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

STMicroelectronics STPS30SM60ST

Name: STPS30SM60ST
Brand: STMicroelectronics
SKU: STPS30SM60ST
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPS30SM60ST

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: TO-220-3

Datasheet:: STPS30SM60ST.pdf

Description:: DIODE SCHOTTKY 60V 30A TO220

Quantity:: RFQ Add To RFQ list

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Inventory:8,620

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Product details

Overview

STPS30SM60ST from STMicroelectronics is a single silicon Schottky power rectifier in TO-220AB package, rated for 30 A average forward current and 60 V repetitive peak reverse voltage, with typical forward voltage drop of 0.405 V at 125 °C and 30 A. It is avalanche-rated (80 V, 1 µs), features low conduction loss (R_th(j-c) = 1.0 °C/W), and is designed for high-frequency SMPS in notebook/desktop adapters.

For engineers reviewing the STPS30SM60ST datasheet, STPS30SM60ST pinout, STPS30SM60ST application, or STPS30SM60ST equivalent, key selection criteria include forward voltage at high junction temperature, surge current capability (600 A IFSM), thermal resistance, avalanche energy rating, and TO-220AB mechanical compatibility with heatsink mounting.

Technical Context

The STPS30SM60ST operates as a unidirectional power rectifier with zero recovery time and no minority-carrier storage, enabling efficient high-frequency switching in AC/DC front-ends. Its Schottky barrier structure delivers low VF across load range while maintaining stable performance up to 150 °C junction temperature.

It supports pulse avalanche operation up to 28 kW (1 µs) and complies with UL94 V0 epoxy packaging. Thermal design relies on case-to-heatsink conduction (torque 0.4–0.6 N·m), with R_th(j-c) = 1.0 °C/W enabling compact thermal solutions in space-constrained adapters.

Key Specifications

Parameter	Value and Actual Design Meaning
IF(AV)	30 A - Sustained DC output current capability at Tc = 125 °C, defining continuous power delivery in adapter secondary-side rectification.
VRRM	60 V - Maximum repetitive reverse blocking voltage, suitable for 48 V nominal input systems with margin against transient overshoot.
VF (typ)	0.405 V @ 30 A, 125 °C - Low conduction loss directly reduces power dissipation and improves full-load efficiency in high-current SMPS designs.
IFSM	600 A @ 10 ms sine - Robust surge handling enables reliable startup and fault tolerance without derating in consumer power supplies.
Rth(j-c)	1.0 °C/W - Predictable thermal path from junction to case allows precise heatsink sizing using standard TO-220AB mounting practices.
VARM	80 V @ tp < 1 µs - Avalanche-rated clamping voltage ensures safe operation during inductive switching transients without external snubbers.

Pinout & Package

TO-220AB package with isolated tab (pin 1: anode, pin 2: cathode, pin 3: tab/cathode). Mounting via M3 screw with 0.4–0.6 N·m torque; tab electrically connected to cathode for direct heatsink coupling.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Anode	Main AC/DC input connection point; carries full forward current into device; requires PCB trace width matching 30 A continuous rating.
Pin 2	Cathode	DC output node; tied internally to metal tab; serves as primary return path and thermal interface to heatsink.
Tab (Pin 3)	Cathode / Thermal Interface	Electrically identical to Pin 2; provides low-impedance thermal conduction path to heatsink; must be insulated if heatsink is grounded.

Key Features

Feature	Design Value
High current capability	30 A IF(AV) at 125 °C case temperature enables use in >100 W adapter outputs without parallel devices.
Avalanche rated	80 V VARM (1 µs) and 28 kW PARM allow safe operation under inductive turn-off stress without external protection components.
Low forward voltage drop	0.405 V typ. at 30 A/125 °C reduces conduction loss by ~30% vs. comparable Si fast recovery diodes, improving light- and full-load efficiency.
High frequency operation	Zero reverse recovery charge (Qrr = 0) eliminates switching loss and EMI associated with minority-carrier diodes in >100 kHz SMPS topologies.

Applications

Notebook Adapter Secondary Rectification

Desktop PC Power Supply Output Stage

Use Scenario: 19–20 V, 3–6 A output stage in compact external AC/DC adapters.

IC Role / Device Role / Timing Role: Primary synchronous rectifier replacing MOSFET drivers; conducts DC output current with minimal loss.

Use Value: 0.405 V VF at 30 A lowers thermal load on small heatsinks, enabling <15 mm profile adapters meeting CoC Tier 2 efficiency.

Use Scenario: +12 V rail rectification in ATX PSUs delivering up to 30 A continuous current.

IC Role / Device Role / Timing Role: High-current freewheeling diode in LLC resonant converter secondary side.

Use Value: Avalanche rating absorbs leakage inductance spikes during zero-voltage switching transitions, eliminating need for clamp circuits.

Game Console Power Adapter

USB-C PD Fast Charging Adapter

Use Scenario: 12–15 V, 4–8 A output in portable gaming system adapters subject to frequent thermal cycling.

IC Role / Device Role / Timing Role: Main output rectifier operating continuously at 125 °C junction temperature.

Use Value: Stable VF over temperature (0.405 V typ. @ 125 °C) maintains consistent efficiency across ambient range (-20 to +50 °C).

Use Scenario: 20 V PPS output stage in 65 W USB-C PD adapters requiring high reliability at 100+ kHz switching.

IC Role / Device Role / Timing Role: High-frequency Schottky rectifier in synchronous rectification circuit with adaptive gate control.

Use Value: Zero Qrr prevents shoot-through risk and enables clean turn-off timing critical for PPS voltage regulation accuracy.

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-30CPH06-M3	Same 60 V VRRM, 30 A IF(AV), but TO-247 package; VF = 0.52 V @ 30 A/125 °C; Rth(j-c) = 0.9 °C/W.	Higher thermal performance but larger footprint; requires different heatsink interface and PCB layout.	Select when board space permits TO-247 and lower thermal resistance is prioritized over mechanical compatibility.
ON Semiconductor SB360-E3/54	60 V VRRM, 3.0 A IF(AV); TO-220AC package; VF = 0.62 V @ 3 A/25 °C; not avalanche-rated.	Not scalable to 30 A; lacks surge and avalanche robustness required for high-power adapter use.	Only suitable for low-current auxiliary rails (<5 A); not a functional replacement for main output rectification.

Compared with VS-30CPH06-M3, STPS30SM60ST offers identical voltage/current ratings in TO-220AB-enabling drop-in mechanical replacement-while trading 0.115 V higher VF for proven avalanche ruggedness and ST's ECOPACK® compliance. SB360-E3/54 is underspecified for this application and cannot replace it.

Availability

STPS30SM60ST is available at Aetrix Electronics and suitable for notebook adapters, desktop PC power supplies, game console chargers, and USB-C PD fast charging systems requiring stable component supply and long-term industrial availability.

Supply support for STPS30SM60ST 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.

This device belongs to ST's Power Schottky Rectifier product line, engineered specifically for high-efficiency, high-reliability AC/DC conversion in consumer power adapters where low VF, thermal stability, and avalanche safety are critical.

FAQ

Is STPS30SM60ST RoHS and REACH compliant?

Yes, STPS30SM60ST is manufactured in ST's ECOPACK®-compliant process and meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. The TO-220AB package uses lead-free terminations and halogen-free epoxy conforming to UL94 V0.

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

Per Figure 11 in the datasheet, a 30 cm² copper surface (35 µm thick) under the tab yields R_th(j-a) ≈ 25 °C/W. For optimal thermal performance in adapters, ST recommends ≥20 cm² of inner-layer copper connected via ≥6 thermal vias (0.3 mm diameter) to the tab pad.

Can STPS30SM60ST be used in synchronous rectification circuits?

No-it is a passive Schottky diode, not a synchronous rectifier IC. It functions as a self-commutated rectifier and does not integrate gate drive or control logic. In synchronous designs, it may serve as a backup or freewheeling path alongside actively controlled MOSFETs.

Does ST provide SPICE models for STPS30SM60ST?

ST does not publish a dedicated SPICE model for STPS30SM60ST. However, its electrical behavior can be approximated using standard Schottky diode models with parameters extracted from Table 4: VF = 0.405 V, IS = 1.35×10⁻⁴ A (at 25 °C), and N = 1.05, validated against Figure 10 forward I-V curves.

STPS30SM60ST Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Obsolete

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 60 V

Current - Average Rectified (Io):: 30A

Voltage - Forward (Vf) (Max) @ If:: 615 mV @ 30 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 135 µA @ 60 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220

Operating Temperature - Junction:: 150°C (Max)

STPS30SM60ST FAQ

1.How can I place an order for STPS30SM60ST through Aetrix?

Please submit a Request for Quotation (RFQ) for STPS30SM60ST 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 STPS30SM60ST reliable?

The price and inventory of STPS30SM60ST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS30SM60ST is usually 5 days.

3.What payment methods are accepted for STPS30SM60ST?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS30SM60ST transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPS30SM60ST?

STPS30SM60ST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPS30SM60ST 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 STPS30SM60ST?

For technical support, including STPS30SM60ST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS30SM60ST requirements.

6.How does Aetrix verify that STPS30SM60ST is sourced from the original manufacturer or authorized distributors?

All STPS30SM60ST 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 STPS30SM60ST meets industry standards.

7.What is the process for return or replacement of STPS30SM60ST?

All STPS30SM60ST units undergo pre-shipment inspection (PSI). If there is an issue with STPS30SM60ST, 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 STPS30SM60ST part is unused and in its original packaging.

Return procedure for STPS30SM60ST:

1.Submit a request within 90 days.

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

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