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

STMicroelectronics STPST10H100SBYTR

Name: STPST10H100SBYTR
Brand: STMicroelectronics
SKU: STPST10H100SBYTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPST10H100SBYTR

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: STPST10H100SBYTR.pdf

Description:: AUTOMOTIVE 100 V, 10 A, DPAK POW

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Product details

Overview

STPST10H100SBYTR from STMicroelectronics is an AEC-Q101-qualified 10 A, 100 V automotive-grade Schottky trench rectifier in DPAK package, featuring typ. 0.57 V forward voltage at 10 A/125 °C, 100% avalanche tested, and operating up to +175 °C junction temperature. It targets high-frequency DC/DC converters, ECU power supplies, and LED lighting in automotive systems.

For engineers reviewing the STPST10H100SBYTR datasheet, STPST10H100SBYTR pinout, STPST10H100SBYTR application, or STPST10H100SBYTR equivalent, key selection criteria include low conduction loss (VF/IR trade-off), avalanche ruggedness, thermal performance (Rth(j-c) = 0.7 °C/W), and DPAK mounting compatibility for compact automotive power stages.

Technical Context

This device uses ST's proprietary trench Schottky technology to minimize forward voltage while maintaining low reverse leakage-achieving a VF/IR balance superior to planar Schottkys at same voltage rating. Its 100% production avalanche testing ensures robustness under unclamped inductive switching events common in flyback and freewheeling topologies.

The DPAK package enables direct heatsinking via the exposed cathode tab, supporting continuous 10 A average current at Tc = 165 °C. Thermal resistance junction-to-case is 0.7 °C/W, and operation over –40 °C to +175 °C allows deployment in engine bay and powertrain control modules without derating.

Key Specifications

Parameter	Value and Actual Design Meaning
VRRM	100 V - Maximum repetitive reverse blocking voltage; supports 48 V automotive bus with margin for transients.
IF(AV)	10 A - Average forward current at Tc = 165 °C; defines continuous DC output capability in DC/DC converters.
VF (typ.)	0.57 V @ 10 A, 125 °C - Low conduction loss reduces heat generation and improves efficiency in high-duty-cycle applications.
IR (max)	13.5 mA @ 125 °C, VR = 70 V - Controlled reverse leakage enables stable operation in high-temp ECU power rails.
Rth(j-c)	0.7 °C/W - Enables efficient thermal path to heatsink; permits >15 W dissipation before reaching 175 °C junction limit.
Tj (max)	+175 °C - Qualified for under-hood automotive environments without forced cooling or derating.
IAS	14 A - Single-pulse avalanche current (L = 300 µH, VDD = 15 V); ensures survivability during load dump or inductive kick events.

Pinout & Package

Supplied in DPAK (TO-252) package with exposed cathode tab for thermal and electrical connection. Anode and cathode terminals are on leads; cathode is connected to the metal tab.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Input current terminal	Connects to input rail (e.g., battery or switch node); carries full forward current into device.
Cathode (Lead 2)	Output current terminal	Connects to output/load side; low-impedance path to ground or return rail in freewheeling configuration.
Tab (Cathode)	Thermal & electrical cathode	Electrically tied to cathode; must be soldered to copper pour for thermal management and low-inductance return path.

Key Features

Feature	Design Value
AEC-Q101 qualified & PPAP capable	Validated for automotive production use with full traceability, process control, and failure mode documentation.
Low VF/IR trade-off	0.57 V @ 10 A/125 °C and only 13.5 mA IR @ 70 V/125 °C-enables higher efficiency than standard Schottkys in 12–48 V systems.
100% avalanche tested	Each unit passes unclamped inductive switching test (EAS = ½ × L × IAS²), ensuring reliability in flyback snubberless designs.
ECOPACK2 compliant	Meets RoHS, halogen-free, and lead-free reflow requirements per JEDEC J-STD-020; suitable for global automotive supply chains.
Extended Tj range	–40 °C to +175 °C operation eliminates need for external thermal derating in ECU or lighting control modules.

Applications

Automotive LED Headlamp Driver

Flyback DC/DC Converter

Use Scenario: High-brightness LED array powered from 12 V battery with PWM dimming and thermal foldback.

IC Role / Device Role / Timing Role: Output rectifier in secondary-side synchronous or quasi-resonant flyback stage.

Use Value: 0.57 V VF minimizes conduction loss at 5–10 A output, reducing heatsink size and enabling compact headlamp module design.

Use Scenario: Isolated 12 V → 3.3 V/5 V supply for microcontroller and sensors in body control module.

IC Role / Device Role / Timing Role: Secondary-side freewheeling diode handling high-frequency (100–500 kHz) switching transitions.

Use Value: Low recovery charge and 175 °C rating allow stable operation without snubber, improving efficiency and reducing component count.

On-board Charger Auxiliary Supply

ECU Power Rail Protection

Use Scenario: Auxiliary 12 V → 5 V converter powering CAN transceivers and gate drivers inside OBC control board.

IC Role / Device Role / Timing Role: Input rectifier feeding buck controller; handles reverse polarity and load dump transients.

Use Value: 100% avalanche tested and 14 A IAS withstand capability prevent failure during 12 V bus transients up to ±100 V.

Use Scenario: Reverse polarity protection and OR-ing diode in dual-supply ECU with battery and backup capacitor.

IC Role / Device Role / Timing Role: Low-VF series diode blocking reverse current while minimizing voltage drop on main 5 V rail.

Use Value: 0.545 V VF @ 5 A/25 °C reduces dropout to <3%, preserving regulation margin for critical MCU cores.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor NSS10100CTG	10 A/100 V D2PAK Schottky; VF = 0.65 V @ 10 A/125 °C; Rth(j-c) = 0.9 °C/W; not AEC-Q101 qualified.	Lacks automotive qualification and avalanche testing; suited for industrial DC/DC but not safety-critical ECU use.	Select only for non-automotive cost-sensitive designs where thermal margin exists.
Vishay V10P10-M3/86A	10 A/100 V DPAK Schottky; VF = 0.62 V @ 10 A/125 °C; IR = 20 mA @ 125 °C/70 V; AEC-Q101 qualified but no production avalanche test data published.	Higher VF increases conduction loss by ~9%; lacks documented avalanche robustness for unclamped inductive loads.	Acceptable for LED lighting where transient stress is low; avoid in flyback snubberless or ECU primary-side rectification.

Compared with NSS10100CTG and V10P10-M3/86A, STPST10H100SBYTR delivers lower VF, verified avalanche ruggedness, and tighter IR control-making it the only choice for thermally constrained, safety-relevant automotive power stages requiring zero-failure field reliability.

Availability

STPST10H100SBYTR is available at Aetrix Electronics and suitable for automotive LED lighting, flyback topology power supplies, and ECU power supply designs requiring stable component supply across multi-year vehicle production cycles.

Supply support for STPST10H100SBYTR 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 analog, power, microcontroller, and sensor solutions for automotive, industrial, and consumer markets.

This device belongs to ST's automotive-qualified power Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability DC/DC conversion in engine control units, lighting systems, and onboard chargers.

FAQ

What is the maximum allowable case temperature for continuous 10 A operation?

The datasheet specifies IF(AV) = 10 A at Tc = 165 °C with δ = 0.5 square wave. This is the absolute maximum case temperature for rated average current; operation above 165 °C requires derating per Figure 3. Thermal design must ensure the tab remains ≤165 °C under worst-case ambient and airflow conditions.

Is STPST10H100SBYTR suitable for synchronous rectification?

No-it is a unidirectional Schottky rectifier, not a MOSFET-based synchronous device. It cannot be actively controlled or driven by a gate signal. It functions only as a passive freewheeling or output rectifier in non-synchronous topologies like standard flyback or boost converters.

Does the DPAK package require thermal vias under the tab?

Yes. The exposed cathode tab is electrically and thermally active. ST recommends connecting it to ≥200 mm² internal or external copper pour with ≥6 thermal vias (0.3 mm diameter, 0.8 mm pitch) to achieve the specified Rth(j-c) = 0.7 °C/W and prevent localized overheating at the die interface.

How does the 100% avalanche test impact system-level reliability?

Each unit undergoes unclamped inductive switching (UIS) testing per Figure 1–2, verifying survival at EAS = ½ × 300 µH × (14 A)² ≈ 29.4 mJ. This ensures immunity to real-world inductive energy spikes-such as relay coil de-energization or motor commutation-without requiring external clamping components.

STPST10H100SBYTR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 100 V

Current - Average Rectified (Io):: 10A

Voltage - Forward (Vf) (Max) @ If:: 715 mV @ 10 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 26 µA @ 100 V

Capacitance @ Vr, F:: -

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-252 (DPAK)

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

STPST10H100SBYTR FAQ

1.How can I place an order for STPST10H100SBYTR through Aetrix?

Please submit a Request for Quotation (RFQ) for STPST10H100SBYTR 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 STPST10H100SBYTR reliable?

The price and inventory of STPST10H100SBYTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPST10H100SBYTR is usually 5 days.

3.What payment methods are accepted for STPST10H100SBYTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPST10H100SBYTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPST10H100SBYTR?

STPST10H100SBYTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPST10H100SBYTR 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 STPST10H100SBYTR?

For technical support, including STPST10H100SBYTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPST10H100SBYTR requirements.

6.How does Aetrix verify that STPST10H100SBYTR is sourced from the original manufacturer or authorized distributors?

All STPST10H100SBYTR 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 STPST10H100SBYTR meets industry standards.

7.What is the process for return or replacement of STPST10H100SBYTR?

All STPST10H100SBYTR units undergo pre-shipment inspection (PSI). If there is an issue with STPST10H100SBYTR, 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 STPST10H100SBYTR part is unused and in its original packaging.

Return procedure for STPST10H100SBYTR:

1.Submit a request within 90 days.

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

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