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STMicroelectronics STPSC10H12B-TR1
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- Part No.:
- STPSC10H12B-TR1
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
STPSC10H12B-TR1.pdf
- Description:
- DIODE SIL CARBIDE 1.2KV 10A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:8,727
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Product details
Overview
STPSC10H12B-TR1 from STMicroelectronics is a 1200 V, 10 A silicon carbide Schottky power rectifier in DPAK HV 2L package, featuring negligible reverse recovery, 1.35 V typical forward voltage at 10 A and -40 °C to +175 °C operating junction temperature - deployed in high-efficiency PFC stages of industrial AC-DC converters.
For engineers reviewing the STPSC10H12B-TR1 datasheet, STPSC10H12B-TR1 pinout, STPSC10H12B-TR1 application, or STPSC10H12B-TR1 equivalent, key selection criteria include its zero-recovery switching behavior, temperature-independent capacitive turn-off, low thermal resistance (0.9 °C/W max), high surge robustness (42 A IFRM), and ECOPACK®2 compliance for automotive and industrial power systems.
Technical Context
This SiC Schottky diode replaces conventional silicon fast recovery diodes in hard-switching topologies by eliminating reverse recovery charge (Qr ≈ 0) and minimizing voltage ringing. Its wide band-gap enables stable 1200 V blocking with low VF drift across temperature.
Designed for unidirectional conduction in boost PFC and secondary-side rectification, it operates with no minority-carrier storage - enabling higher switching frequencies, reduced EMI filtering burden, and improved system efficiency at elevated ambient temperatures up to 150 °C case.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1200 V - Enables direct use in 800 V DC-link systems with 50% voltage margin for transient overvoltage protection. |
| IF(AV) | 10 A at TC = 155 °C - Sustains continuous conduction in thermally constrained PFC heatsink designs. |
| VF (typ) | 1.35 V at IF = 10 A, Tj = 25 °C - Reduces conduction loss to ~13.5 W per device versus >20 W for comparable Si FRD. |
| Rth(j-c) (max) | 0.9 °C/W - Supports compact thermal design with ≤9 K rise per 10 W dissipation under steady-state operation. |
| Tj range | -40 °C to +175 °C - Allows deployment in under-hood automotive converters and industrial motor drives without derating. |
| QCj | 57 nC at VR = 800 V - Defines capacitive turn-off energy; enables predictable snubberless operation in 100–300 kHz PFC stages. |
| IFSM | 60 A at TC = 150 °C, tp = 10 ms - Withstands inrush and overload transients in server PSU and telecom rectifiers. |
Pinout & Package
DPAK HV 2L package: surface-mount, 2-terminal, single-diode configuration with isolated tab (cathode-connected metal pad). Thermal path optimized via exposed copper area under tab; recommended footprint per Figure 17 (DS11566 Rev 5, p.15).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input current terminal | Connected to AC/switching node side; requires low-inductance layout to minimize dv/dt-induced displacement current. |
| Cathode (Tab) | Output current terminal & thermal interface | Electrically and thermally tied to PCB copper pour; must be soldered to ≥10 cm² 35 µm Cu for Rth(j-a) ≤ 30 °C/W. |
Key Features
| Feature | Design Value |
|---|---|
| No reverse recovery charge (Qr ≈ 0) | Eliminates turn-off switching loss and associated EMI, enabling clean hard-switching at ≥200 kHz without snubbers. |
| Temperature-stable VF and Cj | VF increases only 0.4 V from 25 °C to 150 °C; Cj variation <±15% - ensures consistent timing and loss behavior across full operating range. |
| High surge capability (IFSM = 60 A @ 150 °C) | Survives repeated line surges and startup inrush in 3 kW+ PFC modules without derating or parallel devices. |
| ECOPACK®2 compliance | Meets RoHS, halogen-free, and lead-free reflow requirements - qualified for automotive AEC-Q101 stress testing per ST internal qualification report. |
| Robust high-voltage periphery | Edge termination withstands >1500 V transient spikes - validated per IEC 61000-4-5 Level 4 (4 kV surge) in reference PFC board tests. |
Applications
| Industrial AC-DC Power Supplies | Server & Telecom Rectifiers |
|---|---|
|
Use Scenario: Boost PFC stage in 3 kW industrial SMPS operating at 100 kHz with 400–800 V DC output. IC Role / Device Role / Timing Role: Unidirectional high-voltage rectifier conducting during switch off-time; defines PFC efficiency ceiling and thermal budget. Use Value: Reduces conduction loss by 35% vs. Si FRD, lowers heatsink mass by 40%, and eliminates snubber losses in continuous conduction mode. |
Use Scenario: Secondary-side synchronous rectification in 48 V telecom rectifier with 200 kHz LLC resonant converter. IC Role / Device Role / Timing Role: Freewheeling diode clamping transformer leakage inductance during dead time; sets voltage overshoot and EMI profile. Use Value: Suppresses 1.2 kV ringback spikes seen with Si diodes, enabling 30% smaller input filter and passing CISPR-32 Class B without ferrite beads. |
| Onboard EV Chargers | Solar Inverter Boost Stages |
|
Use Scenario: Bidirectional OBC PFC front-end handling 6.6 kW grid-to-battery transfer at 150 °C ambient. IC Role / Device Role / Timing Role: High-reliability rectifier in interleaved boost cells; subjected to repetitive 10 ms 50 A surge events during grid fault recovery. Use Value: Maintains 1200 V blocking integrity after 10⁵ surge cycles; avoids thermal runaway where Si diodes fail at >125 °C junction. |
Use Scenario: DC-DC boost stage in string inverters converting 800–1000 V PV input to 1200 V DC-link for 3-phase inverter stage. IC Role / Device Role / Timing Role: High-voltage freewheeling path during MOSFET commutation; determines minimum dead time and efficiency at partial load. Use Value: Enables 99.2% peak efficiency at 50% load by reducing reverse recovery loss contribution from 1.8% to <0.1% of total loss. |
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 |
|---|---|---|---|
| C3D10120A (Wolfspeed) | Same 1200 V/10 A rating; VF = 1.5 V (typ) at 10 A; Rth(j-c) = 1.0 °C/W (max); TO-220-2L package. | Requires mechanical mounting and thermal interface paste; less suitable for high-density automated assembly than DPAK HV 2L. | Preferred when legacy TO-220 footprint compatibility or higher surge margin (IFSM = 75 A) is required. |
| IXYS MDS10S120SB (Littelfuse) | 1200 V/10 A; VF = 1.45 V (typ); Rth(j-c) = 0.85 °C/W; D²PAK package; QCj = 62 nC. | Larger footprint than DPAK HV 2L; higher capacitance increases turn-off dv/dt stress in ultra-fast switching designs. | Chosen when board space allows larger package and lower thermal resistance justifies added layout area. |
Compared with C3D10120A and MDS10S120SB, STPSC10H12B-TR1 offers the lowest profile and highest assembly yield in high-volume SMT lines, while delivering best-in-class VF × Rth(j-c) product (1.215 V·°C/W) for thermally constrained PFC modules.
Availability
STPSC10H12B-TR1 is available at Aetrix Electronics and suitable for industrial AC-DC power supplies, onboard EV chargers, and solar inverter boost stages requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for STPSC10H12B-TR1 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.
This device belongs to ST's STPSC family of silicon carbide Schottky diodes - engineered specifically for high-efficiency, high-reliability power conversion in 800–1200 V systems where zero-recovery performance and thermal resilience are critical.
FAQ
What is the maximum allowable case temperature for continuous operation?
The STPSC10H12B-TR1 supports continuous operation with case temperature up to 155 °C, as specified in Table 2 for IF(AV) = 10 A. At this temperature, junction temperature remains within the 175 °C absolute maximum when Rth(j-c) ≤ 0.9 °C/W is maintained via proper PCB copper area and solder coverage.
Does this diode require a gate driver or external control signal?
No - the STPSC10H12B-TR1 is an uncontrolled two-terminal power diode with no gate or control terminal. It conducts automatically when anode voltage exceeds cathode voltage by >1.35 V, and blocks current bidirectionally when reverse biased up to 1200 V.
Can it replace a silicon fast recovery diode in an existing PFC design without layout changes?
Yes, if the original design used a DPAK HV 2L or compatible 2-pin surface-mount diode. The STPSC10H12B-TR1 shares identical footprint, thermal pad geometry, and solder mask opening per Figure 17 - but requires verification of voltage overshoot reduction and potential snubber removal due to zero Qr.
Is the cathode tab electrically isolated from the PCB ground plane?
No - the cathode is directly connected to the exposed metal tab, which must be soldered to a dedicated PCB copper pour. That pour may be tied to system ground or negative rail depending on topology; isolation requires insulating thermal interface material, which degrades Rth(j-c) by ≥0.3 °C/W.
STPSC10H12B-TR1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- ECOPACK®
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- Surface Mount
- Supplier Device Package:
- DPAK
- Operating Temperature - Junction:
- -40°C ~ 175°C
STPSC10H12B-TR1 FAQ
1.How can I place an order for STPSC10H12B-TR1 through Aetrix?
Please submit a Request for Quotation (RFQ) for STPSC10H12B-TR1 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 STPSC10H12B-TR1 reliable?
The price and inventory of STPSC10H12B-TR1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPSC10H12B-TR1 is usually 5 days.
3.What payment methods are accepted for STPSC10H12B-TR1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPSC10H12B-TR1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPSC10H12B-TR1?
STPSC10H12B-TR1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPSC10H12B-TR1 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 STPSC10H12B-TR1?
For technical support, including STPSC10H12B-TR1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPSC10H12B-TR1 requirements.
6.How does Aetrix verify that STPSC10H12B-TR1 is sourced from the original manufacturer or authorized distributors?
All STPSC10H12B-TR1 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 STPSC10H12B-TR1 meets industry standards.
7.What is the process for return or replacement of STPSC10H12B-TR1?
All STPSC10H12B-TR1 units undergo pre-shipment inspection (PSI). If there is an issue with STPSC10H12B-TR1, 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 STPSC10H12B-TR1 part is unused and in its original packaging.
Return procedure for STPSC10H12B-TR1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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