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STMicroelectronics STPS30SM60SR
- Part No.:
- STPS30SM60SR
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Datasheet:
-
STPS30SM60SR.pdf
- Description:
- DIODE SCHOTTKY 60V 30A I2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:4,538
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Product details
Overview
STPS30SM60SR from STMicroelectronics is a single silicon Schottky power rectifier in I2PAK 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 max single-pulse), thermally optimized for conduction cooling, and deployed in high-frequency AC-DC adapters for notebooks and desktop PCs.
For engineers reviewing the STPS30SM60SR datasheet, STPS30SM60SR pinout, STPS30SM60SR application, or STPS30SM60SR equivalent, key selection criteria include forward voltage drop at high junction temperature, avalanche energy handling under transient overvoltage, thermal resistance (1.0 °C/W junction-to-case), and package-specific mounting torque (0.4–0.6 N·m) for reliable thermal interface integrity.
Technical Context
This Schottky diode operates without minority-carrier storage delay, enabling high-frequency switching (>100 kHz) in SMPS secondary-side rectification. Its low VF minimizes conduction loss-calculated as P = 0.440 × IF(AV) + 0.0043 × IF²(RMS)-and its 150 °C maximum junction temperature supports operation under sustained load in compact adapter designs.
The device is validated for repetitive avalanche energy (28 kW peak, 1 µs pulse) and features a defined reverse safe operating area (SOA) up to 105 A and 80 V for <1 µs pulses. Thermal impedance is stable across pulse durations ≥100 µs, supporting consistent derating per Figure 4 and Figure 5.
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 circuits |
| VRRM | 60 V - Maximum repetitive reverse blocking voltage, setting minimum input-output voltage margin in 19–24 V output adapters |
| VF (typ) | 0.405 V @ 30 A, 125 °C - Low conduction loss directly reducing heat generation and improving full-load efficiency |
| Rth(j-c) | 1.0 °C/W - Enables predictable thermal design when mounted on heatsink; 30 W dissipation yields ≤30 K rise above case |
| IFSM | 600 A @ 10 ms sine - Withstands inrush and short-circuit surge currents without failure in unregulated output stages |
| VARM / VASM | 80 V @ tp < 1 µs - Specifies clamping voltage during fast transients, protecting downstream circuitry in non-isolated topologies |
| Tj (max) | 150 °C - Junction temperature limit requiring thermal management coordination between PCB copper area and mechanical mounting |
Pinout & Package
Package: I2PAK (TO-263AB), surface-mount with isolated tab (pin 3), thermally enhanced for conduction cooling. Mounting torque: 0.4–0.6 N·m.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode) | Input terminal for forward current flow | Connected to transformer secondary or switching node; carries full load current with minimal voltage offset |
| Pin 2 (Cathode) | Output terminal for forward current flow | Connects to output filter capacitor and load; low VF ensures minimal voltage sag under dynamic load steps |
| Pin 3 (Tab / Cathode) | Electrically connected cathode and thermal path | Must be electrically isolated from heatsink but thermally coupled; provides primary heat extraction path (Rth(j-c) = 1.0 °C/W) |
Key Features
| Feature | Design Value |
|---|---|
| Avalanche-rated operation | Validated for repetitive 28 kW peak avalanche power (tp = 1 µs), enabling robustness against line transients and no-snubber designs |
| Low forward voltage drop | 0.405 V typ. @ 30 A/125 °C reduces conduction loss by ~35% vs. comparable 60 V Si diodes, directly improving adapter efficiency at high load |
| High-frequency suitability | No reverse recovery charge (Qrr ≈ 0), eliminating switching loss and EMI associated with minority-carrier diodes in >100 kHz SMPS |
| Thermally optimized package | I2PAK's low Rth(j-c) and isolated tab allow direct heatsink mounting without insulating pads, simplifying thermal layout and reducing assembly cost |
Applications
| Notebook AC-DC Adapter | Desktop PC Power Supply |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 19–20 V, 3–6 A output adapters with <500 kHz switching frequency. IC Role / Device Role / Timing Role: Uncontrolled Schottky rectifier replacing MOSFET gate drivers and control logic in cost-sensitive designs. Use Value: Delivers >92% full-load efficiency with 0.405 V VF and eliminates Qrr-related losses, reducing heatsink size by 40% vs. standard FRD solutions. | Use Scenario: +12 V rail rectification in ATX PSUs with active PFC front-end and LLC resonant converter stage. IC Role / Device Role / Timing Role: High-current freewheeling diode in secondary synchronous rectifier auxiliary winding snubbing networks. Use Value: Avalanche rating absorbs leakage inductance spikes without external TVS, simplifying BOM and improving reliability under overload conditions. |
| Game Console Power Adapter | USB-C PD Portable Charger |
Use Scenario: Dual-output (5 V + 12 V) flyback adapter powering game station mainboard and peripherals. IC Role / Device Role / Timing Role: Primary output rectifier for 12 V rail delivering up to 30 A peak during GPU-intensive operation. Use Value: 150 °C Tj rating and 1.0 °C/W Rth(j-c) support sustained 25 A load without thermal throttling, maintaining stable voltage regulation. | Use Scenario: 20 V/3 A USB-C PD 3.0 portable charger using quasi-resonant flyback topology. IC Role / Device Role / Timing Role: Output rectifier selected for zero-recovery advantage in high-density, fanless enclosures. Use Value: Low VF and absence of reverse recovery minimize audible noise and EMI, meeting CISPR-32 Class B emissions without added filtering. |
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; Rth(j-c) = 0.9 °C/W; VF = 0.52 V @ 30 A/125 °C | Higher thermal performance but larger footprint; requires through-hole PCB layout and different mounting hardware | Select when board space allows TO-247 and lower thermal resistance is prioritized over surface-mount assembly |
| ON Semiconductor MBR3060CT | Dual common-cathode configuration in TO-220 package; each die rated 15 A; VF = 0.68 V @ 15 A/125 °C; no avalanche rating | Not single-die replacement; lacks avalanche validation and has higher VF, increasing conduction loss by ~65% | Acceptable only in non-transient-prone, low-cost adapters where surge immunity is managed externally |
Compared with VS-30CPH06-M3, STPS30SM60SR offers superior surface-mount integration and lower VF but slightly higher thermal resistance; versus MBR3060CT, it delivers verified avalanche ruggedness and 30% lower conduction loss, making it preferable for compact, high-reliability adapters.
Availability
STPS30SM60SR is available at Aetrix Electronics and suitable for notebook adapters, desktop PC power supplies, game console chargers, and USB-C PD portable chargers requiring stable component supply and long-term industrial availability.
Supply support for STPS30SM60SR 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 AC-DC conversion, with STPS30SM60SR specifically engineered for thermally constrained, high-frequency switch-mode power adapters where low VF and avalanche robustness are critical.
FAQ
What is the recommended PCB copper area for thermal management of STPS30SM60SR?
Per Figure 11, a minimum 25 cm² of 35 µm thick copper under the tab reduces Rth(j-a) to ~25 °C/W. For ambient temperatures up to 50 °C and 30 A load, this area limits junction temperature to ~135 °C, staying within the 150 °C absolute maximum rating.
Does STPS30SM60SR require a heatsink in typical adapter applications?
Yes-though the I2PAK package enables direct heatsink mounting, a mechanically attached aluminum heatsink (≥100 cm², 10 mm thick) is required to maintain Tj ≤ 125 °C at full 30 A load with 25 °C ambient. Without it, junction temperature exceeds rating within seconds under sustained load.
Can STPS30SM60SR replace a standard PN-junction rectifier in an existing 60 V design?
Yes, provided the original design uses a 60 V, ≥30 A rectifier and does not rely on reverse recovery for timing functions. STPS30SM60SR eliminates reverse recovery loss and reduces forward drop, but its zero Qrr means snubber circuits designed for PN diodes may need re-optimization to avoid voltage overshoot.
Is STPS30SM60SR compliant with RoHS and REACH regulations?
Yes-STPS30SM60SR carries ECOPACK®2 compliance, meeting RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. The epoxy molding compound is UL94 V0 rated, and lead finish is matte tin, fully compatible with lead-free reflow profiles.
STPS30SM60SR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- 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:
- I2PAK
- Operating Temperature - Junction:
- 150°C (Max)
STPS30SM60SR FAQ
1.How can I place an order for STPS30SM60SR through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS30SM60SR 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 STPS30SM60SR reliable?
The price and inventory of STPS30SM60SR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS30SM60SR is usually 5 days.
3.What payment methods are accepted for STPS30SM60SR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS30SM60SR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS30SM60SR?
STPS30SM60SR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS30SM60SR 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 STPS30SM60SR?
For technical support, including STPS30SM60SR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS30SM60SR requirements.
6.How does Aetrix verify that STPS30SM60SR is sourced from the original manufacturer or authorized distributors?
All STPS30SM60SR 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 STPS30SM60SR meets industry standards.
7.What is the process for return or replacement of STPS30SM60SR?
All STPS30SM60SR units undergo pre-shipment inspection (PSI). If there is an issue with STPS30SM60SR, 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 STPS30SM60SR part is unused and in its original packaging.
Return procedure for STPS30SM60SR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS30SM60SR Tags
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BAV21W-7-F
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