 mH, VCC = 50 V.

Key Specifications

Parameter	Value and Actual Design Meaning
VCES(clamped)	390 V - Internally clamped collector-emitter breakdown enables snubberless operation in 12 V automotive systems with transient spikes up to 390 V.
VCE(sat) @ 10 A	1.7 V max at 25 °C - Low saturation voltage minimizes conduction loss and self-heating during high-duty-cycle coil dwell.
ESCIS @ 150 °C	180 mJ - Validated single-pulse inductive switching energy at maximum operating temperature ensures reliability in hot engine compartments.
RthJC	1 °C/W - Enables high-power dissipation (150 W at TC = 25 °C) with simple heatsinking, critical for compact ignition module designs.
VGE(th)	1.2–2.3 V - Logic-level threshold allows direct drive from 3.3 V or 5 V MCU GPIOs without level-shifting circuitry.
RGE	12–22 kΩ - Integrated gate-emitter resistor suppresses parasitic oscillation and provides ESD current path without external components.
Qg	29 nC - Low total gate charge supports efficient 5 V gate driving and reduces driver power consumption in high-frequency ignition cycles.

Pinout & Package

STGP18N40LZ is housed in a surface-mount D²PAK (TO-263) package with exposed drain tab for thermal and electrical connection. The package features three terminals: Gate (G), Collector (C), and Emitter (E), with the metal tab electrically connected to the Collector.

Pin/Terminal	Circuit Role	Design Meaning
G	Gate control input	Accepts logic-level voltage (3.8–5 V); integrated clamping diodes protect against ±16 V transients; RGE internal to device.
C (Tab)	Collector power input	High-current path tied to ignition coil primary; metal tab serves as both thermal sink and main current return path.
E	Emitter power output	Connects to ground side of coil; low-inductance layout critical for minimizing voltage overshoot during turn-off.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive under-hood use including temperature cycling, humidity, and mechanical shock per JESD22 standards.
SCIS energy rating	180 mJ at TC = 150 °C ensures reliable operation during worst-case coil de-energization events in hot engine conditions.
Integrated gate protection	On-die gate-collector clamp + gate-emitter resistor eliminate need for external TVS diodes or series resistors in PCB layout.
Logic-level gate drive	VGE(th) down to 0.7 V at 150 °C enables stable turn-on even with MCU VDD droop or elevated ambient temperatures.
Low RthJC	1 °C/W thermal resistance allows >100 W continuous dissipation with minimal heatsink area-critical for space-constrained ECU modules.

Applications

Gasoline Engine Ignition Coil Driver

Diesel Pre-heat Glow Plug Controller

Use Scenario: Driving primary winding of pencil-type ignition coils in 4–12 cylinder gasoline engines with 300–400 V flyback spikes.

IC Role / Device Role / Timing Role: High-voltage, high-current switch controlling coil dwell time and spark timing via precise gate pulse width modulation.

Use Value: Internal 390 V clamping prevents external snubber components; 180 mJ SCIS withstands repeated inductive kickback without degradation over 10+ year vehicle life.

Use Scenario: Switching 12 V/20 A pre-heat glow plugs in diesel passenger vehicles during cold-start conditions (–40 °C to +125 °C ambient).

IC Role / Device Role / Timing Role: Robust power switch enabling PWM-controlled pre-heat duration (2–10 s) with fast turn-off to prevent thermal runaway.

Use Value: Low VCE(sat) (1.35 V typ.) minimizes power loss during extended dwell; AEC-Q101 qualification guarantees reliability across full automotive temperature range.

Start-Stop System Starter Solenoid Driver

Electric Power Steering (EPS) Motor Phase Switch

Use Scenario: Controlling 12 V starter solenoid engagement in micro-hybrid start-stop systems with frequent cycling (≥300,000 cycles).

IC Role / Device Role / Timing Role: High-pulsed-current (40 A ICP) switch delivering short-duration, high-energy pulses to engage starter mechanism.

Use Value: 40 A pulsed current rating and 150 W power dissipation support rapid, repetitive actuation without thermal derating or failure.

Use Scenario: Replacing discrete MOSFETs in low-side phase switches of 12 V EPS motor drivers where space and thermal density are constrained.

IC Role / Device Role / Timing Role: Low-loss, high-ruggedness switching element handling bidirectional current during motor commutation and regenerative braking.

Use Value: 105 V/µs dV/dt capability and low Qg (29 nC) reduce EMI and gate driver losses-improving system efficiency and EMC compliance.

Equivalent & Alternatives

The following parts are listed as comparable options for similar IGBT ignition driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STGB18N40LZT4	Same die, D²PAK package with tape-and-reel packing; identical electrical specs and AEC-Q101 qualification.	Direct drop-in replacement with same footprint and thermal profile; optimized for automated SMT assembly.	Select when requiring standard reel packaging and compatibility with high-volume pick-and-place lines.
INFINEON IKP10N40T6	400 V VCES, higher VCE(sat) (2.2 V @ 10 A), no integrated RGE; requires external gate resistor and ESD protection.	Suitable for non-AEC-Q101 applications or where higher voltage margin is prioritized over integration.	Choose only if board layout accommodates external protection components and qualification to AEC-Q101 is not mandatory.

Compared with STGB18N40LZT4, the STGP18N40LZ offers identical performance in a different packaging format (bulk vs. tape-and-reel), while the IKP10N40T6 trades integration and qualification for higher voltage headroom-making STGP18N40LZ optimal for cost-sensitive, space-constrained automotive ignition modules requiring zero-additional-component design.

Availability

STGP18N40LZ is available at Aetrix Electronics and suitable for gasoline engine ignition systems, diesel glow plug controllers, start-stop solenoid drivers, and EPS motor phase switching requiring stable component supply across automotive production lifecycles.

Supply support for STGP18N40LZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, MEMS, power, and microcontroller solutions for automotive, industrial, and consumer markets.

This IGBT belongs to ST's Automotive Power portfolio, specifically engineered for high-ruggedness, high-temperature switching in engine management and electrified powertrain subsystems where reliability under extreme thermal and electrical stress is non-negotiable.

FAQ

Is STGP18N40LZ pin-compatible with STGB18N40LZT4?

Yes-both share identical D²PAK (TO-263) pinout: Gate (pin 1), Collector (tab), Emitter (pin 2). Mechanical dimensions, thermal pad layout, and solder footprint match exactly per ST's DS5664 Rev 8 package drawings. Only packaging differs: STGP18N40LZ is supplied in bulk, while STGB18N40LZT4 uses tape-and-reel.

What is the maximum recommended gate drive voltage for STGP18N40LZ?

The absolute maximum VGE is ±20 V, but ST specifies VGE(clamped) = 12–16 V due to on-chip gate-emitter clamping diodes. For reliable operation, apply 4.5–5 V gate drive-sufficient to fully enhance the device while staying within safe clamping limits and avoiding gate oxide stress.

Does STGP18N40LZ require an external freewheeling diode in ignition coil applications?

No-its internally clamped 390 V VCES eliminates need for external freewheeling diodes or RC snubbers. During coil turn-off, energy is safely dissipated within the IGBT's silicon structure, verified by ESCIS testing at 180 mJ (TC = 150 °C, L = 3 mH), per Figure 14 test circuit.

How does the integrated RGE affect switching speed and EMI performance?

The 16 kΩ typical RGE dampens gate ringing and reduces dv/dt-induced crosstalk without significantly slowing switching-td(on) remains 0.65 µs and td(off) 13.5 µs. This integrated resistor lowers radiated EMI versus discrete gate-resistor layouts and improves immunity to noise coupling in dense ECU PCBs.

STGP18N40LZ Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: PowerMESH™

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Obsolete

IGBT Type:: -

Voltage - Collector Emitter Breakdown (Max):: 420 V

Current - Collector (Ic) (Max):: 30 A

Current - Collector Pulsed (Icm):: 40 A

Vce(on) (Max) @ Vge, Ic:: 1.7V @ 4.5V, 10A

Power - Max:: 150 W

Switching Energy:: -

Input Type:: Logic

Gate Charge:: 29 nC

Td (on/off) @ 25°C:: 650ns/13.5µs

Test Condition:: 300V, 10A, 5V

Reverse Recovery Time (trr):: -

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220

STGP18N40LZ FAQ

1.How can I place an order for STGP18N40LZ through Aetrix?

Please submit a Request for Quotation (RFQ) for STGP18N40LZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for STGP18N40LZ reliable?

The price and inventory of STGP18N40LZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STGP18N40LZ is usually 5 days.

3.What payment methods are accepted for STGP18N40LZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STGP18N40LZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STGP18N40LZ?

STGP18N40LZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STGP18N40LZ order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for STGP18N40LZ?

For technical support, including STGP18N40LZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STGP18N40LZ requirements.

6.How does Aetrix verify that STGP18N40LZ is sourced from the original manufacturer or authorized distributors?

All STGP18N40LZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STGP18N40LZ meets industry standards.

7.What is the process for return or replacement of STGP18N40LZ?

All STGP18N40LZ units undergo pre-shipment inspection (PSI). If there is an issue with STGP18N40LZ, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The STGP18N40LZ part is unused and in its original packaging.

Return procedure for STGP18N40LZ:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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