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

STMicroelectronics STPS5H100B-TR

Name: STPS5H100B-TR
Brand: STMicroelectronics
SKU: STPS5H100B-TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPS5H100B-TR

Manufacturer:: STMicroelectronics

Category:: Single Diodes

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

Datasheet:: STPS5H100B-TR.pdf

Description:: DIODE SCHOTTKY 100V 5A DPAK

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Product details

Overview

STPS5H100B-TR from STMicroelectronics is a high-voltage Schottky barrier rectifier in DPAK 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, designed for compact high-frequency SMPS in AC-DC adapters and on-board DC-DC converters.

For engineers reviewing the STPS5H100B-TR datasheet, STPS5H100B-TR pinout, STPS5H100B-TR application, or STPS5H100B-TR equivalent, key selection criteria include thermal resistance (2.5 °C/W junction-to-case), avalanche rating (515 W, 10 µs), leakage current (4.5 mA max at 125 °C), and ECOPACK® compliance for industrial power supply design.

Technical Context

This Schottky rectifier uses a planar silicon structure optimized for high-voltage operation while maintaining low conduction loss. Its avalanche-rated capability enables robustness against transient overvoltage events in unregulated or loosely regulated DC-DC stages.

The device operates with minimal reverse recovery charge due to majority-carrier conduction, eliminating minority-carrier storage delay. Thermal performance is defined by a fixed junction-to-case resistance of 2.5 °C/W, requiring direct thermal coupling to a heatsink via the exposed cathode tab.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum repetitive reverse blocking voltage before breakdown; sets upper limit for input voltage rails in offline or boost-derived supplies.
I_F(AV)	5 A - Average forward current at T_C = 165 °C; defines continuous output current capability in thermally managed designs.
V_F(typ.)	0.57 V @ 5 A, 125 °C - Low forward drop reduces conduction loss and improves efficiency in high-duty-cycle converters.
I_R(max)	4.5 mA @ 125 °C - Low leakage preserves regulation in standby mode and minimizes no-load power draw.
R_th(j-c)	2.5 °C/W - Enables precise junction temperature estimation when mounted on a heatsink; critical for thermal derating analysis.
P_ARM	515 W @ 10 µs, T_j = 125 °C - Avalanche energy rating supports surge immunity without external clamping in flyback or buck-boost topologies.

Pinout & Package

STPS5H100B-TR is housed in a surface-mount DPAK (TO-252) package with three terminals: Anode (A), Cathode (K), and Non-Connected (NC) tab. The exposed metal tab serves as the cathode and provides primary thermal path to PCB copper.

Pin/Terminal	Circuit Role	Design Meaning
A	Anode	Input terminal for forward current flow; connects to higher-potential node (e.g., switch node or transformer secondary).
K	Cathode	Output terminal and thermal interface; must be soldered to ≥200 mm² copper pour for effective heat dissipation.
NC	Non-connected tab	Electrically isolated mechanical support; no electrical function but contributes to mechanical stability and thermal mass.

Key Features

Feature	Design Value
Negligible switching losses	Majority-carrier conduction eliminates reverse recovery time, enabling >500 kHz operation without snubbers.
High junction temperature capability	Rated up to 175 °C junction temperature supports operation in sealed enclosures or high-ambient environments.
Good trade-off between leakage and V_F	0.57 V forward drop at 125 °C with only 4.5 mA leakage balances efficiency and standby power.
Avalanche specification	515 W single-pulse avalanche rating allows safe handling of inductive turn-off transients in non-synchronous topologies.
ECOPACK® compliant	Meets RoHS and halogen-free requirements; UL94 V0 epoxy ensures flame resistance in safety-critical power systems.

Applications

Laptop AC Adapter Secondary Rectification

Industrial DC-DC Converter Output Stage

Use Scenario: High-efficiency 19 V/4.74 A output stage in compact 90 W laptop adapter operating at 100–240 VAC input.

IC Role / Device Role / Timing Role: Schottky rectifier replacing fast recovery diode to reduce conduction loss and improve light-load efficiency.

Use Value: 0.57 V forward drop at 125 °C lowers output rectification loss by ~35% vs. standard 1N5822, directly improving full-load efficiency by 1.2%.

Use Scenario: 12 V output rectification in 48 V-to-12 V isolated DC-DC module for factory automation I/O controllers.

IC Role / Device Role / Timing Role: Primary output rectifier in synchronous-buck derived topology where low V_F and thermal robustness are critical.

Use Value: 2.5 °C/W R_th(j-c) enables stable 5 A operation at 70 °C ambient with 40 mm² thermal pad, avoiding forced-air cooling.

USB-C PD Power Delivery Module

Telecom PoE Midspan Rectification

Use Scenario: 20 V output rectification in 60 W USB-C PD source module with tight thermal envelope and no heatsink.

IC Role / Device Role / Timing Role: High-reliability Schottky rectifier handling pulsed 3 A loads during dynamic voltage negotiation.

Use Value: Avalanche rating absorbs 10 µs transients from cable hot-plug events, eliminating need for parallel TVS diodes.

Use Scenario: 57 V output rectification in IEEE 802.3at PoE midspan injector supplying 30 W to remote IP cameras.

IC Role / Device Role / Timing Role: High-voltage Schottky rectifier selected for low leakage to maintain Class 4 power budget under elevated ambient temperatures.

Use Value: 4.5 mA max leakage at 125 °C prevents >1.5 W standby loss per channel, preserving PoE power classification margin.

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
ON Semiconductor SB5100	Same V_RRM (100 V), higher V_F (0.85 V typ. @ 5 A), lower I_R (1.0 mA @ 125 °C), DPAK package.	Better leakage performance but 49% higher conduction loss at full load; suited for low-power, high-temperature standby circuits.	Select when leakage-limited standby efficiency dominates over full-load thermal management.
Vishay VS-50WQ10	Higher I_F(AV) (5.5 A), same V_F range, no avalanche rating, TO-220AC package with insulated tab.	Requires through-hole mounting and isolation hardware; lacks pulse avalanche robustness for unclamped inductive switching.	Choose only if board layout mandates through-hole and system-level clamping is already implemented.

Compared with SB5100 and VS-50WQ10, STPS5H100B-TR uniquely combines avalanche ruggedness, low V_F, and surface-mount DPAK packaging-making it optimal for space-constrained, high-reliability SMPS where transient immunity and thermal density are co-constrained.

Availability

STPS5H100B-TR is available at Aetrix Electronics and suitable for laptop AC adapters, industrial DC-DC converters, USB-C PD modules, and telecom PoE injectors requiring stable component supply across multi-year production cycles.

Supply support for STPS5H100B-TR 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 automotive, industrial, and consumer markets.

STPS5H100B-TR belongs to ST's high-voltage Schottky rectifier product line, engineered specifically for high-frequency, high-efficiency power conversion in compact form factors where thermal density and transient robustness are critical.

FAQ

Is STPS5H100B-TR pin-compatible with STPS5H100H?

No. STPS5H100B-TR uses DPAK (TO-252) packaging with three terminals (A, K, NC), while STPS5H100H uses IPAK (TO-251) with different lead pitch and thermal pad geometry. Footprint and solder stencil must be redesigned for IPAK; thermal resistance also differs (2.5 °C/W vs. 3.0 °C/W).

What is the maximum allowable PCB copper area for thermal relief in STPS5H100B-TR?

The DPAK footprint in Figure 10 specifies a recommended 5.0 × 5.5 mm thermal pad. For optimal R_th(j-a), ST recommends ≥200 mm² of 2-oz copper connected to the cathode tab via ≥4 thermal vias (0.3 mm diameter, filled). Larger copper areas yield diminishing returns beyond 400 mm².

Does STPS5H100B-TR require a heatsink for 5 A continuous operation?

Not necessarily. At 5 A and 125 °C junction temperature, the 2.5 °C/W R_th(j-c) requires ≤12.5 °C rise from case to ambient. With a well-designed 200 mm² copper pad and still air, case temperature typically stays <65 °C-well within limits. Forced airflow or heatsink is needed only above 70 °C ambient or >6 A RMS.

Can STPS5H100B-TR replace a standard PN-junction rectifier like 1N5408 in a linear power supply?

No. STPS5H100B-TR is a Schottky rectifier with 100 V V_RRM and 5 A rating, but its 0.57 V forward drop is advantageous only in high-frequency switching applications. In 50/60 Hz linear supplies, its higher leakage (up to 4.5 mA at 125 °C) risks overheating and instability versus the 1N5408's <5 µA leakage at same temperature.

STPS5H100B-TR 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):: 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:: Surface Mount

Supplier Device Package:: DPAK

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

STPS5H100B-TR FAQ

1.How can I place an order for STPS5H100B-TR through Aetrix?

Please submit a Request for Quotation (RFQ) for STPS5H100B-TR 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 STPS5H100B-TR reliable?

The price and inventory of STPS5H100B-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS5H100B-TR is usually 5 days.

3.What payment methods are accepted for STPS5H100B-TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS5H100B-TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPS5H100B-TR?

STPS5H100B-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPS5H100B-TR 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 STPS5H100B-TR?

For technical support, including STPS5H100B-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS5H100B-TR requirements.

6.How does Aetrix verify that STPS5H100B-TR is sourced from the original manufacturer or authorized distributors?

All STPS5H100B-TR 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 STPS5H100B-TR meets industry standards.

7.What is the process for return or replacement of STPS5H100B-TR?

All STPS5H100B-TR units undergo pre-shipment inspection (PSI). If there is an issue with STPS5H100B-TR, 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 STPS5H100B-TR part is unused and in its original packaging.

Return procedure for STPS5H100B-TR:

1.Submit a request within 90 days.

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

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