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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

STMicroelectronics STPSC20H065CTY

Name: STPSC20H065CTY
Brand: STMicroelectronics
SKU: STPSC20H065CTY
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPSC20H065CTY

Manufacturer:: STMicroelectronics

Category:: Diode Arrays

Package:: TO-220-3

Datasheet:: STPSC20H065CTY.pdf

Description:: DIODE ARRAY SIC 650V 10A TO-220

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Product details

Overview

STPSC20H065CTY from STMicroelectronics is an automotive-grade 650 V, 2 × 10 A dual silicon carbide Schottky diode in TO-220AB package, designed for hard-switching PFC stages in on-board chargers and DC-DC converters. It delivers negligible reverse recovery, temperature-independent switching, and 175 °C maximum junction temperature with AEC-Q101 qualification.

For engineers reviewing the STPSC20H065CTY datasheet, STPSC20H065CTY pinout, STPSC20H065CTY application, or STPSC20H065CTY equivalent, key selection criteria include its 650 V V_RRM, dual-diode thermal coupling behavior, 1.56 V typical forward voltage at 10 A/25 °C, and TO-220AB mechanical footprint compatibility with legacy silicon rectifier layouts.

Technical Context

This dual SiC Schottky diode integrates two independent 650 V, 10 A (T_c = 135 °C) diodes in a single TO-220AB package with shared case thermal path. Its wide-bandgap construction eliminates minority-carrier storage, enabling zero reverse recovery charge (Q_rr ≈ 0) and minimal capacitive turn-off ringing across –40 to +175 °C operating range.

The device is optimized for continuous conduction mode (CCM) PFC where high-frequency switching (>65 kHz), low EMI, and thermal robustness under surge conditions are critical. Its 90 A non-repetitive surge rating (t_p = 10 ms, T_c = 25 °C) and 470 A capability at t_p = 10 µs support transient overload resilience without derating.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	650 V - Enables direct use in 400 V DC-link PFC stages with 50%+ voltage margin against transients.
I_F(AV) per diode	10 A at T_c = 135 °C - Sustains continuous 20 A total average current with proper heatsinking and thermal management.
V_F typ.	1.56 V at I_F = 10 A, T_j = 25 °C - Reduces conduction loss by ~30% vs. comparable Si fast recovery diodes in same package.
R_th(j-c) per diode	1.5 °C/W max - Supports ≤15 W dissipation per diode before exceeding 175 °C junction limit at 135 °C case.
I_FSM	90 A (10 ms, T_c = 25 °C) - Withstands inrush currents during cold-start of automotive power supplies without failure.
C_j	480 pF at V_R = 0 V - Low capacitance minimizes switching loss and dv/dt-induced gate noise in adjacent MOSFETs.
Q_cj	28.5 nC at V_R = 400 V - Predictable capacitive charge enables accurate snubber design and EMI filtering.

Pinout & Package

TO-220AB package with isolated metal tab (heat sink plane), 3-terminal configuration: two anodes (A1, A2) and one common cathode (K). Mounting hole centered on tab; recommended torque 0.4–0.6 N·m.

Pin/Terminal	Circuit Role	Design Meaning
A1	Anode 1	Input terminal for first diode leg; electrically isolated from A2 and K; connects to AC input or boost inductor node.
A2	Anode 2	Input terminal for second diode leg; independent of A1; enables dual-phase or interleaved PFC topologies.
K	Common Cathode	Shared output node for both diodes; ties to PFC output capacitor positive rail; serves as primary thermal interface.

Key Features

Feature	Design Value
No reverse recovery (Q_rr ≈ 0)	Eliminates switching tail current and associated losses, enabling >100 kHz PFC operation without efficiency penalty.
Temperature-stable V_F and C_j	V_F increases only 0.42 V from 25 °C to 150 °C; C_j variation <±5% - ensures consistent timing and loss profile across full automotive ambient range.
AEC-Q101 qualified	Validated for automotive powertrain and charging systems per stress test requirements including HTGB, HTRB, and temperature cycling.
High surge robustness	470 A peak surge (10 µs square wave) supports fault-clearing in OCP-protected converters without bond-wire fusing.
ECOPACK®2 compliance	Halogen-free, RoHS-compliant epoxy meets UL94 V0 flammability rating - satisfies Tier-1 automotive environmental mandates.

Applications

On-Board Charger (OBC) PFC Stage

DC-DC Converter Input Rectification

Use Scenario: 6.6 kW bidirectional OBC operating in CCM PFC mode with 400 V DC bus and 50–100 kHz switching frequency.

IC Role / Device Role / Timing Role: Dual-anode SiC Schottky rectifier providing unidirectional current path with zero reverse recovery during high-side switch commutation.

Use Value: Enables >98% PFC efficiency at full load while reducing heatsink volume by 40% versus Si alternatives due to lower V_F and R_th(j-c).

Use Scenario: 3.3 kW isolated DC-DC stage converting 400 V battery to 12 V auxiliary supply in EV power distribution unit.

IC Role / Device Role / Timing Role: Input-side synchronous rectifier replacement in phase-shifted full-bridge topology, handling 20 A RMS input current.

Use Value: Eliminates body-diode conduction loss and shoot-through risk during dead-time, improving light-load efficiency by 2.1% at 10% load.

Industrial AC-DC Power Supply

Renewable Energy Inverter Front-End

Use Scenario: 5 kW telecom rectifier with active PFC and universal AC input (90–264 VAC).

IC Role / Device Role / Timing Role: Dual-diode rectifier in boost PFC cell, sharing thermal path to simplify heatsink layout and reduce component count.

Use Value: Maintains stable 650 V blocking capability up to 175 °C junction temperature, enabling derating-free operation in sealed enclosures.

Use Scenario: 10 kW solar string inverter front-end with two-stage MPPT and transformerless topology.

IC Role / Device Role / Timing Role: High-voltage bridge rectifier in DC link pre-charge and anti-islanding protection circuitry.

Use Value: Withstands 1500 V system-level surge tests (IEC 61000-4-5) due to robust 650 V rating and low leakage (<100 µA at 25 °C).

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
C3D06060A	Single 600 V, 6 A diode in TO-220AC; higher V_F (1.8 V @ 6 A); no dual-die integration.	Requires two devices and separate mounting for equivalent current rating; less compact than STPSC20H065CTY's dual-anode layout.	Preferred when board space allows discrete placement and thermal isolation between diodes is required.
STPSC12H065CWY	Same 650 V rating but 12 A per diode in TO-247; lower R_th(j-c) (0.95 °C/W); 4.43 g mass vs. 1.86 g.	Better thermal performance at high ambient; incompatible footprint - requires PCB redesign and larger heatsink cutout.	Select when thermal budget is constrained and TO-247 mechanical compatibility exists in existing platform.

Compared with C3D06060A and STPSC12H065CWY, STPSC20H065CTY uniquely balances dual-diode integration, TO-220AB footprint compatibility, and 20 A total average current in a single AEC-Q101-qualified package - making it optimal for cost-sensitive, space-constrained automotive PFC designs.

Availability

STPSC20H065CTY is available at Aetrix Electronics and suitable for on-board chargers, DC-DC converters, and industrial AC-DC power supplies requiring stable component supply, automotive qualification, and thermal robustness in high-power density designs.

Supply support for STPSC20H065CTY 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 automotive, industrial, and consumer markets.

This device belongs to ST's STPSC family of automotive-qualified silicon carbide Schottky diodes, engineered specifically for high-efficiency, high-reliability PFC and rectification in electrified vehicle power systems.

FAQ

What is the maximum allowable case temperature for continuous operation?

The STPSC20H065CTY supports continuous operation with case temperature up to 135 °C per diode, delivering 10 A average forward current per anode. Exceeding this requires derating per the thermal resistance curve in Figure 6; junction temperature must remain ≤175 °C to avoid thermal runaway.

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

Yes - the TO-220AB footprint and pinout match legacy silicon rectifiers, enabling drop-in replacement. However, reduced V_F and zero Q_rr may require minor snubber tuning and gate drive optimization to manage faster dv/dt edges and eliminate parasitic oscillation.

Is the common cathode internally bonded or externally accessible?

The cathode (K) is a single external terminal electrically and thermally connected to both internal diode dies. It is not internally split - both anodes share the same cathode node, confirmed by the device schematic in Section 1 of the datasheet and TO-220AB pin labeling (K, A1, A2).

How does the dual-diode thermal coupling affect derating in high-power applications?

When both diodes conduct simultaneously, junction temperature rise is calculated using ΔT_j(diode 1) = P(diode 1) × R_th(j-c) + P(diode 2) × R_th(c), where R_th(c) = 0.4 °C/W represents coupling between dies. This requires joint thermal modeling rather than independent derating.

STPSC20H065CTY Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Active

Diode Configuration:: 1 Pair Common Cathode

Technology:: SiC (Silicon Carbide) Schottky

Voltage - DC Reverse (Vr) (Max):: 650 V

Current - Average Rectified (Io) (per Diode):: 10A

Voltage - Forward (Vf) (Max) @ If:: 1.75 V @ 10 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 100 µA @ 650 V

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: TO-220

STPSC20H065CTY FAQ

1.How can I place an order for STPSC20H065CTY through Aetrix?

Please submit a Request for Quotation (RFQ) for STPSC20H065CTY 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 STPSC20H065CTY reliable?

The price and inventory of STPSC20H065CTY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPSC20H065CTY is usually 5 days.

3.What payment methods are accepted for STPSC20H065CTY?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPSC20H065CTY transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPSC20H065CTY?

STPSC20H065CTY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPSC20H065CTY 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 STPSC20H065CTY?

For technical support, including STPSC20H065CTY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPSC20H065CTY requirements.

6.How does Aetrix verify that STPSC20H065CTY is sourced from the original manufacturer or authorized distributors?

All STPSC20H065CTY 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 STPSC20H065CTY meets industry standards.

7.What is the process for return or replacement of STPSC20H065CTY?

All STPSC20H065CTY units undergo pre-shipment inspection (PSI). If there is an issue with STPSC20H065CTY, 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 STPSC20H065CTY part is unused and in its original packaging.

Return procedure for STPSC20H065CTY:

1.Submit a request within 90 days.

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

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