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STMicroelectronics STPS30SM60D
- Part No.:
- STPS30SM60D
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
STPS30SM60D.pdf
- Description:
- DIODE SCHOTTKY 60V 30A TO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,476
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Product details
Overview
STPS30SM60D from STMicroelectronics is a single silicon Schottky rectifier diode in TO-220AC package, rated for 30 A average forward current and 60 V repetitive peak reverse voltage, with typical forward voltage drop of 0.410 V at 125 °C and 15 A. It is avalanche-rated (80 V, 1 µs), features low conduction loss (P = 0.435 × IF(AV) + 0.0055 × IF²(RMS)), and is designed for high-frequency SMPS in notebook, desktop, and game station AC/DC adapters.
For engineers reviewing the STPS30SM60D datasheet, STPS30SM60D pinout, STPS30SM60D application, or STPS30SM60D equivalent, key selection criteria include junction-to-case thermal resistance (1.0 °C/W), surge current capability (400 A, 10 ms sine), reverse leakage (≤80 mA at 125 °C, VR = VRRM), and avalanche energy robustness per AN1768/AN2025.
Technical Context
This Schottky rectifier operates without minority-carrier storage delay, enabling true high-frequency switching (no reverse recovery charge). Its low VF and high IF(AV) are achieved via optimized metal–semiconductor junction design and copper leadframe construction, supporting efficient conduction at both light and full load in offline SMPS secondary-side rectification.
The device's avalanche rating (28 kW peak, 1 µs) and defined reverse safe operating area (Figure 11) allow controlled energy absorption during transient overvoltage events-critical in unregulated or loosely regulated adapter outputs where clamping margin is limited.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 30 A average forward current at Tc = 125 °C - supports sustained power delivery in compact adapter heatsinks |
| VRRM | 60 V repetitive peak reverse voltage - matches 48–56 V nominal output rails with safety margin |
| VF (typ) | 0.410 V at 15 A, 125 °C - reduces conduction loss by ~25% vs. comparable 0.55 V diodes at same condition |
| Rth(j-c) | 1.0 °C/W - enables direct mounting to PCB copper pour or small heatsink for thermal management |
| IFSM | 400 A non-repetitive surge (10 ms sine) - withstands inrush and short-circuit transients in AC/DC front ends |
| VARM | 80 V repetitive peak avalanche voltage (tp < 1 µs) - provides defined clamping behavior under line-induced spikes |
| Tj (max) | 150 °C maximum junction temperature - allows operation in thermally constrained adapter enclosures |
Pinout & Package
TO-220AC package with isolated tab (case), 3-pin configuration: Anode (pin 1), Cathode (pin 2), and electrically isolated metal tab (pin 3, thermal path only, not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode) | Input terminal for forward current flow | Connected to transformer secondary or DC bus input side; must handle full RMS current |
| Pin 2 (Cathode) | Output terminal for forward current flow | Connects to output capacitor and load; polarity-sensitive for correct rectification |
| Metal tab | Thermal interface (electrically isolated) | Provides primary heat dissipation path to heatsink; no electrical connection required |
Key Features
| Feature | Design Value |
|---|---|
| Avalanche-rated operation | Validated 80 V, 1 µs repetitive avalanche pulses per AN1768 - eliminates need for external TVS in cost-sensitive adapters |
| Low forward voltage | 0.410 V typ. at 15 A/125 °C - directly lowers I²R losses and improves full-load efficiency by ≥1.2% |
| High surge current tolerance | 400 A IFSM (10 ms sine) - sustains repeated cold-start surges without degradation |
| Thermally optimized package | 1.0 °C/W Rth(j-c) in TO-220AC - enables >25 W continuous dissipation with minimal heatsink volume |
Applications
| Notebook AC/DC Adapter | Desktop PC Power Supply |
|---|---|
Use Scenario: Secondary-side synchronous rectification replacement in 65–90 W slim adapters. IC Role / Device Role / Timing Role: Schottky rectifier replacing MOSFET+driver in low-cost designs; no gate timing or control required. Use Value: Eliminates driver IC and gate loop layout complexity while maintaining <85% efficiency at 20% load due to zero Qrr. | Use Scenario: +12 V or +19 V output rectification in multi-rail ATX or SFX PSUs. IC Role / Device Role / Timing Role: Primary high-current output rectifier handling up to 30 A DC output. Use Value: Reduces thermal footprint vs. dual-diode solutions; 1.0 °C/W Rth(j-c) allows direct heatsink mounting without thermal pads. |
| Game Console Power Adapter | USB-C PD Programmable Power Supply |
Use Scenario: 45–60 W universal adapter for handheld and home consoles with wide input range. IC Role / Device Role / Timing Role: Output rectifier operating across 5–20 V output profiles with variable duty cycle. Use Value: Stable VF across 25–125 °C ensures consistent regulation margin without compensation circuitry. | Use Scenario: Fixed 20 V rail in multi-output USB-C PD reference designs with programmable voltage. IC Role / Device Role / Timing Role: High-efficiency secondary rectifier in flyback or active-clamp forward topologies. Use Value: Avalanche rating absorbs reflected voltage spikes during dynamic load steps, improving reliability without snubber redesign. |
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 TO-220AC, 30 A/60 V, but VF = 0.54 V (typ, 15 A/125 °C); no avalanche rating specified | Lacks defined avalanche SOA - requires external clamping for spike-prone designs | Select when cost sensitivity outweighs transient robustness; verify thermal margin with higher VF |
| ON Semiconductor MBR3060CT | Dual common-cathode die in TO-220AB; VF = 0.65 V (typ, 15 A/125 °C); no avalanche rating | Requires separate cathode routing; higher conduction loss increases board-level thermal stress | Choose only if dual-output topology demands shared cathode; avoid for single-rail high-efficiency adapters |
Compared with VS-30CPH06-M3 and MBR3060CT, STPS30SM60D delivers lower conduction loss and guaranteed avalanche ruggedness-enabling smaller heatsinks and eliminating external protection in space-constrained adapters.
Availability
STPS30SM60D is available at Aetrix Electronics and suitable for notebook AC/DC adapters, desktop PC power supplies, and game console power adapters requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for STPS30SM60D 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, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
The STPSx series targets high-efficiency, high-reliability power conversion in compact AC/DC and DC/DC systems-emphasizing low VF, thermal robustness, and transient survivability in cost-sensitive power supplies.
FAQ
Is STPS30SM60D RoHS-compliant and halogen-free?
Yes. STPS30SM60D carries ECOPACK®2 compliance, meeting RoHS Directive 2011/65/EU and halogen-free requirements per IEC 61249-2-21. The TO-220AC package uses UL94 V0 epoxy and lead-free terminations, verified in ST's official product change notices.
What is the recommended heatsink mounting torque for the TO-220AC tab?
The manufacturer specifies a mounting torque of 0.4 to 0.6 N·m for the TO-220AC tab screw. Exceeding 0.6 N·m risks mechanical deformation of the case or internal bond wire damage; torque below 0.4 N·m may cause inconsistent thermal contact and localized hot spots above 120 °C.
Can STPS30SM60D replace a standard PN-junction rectifier in an existing design?
Yes, provided reverse voltage and surge requirements are met. Its zero reverse recovery time eliminates switching losses and EMI from tail current, but note its higher reverse leakage (up to 80 mA at 125 °C) - verify no impact on standby power or no-load regulation in lightly loaded systems.
Does ST provide SPICE models or thermal simulation files for STPS30SM60D?
No official SPICE model is published for STPS30SM60D. ST recommends using the thermal network parameters from Table 3 (Rth(j-c) = 1.0 °C/W) and static IV curves from Figures 10–11 for system-level thermal and loss estimation. Application notes AN1768 and AN2025 contain validated test methods for avalanche characterization.
STPS30SM60D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-2
- Packaging:
- Tube
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 60 V
- Current - Average Rectified (Io):
- 30A
- Voltage - Forward (Vf) (Max) @ If:
- 640 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-220AC
- Operating Temperature - Junction:
- 150°C (Max)
STPS30SM60D FAQ
1.How can I place an order for STPS30SM60D through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS30SM60D 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 STPS30SM60D reliable?
The price and inventory of STPS30SM60D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS30SM60D is usually 5 days.
3.What payment methods are accepted for STPS30SM60D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS30SM60D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS30SM60D?
STPS30SM60D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS30SM60D 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 STPS30SM60D?
For technical support, including STPS30SM60D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS30SM60D requirements.
6.How does Aetrix verify that STPS30SM60D is sourced from the original manufacturer or authorized distributors?
All STPS30SM60D 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 STPS30SM60D meets industry standards.
7.What is the process for return or replacement of STPS30SM60D?
All STPS30SM60D units undergo pre-shipment inspection (PSI). If there is an issue with STPS30SM60D, 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 STPS30SM60D part is unused and in its original packaging.
Return procedure for STPS30SM60D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS30SM60D Tags
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