Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

STMicroelectronics STPSC6C065DY

Name: STPSC6C065DY
Brand: STMicroelectronics
SKU: STPSC6C065DY
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: STPSC6C065DY

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: TO-220-2

Datasheet:: STPSC6C065DY.pdf

Description:: DIODE SIL CARB 650V 6A TO220AC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:8,480

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

STPSC6C065DY from STMicroelectronics is an AEC-Q101-qualified 650 V, 6 A average forward current silicon carbide Schottky diode in TO-220AC package, designed for automotive PFC boost stages. It exhibits negligible reverse recovery, temperature-independent switching, 1.56 V typical forward voltage at 6 A and 25 °C, and 49 A non-repetitive surge capability-enabling high-efficiency, hard-switching operation in on-board chargers and DC-DC converters.

For engineers reviewing the STPSC6C065DY datasheet, STPSC6C065DY pinout, STPSC6C065DY application, or STPSC6C065DY equivalent, key selection criteria include its 175 °C max junction temperature, 2.6 °C/W max thermal resistance (j-c), 15.2 nC capacitive charge at 400 V, and ECOPACK®2 compliance for automotive-grade reliability and thermal robustness.

Technical Context

This SiC Schottky diode replaces conventional silicon fast recovery diodes in high-frequency PFC rectification by eliminating reverse recovery charge (Qrr ≈ 0) and minimizing voltage ringing. Its wide bandgap enables stable 650 V blocking with low leakage (250 µA max at 150 °C) and minimal capacitance variation across voltage (270 pF at 0 V → 29 pF at 300 V).

The device operates with fixed forward voltage slope (1.56–2.5 V across 25–150 °C at 6 A) and delivers high surge robustness (49 A, 10 ms sine) without thermal runaway-critical for transient handling in automotive 400 V battery systems and bidirectional AC/DC interfaces.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	650 V - Enables direct use in 400 V nominal AC/DC front-ends with 1.6× safety margin against line surges
I_F(AV)	6 A at T_c = 135 °C - Sustains continuous conduction in thermally constrained PFC heatsink layouts
V_F @ 6 A, 25 °C	1.56 V (typ) - Reduces conduction loss to ~9.4 W per diode in boost stage, lowering thermal design burden
R_th(j-c)	2.6 °C/W (max) - Allows accurate junction temperature prediction using case temperature measurement
Q_cj @ 400 V	15.2 nC - Defines turn-off capacitive energy dissipation in hard-switched totem-pole PFC topologies
T_j(max)	175 °C - Supports operation in under-hood environments without derating below full load
I_FSM	49 A (10 ms sine, T_c = 25 °C) - Withstands inrush and fault currents in OBC startup and grid-fault conditions

Pinout & Package

TO-220AC package with isolated tab (pin 1 = cathode, pin 2 = anode, metal tab = cathode). Mounting torque: 0.55 N·m recommended (0.7 N·m max). Epoxy meets UL94 V0; cooling via conduction through tab to heatsink.

Pin/Terminal	Circuit Role	Design Meaning
Anode (lead)	Current entry point during forward conduction	Connected to boost inductor output; requires low-inductance layout to minimize switching overshoot
Cathode (lead + tab)	Current exit point and primary thermal path	Tab must be electrically isolated and thermally coupled to heatsink; serves as main return path for PFC output

Key Features

Feature	Design Value
No reverse recovery (Q_rr ≈ 0)	Eliminates turn-off switching loss and associated EMI in >100 kHz PFC, enabling higher frequency operation
Temperature-stable V_F slope	Forward voltage increases only ~0.42 V from 25 °C to 150 °C at 6 A-simplifies thermal compensation in control loop
AEC-Q101 qualification	Validated for automotive powertrain and charging applications including vibration, thermal cycling, and humidity testing
High I_FSM (49 A)	Survives cold-crank and load-dump transients without degradation in on-board charger input rectification
ECOPACK®2 compliance	Halogen-free, RoHS-compliant packaging meeting automotive environmental and regulatory requirements

Applications

On-Board Charger (OBC) Boost Stage

400 V DC-DC Converter Output Rectification

Use Scenario: High-frequency interleaved boost PFC stage converting AC grid to 400 V DC bus in EV OBC.

IC Role / Device Role / Timing Role: Primary unidirectional rectifier in hard-switched boost diode position-conducts during switch off-time, blocks during switch on-time.

Use Value: Zero Q_rr eliminates reverse recovery loss and reduces MOSFET turn-on stress, improving system efficiency by 0.8–1.2% at full load.

Use Scenario: Secondary-side synchronous rectification replacement in isolated 400 V output stage of bidirectional DC-DC converter.

IC Role / Device Role / Timing Role: Freewheeling diode clamping in-phase current during transformer reset; handles peak forward surge during soft-start.

Use Value: 49 A I_FSM withstands 2× rated output current surges during battery pre-charge, avoiding secondary-side FET overcurrent protection trips.

Automotive Lighting Power Supply

Industrial AC-DC Front-End Module

Use Scenario: Constant-current LED driver input rectifier in headlamp control units exposed to engine bay temperatures up to 125 °C ambient.

IC Role / Device Role / Timing Role: Input bridge rectifier feeding active PFC controller-operates continuously at elevated case temperature.

Use Value: Stable 1.98 V V_F at 150 °C ensures predictable conduction loss and avoids thermal runaway in sealed enclosures.

Use Scenario: High-reliability industrial AC-DC power supply for factory automation controllers requiring long service life and no maintenance.

IC Role / Device Role / Timing Role: Main rectifier in continuous conduction mode (CCM) boost PFC-handles 6 A average current with minimal derating.

Use Value: 175 °C T_j(max) and PPAP capability support 10+ year field deployment with zero failure-in-time (FIT) increase due to thermal aging.

Equivalent & Alternatives

The following parts are listed as comparable options for similar SiC Schottky diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
C3D06065A (Wolfspeed)	Same 650 V/6 A rating; 1.75 V V_F (typ) at 6 A/25 °C; TO-220-2L package with isolated tab	Higher V_F increases conduction loss by ~0.15 W at full load; identical thermal resistance	Select when legacy Wolfspeed footprint compatibility is required; verify mounting torque spec (0.5 N·m)
SS10P6 (Rohm)	650 V/10 A rating; 1.7 V V_F (typ); TO-220AC package but not AEC-Q101 qualified	Lacks automotive qualification and PPAP support; higher I_F(AV) allows lower thermal stress at same current	Acceptable for industrial-only designs where AEC-Q101 is not mandated; avoid in OBC or traction-related systems

Compared with C3D06065A and SS10P6, STPSC6C065DY offers the lowest V_F (1.56 V typ), full AEC-Q101 validation, and documented PPAP readiness-making it the preferred choice for production automotive PFC where efficiency, qualification, and supply chain traceability are jointly critical.

Availability

STPSC6C065DY is available at Aetrix Electronics and suitable for on-board chargers, 400 V DC-DC converters, automotive lighting power supplies, and industrial AC-DC front-end modules requiring stable component supply, automotive-grade reliability, and long-term lifecycle support.

Supply support for STPSC6C065DY 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 delivering intelligent power, sensing, and control solutions for automotive, industrial, and consumer markets-with annual R&D investment exceeding €1.5 billion.

The STPSC series targets high-efficiency, high-reliability power conversion in automotive electrification, focusing on SiC-based PFC and output rectification where thermal stability and zero-recovery performance are mandatory.

FAQ

Is STPSC6C065DY suitable for synchronous rectification?

No. STPSC6C065DY is a unidirectional Schottky diode optimized for PFC boost and freewheeling roles-not a controllable switch. It lacks gate drive interface and cannot replace MOSFETs in synchronous rectifier configurations. Its zero Q_rr makes it ideal as a passive replacement for silicon diodes in hard-switched topologies, but it does not support active gate control or bidirectional conduction.

What is the maximum recommended case temperature for continuous operation?

The maximum case temperature for continuous I_F(AV) = 6 A operation is 135 °C, as specified in Table 2. Exceeding this requires current derating per the thermal curve in Figure 4. At T_c = 135 °C, junction temperature reaches 175 °C (T_j = T_c + R_th(j-c) × P_cond), which is the absolute maximum rated limit.

Does STPSC6C065DY require a snubber circuit in typical PFC applications?

Snubbers are generally unnecessary due to negligible reverse recovery and low capacitive turn-off behavior. However, a small RC snubber (e.g., 10 Ω + 100 pF) may still be used across the diode in ultra-high dv/dt environments (>50 V/ns) to damp residual ringing from stray inductance-verified via oscilloscope measurement at the diode terminals under worst-case load and line conditions.

How does the 15.2 nC capacitive charge affect totem-pole PFC design?

The 15.2 nC Q_cj at 400 V defines the energy (E = ½ × Q_cj × V) dissipated each time the diode turns off in the high-side leg of a totem-pole PFC. This contributes directly to switching loss in that leg and must be included in total loss calculations alongside MOSFET gate and conduction losses-especially critical when optimizing dead-time and selecting gate drivers with adequate peak current capability.

STPSC6C065DY 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):: 650 V

Current - Average Rectified (Io):: 6A

Voltage - Forward (Vf) (Max) @ If:: 1.75 V @ 6 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 60 µA @ 650 V

Capacitance @ Vr, F:: 270pF @ 0V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AC

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

STPSC6C065DY FAQ

1.How can I place an order for STPSC6C065DY through Aetrix?

Please submit a Request for Quotation (RFQ) for STPSC6C065DY 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 STPSC6C065DY reliable?

The price and inventory of STPSC6C065DY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPSC6C065DY is usually 5 days.

3.What payment methods are accepted for STPSC6C065DY?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPSC6C065DY transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPSC6C065DY?

STPSC6C065DY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPSC6C065DY 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 STPSC6C065DY?

For technical support, including STPSC6C065DY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPSC6C065DY requirements.

6.How does Aetrix verify that STPSC6C065DY is sourced from the original manufacturer or authorized distributors?

All STPSC6C065DY 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 STPSC6C065DY meets industry standards.

7.What is the process for return or replacement of STPSC6C065DY?

All STPSC6C065DY units undergo pre-shipment inspection (PSI). If there is an issue with STPSC6C065DY, 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 STPSC6C065DY part is unused and in its original packaging.

Return procedure for STPSC6C065DY:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

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, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

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.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…