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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

STMicroelectronics STPSC30G12WLY

Name: STPSC30G12WLY
Brand: STMicroelectronics
SKU: STPSC30G12WLY
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPSC30G12WLY

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: TO-247-2

Datasheet:: STPSC30G12WLY.pdf

Description:: AUTOMOTIVE 1200 V, 30 A SILICON

Quantity:: RFQ Add To RFQ list

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Inventory:115

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Product details

Overview

STPSC30G12WLY from STMicroelectronics is an AEC-Q101-qualified 1200 V, 30 A silicon carbide Schottky power diode in DO-247LL package, designed for high-efficiency, hard-switching PFC and on-board EV battery chargers. It delivers negligible reverse recovery, temperature-independent switching, 1.35 V typical forward voltage at 30 A, and 296 mJ single-pulse avalanche energy rating.

For engineers reviewing the STPSC30G12WLY datasheet, STPSC30G12WLY pinout, STPSC30G12WLY application, or STPSC30G12WLY equivalent, key selection criteria include its 175 °C maximum junction temperature, 250 A non-repetitive surge current (10 ms), robust high-voltage periphery, ECOPACK2 compliance, and low capacitive charge (149 nC at 800 V).

Technical Context

This SiC Schottky diode eliminates minority-carrier storage and reverse recovery charge, enabling zero-recovery losses and minimal ringing during turn-off. Its wide band-gap silicon carbide substrate enables stable 1200 V blocking with low VF and near-zero temperature dependence of dynamic behavior.

The device features a thermally optimized DO-247LL package with 0.30 °C/W typical junction-to-case thermal resistance and is rated for continuous operation from –55 °C to +175 °C junction temperature, supporting high-power density designs in automotive and industrial charging systems.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1200 V - Enables use in 800 V DC-link systems with 50%+ voltage margin for transient overvoltage protection
I_F(AV)	30 A at T_c = 145 °C - Supports continuous conduction mode PFC stages with high average current handling
V_F (typ.)	1.35 V @ 30 A, 25 °C - Reduces conduction loss vs. Si counterparts; enables >99% PFC efficiency at full load
E_AS	296 mJ - Withstands single-event avalanche stress without degradation, critical for unclamped inductive switching
R_th(j-c)	0.30 °C/W (typ.) - Allows direct heatsink mounting with low thermal impedance, essential for compact OBC thermal design
Q_Cj	149 nC @ V_R = 800 V - Low capacitive charge minimizes turn-off loss and EMI in high-frequency (>100 kHz) PFC topologies
T_j max	+175 °C - Enables operation in under-hood or enclosed charging environments without derating

Pinout & Package

STPSC30G12WLY is housed in a DO-247LL (long leads) package with two terminals: anode and cathode. The package uses epoxy compliant with UL94 V0, supports conduction cooling, and has a recommended mounting torque of 0.8 N·m.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Current entry point during forward conduction	Connected to AC input or switching node in boost PFC; must handle 250 A surge (10 ms)
Cathode	Current exit point during forward conduction; common reference for reverse voltage	Connected to DC bus; withstands 1200 V repetitive reverse bias and 175 °C junction temperature

Key Features

Feature	Design Value
AEC-Q101 qualification & PPAP capability	Validated for automotive-grade reliability in HEV/EV on-board chargers and charging stations
None or negligible reverse recovery	Eliminates reverse recovery current and associated switching loss/EMI in hard-switched topologies
Switching behavior independent of temperature	Ensures consistent timing and loss profile across –55 °C to +175 °C, simplifying thermal design
Avalanche energy rated (296 mJ)	Provides intrinsic ruggedness against unclamped inductive turn-off events without external snubbers
ECOPACK2 compliance	Meets RoHS and halogen-free requirements for global automotive and industrial market access

Applications

Boost PFC Stage

HEV/EV On-Board Charger (OBC)

Use Scenario: High-frequency (70–150 kHz), continuous-conduction-mode boost converter in 3.3 kW–11 kW AC/DC front-end.

IC Role / Device Role / Timing Role: Output rectifier handling 30 A average forward current and 250 A surge during line transients.

Use Value: 1.35 V V_F reduces conduction loss by ~40% vs. Si fast recovery diodes, improving system efficiency by 0.5–1.2%.

Use Scenario: Bidirectional AC/DC and DC/DC conversion stage in integrated vehicle charging units.

IC Role / Device Role / Timing Role: High-reliability output diode in dual-active-bridge or CLLC resonant converters operating up to 175 °C ambient.

Use Value: Avalanche rating and -55 °C to +175 °C operation ensure functional safety compliance (ISO 26262 ASIL-B) without derating.

EV Charging Station (AC Input Stage)

Industrial Motor Drive Front-End

Use Scenario: Three-phase PFC rectifier in 22 kW wallbox or depot charger with active cooling.

IC Role / Device Role / Timing Role: 1200 V-class freewheeling/boost diode managing 30 A RMS current and 119 A peak repetitive forward current.

Use Value: 0.30 °C/W R_th(j-c) enables direct heatsink mounting and reduces thermal interface layers, cutting system BOM cost.

Use Scenario: Regenerative braking and DC link clamping in servo drives and HVAC inverters.

IC Role / Device Role / Timing Role: Snubberless freewheeling diode absorbing inductive kickback during IGBT turn-off.

Use Value: Zero reverse recovery prevents voltage overshoot spikes >1500 V, eliminating need for TVS clamps and reducing layout complexity.

Equivalent & Alternatives

The following parts are listed as comparable options for similar silicon carbide Schottky diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
C3D03065E (Wolfspeed)	650 V rating, 30 A, TO-247-2L package, higher C_j (270 pF)	Not suitable for 1200 V DC-link systems; limited to 400–600 V PFC	Select only when system voltage ≤650 V and lower cost is prioritized over voltage margin
FFSH30120A (ON Semiconductor)	1200 V, 30 A, TO-247-2L, higher V_F (1.55 V typ.), no AEC-Q101 certification	Lacks automotive qualification; requires additional qualification testing for OBC use	Acceptable for industrial PFC where AEC-Q101 is not mandated and 0.2 V higher V_F is tolerable

Compared with C3D03065E and FFSH30120A, STPSC30G12WLY uniquely combines 1200 V rating, AEC-Q101 qualification, 1.35 V V_F, and DO-247LL long-lead form factor-making it the only drop-in solution for space-constrained, automotive-grade 11 kW OBC designs requiring zero-recovery performance and PPAP readiness.

Availability

STPSC30G12WLY is available at Aetrix Electronics and suitable for boost PFC, HEV/EV on-board battery chargers, and EV charging station designs requiring stable component supply, automotive-grade traceability, and long-term lifecycle support.

Supply support for STPSC30G12WLY 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, delivering intelligent power, analog, MEMS, and microcontroller solutions for automotive, industrial, and consumer markets.

This device belongs to ST's STPSC family of silicon carbide Schottky diodes, engineered specifically for high-efficiency, high-reliability power conversion in electric vehicle charging and industrial motor drive applications.

FAQ

What is the maximum allowable case temperature for continuous operation?

The STPSC30G12WLY is rated for continuous operation with case temperature up to 145 °C while delivering 30 A average forward current. At 150 °C case temperature, the device supports 225 A non-repetitive surge current (10 ms), but sustained operation above 145 °C requires derating per Figure 5 in DS14118.

Does this diode require a gate resistor or driver circuit?

No - STPSC30G12WLY is a two-terminal power diode with no gate terminal. It operates passively as a unidirectional conductor and requires no external drive circuitry, unlike MOSFETs or IGBTs. Its Schottky structure enables self-commutating behavior without control signals.

Can STPSC30G12WLY replace a silicon fast recovery diode in an existing PFC design?

Yes, with layout and thermal review: its 1200 V rating and 30 A rating match common Si FRD footprints, but lower V_F and zero recovery reduce heatsink size and eliminate snubbers. Verify PCB copper area, solder joint integrity, and mounting torque (0.8 N·m) to leverage its 0.30 °C/W R_th(j-c).

Is the DO-247LL package compatible with automated pick-and-place assembly?

Yes - the DO-247LL package is compatible with standard SMT placement equipment using vacuum nozzles. Its long leads and defined mechanical dimensions (per Table 6 in DS14118) support precise placement, though wave or selective soldering is recommended over reflow due to thermal mass and epoxy limitations.

STPSC30G12WLY Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-247-2

Packaging:: Tube

Product Status:: Active

Technology:: SiC (Silicon Carbide) Schottky

Voltage - DC Reverse (Vr) (Max):: 1200 V

Current - Average Rectified (Io):: 30A

Voltage - Forward (Vf) (Max) @ If:: 1.5 V @ 30 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 225 µA @ 1200 V

Capacitance @ Vr, F:: 2272pF @ 0V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: DO-247 LL

Operating Temperature - Junction:: -55°C ~ 175°C

STPSC30G12WLY FAQ

1.How can I place an order for STPSC30G12WLY through Aetrix?

Please submit a Request for Quotation (RFQ) for STPSC30G12WLY 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 STPSC30G12WLY reliable?

The price and inventory of STPSC30G12WLY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPSC30G12WLY is usually 5 days.

3.What payment methods are accepted for STPSC30G12WLY?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPSC30G12WLY transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPSC30G12WLY?

STPSC30G12WLY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPSC30G12WLY 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 STPSC30G12WLY?

For technical support, including STPSC30G12WLY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPSC30G12WLY requirements.

6.How does Aetrix verify that STPSC30G12WLY is sourced from the original manufacturer or authorized distributors?

All STPSC30G12WLY 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 STPSC30G12WLY meets industry standards.

7.What is the process for return or replacement of STPSC30G12WLY?

All STPSC30G12WLY units undergo pre-shipment inspection (PSI). If there is an issue with STPSC30G12WLY, 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 STPSC30G12WLY part is unused and in its original packaging.

Return procedure for STPSC30G12WLY:

1.Submit a request within 90 days.

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

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