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

STMicroelectronics STPST15H100SBYTR

Name: STPST15H100SBYTR
Brand: STMicroelectronics
SKU: STPST15H100SBYTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPST15H100SBYTR

Manufacturer:: STMicroelectronics

Category:: Single Diodes

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

Datasheet:: STPST15H100SBYTR.pdf

Description:: AUTOMOTIVE 100 V, 15 A, DPAK POW

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Product details

Overview

STPST15H100SBYTR from STMicroelectronics is an AEC-Q101-qualified 15 A, 100 V automotive-grade Schottky trench rectifier in DPAK package, featuring typ. 0.595 V forward voltage at 15 A and 125 °C, 100% avalanche tested, and rated for Tj up to +175 °C. It targets high-frequency DC/DC converters, ECU power supplies, and LED lighting in under-hood automotive systems.

For engineers reviewing the STPST15H100SBYTR datasheet, STPST15H100SBYTR pinout, STPST15H100SBYTR application, or STPST15H100SBYTR equivalent, key selection criteria include low VF/IR trade-off, avalanche ruggedness, thermal performance (Rth(j-c) = 0.6 °C/W), and DPAK mounting compatibility with FR4 PCBs.

Technical Context

This device uses ST's proprietary trench Schottky technology to minimize conduction and switching losses simultaneously-achieving 0.595 V VF at 15 A/125 °C and <16 mA IR at 100 V/125 °C. Its 0.6 °C/W junction-to-case thermal resistance supports high-power density layouts in constrained automotive spaces.

The DPAK package enables direct heatsinking via the exposed cathode tab, and the device is fully characterized for unclamped inductive switching (IAS = 16 A, L = 300 µH), making it suitable for freewheeling, OR-ing, and reverse polarity protection where transient energy absorption is critical.

Key Specifications

Parameter	Value and Actual Design Meaning
VRRM	100 V - Maximum repetitive reverse blocking voltage; ensures safe operation in 48 V automotive bus transients.
IF(AV)	15 A - Average forward current at Tc = 165 °C; defines continuous DC output capability in DC/DC converters.
VF (typ.)	0.595 V @ 15 A, 125 °C - Low conduction loss directly reduces heat generation and improves efficiency in high-current paths.
Rth(j-c)	0.6 °C/W - Enables >25 W dissipation with ≤15 °C case-to-junction rise; supports compact thermal design without external heatsink.
Tj (max.)	+175 °C - Extended junction temperature rating allows reliable operation near hot engine compartments.
IAS	16 A - Single-pulse avalanche current (L = 300 µH); guarantees robustness against inductive kickback in flyback/freewheeling circuits.

Pinout & Package

Supplied in DPAK (TO-252) package with exposed cathode tab for thermal and electrical connection. Cathode is connected to the large metal pad (pin 2), anode to pin 1 (lead). No third terminal.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Lead)	Anode	Input current entry point; connects to switching node or input rail in flyback/freewheeling topologies.
Pin 2 (Tab)	Cathode	High-current return path and primary thermal interface; must be soldered to ≥4 cm² copper pour for Rth(j-a) ≤ 30 °C/W.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive under-hood use including temperature cycling, humidity, and mechanical shock per JESD47.
Low VF/IR trade-off	0.595 V @ 15 A/125 °C and 2.6 mA IR @ 70 V/125 °C - balances efficiency and leakage in high-temp environments.
100% avalanche tested	Every unit subjected to unclamped inductive switching (EAS = 0.5 × L × IAS²) - eliminates latent failure modes in safety-critical power rails.
ECOPACK2 compliance	Halogen-free, RoHS-compliant materials with lead-free terminations - meets global automotive environmental mandates.

Applications

Automotive LED Headlamp Driver

Flyback DC/DC Converter

Use Scenario: High-efficiency buck-derived LED driver supplying 12–48 V, 3–5 A to adaptive front-lighting modules.

IC Role / Device Role / Timing Role: Output rectifier handling high-frequency (200–500 kHz), high-duty-cycle current with minimal conduction loss.

Use Value: 0.595 V VF at 125 °C reduces diode power loss by ~1.2 W vs. legacy Schottkys, enabling smaller heatsinks and tighter thermal margins.

Use Scenario: 12 V to 5 V/3 A isolated flyback converter powering infotainment MCU and CAN transceivers.

IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement; freewheeling path during MOSFET off-time.

Use Value: Avalanche ruggedness (IAS = 16 A) prevents failure during output short-circuit or transformer saturation events.

ECU Main Power Supply

Reverse Polarity Protection

Use Scenario: Input-stage rectification in 12 V battery-fed engine control unit with wide ambient range (−40 °C to +125 °C).

IC Role / Device Role / Timing Role: Primary input rectifier converting alternator AC or battery ripple into stable DC bus before LDO or buck regulator.

Use Value: +175 °C Tj rating ensures uninterrupted operation during prolonged engine idle or high-load conditions.

Use Scenario: Low-loss reverse polarity guard in 24 V commercial vehicle telematics module with limited board space.

IC Role / Device Role / Timing Role: Cathode-to-input, anode-to-load configuration blocking reverse battery connection while conducting forward current.

Use Value: 0.665 V VF @ 15 A/25 °C minimizes voltage drop and self-heating compared to P-channel MOSFET solutions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay VS-15EWH10-M3	Higher VF (0.72 V @ 15 A/125 °C); same VRRM, DPAK, AEC-Q101.	Lower efficiency in thermally constrained layouts; higher conduction loss increases thermal stress.	Prefer when cost sensitivity outweighs thermal margin requirements.
ON Semiconductor MUR15100CT	Ultrafast recovery diode (not Schottky); 100 V, 15 A, TO-220AB; no AEC-Q101.	Higher switching loss and VF (~1.1 V); unsuitable for high-frequency automotive DC/DC.	Only acceptable for non-automotive, lower-frequency industrial supplies with relaxed efficiency targets.

Compared with VS-15EWH10-M3 and MUR15100CT, STPST15H100SBYTR delivers superior thermal efficiency and automotive qualification-enabling smaller PCB area, higher reliability in under-hood environments, and guaranteed avalanche survival in fault conditions.

Availability

STPST15H100SBYTR 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 extended temperature and lifetime requirements.

Supply support for STPST15H100SBYTR 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 microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.

This device belongs to ST's automotive-qualified power rectifier product line, engineered specifically for high-efficiency, high-reliability DC/DC conversion and power conditioning in harsh-temperature automotive subsystems.

FAQ

Is STPST15H100SBYTR suitable for synchronous rectification?

No. STPST15H100SBYTR is a passive Schottky rectifier-not a synchronous rectifier controller or MOSFET driver. It replaces conventional diodes in secondary-side rectification but requires no gate drive signal. Its low VF and fast recovery make it ideal for high-frequency flyback or forward converters where active synchronization is not implemented.

What is the maximum recommended PCB copper area for thermal performance?

Per DS14181 Figure 8, a minimum of 4 cm² of 70 µm-thick copper under the DPAK tab achieves Rth(j-a) ≈ 30 °C/W. For continuous 15 A operation at Tc = 165 °C, ≥10 cm² is recommended to maintain Tj ≤ 175 °C with 20 °C ambient and natural convection.

Does this part support PPAP documentation for automotive programs?

Yes. STPST15H100SBYTR is PPAP-capable per customer request. ST provides full PPAP Level 3 documentation-including dimensional reports, material certifications, process flow diagrams, control plans, and test data-for qualified automotive programs upon formal request through authorized distribution channels.

Can STPST15H100SBYTR be used in OR-ing applications with parallel power sources?

Yes. Its low forward voltage (0.595 V typ. @ 15 A/125 °C) and low reverse leakage (<7.5 mA @ 70 V/125 °C) enable efficient OR-ing between redundant 12 V or 24 V supplies. The DPAK cathode tab must be common-connected, and layout must ensure matched trace impedance to avoid current imbalance.

STPST15H100SBYTR 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):: 15A

Voltage - Forward (Vf) (Max) @ If:: 740 mV @ 15 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 28 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

STPST15H100SBYTR FAQ

1.How can I place an order for STPST15H100SBYTR through Aetrix?

Please submit a Request for Quotation (RFQ) for STPST15H100SBYTR 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 STPST15H100SBYTR reliable?

The price and inventory of STPST15H100SBYTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPST15H100SBYTR is usually 5 days.

3.What payment methods are accepted for STPST15H100SBYTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPST15H100SBYTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPST15H100SBYTR?

STPST15H100SBYTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPST15H100SBYTR 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 STPST15H100SBYTR?

For technical support, including STPST15H100SBYTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPST15H100SBYTR requirements.

6.How does Aetrix verify that STPST15H100SBYTR is sourced from the original manufacturer or authorized distributors?

All STPST15H100SBYTR 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 STPST15H100SBYTR meets industry standards.

7.What is the process for return or replacement of STPST15H100SBYTR?

All STPST15H100SBYTR units undergo pre-shipment inspection (PSI). If there is an issue with STPST15H100SBYTR, 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 STPST15H100SBYTR part is unused and in its original packaging.

Return procedure for STPST15H100SBYTR:

1.Submit a request within 90 days.

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

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