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STMicroelectronics STPSC2H12D
- Part No.:
- STPSC2H12D
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
STPSC2H12D.pdf
- Description:
- DIODE SIL CARB 1.2KV 2A TO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,271
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Product details
Overview
STPSC2H12D from STMicroelectronics is a 1200 V, 2 A average forward current silicon carbide Schottky rectifier in TO-220AC package, featuring negligible reverse recovery, 1.35 V typical forward voltage at 25 °C, and operation up to 175 °C junction temperature. It is designed for high-efficiency PFC and secondary-side rectification in hard-switching power supplies.
For engineers reviewing the STPSC2H12D datasheet, STPSC2H12D pinout, STPSC2H12D application, or STPSC2H12D equivalent, key selection criteria include its zero-recovery behavior, temperature-stable switching, low thermal resistance (2.7 °C/W max), high surge robustness (15 A non-repetitive), and ECOPACK®2 compliance for industrial and energy infrastructure designs.
Technical Context
This SiC Schottky diode replaces conventional silicon fast/ultrafast rectifiers in high-voltage, high-frequency AC-DC and DC-DC converters. Its wide band-gap material enables a 1200 V blocking rating with low VF and near-zero Qrr-eliminating reverse recovery losses and associated EMI.
The device exhibits temperature-invariant capacitive turn-off behavior (Cj = 190 pF at 0 V, 13 pF at 800 V) and minimal reverse leakage (<80 µA at 150 °C, VR = VRRM). Thermal performance is optimized via low Rth(j-c) (1.9–2.7 °C/W), supporting high-power density layouts with conduction-cooled mounting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1200 V - Enables use in 800 V DC bus systems with 50% safety margin |
| IF(AV) | 2 A at TC = 160 °C - Sustains continuous conduction in compact heatsinked PFC stages |
| VF(typ.) | 1.35 V at IF = 2 A, Tj = 25 °C - Reduces conduction loss vs. Si counterparts by ~30% |
| Rth(j-c) | 2.7 °C/W max - Allows direct case-to-heatsink thermal path without thermal interface pads in many designs |
| IR(max) | 80 µA at Tj = 150 °C, VR = VRRM - Ensures stable blocking under high-temp transient conditions |
| Qcj | 15.6 nC at VR = 800 V - Predictable capacitive charge simplifies snubber design and EMI filtering |
| Tj(max) | 175 °C - Supports operation in sealed enclosures or high-ambient industrial environments |
Pinout & Package
STPSC2H12D uses the TO-220AC package: single-piece molded epoxy body with isolated metal tab (anode connection), 3-pin outline (2 active terminals + mounting tab), UL94 V0 rated, and recommended torque of 0.55 N·m.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Tab) | High-current anode terminal / thermal path | Electrically and thermally connected to metal tab; must be electrically isolated from heatsink unless circuit topology permits common-anode mounting |
| Cathode (Lead 2) | Output cathode connection | Carries full forward current; PCB trace width must support ≥10 A RMS per layout guidelines |
| No-Connect (Lead 1) | Non-functional lead | Mechanical support only; not internally connected; may be trimmed or left unconnected |
Key Features
| Feature | Design Value |
|---|---|
| No reverse recovery (Qrr ≈ 0) | Eliminates turn-off switching loss and associated voltage overshoot/ringing in hard-switched topologies |
| Temperature-stable VF and Cj | Forward voltage rise <0.4 V from 25 °C to 150 °C; capacitance shift predictable across operating range |
| 175 °C maximum junction temperature | Enables derating-free operation in ambient >85 °C environments when properly heatsinked |
| ECOPACK®2 compliance | Meets RoHS, halogen-free, and lead-free soldering requirements without compromising thermal or electrical performance |
| High IFSM (15 A, 10 ms) | Withstands inrush and fault currents in offline SMPS and solar inverters without degradation |
Applications
| Industrial PFC Boost Stage | Solar Inverter DC-Link Clamp |
|---|---|
Use Scenario: Active boost PFC stage in 1–3 kW industrial AC-DC power supplies operating at 65–100 kHz. IC Role / Device Role / Timing Role: High-voltage output rectifier replacing Si ultrafast diodes to reduce switching loss and improve efficiency >96%. Use Value: Zero Qrr eliminates need for snubbers; 1.35 V VF cuts conduction loss by 25% vs. Si at 2 A, lowering heatsink size by 30%. | Use Scenario: DC-link clamping diode in three-phase string inverters handling 1000 V DC bus transients. IC Role / Device Role / Timing Role: Freewheeling/clamp path during IGBT commutation, absorbing reactive energy without recovery spikes. Use Value: Stable 1200 V VRRM and <80 µA IR at 150 °C ensure reliable clamping during sustained overtemperature events. |
| Server PSU Secondary Rectification | EV Onboard Charger Output Stage |
Use Scenario: +12 V output synchronous rectification auxiliary path in 2 kW telecom/server PSUs. IC Role / Device Role / Timing Role: OR-ing or freewheel diode in LLC resonant converter secondary, operating at 300–500 kHz. Use Value: Low Cj (13 pF @ 800 V) minimizes displacement current; no reverse recovery avoids cross-conduction risk with synchronous MOSFETs. | Use Scenario: Output rectifier in 6.6 kW bidirectional OBC handling 400–800 V battery charging profiles. IC Role / Device Role / Timing Role: Unidirectional output rectifier in dual-active-bridge (DAB) isolated DC-DC stage. Use Value: 175 °C Tj rating supports operation inside sealed OBC enclosures; 2.7 °C/W Rth(j-c) enables direct tab-mounting to chassis ground plane. |
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 |
|---|---|---|---|
| C3D02120E (Wolfspeed) | Same 1200 V/2 A rating; VF = 1.5 V typ. at 2 A; Rth(j-c) = 3.0 °C/W; D2PAK package | Requires different footprint and thermal interface; slightly higher conduction loss | Preferred where D2PAK board space and reflow compatibility are prioritized over lowest VF |
| FFSD02120A (onsemi) | 1200 V/2 A; VF = 1.45 V typ.; Rth(j-c) = 2.5 °C/W; TO-220AC package; lower IR (20 µA @ 150 °C) | Superior leakage performance; identical mechanical fit for drop-in replacement evaluation | Best choice when system-level leakage sensitivity dominates over marginal VF advantage |
Compared with STPSC2H12D, C3D02120E trades lower VF for higher thermal resistance and different packaging, while FFSD02120A offers tighter leakage control and matching TO-220AC form factor-making it the most viable direct-layout alternative for leakage-critical 175 °C applications.
Availability
STPSC2H12D is available at Aetrix Electronics and suitable for industrial PFC modules, solar inverter clamp circuits, server PSU secondary stages, and EV onboard charger output rectification requiring stable component supply across multi-year production cycles.
Supply support for STPSC2H12D 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 microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
The STPSC series belongs to ST's silicon carbide power diode product line, engineered specifically for high-efficiency, high-reliability rectification in 600–1700 V applications where zero-recovery behavior and temperature stability are critical.
FAQ
Is STPSC2H12D suitable for synchronous rectification topologies?
No-STPSC2H12D is a unidirectional Schottky diode, not a controllable switch. It serves as a passive rectifier or freewheeling element. For synchronous rectification, discrete MOSFETs or integrated SR controllers (e.g., STSR3) must be used in conjunction with this diode's voltage/current ratings as reference.
What is the maximum recommended mounting torque for the TO-220AC tab?
The datasheet specifies a recommended torque of 0.55 N·m and a maximum torque of 0.7 N·m for the STPSC2H12D TO-220AC mounting screw. Exceeding 0.7 N·m risks cracking the package or degrading thermal interface integrity, directly impacting Rth(j-c) and long-term reliability.
Does STPSC2H12D require a gate resistor or external driver?
No-STPSC2H12D has no gate terminal and is a passive two-terminal device. Unlike MOSFETs or IGBTs, it requires no drive circuitry. Its switching behavior is fully determined by circuit voltage/current and intrinsic SiC material properties, with no control signal needed.
Can STPSC2H12D replace a 1200 V Si fast recovery diode in an existing design?
Yes-with verification of thermal interface, layout creepage, and transient voltage margins. The STPSC2H12D offers lower VF, zero Qrr, and higher Tj, but its lower Cj and absence of reverse recovery alter snubber and EMI behavior. Layout review and empirical testing under worst-case load transients are required before qualification.
STPSC2H12D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- ECOPACK®2
- Package/Case:
- TO-220-2
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- SiC (Silicon Carbide) Schottky
- Voltage - DC Reverse (Vr) (Max):
- 1200 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 2 A
- Speed:
- No Recovery Time > 500mA (Io)
- Reverse Recovery Time (trr):
- 0 ns
- Current - Reverse Leakage @ Vr:
- 12 µA @ 1200 V
- Capacitance @ Vr, F:
- 190pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AC
- Operating Temperature - Junction:
- -40°C ~ 175°C
STPSC2H12D FAQ
1.How can I place an order for STPSC2H12D through Aetrix?
Please submit a Request for Quotation (RFQ) for STPSC2H12D 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 STPSC2H12D reliable?
The price and inventory of STPSC2H12D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPSC2H12D is usually 5 days.
3.What payment methods are accepted for STPSC2H12D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPSC2H12D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPSC2H12D?
STPSC2H12D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPSC2H12D 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 STPSC2H12D?
For technical support, including STPSC2H12D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPSC2H12D requirements.
6.How does Aetrix verify that STPSC2H12D is sourced from the original manufacturer or authorized distributors?
All STPSC2H12D 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 STPSC2H12D meets industry standards.
7.What is the process for return or replacement of STPSC2H12D?
All STPSC2H12D units undergo pre-shipment inspection (PSI). If there is an issue with STPSC2H12D, 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 STPSC2H12D part is unused and in its original packaging.
Return procedure for STPSC2H12D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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