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STMicroelectronics STPS30M60ST
- Part No.:
- STPS30M60ST
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-220-3
- Datasheet:
-
STPS30M60ST.pdf
- Description:
- DIODE SCHOTTKY 60V 30A TO220
- Quantity:
- Payment:
- Shipping:
Inventory:2,638
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Product details
Overview
STPS30M60ST from STMicroelectronics is a single silicon Schottky rectifier diode in TO-220AB package, rated for 30 A average forward current and 60 V repetitive peak reverse voltage, with typical forward voltage drop of 0.380 V at 125 °C and 30 A. It is avalanche-rated (80 V max repetitive peak avalanche voltage), thermally optimized for conduction cooling, and designed for high-frequency switch-mode power supplies in notebook and desktop adapters.
For engineers reviewing the STPS30M60ST datasheet, STPS30M60ST pinout, STPS30M60ST application, or STPS30M60ST equivalent, key selection criteria include low VF at high temperature, junction-to-case thermal resistance of 0.9 °C/W, avalanche energy capability (34.4 kW pulse), and TO-220AB mechanical compatibility with standard heatsink mounting.
Technical Context
This Schottky diode operates without minority-carrier storage, enabling zero reverse recovery time and minimal switching losses in high-frequency DC/DC converters. Its metal–semiconductor junction delivers low forward conduction loss while maintaining stable performance up to 150 °C junction temperature.
The device is characterized by a defined reverse safe operating area (SOA) for transient avalanche conditions (tp < 1 µs), validated per AN1768/AN2025, and supports surge non-repetitive forward current up to 600 A (10 ms sine-wave). Thermal design relies on direct case-to-heatsink conduction via the tab (terminal 3).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 30 A - maximum continuous DC forward current at Tc = 130 °C, defining steady-state power delivery capability |
| VRRM | 60 V - maximum repetitive reverse blocking voltage, setting upper limit for output rectification in 48 V and lower bus applications |
| VF (typ) | 0.380 V @ 30 A, 125 °C - low conduction loss directly reducing I²R heating and improving adapter efficiency at full load |
| IFSM | 600 A - surge current rating for 10 ms sine-wave, supporting inrush and fault-current robustness |
| Rth(j-c) | 0.9 °C/W - thermal resistance from junction to case, enabling predictable heatsink sizing for 30 A operation |
| VARM | 80 V - maximum repetitive peak avalanche voltage (tp < 1 µs), allowing controlled clamping during transient overvoltage events |
| Tj (max) | 150 °C - absolute maximum junction temperature, defining thermal derating envelope for long-term reliability |
Pinout & Package
Packaged in TO-220AB - a through-hole, single-ended, insulated-tab power package with three terminals: anode (pin 1), cathode (pin 2), and electrically connected metal tab (pin 3, cathode). Mounting torque: 0.4–0.6 N·m.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Input terminal for forward current flow; connects to transformer secondary or switching node |
| Pin 2 | Cathode | Output terminal for forward current; ties to output capacitor and load return path |
| Tab (Pin 3) | Cathode (electrically tied to Pin 2) | Primary thermal path to heatsink; must be electrically isolated if chassis ground is not cathode-referenced |
Key Features
| Feature | Design Value |
|---|---|
| Avalanche-rated operation | Validated 80 V repetitive peak avalanche voltage enables reliable transient clamping without external TVS |
| Low VF at elevated temperature | 0.380 V typ @ 125 °C / 30 A reduces conduction loss drift under thermal stress in compact adapters |
| High-frequency suitability | Zero reverse recovery time eliminates switching loss and EMI associated with minority-carrier recovery |
| Thermally optimized package | TO-220AB tab provides 0.9 °C/W Rth(j-c), supporting >30 A continuous operation with passive heatsinking |
Applications
| Notebook AC-DC Adapters | Desktop PC Power Supplies |
|---|---|
|
Use Scenario: Secondary-side synchronous rectification in 19–24 V output flyback or LLC converters powering ultrabooks and thin-and-light systems. IC Role / Device Role / Timing Role: Primary output rectifier replacing conventional PN diodes to reduce conduction loss and improve light-load efficiency. Use Value: Enables >90% efficiency at 20 W–65 W loads while maintaining thermal margin within slim chassis constraints. |
Use Scenario: +12 V and +5 V rail rectification in ATX PSUs with active PFC front-end and resonant topology. IC Role / Device Role / Timing Role: High-current freewheeling and output rectification element handling sustained 20–30 A DC output. Use Value: Delivers stable 30 A average current with <0.4 V forward drop at 125 °C, minimizing heatsink size and cost. |
| Gaming Console Power Adapters | Industrial Embedded Power Modules |
|
Use Scenario: Compact 12 V/3 A–5 A auxiliary supply in portable game station adapters requiring high reliability under intermittent peak loads. IC Role / Device Role / Timing Role: Output rectifier subjected to repeated 2×–3× IF surges during controller hot-plug and display wake-up transients. Use Value: Avalanche rating (80 V) and 600 A IFSM withstand repeated line transients without degradation. |
Use Scenario: DC input protection and reverse polarity safeguard in 24 V industrial control modules with battery backup. IC Role / Device Role / Timing Role: Reverse-blocking diode in OR-ing configuration or input crowbar circuit for redundant power inputs. Use Value: Low VF minimizes voltage drop across input path; 150 °C Tj rating ensures operation in sealed enclosures up to 85 °C ambient. |
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-247AC package; VF = 0.52 V @ 30 A, 125 °C | Higher thermal mass but larger footprint; requires different heatsink interface | Select when higher surge immunity (IFSM = 1000 A) and lower Rth(j-c) (0.5 °C/W) justify TO-247 layout change |
| ON Semiconductor MBR3060CT | Dual common-cathode die in TO-220AB; each diode rated 30 A, VF = 0.72 V @ 30 A, 125 °C | Not single-diode; higher VF increases conduction loss by ~85% vs. STPS30M60ST | Only consider if dual-output topology requires shared cathode; otherwise avoid due to efficiency penalty |
Compared with VS-30CPH06-M3 and MBR3060CT, STPS30M60ST offers the lowest VF at high temperature in TO-220AB, delivering superior efficiency in space-constrained adapters where thermal resistance and voltage drop are co-critical.
Availability
STPS30M60ST is available at Aetrix Electronics and suitable for notebook AC-DC adapters, desktop PC power supplies, and gaming console power bricks requiring stable component supply, consistent thermal performance, and long-lifecycle availability.
Supply support for STPS30M60ST 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.
The STPS series targets high-efficiency power conversion, with STPS30M60ST specifically engineered for high-frequency, thermally constrained secondary-side rectification in compact AC-DC adapters.
FAQ
Is STPS30M60ST suitable for surface-mount assembly?
No. STPS30M60ST uses the TO-220AB package with through-hole leads and an insulated metal tab, requiring wave soldering or manual insertion. It is not compatible with reflow SMT processes. For SMT alternatives, consider ST's D2PAK variant STPS30M60SG-TR.
What is the maximum allowable case temperature for continuous 30 A operation?
The datasheet specifies IF(AV) = 30 A at Tc = 130 °C. Exceeding this case temperature risks exceeding the 150 °C maximum junction temperature, especially with Rth(j-c) = 0.9 °C/W. Derating is required above 130 °C; at 140 °C case, max IF(AV) drops to ~22 A.
Does STPS30M60ST require a heatsink in all applications?
Yes - the TO-220AB tab is the primary thermal path. Without heatsinking, power dissipation exceeds safe limits even at modest currents. At 30 A and VF ≈ 0.47 V, conduction loss is ~14.1 W; with Rth(j-c) = 0.9 °C/W, junction temperature rise alone is 12.7 °C - but ambient and interface resistances must also be accounted for.
How does the avalanche rating impact system-level design?
The 80 V VARM rating allows the diode to safely clamp short-duration (<1 µs) overvoltage transients without failure, reducing need for external TVS devices in adapter outputs. This simplifies BOM and improves reliability in unregulated or lightly loaded conditions where transformer leakage inductance causes voltage spikes.
STPS30M60ST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 60 V
- Current - Average Rectified (Io):
- 30A
- Voltage - Forward (Vf) (Max) @ If:
- 590 mV @ 30 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 165 µA @ 60 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
- Operating Temperature - Junction:
- 150°C (Max)
STPS30M60ST FAQ
1.How can I place an order for STPS30M60ST through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS30M60ST 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 STPS30M60ST reliable?
The price and inventory of STPS30M60ST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS30M60ST is usually 5 days.
3.What payment methods are accepted for STPS30M60ST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS30M60ST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS30M60ST?
STPS30M60ST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS30M60ST 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 STPS30M60ST?
For technical support, including STPS30M60ST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS30M60ST requirements.
6.How does Aetrix verify that STPS30M60ST is sourced from the original manufacturer or authorized distributors?
All STPS30M60ST 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 STPS30M60ST meets industry standards.
7.What is the process for return or replacement of STPS30M60ST?
All STPS30M60ST units undergo pre-shipment inspection (PSI). If there is an issue with STPS30M60ST, 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 STPS30M60ST part is unused and in its original packaging.
Return procedure for STPS30M60ST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS30M60ST Tags
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