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STMicroelectronics STPSC15H12DY
- Part No.:
- STPSC15H12DY
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
STPSC15H12DY.pdf
- Description:
- DIODE SIL CARB 1.2KV 15A TO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:990
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Product details
Overview
STPSC15H12DY from STMicroelectronics is an AEC-Q101-qualified 1200 V, 15 A average forward current silicon carbide Schottky rectifier in TO-220AC package, featuring 1.35 V typical forward voltage at 15 A and negligible reverse recovery, designed for high-efficiency PFC and secondary-side rectification in automotive and industrial power supplies.
For engineers reviewing the STPSC15H12DY datasheet, STPSC15H12DY pinout, STPSC15H12DY application, or STPSC15H12DY equivalent, key selection criteria include its temperature-independent switching behavior, 175 °C maximum junction temperature, low capacitive charge (94 nC at 800 V), and robust surge capability (105 A @ 10 ms).
Technical Context
This SiC Schottky diode replaces conventional silicon fast recovery diodes in hard-switching topologies by eliminating reverse recovery charge and associated ringing. Its wide band-gap material enables stable VF and IR over -40 °C to +175 °C, with junction-to-case thermal resistance as low as 0.45 °C/W.
The device operates with zero minority-carrier storage, delivering consistent dynamic performance across temperature and load. Its 1200 V blocking rating and 1200 pF junction capacitance at 0 V support high-voltage DC-link and resonant converter designs requiring low EMI and high efficiency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1200 V - supports DC-link voltages up to 800–1000 V in three-phase PFC and solar inverters |
| IF(AV) | 15 A - continuous conduction capability at TC = 155 °C, suitable for 500–800 W power stages |
| VF (typ.) | 1.35 V @ 15 A, 25 °C - reduces conduction loss vs. Si FRD (typically 2.0–2.5 V) |
| IR (max.) | 600 µA @ 150 °C, VR = 1200 V - ensures low leakage in high-temperature hold-up circuits |
| Qcj | 94 nC @ VR = 800 V - minimizes turn-off switching loss and EMI in hard-switched converters |
| Rth(j-c) | 0.45 °C/W (typ.) - enables direct heatsink mounting with <1.5 K/W total thermal path for 15 A operation |
| IFSM | 105 A @ 10 ms sinusoidal - withstands inrush and overload transients without degradation |
Pinout & Package
TO-220AC package: single-diode configuration with anode and cathode terminals on leads; case (tab) is electrically connected to cathode; requires 0.55 N·m torque for mounting screw.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input terminal for forward conduction | Connected to AC/switching node side in boost PFC or transformer secondary in LLC |
| Cathode (Lead 2) | Output terminal for forward conduction; electrically tied to metal tab | Serves as high-current return path and thermal interface to heatsink |
| Case/Tab | Cathode connection and thermal conduction surface | Must be electrically isolated from PCB ground unless system design permits cathode-referenced heatsinking |
Key Features
| Feature | Design Value |
|---|---|
| No reverse recovery charge (Qrr ≈ 0) | Eliminates switching loss spikes and snubber requirements in hard-switched topologies |
| Temperature-stable VF and IR | Forward voltage increases only ~0.4 V from 25 °C to 150 °C, enabling predictable loss modeling |
| AEC-Q101 qualification | Validated for automotive under-hood applications including on-board chargers and DC-DC converters |
| High Tj operation (−40 to +175 °C) | Enables compact thermal design without derating in enclosed industrial power supplies |
| PPAP-capable manufacturing | Supports full automotive production release with controlled process documentation and traceability |
Applications
| On-Board Charger (OBC) | Solar String Inverter |
|---|---|
Use Scenario: High-frequency boost PFC stage converting AC grid to 400–800 V DC bus. IC Role / Device Role / Timing Role: Primary rectifier handling 15 A average current at 100 kHz switching frequency. Use Value: Zero Qrr eliminates turn-off losses and allows higher switching frequency without efficiency penalty. | Use Scenario: Secondary-side synchronous rectification in isolated DC-DC stage of string inverter. IC Role / Device Role / Timing Role: Output rectifier operating at 50–100 kHz with 1200 V isolation barrier. Use Value: Low VF and stable IR ensure >98% conversion efficiency at full load and high ambient temperature. |
| Industrial UPS Rectifier | EV Fast-Charging Module |
Use Scenario: Input rectification in double-conversion UPS with active front-end topology. IC Role / Device Role / Timing Role: 1200 V-rated output diode in IGBT-based inverter stage feeding battery bank. Use Value: Robust surge rating (105 A, 10 ms) handles short-circuit fault currents during grid transients. | Use Scenario: DC-link clamping and freewheeling in 10–20 kW liquid-cooled charging modules. IC Role / Device Role / Timing Role: Bidirectional clamp diode in ANPC or T-type three-level converters. Use Value: Junction temperature stability up to 175 °C supports high-power density packaging with minimal thermal margin. |
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 |
|---|---|---|---|
| C3D15120D (Wolfspeed) | Same 1200 V/15 A rating; VF = 1.5 V (typ.) at 15 A; Rth(j-c) = 0.55 °C/W | Higher VF increases conduction loss by ~0.15 V; slightly lower thermal performance | Preferred where legacy Wolfspeed footprint compatibility is required |
| FFSH15120A (ON Semiconductor) | 1200 V/15 A; VF = 1.45 V (typ.); Qcj = 105 nC @ 800 V; Tj(max) = 175 °C | Higher capacitive charge increases turn-off loss in >100 kHz designs | Selected when ON's dual-diode package option supports interleaved PFC layouts |
Compared with C3D15120D and FFSH15120A, STPSC15H12DY offers the lowest typical VF (1.35 V) and best thermal resistance (0.45 °C/W), making it optimal for thermally constrained, high-efficiency PFC stages where conduction loss dominates.
Availability
STPSC15H12DY is available at Aetrix Electronics and suitable for on-board chargers, solar string inverters, industrial UPS systems, and EV fast-charging modules requiring stable component supply and automotive-grade reliability.
Supply support for STPSC15H12DY 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, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.
This device belongs to ST's STPSC family of automotive-qualified SiC Schottky diodes, engineered specifically for high-efficiency, high-reliability power conversion in harsh-temperature environments.
FAQ
Is STPSC15H12DY pin-compatible with standard TO-220AC silicon diodes?
Yes - it uses the industry-standard TO-220AC outline with anode and cathode leads in identical positions. The metal tab is cathode-connected, matching conventional rectifier layout. No PCB redesign is needed for drop-in replacement, though thermal and electrical validation is required due to differing VF and Qcj.
What is the maximum recommended case temperature for continuous 15 A operation?
The datasheet specifies IF(AV) = 15 A at TC = 155 °C under DC conditions. For reliable long-term operation, maintain TC ≤ 150 °C using a heatsink with ≤1.2 °C/W total thermal resistance (including interface and ambient rise), verified via thermal simulation or measurement under worst-case load.
Does STPSC15H12DY require a gate driver or external control signal?
No - it is a passive two-terminal power diode with no gate or control input. It conducts when anode voltage exceeds cathode voltage by >VF and blocks when reverse-biased up to 1200 V. Its operation is fully autonomous and requires no supporting circuitry beyond proper thermal and mechanical mounting.
Can STPSC15H12DY be used in parallel configurations for higher current?
Parallel operation is not recommended without individual current-sharing resistors or matched thermal paths. Unlike silicon diodes, SiC Schottky diodes have positive VF temperature coefficient, but manufacturing tolerances in VF (±0.15 V) and thermal coupling variations can cause imbalance. For >15 A, select a higher-current rated part such as STPSC20H12DY.
STPSC15H12DY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-2
- Packaging:
- Tube
- Product Status:
- Obsolete
- Technology:
- SiC (Silicon Carbide) Schottky
- Voltage - DC Reverse (Vr) (Max):
- 1200 V
- Current - Average Rectified (Io):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 15 A
- Speed:
- No Recovery Time > 500mA (Io)
- Reverse Recovery Time (trr):
- 0 ns
- Current - Reverse Leakage @ Vr:
- 90 µA @ 1200 V
- Capacitance @ Vr, F:
- 1200pF @ 0V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AC
- Operating Temperature - Junction:
- -40°C ~ 175°C
STPSC15H12DY FAQ
1.How can I place an order for STPSC15H12DY through Aetrix?
Please submit a Request for Quotation (RFQ) for STPSC15H12DY 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 STPSC15H12DY reliable?
The price and inventory of STPSC15H12DY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPSC15H12DY is usually 5 days.
3.What payment methods are accepted for STPSC15H12DY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPSC15H12DY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPSC15H12DY?
STPSC15H12DY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPSC15H12DY 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 STPSC15H12DY?
For technical support, including STPSC15H12DY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPSC15H12DY requirements.
6.How does Aetrix verify that STPSC15H12DY is sourced from the original manufacturer or authorized distributors?
All STPSC15H12DY 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 STPSC15H12DY meets industry standards.
7.What is the process for return or replacement of STPSC15H12DY?
All STPSC15H12DY units undergo pre-shipment inspection (PSI). If there is an issue with STPSC15H12DY, 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 STPSC15H12DY part is unused and in its original packaging.
Return procedure for STPSC15H12DY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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