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STMicroelectronics STPST10H100SFY
- Part No.:
- STPST10H100SFY
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
STPST10H100SFY.pdf
- Description:
- AUTOMOTIVE 100 V, 10 A POWER SCH
- Quantity:
- Payment:
- Shipping:
Inventory:5,925
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Product details
Overview
STPST10H100SFY from STMicroelectronics is an AEC-Q101-qualified 10 A, 100 V automotive Schottky rectifier based on trench technology, featuring typ. 0.565 V forward voltage at 10 A/125 °C, 100% production avalanche testing, and operation up to +175 °C junction temperature. It targets high-frequency DC/DC converters, ECU power supplies, and LED lighting in space-constrained automotive modules.
For engineers reviewing the STPST10H100SFY datasheet, STPST10H100SFY pinout, STPST10H100SFY application, or STPST10H100SFY equivalent, key selection criteria include VF/IR trade-off at elevated Tj, flat PSMC (TO-277A) thermal performance, avalanche ruggedness, and ECOPACK2 compliance for automotive-grade reliability.
Technical Context
This device implements ST's proprietary trench Schottky architecture to minimize conduction losses while maintaining low reverse leakage-typ. 2 µA at 100 V/25 °C and 6.4 mA at 70 V/125 °C. Its 1.25 °C/W junction-to-case thermal resistance enables high-power-density mounting on PCB copper pads without external heatsinks.
The diode supports unclamped inductive switching with 14 A single-pulse avalanche current (L = 300 µH, VDD = 15 V), validated per AEC-Q101 stress conditions. Its flat PSMC (TO-277A) package integrates dual anode terminals shorted internally, optimized for surface-mount freewheeling and OR-ing in compact 12 V–48 V automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking voltage; ensures safe operation in 48 V automotive bus transients. |
| IF(AV) | 10 A at Tc = 155 °C - Average forward current rating defines continuous power handling under real thermal boundary conditions. |
| VF (typ.) | 0.565 V at IF = 10 A, Tj = 125 °C - Low forward drop directly reduces conduction loss: Pcond ≈ 0.42×IF(AV) + 0.020×IF²(RMS). |
| Rth(j-c) | 1.25 °C/W - Enables direct PCB copper pad cooling; supports >8 W dissipation before exceeding 175 °C Tj. |
| IAS | 14 A - Single-pulse avalanche current rating confirms robustness against inductive kickback in flyback and buck-derived topologies. |
| Tj (max.) | +175 °C - Extended junction temperature range allows placement near hot components (e.g., MCU, gate drivers) in engine bay modules. |
| IR (max.) | 6.4 mA at VR = 70 V, Tj = 125 °C - Controlled reverse leakage preserves efficiency in high-temperature freewheeling paths. |
Pinout & Package
STPST10H100SFY is housed in a flat, surface-mount PSMC (TO-277A) package with two anode terminals shorted internally and one cathode terminal. The package features a thermally enhanced metal tab for direct PCB copper pad conduction cooling and complies with ECOPACK2 environmental requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 / Anode 2 | Common anode connection | Internally shorted dual-anode structure improves current sharing and thermal distribution across the die. |
| Cathode | Output terminal | Single cathode pin carries full forward current; designed for low-inductance PCB routing in high-frequency SMPS. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, humidity bias, and mechanical shock per JESD47. |
| 100% production avalanche test | Every unit tested to 14 A IAS (300 µH, 15 V), ensuring field reliability in unclamped inductive switching events. |
| Trench Schottky architecture | Optimizes VF/IR trade-off: 0.565 V VF @ 10 A/125 °C with only 6.4 mA IR @ 70 V/125 °C. |
| Flat PSMC (TO-277A) package | 0.9–1.24 mm height enables ultra-thin power stages; metal tab provides 1.25 °C/W Rth(j-c) for passive thermal management. |
| ECOPACK2 compliance | Halogen-free, RoHS-compliant epoxy meets UL94 V0 flammability rating for automotive safety-critical assemblies. |
Applications
| Automotive LED Headlamp Driver | Flyback DC/DC Converter |
|---|---|
Use Scenario: High-efficiency, thermally constrained 12 V–48 V LED driver in adaptive front-lighting systems (AFS). IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectified flyback stage, operating at 200–500 kHz switching frequency. Use Value: 0.565 V VF at 125 °C reduces conduction loss by ~18% vs. legacy planar Schottkys, enabling smaller heatsinks and higher lumen density. | Use Scenario: Isolated 12 V output supply for ADAS domain controllers in zonal architectures. IC Role / Device Role / Timing Role: Secondary-side rectifier in 300 kHz flyback converter with tight layout constraints. Use Value: Flat PSMC package allows <1.2 mm profile; 1.25 °C/W Rth(j-c) sustains 10 A avg. current without forced air, simplifying mechanical design. |
| ECU Power Supply Input Stage | Reverse Polarity Protection |
Use Scenario: Input rectification and hold-up for 5 V/3.3 V LDO-fed microcontroller power rails in body control modules. IC Role / Device Role / Timing Role: OR-ing diode between dual input sources (battery + backup capacitor), conducting during cold-crank (6 V). Use Value: Low 0.46 V VF at 10 A/125 °C minimizes voltage drop during cranking, preserving brown-out margin for critical firmware execution. | Use Scenario: Reverse battery protection in telematics units exposed to service shop misconnections. IC Role / Device Role / Timing Role: Series-connected cathode-to-load Schottky preventing reverse current flow during -14 V transients. Use Value: 100% production avalanche tested to 14 A ensures survival of 100 ms –14 V reverse pulses without degradation. |
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-10EWH10-M3 | 10 A/100 V, VF = 0.65 V @ 10 A/125 °C; TO-277 package; no AEC-Q101 certification. | Not qualified for automotive under-hood use; suitable for industrial DC/DC where qualification is waived. | Select only if AEC-Q101 is not required and higher VF is acceptable for thermal budget. |
| ON Semiconductor NSR10F100HT1G | 10 A/100 V, VF = 0.62 V @ 10 A/125 °C; SOD-123FL package; Rth(j-c) = 3.5 °C/W; AEC-Q101 qualified. | Lower current density due to smaller package; limited to ≤4 A continuous in same PCB area. | Prefer for footprint-constrained designs where 10 A avg. load is intermittent, not continuous. |
Compared with VS-10EWH10-M3 and NSR10F100HT1G, STPST10H100SFY uniquely delivers AEC-Q101 qualification, lowest VF (0.565 V), and best thermal resistance (1.25 °C/W) in a production-validated flat package-making it optimal for continuous 10 A automotive power conversion.
Availability
STPST10H100SFY is available at Aetrix Electronics and suitable for automotive LED lighting, flyback topology DC/DC converters, and ECU power supply designs requiring stable component supply across extended temperature and lifetime requirements.
Supply support for STPST10H100SFY 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 microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.
STPST10H100SFY belongs to ST's automotive-qualified trench Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in engine bay and chassis-mounted electronic control units.
FAQ
What is the maximum allowable case temperature for continuous 10 A operation?
The datasheet specifies IF(AV) = 10 A at Tc = 155 °C with δ = 0.5 square wave. This means the device can sustain 10 A average forward current when the case temperature is held at or below 155 °C-achievable via ≥6 cm² of 70 µm copper on FR4, per Figure 8. Exceeding this Tc risks thermal runaway due to the (dPtot/dTj) < (1/Rth(j-a)) condition.
Is STPST10H100SFY pin-compatible with STPST10H100-Y?
Yes-STPST10H100SFY and STPST10H100-Y share identical PSMC (TO-277A) package dimensions, pinout, and internal construction. The 'SFY' suffix denotes tape-and-reel packaging (6,000 pcs/reel) and specific marking 'T10H1Y', while '-Y' is the base part number used in documentation and electrical specs.
Does this diode require a snubber circuit in flyback applications?
No snubber is required for typical flyback operation due to its low reverse recovery charge (Qrr) inherent to trench Schottky technology. The device exhibits soft, non-oscillatory turn-off behavior. However, a small RC snubber may still be used to damp parasitic ringing from layout inductance-not diode recovery-especially above 400 kHz switching frequencies.
How is avalanche ruggedness verified in production?
Each STPST10H100SFY unit undergoes 100% production avalanche testing using the unclamped inductive switching (UIS) method defined in Figure 1 and Figure 2: L = 300 µH, VDD = 15 V, resulting in 14 A peak current. Energy stress (EAS = ½ × L × IAS²) is monitored to ensure no parametric shift or visual defect post-test, per AEC-Q101 stress acceptance criteria.
STPST10H100SFY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- ECOPACK®2
- Package/Case:
- TO-277, 3-PowerDFN
- 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:
- 700 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-277A (SMPC)
- Operating Temperature - Junction:
- -40°C ~ 175°C
STPST10H100SFY FAQ
1.How can I place an order for STPST10H100SFY through Aetrix?
Please submit a Request for Quotation (RFQ) for STPST10H100SFY 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 STPST10H100SFY reliable?
The price and inventory of STPST10H100SFY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPST10H100SFY is usually 5 days.
3.What payment methods are accepted for STPST10H100SFY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPST10H100SFY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPST10H100SFY?
STPST10H100SFY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPST10H100SFY 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 STPST10H100SFY?
For technical support, including STPST10H100SFY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPST10H100SFY requirements.
6.How does Aetrix verify that STPST10H100SFY is sourced from the original manufacturer or authorized distributors?
All STPST10H100SFY 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 STPST10H100SFY meets industry standards.
7.What is the process for return or replacement of STPST10H100SFY?
All STPST10H100SFY units undergo pre-shipment inspection (PSI). If there is an issue with STPST10H100SFY, 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 STPST10H100SFY part is unused and in its original packaging.
Return procedure for STPST10H100SFY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPST10H100SFY Tags
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