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

STMicroelectronics STGD19N40LZ

Name: STGD19N40LZ
Brand: STMicroelectronics
SKU: STGD19N40LZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STGD19N40LZ

Manufacturer:: STMicroelectronics

Category:: Single IGBTs

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: STGD19N40LZ.pdf

Description:: IGBT 20V 40A DPAK

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STGD19N40LZ from STMicroelectronics is an automotive-grade 390 V internally clamped IGBT in DPAK (TO-252) package, rated for 25 A continuous collector current at T_C = 100 °C, 180 mJ avalanche energy at T_C = 150 °C with 3 mH inductive load, and logic-level gate drive (V_GE(th) typ. 2.0 V). It serves as a pencil coil electronic ignition driver in gasoline engine management systems.

For engineers reviewing the STGD19N40LZ datasheet, STGD19N40LZ pinout, STGD19N40LZ application, or STGD19N40LZ equivalent, key selection criteria include clamped V_CES rating, ESCIS avalanche robustness, gate-emitter Zener protection, low V_CE(sat) at 4.5 V drive, and AEC-Q101 qualification for under-hood ignition use.

Technical Context

This IGBT integrates dual on-chip Zener diodes: one between gate-collector (clamping V_GE to 12–16 V) and another between gate-emitter (enabling ESD protection up to 8 kV HBM). Its PowerMESH™ structure delivers low conduction loss (V_CE(sat) = 1.35 V @ I_C = 6 A, V_GE = 3.8 V) and high pulsed current capability (I_CP = 40 A).

The device operates with logic-compatible gate drive (V_GE(th) max 2.6 V at 25 °C), supports fast switching (t_d(off) typ. 13.5 µs, dv/dt = 105 V/µs), and features built-in R_GE (12–22 kΩ) and R_G (1.6 kΩ) for stable turn-on/turn-off behavior in high-noise ignition environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CES(clamped)	390 V - Internally clamped collector-emitter breakdown enables safe operation without external snubber in 12 V automotive pencil coil circuits.
V_CE(sat)	1.35 V @ I_C = 6 A, V_GE = 3.8 V - Low saturation voltage minimizes power loss and thermal stress during spark generation.
ESCIS Energy	180 mJ @ T_C = 150 °C, L = 3 mH - Confirmed single-pulse avalanche ruggedness ensures reliability under worst-case inductive turn-off transients.
V_GE(th)	1.55–2.6 V @ 25 °C - Logic-level threshold allows direct drive from MCU GPIO or low-voltage ignition controllers without level-shifting.
R_thj-case	1.2 °C/W - Low junction-to-case thermal resistance enables efficient heatsinking in compact engine compartment layouts.
Q_g	17 nC @ V_CE = 280 V, I_C = 10 A - Moderate gate charge supports fast, controllable switching with standard gate drivers.
C_ies	730 pF @ V_CE = 25 V - Input capacitance value informs gate driver sizing and EMI filtering requirements in high-dV/dt ignition waveforms.

Pinout & Package

DPAK (TO-252) package with exposed drain tab (pin 3) for thermal and electrical connection; thermally enhanced plastic surface-mount outline meeting JEDEC TO-252 standards.

Pin/Terminal	Circuit Role	Design Meaning
1 (G)	Gate	Logic-level input terminal with integrated Zener clamp (12–16 V) and 12–22 kΩ internal gate-emitter resistor for ESD immunity and stable biasing.
2 (E)	Emitter	Low-side return path; referenced to ground in pencil coil driver configuration; carries full load current during conduction.
3 (C / TAB)	Collector / Drain Tab	High-current output terminal connected to pencil coil primary; exposed metal tab provides primary thermal path to PCB copper pour or heatsink.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive under-hood operation across –40 °C to +175 °C junction temperature range with zero defects in accelerated stress testing.
Internal gate-collector Zener clamp	Clamps V_GE to 12–16 V during high-dv/dt events, eliminating need for external gate protection components in ignition coil drivers.
180 mJ ESCIS avalanche rating	Guaranteed single-pulse energy handling at T_C = 150 °C ensures robustness against coil flyback overvoltage without derating.
Logic-level gate drive	V_GE(th) ≤ 2.6 V at 25 °C enables direct interface with 3.3 V or 5 V microcontrollers, reducing BOM count and layout complexity.
Low R_thj-case (1.2 °C/W)	Enables >25 W dissipation at T_C = 100 °C with minimal heatsink area-critical for space-constrained engine control modules.

Applications

Automotive Pencil Coil Driver

Engine Control Unit (ECU) Ignition Stage

Use Scenario: High-voltage spark generation in gasoline direct-injection engines using individual coil-on-plug (COP) architecture.

IC Role / Device Role / Timing Role: Primary switch controlling primary current flow through pencil-type ignition coil; triggered synchronously with crankshaft position signal.

Use Value: Internal 390 V clamping eliminates external TVS, while 180 mJ ESCIS rating ensures reliable spark delivery even during cylinder misfire conditions.

Use Scenario: Compact, high-density ECU designs requiring integrated, AEC-Q101-compliant high-side switching for multi-cylinder sequential ignition.

IC Role / Device Role / Timing Role: Final-stage power switch in ignition driver ASIC subsystem; handles repetitive 10–40 A pulsed loads with <15 µs turn-off delay.

Use Value: Logic-level V_GE(th) and integrated R_GE simplify gate drive design, reducing component count and PCB footprint versus discrete MOSFET+driver solutions.

Two-Stroke Engine Ignition Module

Aftermarket Ignition Control Box

Use Scenario: High-revving two-stroke engines (e.g., motorcycles, marine outboards) demanding rapid, repeatable spark timing at >10 kHz pulse rates.

IC Role / Device Role / Timing Role: Fast-switching IGBT delivering precise dwell time control and consistent spark energy across wide RPM ranges.

Use Value: 105 V/µs dv/dt capability and low Q_g (17 nC) enable clean, jitter-free switching essential for accurate timing at high frequencies.

Use Scenario: Retrofit electronic ignition systems replacing mechanical distributors in classic vehicles with 6–12 V battery supply.

IC Role / Device Role / Timing Role: Robust, self-protected switching element interfacing with Hall-effect or optical crank sensors and legacy coil wiring.

Use Value: Gate-emitter Zener (8 kV HBM) and built-in R_G/R_GE provide noise immunity and stability in electrically noisy vintage vehicle harnesses.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STGD20N40LZ	Higher I_C rating (30 A continuous), identical V_CES(clamped) (390 V), slightly higher V_CE(sat) (1.45 V @ 6 A)	Preferred for higher-energy coils requiring >25 A peak current; same footprint and gate drive compatibility	Select when system demands higher pulsed current headroom without changing PCB layout or driver design.
IRGB4062DPBF	Non-AEC-Q101, higher V_CE(sat) (1.8 V @ 10 A), no internal gate Zener, requires external gate protection	Suitable only for non-automotive or lab-grade ignition prototypes; lacks ESCIS validation and automotive thermal cycling data	Use only in cost-sensitive non-automotive applications where AEC-Q101 compliance and integrated protection are not required.

Compared with STGD20N40LZ, STGD19N40LZ offers tighter V_CE(sat) tolerance and lower gate charge for marginally faster switching; versus IRGB4062DPBF, it delivers guaranteed automotive reliability, integrated protection, and validated avalanche performance-critical for production ECU deployment.

Availability

STGD19N40LZ is available at Aetrix Electronics and suitable for automotive ignition systems, engine control units, and two-stroke ignition modules requiring stable component supply with full AEC-Q101 traceability and long-term lifecycle support.

Supply support for STGD19N40LZ 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 silicon solutions for automotive, industrial, and power applications since 1987.

STGD19N40LZ belongs to ST's PowerMESH™ IGBT portfolio, engineered specifically for high-reliability automotive ignition and inductive load switching where clamped voltage, avalanche ruggedness, and logic-level drive are mandatory.

FAQ

Is STGD19N40LZ pin-compatible with STGD20N40LZ?

Yes-both devices share identical DPAK (TO-252) package dimensions, pin assignment (G-E-C), and thermal pad layout. Mechanical and solder footprint compatibility is confirmed per ST's Package Information document (DocID024506 Rev 6, Section 4.1). No PCB redesign is needed for drop-in substitution.

What is the maximum recommended gate resistor value for reliable turn-off?

ST recommends R_G ≤ 1 kΩ for optimal switching speed and dv/dt control. At R_G = 1 kΩ, t_d(off) is 13.5 µs (typ.) with dv/dt = 105 V/µs. Increasing R_G beyond 2.2 kΩ risks excessive turn-off losses and thermal runaway under high-current pulses.

Does STGD19N40LZ require an external gate-emitter resistor?

No-R_GE (12–22 kΩ) is integrated internally between gate and emitter terminals. This eliminates the need for an external resistor to stabilize bias and suppress oscillation, simplifying layout and improving ESD robustness per AEC-Q101 test requirements.

Can STGD19N40LZ be used in 24 V commercial vehicle ignition systems?

Yes-the 390 V V_CES(clamped) rating and 180 mJ ESCIS energy at T_C = 150 °C exceed typical 24 V system flyback voltages (<350 V). However, dwell time must be reduced vs. 12 V systems to maintain safe junction temperature, as specified in ST's application note AN4712.

STGD19N40LZ Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Tape & Reel (TR)

Product Status:: Active

IGBT Type:: -

Voltage - Collector Emitter Breakdown (Max):: 390 V

Current - Collector (Ic) (Max):: 25 A

Current - Collector Pulsed (Icm):: 40 A

Vce(on) (Max) @ Vge, Ic:: 1.5V @ 4.5V, 10A

Power - Max:: 125 W

Switching Energy:: -

Input Type:: Logic

Gate Charge:: 17 nC

Td (on/off) @ 25°C:: 650ns/13.5µs

Test Condition:: 300V, 10A, 1kOhm, 5V

Reverse Recovery Time (trr):: -

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: DPAK

STGD19N40LZ FAQ

1.How can I place an order for STGD19N40LZ through Aetrix?

Please submit a Request for Quotation (RFQ) for STGD19N40LZ 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 STGD19N40LZ reliable?

The price and inventory of STGD19N40LZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STGD19N40LZ is usually 5 days.

3.What payment methods are accepted for STGD19N40LZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STGD19N40LZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STGD19N40LZ?

STGD19N40LZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STGD19N40LZ 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 STGD19N40LZ?

For technical support, including STGD19N40LZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STGD19N40LZ requirements.

6.How does Aetrix verify that STGD19N40LZ is sourced from the original manufacturer or authorized distributors?

All STGD19N40LZ 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 STGD19N40LZ meets industry standards.

7.What is the process for return or replacement of STGD19N40LZ?

All STGD19N40LZ units undergo pre-shipment inspection (PSI). If there is an issue with STGD19N40LZ, 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 STGD19N40LZ part is unused and in its original packaging.

Return procedure for STGD19N40LZ:

1.Submit a request within 90 days.

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

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