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STMicroelectronics STPS10L25G-TR
- Part No.:
- STPS10L25G-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
STPS10L25G-TR.pdf
- Description:
- DIODE SCHOTTKY 25V 10A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:3,517
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Product details
Overview
STPS10L25G-TR from STMicroelectronics is a single low-drop Schottky rectifier optimized for high-efficiency secondary-side rectification in 3.3 V switched-mode power supplies (SMPS) and high-frequency DC–DC converters. It delivers 10 A average forward current, 25 V repetitive peak reverse voltage, 0.30 V typical forward voltage at 125 °C/10 A, 150 °C maximum junction temperature, and 1.5 °C/W junction-to-case thermal resistance.
For engineers reviewing the STPS10L25G-TR datasheet, STPS10L25G-TR pinout, STPS10L25G-TR application, or STPS10L25G-TR equivalent, key selection criteria include conduction loss modeling (P = 0.22 × IF(AV) + 0.013 × IF²(RMS)), avalanche energy capability (395 W at 10 µs), thermal derating under D²PAK mounting conditions, and ECOPACK®2 compliance for lead-free assembly.
Technical Context
This Schottky diode operates without minority-carrier storage, enabling zero reverse recovery time and minimal switching losses in high-frequency topologies. Its low VF (0.30–0.48 V across 25–125 °C at 10–20 A) directly reduces conduction loss in compact 3.3 V output stages where thermal margin is constrained.
The device features specified unclamped inductive switching (UIS) capability with 395 W peak avalanche power at Tj = 125 °C and tp = 10 µs, supporting robust operation during transient overloads in synchronous or quasi-resonant converter designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 10 A - supports continuous output current in 3.3 V SMPS secondaries without forced air cooling |
| VRRM | 25 V - rated for 3.3 V rail rectification with ≥7× safety margin against transient spikes |
| VF (typ.) | 0.30 V at 10 A / 125 °C - enables <0.3 W conduction loss per diode in thermally constrained layouts |
| Rth(j-c) | 1.5 °C/W - allows direct heatsink mounting to sustain full 10 A load at ≤150 °C junction temperature |
| IFSM | 200 A (10 ms sinusoidal) - withstands startup surges and short-circuit events in regulated DC–DC outputs |
| PARM | 395 W (10 µs, Tj = 125 °C) - provides defined energy handling during inductive turn-off transients |
Pinout & Package
D²PAK (TO-263) surface-mount package with isolated tab (cathode-connected metal pad). Thermal performance relies on soldered copper area under tab per Figure 10 in datasheet (DocID3619 Rev 5, p.8).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (lead 2) | Input current terminal | Connected to transformer secondary or switch node; carries full forward current |
| Cathode (tab) | Output current terminal & thermal path | Electrically and thermally connected to PCB copper pour; must be routed as low-impedance return path |
| Lead 1 (NC) | No connection | Mechanical support only; electrically isolated from die and tab |
Key Features
| Feature | Design Value |
|---|---|
| Very low VF | 0.30 V typ. at 10 A / 125 °C - cuts conduction loss by >40% vs. standard Schottkys in same package |
| Optimized loss trade-off | Conduction/reverse leakage balance validated via P = 0.22 × IF(AV) + 0.013 × IF²(RMS) model - enables highest efficiency at 300–500 kHz |
| Avalanche rating | 395 W peak power (10 µs, Tj = 125 °C) - eliminates need for external snubbers in flyback or LLC secondary clamp paths |
| ECOPACK®2 compliance | Lead-free, halogen-free, RoHS-compliant epoxy - qualified for industrial and telecom assembly lines requiring strict environmental controls |
Applications
| Server VRM Secondary Rectification | Industrial DC–DC Converter Output Stage |
|---|---|
Use Scenario: 3.3 V, 10 A output stage in server voltage regulator module (VRM) with 400 kHz switching frequency. IC Role / Device Role / Timing Role: Primary secondary-side rectifier replacing MOSFET synchronous solution where gate drive complexity is prohibitive. Use Value: Eliminates body diode conduction loss and gate drive power while maintaining <0.35 V forward drop at full load and 125 °C ambient. | Use Scenario: 24 V input to 3.3 V isolated DC–DC converter in programmable logic controller (PLC) power supply. IC Role / Device Role / Timing Role: Output rectifier in flyback topology operating at 250 kHz with 100% duty cycle capability during hold-up. Use Value: Sustains 10 A average current with Rth(j-c) = 1.5 °C/W and no thermal runaway risk due to (dPtot/dTj) < (1/Rth(j-a)) design validation. |
| Telecom AC–DC Adapter Output | Automotive Infotainment Power Supply |
Use Scenario: Compact 3.3 V/8 A adapter for Ethernet-powered devices (PoE) with space-constrained PCB layout. IC Role / Device Role / Timing Role: Final-stage rectifier in high-density AC–DC front-end with 500 kHz resonant control. Use Value: Enables 92% system efficiency at full load using only 8 cm² copper under D²PAK tab, per Figure 8 (Rth(j-a) = 25 °C/W at SCu = 8 cm²). | Use Scenario: 3.3 V auxiliary rail in automotive infotainment head unit with -40 to +105 °C ambient requirement. IC Role / Device Role / Timing Role: Secondary rectifier in isolated buck-boost converter powering SoC I/O domain. Use Value: Maintains 0.41–0.48 V VF across -40 to +125 °C junction range, ensuring stable regulation without dynamic compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MBR1020CT | 20 V VRRM, TO-220AB dual common-cathode configuration, VF = 0.55 V @ 10 A/25 °C | Requires dual-diode layout; lower voltage rating limits use in 24 V-input systems with high transient margin needs | Select when dual-output 3.3/5 V rails exist and board space permits through-hole mounting |
| Vishay VS-10BQ020-M3/45 | 20 V VRRM, D²PAK, VF = 0.32 V @ 10 A/125 °C, Rth(j-c) = 2.0 °C/W | Higher thermal resistance reduces max continuous current to 8.5 A at same heatsink interface | Choose when legacy footprint compatibility with Vishay's 10BQ series is required and 1.5 A derating is acceptable |
Compared with MBR1020CT and VS-10BQ020-M3/45, STPS10L25G-TR offers superior voltage margin (25 V vs. 20 V), lowest VF at elevated temperature, and best thermal resistance-making it optimal for high-density, high-reliability 3.3 V SMPS where thermal headroom and transient immunity are critical.
Availability
STPS10L25G-TR is available at Aetrix Electronics and suitable for server VRMs, industrial DC–DC converters, telecom AC–DC adapters, and automotive infotainment power supplies requiring stable component supply and long-term production continuity.
Supply support for STPS10L25G-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 industrial, automotive, and consumer markets.
The STPS low-drop Schottky rectifier product line targets high-efficiency secondary-side rectification in compact, high-frequency power supplies-specifically engineered to replace MOSFET synchronous rectifiers where simplicity, reliability, and thermal predictability outweigh marginal efficiency gains.
FAQ
What is the maximum recommended PCB copper area under the D²PAK tab for optimal thermal performance?
Per Figure 8 in the datasheet (DocID3619 Rev 5, p.4), a minimum of 8 cm² copper area achieves Rth(j-a) ≈ 25 °C/W at 25 °C ambient. For full 10 A operation at 105 °C ambient, ≥12 cm² is recommended to maintain Tj ≤ 150 °C with natural convection only.
Does STPS10L25G-TR support parallel operation for higher current applications?
Yes, but requires matched VF characteristics and symmetrical PCB layout. The datasheet specifies VF matching within ±5 mV at 10 A/125 °C across production lots. Parallel use mandates individual thermal vias and identical trace lengths to avoid current imbalance exceeding 15%.
Is the STPS10L25G-TR compliant with AEC-Q101 for automotive use?
No. STPS10L25G-TR is not AEC-Q101 qualified. It meets industrial-grade reliability (Tj max = 150 °C, storage range −65 to +150 °C) and is used in automotive infotainment power supplies where qualification is handled at the system level-not component level.
How is avalanche capability tested and what does PARM = 395 W represent?
PARM is measured per JEDEC JESD24-11 using unclamped inductive switching (UIS) test circuit: 10 µs pulse, Tj = 125 °C, with peak current calibrated to deliver 395 W instantaneous power. This validates single-pulse survivability during worst-case transformer reset or short-circuit events without degradation.
STPS10L25G-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 25 V
- Current - Average Rectified (Io):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 460 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 800 µA @ 25 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
- Operating Temperature - Junction:
- 150°C (Max)
STPS10L25G-TR FAQ
1.How can I place an order for STPS10L25G-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS10L25G-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 STPS10L25G-TR reliable?
The price and inventory of STPS10L25G-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS10L25G-TR is usually 5 days.
3.What payment methods are accepted for STPS10L25G-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS10L25G-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS10L25G-TR?
STPS10L25G-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS10L25G-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 STPS10L25G-TR?
For technical support, including STPS10L25G-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS10L25G-TR requirements.
6.How does Aetrix verify that STPS10L25G-TR is sourced from the original manufacturer or authorized distributors?
All STPS10L25G-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 STPS10L25G-TR meets industry standards.
7.What is the process for return or replacement of STPS10L25G-TR?
All STPS10L25G-TR units undergo pre-shipment inspection (PSI). If there is an issue with STPS10L25G-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 STPS10L25G-TR part is unused and in its original packaging.
Return procedure for STPS10L25G-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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