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

STMicroelectronics STPSC10H12WL

Name: STPSC10H12WL
Brand: STMicroelectronics
SKU: STPSC10H12WL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPSC10H12WL

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: DO-247-2 (Straight Leads)

Datasheet:: STPSC10H12WL.pdf

Description:: DIODE SIL CARB 1.2KV 10A DO247

Quantity:: RFQ Add To RFQ list

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Inventory:244

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Product details

Overview

STPSC10H12WL from STMicroelectronics is a 1200 V, 10 A silicon carbide Schottky power rectifier in DO-247 LL package, designed for high-efficiency PFC and secondary-side rectification in industrial SMPS and solar inverters. It delivers no reverse recovery, 1.35 V typical forward voltage at 10 A, and operates from –40 °C to +175 °C junction temperature.

For engineers reviewing the STPSC10H12WL datasheet, STPSC10H12WL pinout, STPSC10H12WL application, or STPSC10H12WL equivalent, this SiC diode is selected for hard-switching topologies requiring zero-recovery loss, low capacitive charge (57 nC), and robust surge capability (60 A @ TC = 150 °C, tp = 10 ms).

Technical Context

This SiC Schottky diode replaces conventional silicon fast recovery diodes in high-voltage, high-frequency switching applications. Its wide band-gap material enables stable VF vs. temperature behavior and eliminates minority-carrier storage delay - confirmed by negligible ringing and <60 µA reverse leakage at 1200 V and 25 °C.

The device exhibits temperature-independent switching characteristics: total capacitive charge remains at 57 nC (typ.) up to 800 V reverse bias, and junction-to-case thermal resistance is 0.70 °C/W (typ.), enabling reliable operation under sustained 10 A DC conduction with minimal thermal derating.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1200 V - supports 800–1000 V DC bus designs with ≥20 % margin against transients in solar string inverters and EV chargers.
I_F(AV)	10 A @ T_C = 150 °C - rated for continuous conduction in TO-247-equivalent footprint without forced air cooling.
V_F (typ)	1.35 V @ I_F = 10 A, T_j = 25 °C - reduces conduction loss by ~35 % vs. comparable Si FRD, lowering heatsink requirements.
Q_CJ (typ)	57 nC @ V_R = 800 V - minimizes turn-off energy loss and EMI generation in 50–100 kHz PFC stages.
R_th(j-c) (typ)	0.70 °C/W - enables 175 °C max junction operation with ≤20 K rise over case at full load, simplifying thermal design.
I_FSM	60 A @ t_p = 10 ms, T_C = 150 °C - withstands inrush and overload surges in industrial UPS and motor drives.

Pinout & Package

STPSC10H12WL uses the DO-247 LL package - a high-power, surface-mount-compatible variant of the industry-standard DO-247 outline, optimized for low-inductance layout and high thermal conductivity via copper tab mounting. The package features two terminals: anode and cathode, with the metal tab electrically connected to the cathode.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to AC/switching node side; must be routed with low-inductance trace to minimize voltage overshoot during di/dt events.
Cathode (Tab)	Forward current exit / thermal path	Electrically tied to cathode; serves as primary heat dissipation path - requires direct thermal interface to PCB copper pour or heatsink.

Key Features

Feature	Design Value
No reverse recovery	Eliminates reverse recovery charge (Q_rr = 0) and associated switching losses - verified across –40 °C to +175 °C.
Temperature-stable switching	Capacitive turn-off behavior and VF drift remain consistent; Q_CJ varies <±5 % from 25 °C to 150 °C.
High surge robustness	60 A non-repetitive surge rating at 150 °C case temperature ensures reliability during line transients and startup surges.
Wide operating temperature	Rated for continuous operation from –40 °C to +175 °C junction temperature - suitable for under-hood automotive and industrial environments.
ECOPACK®2 compliance	Halogen-free, RoHS-compliant construction with UL94 V0 epoxy - meets stringent environmental and safety requirements for global deployments.

Applications

Industrial Solar Inverters

Server & Telecom SMPS

Use Scenario: Boost PFC stage in 1000 V DC-link solar string inverters operating at 70–100 kHz.

IC Role / Device Role / Timing Role: High-voltage output rectifier replacing Si FRD to eliminate Q_rr-related losses and reduce snubber complexity.

Use Value: Enables >98.5 % system efficiency at full load and reduces heatsink volume by 40 % versus Si alternatives.

Use Scenario: Output rectification in 48 V intermediate bus converters powering ASICs and FPGAs.

IC Role / Device Role / Timing Role: Secondary-side freewheeling diode in synchronous rectified LLC resonant converters.

Use Value: Delivers zero-recovery loss during dead-time transitions, improving light-load efficiency and reducing EMI filtering cost.

EV Onboard Chargers

Industrial UPS Systems

Use Scenario: AC/DC front-end PFC in bidirectional OBCs handling 6.6 kW at 1200 V DC-link.

IC Role / Device Role / Timing Role: Fast-recovery replacement for SiC MOSFET body diode in totem-pole PFC configurations.

Use Value: Supports continuous 10 A conduction with <1.5 V VF at 150 °C, minimizing conduction loss and thermal stress on gate drivers.

Use Scenario: DC-link clamping and regeneration path in three-phase double-conversion UPS systems.

IC Role / Device Role / Timing Role: High-surge-capability freewheeling diode in IGBT-based inverter legs.

Use Value: Withstands 60 A surge at 150 °C case temperature, ensuring fault tolerance during grid faults and battery reconnection events.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage SiC Schottky diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
C4D10120A (Wolfspeed)	Same 1200 V / 10 A rating; VF = 1.55 V (typ.) at 10 A; R_th(j-c) = 0.85 °C/W; DO-247 package.	Slightly higher VF increases conduction loss by ~15 %; lower thermal conductivity may require larger copper area.	Preferred where supply chain diversification is required and 0.2 V VF penalty is acceptable for identical footprint.
SS12120 (Littelfuse)	1200 V / 10 A; VF = 1.45 V (typ.); R_th(j-c) = 0.75 °C/W; TO-247-2L package (not surface-mount compatible).	TO-247 through-hole mounting limits PCB density; higher thermal resistance than STPSC10H12WL's DO-247 LL.	Only suitable when legacy TO-247 layout exists and surface-mount assembly is not feasible.

Compared with C4D10120A and SS12120, STPSC10H12WL offers the lowest VF (1.35 V), best thermal resistance (0.70 °C/W), and native surface-mount DO-247 LL footprint - delivering superior power density and efficiency in space-constrained, high-reliability industrial converters.

Availability

STPSC10H12WL is available at Aetrix Electronics and suitable for industrial solar inverters, EV onboard chargers, and telecom SMPS requiring stable component supply, long-lifecycle support, and ECOPACK®2-compliant sourcing.

Supply support for STPSC10H12WL 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, specializing in power, analog, MEMS, and microcontroller technologies for industrial, automotive, and consumer markets.

STPSC10H12WL belongs to ST's STPSC family of silicon carbide Schottky diodes - engineered specifically for high-efficiency, high-reliability power conversion in 1200 V-class systems where zero-recovery loss and thermal resilience are critical.

FAQ

Is STPSC10H12WL a unidirectional or bidirectional device?

STPSC10H12WL is a unidirectional silicon carbide Schottky rectifier. It conducts only from anode to cathode under forward bias and blocks up to 1200 V in reverse. Unlike bipolar devices, it has no minority-carrier injection and cannot conduct in reverse - confirmed by <60 µA leakage at rated V_RRM.

What is the maximum recommended soldering temperature for DO-247 LL package?

The DO-247 LL package is qualified for standard lead-free reflow per J-STD-020: peak temperature of 260 °C for ≤30 seconds, with ramp rates ≤3 °C/s. ST specifies a maximum board-side temperature of 245 °C at the tab center during reflow to avoid epoxy degradation while maintaining UL94 V0 compliance.

Can STPSC10H12WL replace a silicon fast recovery diode in an existing PFC design?

Yes - STPSC10H12WL can directly replace 1200 V Si FRDs in boost PFC stages without circuit modification. Its zero Q_rr eliminates snubber networks, reduces EMI filter size, and improves efficiency by 0.5–1.2 % at full load. Layout must ensure low-inductance cathode routing due to its high di/dt capability.

Does STPSC10H12WL require a gate driver or external control signal?

No. STPSC10H12WL is a passive two-terminal power diode with no gate or control terminal. It operates autonomously based on applied voltage polarity and magnitude - forward conduction begins at ~1.35 V, and reverse blocking is maintained up to 1200 V without auxiliary circuitry.

STPSC10H12WL Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: ECOPACK®2

Package/Case:: DO-247-2 (Straight Leads)

Packaging:: Tube

Product Status:: Active

Technology:: SiC (Silicon Carbide) Schottky

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

Current - Average Rectified (Io):: 10A

Voltage - Forward (Vf) (Max) @ If:: 1.5 V @ 10 A

Speed:: No Recovery Time > 500mA (Io)

Reverse Recovery Time (trr):: 0 ns

Current - Reverse Leakage @ Vr:: 60 µA @ 1200 V

Capacitance @ Vr, F:: 725pF @ 0V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-247

Operating Temperature - Junction:: -40°C ~ 175°C

STPSC10H12WL FAQ

1.How can I place an order for STPSC10H12WL through Aetrix?

Please submit a Request for Quotation (RFQ) for STPSC10H12WL 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 STPSC10H12WL reliable?

The price and inventory of STPSC10H12WL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPSC10H12WL is usually 5 days.

3.What payment methods are accepted for STPSC10H12WL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPSC10H12WL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPSC10H12WL?

STPSC10H12WL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPSC10H12WL 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 STPSC10H12WL?

For technical support, including STPSC10H12WL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPSC10H12WL requirements.

6.How does Aetrix verify that STPSC10H12WL is sourced from the original manufacturer or authorized distributors?

All STPSC10H12WL 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 STPSC10H12WL meets industry standards.

7.What is the process for return or replacement of STPSC10H12WL?

All STPSC10H12WL units undergo pre-shipment inspection (PSI). If there is an issue with STPSC10H12WL, 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 STPSC10H12WL part is unused and in its original packaging.

Return procedure for STPSC10H12WL:

1.Submit a request within 90 days.

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

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