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

STMicroelectronics STPS5H100H

Name: STPS5H100H
Brand: STMicroelectronics
SKU: STPS5H100H
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPS5H100H

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: TO-251-3 Short Leads, IPAK, TO-251AA

Datasheet:: STPS5H100H.pdf

Description:: DIODE SCHOTTKY 100V 5A TO251

Quantity:: RFQ Add To RFQ list

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Inventory:1,832

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Product details

Overview

STPS5H100H from STMicroelectronics is a high-voltage Schottky barrier rectifier in IPAK package, rated for 100 V repetitive peak reverse voltage, 5 A average forward current, and 175 °C maximum junction temperature. It delivers low forward voltage drop (0.57 V typ. at 5 A, 125 °C) with negligible switching losses, enabling high-efficiency operation in compact DC-DC converters and AC/DC adapters.

For engineers reviewing the STPS5H100H datasheet, STPS5H100H pinout, STPS5H100H application, or STPS5H100H equivalent, key selection criteria include its avalanche-rated capability (515 W peak), low leakage current (4.5 mA max at 125 °C), thermal resistance (2.5 °C/W junction-to-case), and ECOPACK®-compliant IPAK packaging for industrial power supply designs.

Technical Context

This Schottky rectifier uses a planar silicon structure optimized for high-frequency switching, minimizing reverse recovery charge and eliminating minority-carrier storage delay. Its low VF–IR trade-off enables stable conduction loss performance across –65 °C to +175 °C ambient range without thermal runaway under proper heatsinking.

The device supports surge currents up to 75 A (10 ms sinusoidal) and features avalanche energy rating validated per IEC 61000-4-5. Junction-to-case thermal resistance of 2.5 °C/W allows direct mounting to PCB copper planes or external heatsinks for thermal management in space-constrained power stages.

Key Specifications

Parameter	Value and Actual Design Meaning
VRRM	100 V - Withstands repetitive reverse voltage up to 100 V without breakdown in SMPS output rectification.
IF(AV)	5 A - Sustains continuous forward current of 5 A at TC = 165 °C, suitable for mid-power DC-DC stages.
VF(typ.)	0.57 V @ 5 A, 125 °C - Low conduction loss reduces heat generation and improves efficiency in high-frequency converters.
IR(max)	4.5 mA @ 125 °C - Controlled leakage ensures stable blocking behavior in hot environments like enclosed adapters.
Rth(j-c)	2.5 °C/W - Enables predictable thermal design when mounted on ≥200 mm² copper area or external heatsink.
PARM	515 W @ tp = 10 µs - Avalanche-rated for transient overvoltage protection in flyback and LLC resonant topologies.
Tj(max)	175 °C - Supports operation in high-ambient industrial or automotive under-hood power modules.

Pinout & Package

STPS5H100H is housed in an IPAK (TO-251AA) surface-mount package with three terminals: Anode (A), Cathode (K), and NC (No Connect). The metal tab is electrically connected to the cathode and serves as primary thermal path.

Pin/Terminal	Circuit Role	Design Meaning
A	Anode	Forward current entry point; connects to input/high-side node in buck or flyback secondary.
K	Cathode	Forward current exit and thermal interface; must be soldered to large copper pour or heatsink.
NC	No Connect	Isolated mechanical pad; no electrical function-used for mechanical stability only.

Key Features

Feature	Design Value
Negligible switching losses	Zero reverse recovery time eliminates turn-off loss and EMI in >100 kHz SMPS designs.
Avalanche specification	515 W peak avalanche power rating enables robustness against inductive kickback in flyback transformers.
High Tj capability	175 °C max junction temperature allows operation in sealed enclosures without forced air cooling.
ECOPACK® compliance	Halogen-free, RoHS-compliant epoxy meets UL94 V0 flammability standard for safety-critical power supplies.
Low VF–IR trade-off	0.57 V VF and 4.5 mA IR at 125 °C balance efficiency and leakage for 24–48 V output rails.

Applications

Laptop Adapter Secondary Rectification

Industrial 24 V DC-DC Converter Output Stage

Use Scenario: High-density 65 W laptop adapter operating at 100–300 kHz switching frequency with tight thermal constraints.

IC Role / Device Role / Timing Role: Output synchronous rectifier replacing conventional diodes to reduce conduction loss and improve efficiency above 90%.

Use Value: 0.57 V VF at 5 A lowers power dissipation by ~1.2 W vs. standard Schottky, reducing heatsink size by 30%.

Use Scenario: DIN-rail mounted 24 V industrial DC-DC module requiring long-term reliability at 60 °C ambient.

IC Role / Device Role / Timing Role: Primary output rectifier in isolated forward converter with 175 °C junction rating for extended lifetime.

Use Value: 4.5 mA IR max at 125 °C prevents thermal runaway during sustained overload conditions.

Automotive Infotainment Power Supply

Telecom Point-of-Load Regulator

Use Scenario: Under-dash infotainment system with wide ambient range (–40 °C to +85 °C) and vibration exposure.

IC Role / Device Role / Timing Role: Secondary-side rectifier in isolated buck-derived topology handling load transients up to 75 A surge.

Use Value: 75 A non-repetitive surge rating withstands cold-crank and jump-start events without failure.

Use Scenario: 48 V to 3.3 V telecom PoL regulator operating at 500 kHz with strict EMI limits.

IC Role / Device Role / Timing Role: Low-noise output rectifier minimizing reverse recovery noise in sensitive RF subsystems.

Use Value: Zero reverse recovery charge eliminates switching spikes that interfere with adjacent baseband circuits.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay VS-5EY10	Same 100 V VRRM, 5 A IF(AV), but higher VF (0.82 V typ. @ 5 A, 25 °C) and no avalanche rating.	Lacks PARM specification; unsuitable for flyback topologies with transformer leakage inductance.	Prefer STPS5H100H where avalanche ruggedness or low VF at elevated temperature is required.
ON Semiconductor MBR5H100	Identical VRRM and IF(AV), but Rth(j-c) = 3.0 °C/W and IR = 6.5 mA max @ 125 °C.	Higher thermal resistance limits power density; higher leakage increases standby loss in always-on systems.	Select STPS5H100H for thermally constrained layouts or low-standby-power applications.

Compared with VS-5EY10 and MBR5H100, STPS5H100H offers superior thermal performance (2.5 °C/W), lower high-temperature leakage, and verified avalanche capability-critical for reliable operation in compact, high-reliability power converters.

Availability

STPS5H100H is available at Aetrix Electronics and suitable for laptop adapters, industrial DC-DC converters, automotive infotainment power supplies, and telecom point-of-load regulators requiring stable component supply and long-lifecycle support.

Supply support for STPS5H100H 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 industrial, automotive, and consumer markets.

STPS5H100H belongs to ST's high-voltage Schottky rectifier product line, engineered specifically for high-frequency, high-efficiency power conversion in space-constrained applications where thermal management and avalanche robustness are critical.

FAQ

What is the thermal interface requirement for STPS5H100H?

The IPAK metal tab is electrically connected to the cathode and serves as the primary thermal path. For optimal performance, solder the tab to ≥200 mm² of 2 oz copper on the PCB or attach to an external heatsink. Thermal resistance drops to 2.5 °C/W only when the tab is properly thermally coupled-no thermal compound is needed if soldered directly.

Does STPS5H100H support surface-mount reflow assembly?

Yes, STPS5H100H is qualified for standard lead-free reflow profiles (J-STD-020, peak 260 °C). Its IPAK package has a moisture sensitivity level (MSL) of 1, meaning it can be stored indefinitely at ≤30 °C/60% RH without baking prior to assembly. The epoxy meets UL94 V0 flammability requirements.

How does the avalanche rating impact circuit design?

The 515 W peak avalanche power rating (tp = 10 µs, Tj = 125 °C) allows STPS5H100H to safely absorb inductive energy from transformer leakage in flyback converters without external snubbers. This simplifies layout, reduces component count, and improves reliability during output short-circuit or startup transients.

Can STPS5H100H replace DPAK variants like STPS5H100B?

Yes-STPS5H100H (IPAK) and STPS5H100B (DPAK) share identical electrical specifications and pinout (A-K-NC), but differ in package height and thermal mass. IPAK offers greater thermal capacity (16.1 mm height vs. 10.4 mm) and slightly better Rth(j-a) in still air. Mechanical redesign is required due to footprint differences (e.g., L = 9.0–9.6 mm vs. 1.0–1.78 mm).

STPS5H100H Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-251-3 Short Leads, IPAK, TO-251AA

Packaging:: Tube

Product Status:: Obsolete

Technology:: Schottky

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

Current - Average Rectified (Io):: 5A

Voltage - Forward (Vf) (Max) @ If:: 730 mV @ 5 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 3.5 µA @ 100 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-251 (IPAK)

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

STPS5H100H FAQ

1.How can I place an order for STPS5H100H through Aetrix?

Please submit a Request for Quotation (RFQ) for STPS5H100H 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 STPS5H100H reliable?

The price and inventory of STPS5H100H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS5H100H is usually 5 days.

3.What payment methods are accepted for STPS5H100H?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS5H100H transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPS5H100H?

STPS5H100H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPS5H100H 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 STPS5H100H?

For technical support, including STPS5H100H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS5H100H requirements.

6.How does Aetrix verify that STPS5H100H is sourced from the original manufacturer or authorized distributors?

All STPS5H100H 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 STPS5H100H meets industry standards.

7.What is the process for return or replacement of STPS5H100H?

All STPS5H100H units undergo pre-shipment inspection (PSI). If there is an issue with STPS5H100H, 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 STPS5H100H part is unused and in its original packaging.

Return procedure for STPS5H100H:

1.Submit a request within 90 days.

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

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