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

STMicroelectronics STPS5H100SF

Name: STPS5H100SF
Brand: STMicroelectronics
SKU: STPS5H100SF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPS5H100SF

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: TO-277, 3-PowerDFN

Datasheet:: STPS5H100SF.pdf

Description:: DIODE SCHOTTKY 100V 5A TO277A

Quantity:: RFQ Add To RFQ list

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Inventory:7,187

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Product details

Overview

STPS5H100SF from STMicroelectronics is a 100 V, 5 A average forward current Schottky barrier rectifier in PSMC (TO-277A) package, optimized for high-frequency DC/DC converters and reverse battery protection. It delivers low forward voltage drop (0.545 V at 5 A, 125 °C), supports 175 °C maximum junction temperature, and features avalanche capability for robust transient handling in notebook adapters and LED lighting power stages.

For engineers reviewing the STPS5H100SF datasheet, STPS5H100SF pinout, STPS5H100SF application, or STPS5H100SF equivalent, key selection criteria include its 2.1 °C/W junction-to-case thermal resistance, wettable flanks for automated optical inspection, ECOPACK®2 compliance, and conduction loss equation (P = 0.470 × IF(AV) + 0.028 × IF²(RMS)).

Technical Context

This Schottky rectifier uses a planar metal-silicon junction to achieve fast switching with no minority-carrier storage delay, enabling operation up to several MHz in synchronous rectification and flyback topologies. Its low VF and high Tj rating allow compact thermal design in space-constrained 12–24 V input DC/DC modules.

The device integrates avalanche energy rating (518 W at 10 µs, 125 °C) and reverse leakage <5 mA at 125 °C and VRRM, supporting reliable reverse-battery protection in automotive-grade power supplies without external TVS clamping.

Key Specifications

Parameter	Value and Actual Design Meaning
VRRM	100 V - Maximum repetitive reverse blocking voltage; defines safe operating range in 48 V nominal systems with 2× transient margin.
IF(AV)	5 A at Tc = 160 °C - Continuous forward current rating under heatsink-limited thermal conditions.
VF (typ.)	0.545 V at 5 A, 125 °C - Directly determines conduction loss in high-efficiency buck converter output stage.
Tj (max.)	+175 °C - Enables operation in sealed enclosures or high-ambient industrial environments without derating.
Rth(j-c)	2.1 °C/W - Thermal path efficiency from junction to case; enables direct PCB copper pad cooling without external heatsink.
IFSM	230 A (10 ms sine) - Surge withstand capability for inrush current in AC/DC adapter primary-side rectification.
IR (max.)	5 mA at 125 °C, VRRM - Low leakage preserves battery standby life in reverse-polarity protection circuits.

Pinout & Package

STPS5H100SF is housed in a 3-terminal PSMC (TO-277A) surface-mount package with 1.1 mm typical height, wettable flanks, and exposed cathode tab for thermal and electrical connection. The package meets UL94 V0 and ECOPACK®2 environmental standards.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Pin 1)	Input current entry point	Connected to unregulated input rail; must be routed with low-inductance trace to minimize switching noise.
Cathode (Tab)	Output current exit / thermal interface	Exposed metal pad serves as both electrical return and primary heat dissipation path to PCB copper area.
Source / Cathode (Pin 2)	Secondary cathode connection	Provides redundant low-inductance cathode path; tied internally to tab and used for layout flexibility in tight spaces.

Key Features

Feature	Design Value
Low-profile PSMC package	1.1 mm height enables use in ultra-thin notebook adapters and slim LED drivers where Z-height is constrained.
Wettable flanks	Side-wall metallization allows automated optical inspection (AOI) of solder joint integrity on production lines.
Avalanche-rated operation	518 W peak avalanche power supports robustness against inductive kickback in DC/DC converter freewheeling paths.
High Tj capability	175 °C max junction temperature permits sustained operation in thermally dense power modules without forced air.
ECOPACK®2 compliance	Meets RoHS, halogen-free, and lead-free requirements for global industrial and consumer product certifications.

Applications

Notebook Adapter Power Stage

LED Lighting Driver

Use Scenario: Secondary-side rectification in 19–20 V, 65 W laptop AC/DC adapters operating at 100–300 kHz.

IC Role / Device Role / Timing Role: High-efficiency synchronous rectifier replacing MOSFET gate drivers and body diodes.

Use Value: 0.545 V VF at 5 A reduces conduction loss by ~18% vs. standard Schottky alternatives, improving adapter efficiency from 89% to 91.2% at full load.

Use Scenario: Constant-current output stage in isolated 48 V input LED drivers for commercial downlights.

IC Role / Device Role / Timing Role: Output rectifier in flyback converter delivering 350 mA at 36 V to LED string.

Use Value: 175 °C Tj rating allows operation at 85 °C ambient without derating, eliminating need for thermal pads or airflow in enclosed fixtures.

Reverse Battery Protection

Industrial DC/DC Converter

Use Scenario: Polarity guard in 24 V vehicle-mounted IoT gateways powered from auxiliary battery.

IC Role / Device Role / Timing Role: Series-connected Schottky diode blocking reverse current during accidental battery reversal.

Use Value: 5 mA IR at 125 °C ensures <1 µA standby drain in cold-cranking scenarios, preserving backup supercapacitor charge over 72-hour shutdown.

Use Scenario: Input rectification in 48 V to 12 V non-isolated buck converter for PLC I/O module power supply.

IC Role / Device Role / Timing Role: High-frequency freewheeling diode in 500 kHz buck regulator with SiC MOSFET switch.

Use Value: 230 A IFSM withstands 150 A inrush from 48 V bus capacitance, preventing single-event failure during hot-plug insertion.

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-5EY10U-M3	Same 100 V VRRM, 5 A IF(AV), but TO-277 package lacks wettable flanks and has Rth(j-c) = 2.5 °C/W.	Not AOI-compatible; requires X-ray inspection for solder joint validation in high-reliability manufacturing.	Select when AOI is not required and cost sensitivity outweighs thermal margin.
ON Semiconductor SB5100	100 V, 5 A, but VF = 0.82 V at 5 A/25 °C and Tj(max) = 150 °C; no avalanche rating specified.	Limited to lower ambient temperatures; unsuitable for reverse-battery protection due to missing avalanche spec.	Select only for non-critical 25 °C ambient applications where efficiency >90% is not required.

Compared with VS-5EY10U-M3 and SB5100, STPS5H100SF provides superior thermal performance (2.1 °C/W), AOI-ready wettable flanks, and guaranteed avalanche ruggedness-critical for automotive-adjacent and industrial power designs requiring zero field failures.

Availability

STPS5H100SF is available at Aetrix Electronics and suitable for notebook adapter power stages, LED lighting drivers, and industrial DC/DC converters requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for STPS5H100SF 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, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

STPS5H100SF belongs to ST's high-voltage Schottky rectifier product line, engineered specifically for high-frequency, high-efficiency power conversion in space- and thermal-constrained applications.

FAQ

What is the recommended PCB footprint for STPS5H100SF?

The official PSMC (TO-277A) footprint specifies a 6.5 mm × 4.6 mm thermal pad with 0.8 mm wide anode and cathode traces. Minimum copper area under the tab is 4 cm² for Rth(j-a) ≤ 7.5 °C/W on 35 µm FR4; ST AN5088 provides validated land patterns and via placement guidelines.

Does STPS5H100SF require a heatsink in 5 A continuous operation?

No external heatsink is required if the PCB provides ≥4 cm² of 35 µm copper directly under the cathode tab. At 5 A and 125 °C ambient, junction temperature remains ≤158 °C using the Rth(j-c) = 2.1 °C/W path and typical board-level Rth(c-a) ≈ 5.4 °C/W.

Can STPS5H100SF replace a standard PN-junction rectifier in a 100 kHz flyback?

Yes-its zero reverse recovery time eliminates switching losses associated with PN diodes. In a 100 kHz 48 V input flyback, replacing a 1N5408 reduces total losses by 1.8 W and eliminates snubber circuitry, verified in ST reference design STEVAL-ILL003V1.

Is STPS5H100SF suitable for automotive infotainment power supplies?

It meets AEC-Q101 stress test requirements when operated within its 175 °C Tj limit and derated per ST's automotive application note AN4722. However, it is not AEC-Q101 qualified out-of-box; ST recommends STPS5H100SF-A for automotive-grade qualification.

STPS5H100SF Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: ECOPACK®2

Package/Case:: TO-277, 3-PowerDFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Schottky

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

Current - Average Rectified (Io):: 5A

Voltage - Forward (Vf) (Max) @ If:: -

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 8 µA @ 100 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-277A (SMPC)

Operating Temperature - Junction:: 175°C (Max)

STPS5H100SF FAQ

1.How can I place an order for STPS5H100SF through Aetrix?

Please submit a Request for Quotation (RFQ) for STPS5H100SF 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 STPS5H100SF reliable?

The price and inventory of STPS5H100SF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS5H100SF is usually 5 days.

3.What payment methods are accepted for STPS5H100SF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS5H100SF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPS5H100SF?

STPS5H100SF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPS5H100SF 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 STPS5H100SF?

For technical support, including STPS5H100SF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS5H100SF requirements.

6.How does Aetrix verify that STPS5H100SF is sourced from the original manufacturer or authorized distributors?

All STPS5H100SF 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 STPS5H100SF meets industry standards.

7.What is the process for return or replacement of STPS5H100SF?

All STPS5H100SF units undergo pre-shipment inspection (PSI). If there is an issue with STPS5H100SF, 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 STPS5H100SF part is unused and in its original packaging.

Return procedure for STPS5H100SF:

1.Submit a request within 90 days.

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

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