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STMicroelectronics STPST10H100SB-TR
- Part No.:
- STPST10H100SB-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
STPST10H100SB-TR.pdf
- Description:
- 100 V, 10 A, DPAK POWER SCHOTTKY
- Quantity:
- Payment:
- Shipping:
Inventory:2,370
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Product details
Overview
STPST10H100SB-TR from STMicroelectronics is a 10 A, 100 V Schottky trench rectifier in DPAK package, engineered for high-frequency SMPS and auxiliary power supplies. It delivers typ. 0.57 V forward voltage at 10 A/125 °C, 175 °C max junction temperature, and low reverse recovery charge to minimize conduction and switching losses in telecom and smart metering power stages.
For engineers reviewing the STPST10H100SB-TR datasheet, STPST10H100SB-TR pinout, STPST10H100SB-TR application, or STPST10H100SB-TR equivalent, key selection criteria include VF/IR trade-off at elevated Tj, avalanche ruggedness (14 A IAS), thermal resistance (0.7 °C/W j-c), and ECOPACK2 compliance for industrial-grade reliability.
Technical Context
This device employs ST's proprietary trench Schottky technology to achieve superior forward voltage versus reverse leakage balance-typ. 0.57 V at 10 A/125 °C and only 2.0–6.4 mA IR at 70 V/125 °C. Its low Qrr and soft recovery behavior reduce EMI and diode-induced losses in flyback and DC/DC converters.
Designed for surface-mount operation with DPAK thermal pad, it supports continuous IF(AV) = 10 A at Tc = 165 °C and withstands unclamped inductive switching up to 14 A (IAS) with 300 µH inductance-validated per Figure 1–2 in DS14177 Rev 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking voltage; enables use in 48 V input SMPS and telecom auxiliary rails. |
| IF(AV) | 10 A at Tc = 165 °C - Sustained average forward current rating under heatsink-cooled conditions. |
| VF (typ.) | 0.57 V at 10 A / 125 °C - Low conduction loss directly reduces power dissipation in high-duty-cycle applications. |
| Rth(j-c) | 0.7 °C/W - Enables efficient heat transfer to PCB copper or external heatsink; critical for compact power designs. |
| IAS | 14 A - Single-pulse avalanche current rating confirms robustness against inductive turn-off transients. |
| Tj (max) | +175 °C - Extended junction temperature range supports operation in thermally constrained enclosures. |
| ECOPACK2 | Compliant - Meets RoHS, halogen-free, and material declaration requirements for industrial and telecom markets. |
Pinout & Package
Supplied in DPAK (TO-252) package with exposed thermal pad on the bottom side. Anode and cathode terminals are accessible via three leads: two anode pins (internally shorted) and one cathode pin. The package meets UL94 V0 flammability rating and supports automated reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 & 2 (shorted) | Current entry point | Parallel anode configuration lowers effective series resistance and improves current sharing in high-current paths. |
| Cathode | Current exit point | Single large-area cathode terminal minimizes voltage drop and thermal hotspot formation during 10 A conduction. |
| Thermal pad (bottom) | Thermal interface | Exposed copper pad must be soldered to ≥25 cm² of 70 µm Cu on FR4 for Rth(j-a) ≤ 35 °C/W per Figure 8. |
Key Features
| Feature | Design Value |
|---|---|
| Trench Schottky architecture | Enables best-in-class VF/IR trade-off: 0.57 V @ 10 A/125 °C + 6.4 mA IR @ 70 V/125 °C. |
| Avalanche-rated | Withstands 14 A single-pulse inductive energy events without degradation-critical for flyback snubberless designs. |
| High-Tj capability | Rated for continuous operation up to +175 °C junction temperature, supporting compact, sealed, or high-ambient environments. |
| Low Qrr & soft recovery | Reduces reverse recovery losses and EMI generation in high-frequency (≥100 kHz) switching topologies. |
| DPAK thermal performance | 0.7 °C/W junction-to-case resistance allows direct thermal coupling to PCB copper, eliminating need for discrete heatsinks. |
Applications
| Telecom Auxiliary Power Supply | Smart Meter DC/DC Converter |
|---|---|
Use Scenario: Provides isolated 5 V/12 V bias supply for control ICs and communication interfaces in telecom base station power modules. IC Role / Device Role / Timing Role: Freewheeling rectifier in flyback converter secondary stage, operating at 200 kHz with 10 A peak current. Use Value: 0.57 V VF at 125 °C cuts conduction loss by ~22% vs. standard Schottky diodes, improving efficiency by 0.8% at full load. | Use Scenario: Powers microcontroller, RTC, and RF transceiver in battery-backed smart electricity meters with wide ambient range (−40 to +85 °C). IC Role / Device Role / Timing Role: Output rectifier in miniature 10 W offline flyback supplying 3.3 V/2 A with tight size constraints. Use Value: 175 °C Tj rating ensures reliable operation during internal self-heating in sealed meter housings without derating. |
| Server PSU Hold-up Circuit | LED Driver Flyback Stage |
Use Scenario: Used in OR-ing and hold-up capacitor charging path of redundant 12 V server power distribution units. IC Role / Device Role / Timing Role: Reverse polarity protection and freewheeling diode in active OR-ing controller auxiliary path. Use Value: Low IR (26 µA @ 100 V/25 °C) prevents standby leakage current from discharging hold-up capacitors over time. | Use Scenario: Secondary-side rectifier in constant-current LED driver for street lighting, handling 10 A pulsed output. IC Role / Device Role / Timing Role: High-current output rectifier in 60–100 kHz flyback topology driving 48 V LED strings. Use Value: Avalanche ruggedness (14 A IAS) absorbs transformer leakage inductance spikes during MOSFET turn-off, eliminating need for TVS clamping. |
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-10E10-M3/5B | 10 A/100 V, VF = 0.62 V @ 10 A/125 °C, Rth(j-c) = 1.0 °C/W, no avalanche rating. | Lacks IAS specification; requires additional snubber in flyback designs with high leakage inductance. | Preferred where cost sensitivity outweighs avalanche robustness and thermal performance. |
| ON Semiconductor MBR10100CT | 10 A/100 V dual common-cathode, VF = 0.75 V @ 10 A/25 °C, Tj(max) = 150 °C, D2PAK package. | Higher VF increases conduction loss; lower Tj limit restricts use in thermally dense server or telecom modules. | Suitable for lower-temperature, non-avalance-critical 12 V/24 V industrial supplies. |
Compared with VS-10E10-M3/5B and MBR10100CT, STPST10H100SB-TR offers superior thermal performance (0.7 vs. ≥1.0 °C/W), higher junction temperature margin (+175 °C), and verified avalanche capability-making it optimal for compact, high-reliability telecom and smart infrastructure power stages.
Availability
STPST10H100SB-TR is available at Aetrix Electronics and suitable for telecom auxiliary power supplies, smart meter DC/DC converters, and LED driver flyback stages requiring stable component supply, long-term lifecycle support, and ECOPACK2-compliant sourcing.
Supply support for STPST10H100SB-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, designing and manufacturing analog, power, MCU, and sensor solutions for industrial, automotive, and consumer markets.
This device belongs to ST's trench Schottky rectifier product line, developed specifically to replace conventional planar Schottkys in high-efficiency, high-frequency SMPS where VF/IR optimization and thermal resilience are critical.
FAQ
What is the maximum allowable case temperature for continuous 10 A operation?
The datasheet specifies IF(AV) = 10 A at Tc = 165 °C with δ = 0.5 square wave. Operation above this temperature requires derating per Figure 3; at Tc = 175 °C, IF(AV) drops to ~8.5 A. Thermal design must ensure case temperature remains ≤165 °C under worst-case ambient and airflow conditions.
Is STPST10H100SB-TR suitable for synchronous rectification?
No-it is a unidirectional Schottky rectifier, not a MOSFET-based synchronous rectifier controller or driver. It functions as a passive freewheeling or output rectifier. For synchronous rectification, ST recommends SRK1001 or SRK2001 controllers paired with appropriate N-channel MOSFETs.
Does the DPAK package require thermal vias under the pad?
Yes. To achieve the rated Rth(j-c) = 0.7 °C/W and prevent thermal runaway, the exposed thermal pad must be soldered to ≥25 cm² of 70 µm copper on the PCB, with ≥6 thermal vias (0.3 mm diameter, filled or plated) connecting to inner or back-layer copper planes per Figure 8 and AN5088 recommendations.
How does its avalanche rating compare to standard Schottky diodes?
Unlike most Schottky diodes-which fail catastrophically under unclamped inductive switching-STPST10H100SB-TR is tested to 14 A IAS with 300 µH inductance and 15 V VDD (per Figure 1–2). This validated ruggedness eliminates need for external clamping in flyback and LLC resonant converters where leakage inductance causes voltage overshoot.
STPST10H100SB-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- ECOPACK®2
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 715 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 26 µA @ 100 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252 (DPAK)
- Operating Temperature - Junction:
- 175°C
STPST10H100SB-TR FAQ
1.How can I place an order for STPST10H100SB-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STPST10H100SB-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 STPST10H100SB-TR reliable?
The price and inventory of STPST10H100SB-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPST10H100SB-TR is usually 5 days.
3.What payment methods are accepted for STPST10H100SB-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPST10H100SB-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPST10H100SB-TR?
STPST10H100SB-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPST10H100SB-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 STPST10H100SB-TR?
For technical support, including STPST10H100SB-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPST10H100SB-TR requirements.
6.How does Aetrix verify that STPST10H100SB-TR is sourced from the original manufacturer or authorized distributors?
All STPST10H100SB-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 STPST10H100SB-TR meets industry standards.
7.What is the process for return or replacement of STPST10H100SB-TR?
All STPST10H100SB-TR units undergo pre-shipment inspection (PSI). If there is an issue with STPST10H100SB-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 STPST10H100SB-TR part is unused and in its original packaging.
Return procedure for STPST10H100SB-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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