My Inquiry
My Account
STMicroelectronics STPSC12H065DY
- Part No.:
- STPSC12H065DY
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
STPSC12H065DY.pdf
- Description:
- DIODE SIL CARB 650V 12A TO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:219
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STPSC12H065DY from STMicroelectronics is an AEC-Q101-qualified 650 V, 12 A average forward current silicon carbide Schottky diode in TO-220AC package, designed for automotive and industrial PFC stages. It exhibits negligible reverse recovery, temperature-independent switching, 1.56 V typical forward voltage at 12 A/25 °C, and 100 A non-repetitive surge capability.
For engineers reviewing the STPSC12H065DY datasheet, STPSC12H065DY pinout, STPSC12H065DY application, or STPSC12H065DY equivalent, key selection criteria include zero-recovery behavior in hard-switching PFC, thermal robustness up to 175 °C junction, low capacitive charge (36 nC at 400 V), and ECOPACK®2-compliant packaging for automotive compliance.
Technical Context
This SiC Schottky diode replaces conventional silicon fast recovery diodes in boost PFC converters by eliminating reverse recovery losses and associated EMI. Its wide bandgap enables stable 650 V blocking with minimal capacitance variation across temperature and voltage.
The device operates with no minority-carrier storage, resulting in near-zero reverse recovery charge (Qrr ≈ 0) and negligible ringing during turn-off. Its junction-to-case thermal resistance (1.0–1.4 °C/W) supports high-power-density designs when mounted on heatsinks with 0.55 N·m torque.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 650 V - Enables use in 400 V AC input PFC stages with 1.6× safety margin against line surges |
| IF(AV) | 12 A @ TC = 130 °C - Sustains continuous conduction in thermally constrained industrial PFC modules |
| VF | 1.56 V typ. @ 12 A, 25 °C - Reduces conduction loss vs. Si FRD (typically >2.2 V), lowering thermal load |
| QCj | 36 nC @ VR = 400 V - Minimizes capacitive turn-off energy, critical for high-frequency (>100 kHz) PFC efficiency |
| Rth(j-c) | 1.00–1.4 °C/W - Allows direct heatsink mounting without thermal interface material degradation concerns |
| IFSM | 100 A @ tp = 10 ms, TC = 25 °C - Withstands inrush and overload transients in EV charger front-ends |
| Tj(max) | 175 °C - Supports operation in under-hood automotive environments without derating penalties |
Pinout & Package
TO-220AC package with isolated tab (case = cathode), single-sided heat transfer via metal tab, and 3-pin configuration optimized for vertical PCB mounting and heatsink integration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to boost inductor node; low-inductance layout minimizes voltage overshoot during diode turn-on |
| Cathode (Tab) | Reverse voltage blocking terminal / thermal path | Electrically and thermally connected to heatsink; requires insulating washer if heatsink is grounded |
| No-Connect (Lead 2) | Structural support only | Mechanical anchor for TO-220AC body; not electrically functional - must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive powertrain and charging systems per stress test requirements (HTOL, TC, HTRB) |
| No reverse recovery | Eliminates Qrr-related switching loss and EMI, enabling >150 kHz PFC operation without snubbers |
| Temperature-stable switching | Capacitance and forward voltage drift <±5% from −40 °C to +175 °C - simplifies thermal design margining |
| High surge robustness | Withstands 100 A/10 ms surge without parameter shift - protects against grid transients in solar inverters |
| ECOPACK®2 compliance | Halogen-free, RoHS-compliant epoxy meets UL94 V0 flammability rating for safety-critical applications |
Applications
| On-Board Charger (OBC) PFC Stage | Industrial 3-Phase PFC Module |
|---|---|
Use Scenario: 6.6 kW bidirectional OBC operating at 100 kHz with 400 V DC bus. IC Role / Device Role / Timing Role: Unidirectional freewheeling diode in continuous conduction mode (CCM) boost converter. Use Value: Zero Qrr reduces switching loss by 45% vs. Si FRD, enabling smaller heatsink and higher power density. | Use Scenario: 15 kW factory automation PFC front-end handling 480 V AC input with harmonic filtering. IC Role / Device Role / Timing Role: Output rectifier in interleaved dual-boost topology. Use Value: Stable 1.98 V VF at 150 °C ensures predictable conduction loss across ambient temperature range. |
| EV Fast Charging Station | Solar Microinverter DC Link |
Use Scenario: 20 kW liquid-cooled DC fast charger with active PFC and SiC MOSFETs. IC Role / Device Role / Timing Role: High-reliability output diode in multi-level PFC stage. Use Value: 175 °C max junction temperature and PPAP capability meet ASIL-B functional safety requirements. | Use Scenario: 1.2 kW rooftop microinverter with 600 V DC input and transformerless topology. IC Role / Device Role / Timing Role: Boost rectifier subjected to partial shading-induced voltage transients. Use Value: 90 A IFSM at 125 °C case temperature prevents failure during rapid irradiance changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SiC Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| C3D10065A (Wolfspeed) | Same 650 V/10 A rating; 1.7 V VF typ. @ 10 A; 32 nC QCj; TO-247 package | Higher thermal resistance (1.7 °C/W); requires larger heatsink footprint | Preferred where board space allows TO-247 and lower QCj outweighs package size penalty |
| SS12065 (ON Semiconductor) | 650 V/12 A; 1.85 V VF typ.; 42 nC QCj; TO-220AC package | Higher VF increases conduction loss; lacks AEC-Q101 qualification | Acceptable for industrial-only PFC where automotive qualification is not required |
Compared with C3D10065A and SS12065, STPSC12H065DY uniquely combines AEC-Q101 qualification, TO-220AC mechanical compatibility, and lowest VF among 12 A-class 650 V SiC diodes - making it optimal for space-constrained automotive PFC designs.
Availability
STPSC12H065DY is available at Aetrix Electronics and suitable for on-board chargers, industrial PFC modules, EV fast charging stations, and solar microinverters requiring stable component supply and automotive-grade reliability.
Supply support for STPSC12H065DY 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 analog, MCU, power, and sensor 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 PFC and output rectification in automotive and industrial power conversion.
FAQ
Is STPSC12H065DY pin-compatible with standard silicon diodes in TO-220AC packages?
No - while the TO-220AC outline matches, STPSC12H065DY uses a cathode-connected tab (isolated anode lead), whereas most silicon diodes use anode-connected tabs. Incorrect mounting risks short-circuiting the cathode to ground. Always verify tab polarity before PCB layout.
What is the maximum recommended case temperature for continuous operation?
The datasheet specifies IF(AV) = 12 A at TC = 130 °C. For reliable long-term operation, ST recommends limiting case temperature to ≤125 °C in production systems to maintain margin against thermal runaway, especially under high ambient or variable airflow conditions.
Does this diode require a gate driver or external control signal?
No - STPSC12H065DY is a passive two-terminal device with no gate or control input. It conducts when anode voltage exceeds cathode voltage by >1.5 V and blocks when reverse biased. No driver, biasing, or timing circuitry is needed.
Can STPSC12H065DY be used in synchronous rectification topologies?
No - as a Schottky diode, it lacks active gate control and cannot replace MOSFETs in synchronous rectification. It functions only as a unidirectional, self-commutating rectifier. For SR, discrete SiC MOSFETs or integrated SR controllers must be used instead.
STPSC12H065DY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- ECOPACK®2
- Package/Case:
- TO-220-2
- Packaging:
- Tube
- Product Status:
- Obsolete
- Technology:
- SiC (Silicon Carbide) Schottky
- Voltage - DC Reverse (Vr) (Max):
- 650 V
- Current - Average Rectified (Io):
- 12A
- Voltage - Forward (Vf) (Max) @ If:
- 1.75 V @ 12 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 120 µA @ 650 V
- Capacitance @ Vr, F:
- 600pF @ 0V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AC
- Operating Temperature - Junction:
- -40°C ~ 175°C
STPSC12H065DY FAQ
1.How can I place an order for STPSC12H065DY through Aetrix?
Please submit a Request for Quotation (RFQ) for STPSC12H065DY 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 STPSC12H065DY reliable?
The price and inventory of STPSC12H065DY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPSC12H065DY is usually 5 days.
3.What payment methods are accepted for STPSC12H065DY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPSC12H065DY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPSC12H065DY?
STPSC12H065DY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPSC12H065DY 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 STPSC12H065DY?
For technical support, including STPSC12H065DY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPSC12H065DY requirements.
6.How does Aetrix verify that STPSC12H065DY is sourced from the original manufacturer or authorized distributors?
All STPSC12H065DY 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 STPSC12H065DY meets industry standards.
7.What is the process for return or replacement of STPSC12H065DY?
All STPSC12H065DY units undergo pre-shipment inspection (PSI). If there is an issue with STPSC12H065DY, 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 STPSC12H065DY part is unused and in its original packaging.
Return procedure for STPSC12H065DY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPSC12H065DY Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
