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STMicroelectronics STPST5H100SBY-TR
- Part No.:
- STPST5H100SBY-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
STPST5H100SBY-TR.pdf
- Description:
- AUTOMOTIVE 100 V, 5 A, DPAK POWE
- Quantity:
- Payment:
- Shipping:
Inventory:17,460
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Product details
Overview
STPST5H100SBY-TR from STMicroelectronics is an AEC-Q101-qualified 5 A, 100 V automotive-grade Schottky trench rectifier in DPAK package, featuring typ. 0.55 V forward voltage at 5 A/125 °C, 1.3 °C/W junction-to-case thermal resistance, and 100% production avalanche testing. It targets high-frequency DC/DC converters, ECU power supplies, and LED lighting in under-hood automotive systems.
For engineers reviewing the STPST5H100SBY-TR datasheet, STPST5H100SBY-TR pinout, STPST5H100SBY-TR application, or STPST5H100SBY-TR equivalent, key selection criteria include VF/IR trade-off at 125 °C, avalanche ruggedness (9 A single-pulse), Tj max of +175 °C, and DPAK thermal performance for conduction-loss-sensitive flyback and freewheeling topologies.
Technical Context
This device uses ST's proprietary trench Schottky technology to minimize forward voltage while maintaining low reverse leakage-typ. 1.0 mA at 70 V/125 °C and 6.5 mA at 100 V/125 °C. Its low Qrr and fast recovery enable reduced switching losses in high-frequency SMPS.
The DPAK package provides 1.3 °C/W Rth(j-c) and supports 45 A RMS forward current with case temperature derating per Figure 3. Integrated avalanche capability (EAS = ½ × L × IAS², L = 300 µH) ensures robustness against unclamped inductive transients in automotive power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking voltage; enables use in 48 V automotive bus-derived supplies with margin. |
| IF(AV) | 5 A at Tc = 165 °C - Average forward current rating defines continuous conduction capability in thermally managed layouts. |
| VF (typ.) | 0.55 V at IF = 5 A, Tj = 125 °C - Low conduction loss directly reduces power dissipation and heatsink requirements. |
| Rth(j-c) | 1.3 °C/W - Junction-to-case thermal resistance enables accurate thermal modeling for PCB copper area sizing. |
| IAS | 9 A - Single-pulse avalanche current rating confirms ruggedness against load dump or inductive kick events. |
| Tj (max) | +175 °C - Maximum operating junction temperature supports under-hood placement without active cooling. |
| IR (max) | 3.2 mA at VR = 70 V, Tj = 125 °C - Reverse leakage level impacts standby power in always-on ECU modules. |
Pinout & Package
Supplied in DPAK (TO-252) package with exposed drain tab for thermal and electrical connection. The device has three terminals: Anode (pin 1), Cathode (pin 2), and Tab (anode-connected thermal pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Input current terminal | Connects to input rail (e.g., battery or boost output); carries full forward current during conduction. |
| Cathode (Pin 2) | Output current terminal | Delivers rectified current to load; must be routed with low-inductance path for high-frequency operation. |
| Tab (exposed pad) | Anode-connected thermal & electrical node | Must be soldered to large copper pour for thermal dissipation; electrically tied to anode-no isolation required. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified & PPAP capable | Validated for automotive production release; eliminates qualification overhead for Tier 1 suppliers. |
| 100% avalanche tested in production | Each unit verified for 9 A single-pulse avalanche energy-ensures field reliability in transient-prone ECUs. |
| Low VF/IR trade-off via trench process | 0.55 V @ 5 A/125 °C with only 1.0 mA IR @ 70 V/125 °C-optimizes efficiency across wide temperature range. |
| ECOPACK2 compliant | Meets RoHS, halogen-free, and material declaration requirements for global automotive OEM compliance. |
| Extended Tj range (−40 to +175 °C) | Enables direct mounting on engine control units without external thermal shielding or derating penalties. |
Applications
| Automotive LED Headlamp Driver | Flyback DC/DC Converter |
|---|---|
Use Scenario: High-brightness LED arrays powered from 12 V battery with PWM dimming and thermal foldback. IC Role / Device Role / Timing Role: Output rectifier in secondary-side synchronous or quasi-resonant flyback stage. Use Value: 0.55 V VF minimizes conduction loss at 3–5 A average current, improving lumen/W efficiency and reducing heatsink mass. | Use Scenario: Isolated 12 V → 3.3 V/5 V supply for microcontroller and CAN transceiver in body control module. IC Role / Device Role / Timing Role: Secondary-side rectifier handling 50–500 kHz switching frequency with minimal reverse recovery. Use Value: Low Qrr and 175 °C Tj rating sustain stable regulation during hot-soak conditions without derating. |
| ECU Main Power Supply | Reverse Polarity Protection |
Use Scenario: Primary 12 V input conditioning before buck regulator in engine control unit with load dump immunity. IC Role / Device Role / Timing Role: Input rectifier and freewheeling diode in pre-regulator stage. Use Value: 9 A avalanche rating absorbs 12 V load dump spikes (ISO 7637-2 Pulse 5a) without failure. | Use Scenario: MOSFET-based OR-ing circuit replaced by low-VF Schottky for compact, low-cost reverse polarity guard. IC Role / Device Role / Timing Role: Series-blocking rectifier between battery and system input. Use Value: 0.55 V drop at 5 A limits power loss to < 2.8 W-enabling PCB-only thermal management without heatsink. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS5H100CG-TR | DPAK package, same 5 A/100 V rating, but non-automotive grade (no AEC-Q101, no PPAP, Tj max = +150 °C). | Lacks production avalanche test and extended temperature validation-unsuitable for safety-critical ECU nodes. | Select only for cost-sensitive non-automotive industrial DC/DC where Tj ≤ 150 °C and transient immunity is not mandated. |
| Vishay VS-5EWH10-M3/45 | 5 A/100 V, TO-252, AEC-Q101 qualified, but VF = 0.72 V (typ. @ 5 A/125 °C), Rth(j-c) = 2.0 °C/W. | Higher conduction loss and poorer thermal resistance reduce efficiency in space-constrained modules. | Acceptable where footprint compatibility is critical but thermal headroom exists; avoid in thermally dense ECU designs. |
Compared with STPS5H100CG-TR and VS-5EWH10-M3/45, STPST5H100SBY-TR uniquely combines AEC-Q101 validation, 175 °C operation, 0.55 V VF, and 1.3 °C/W Rth(j-c)-making it the only choice for high-efficiency, high-reliability automotive power conversion where thermal and transient margins are constrained.
Availability
STPST5H100SBY-TR is available at Aetrix Electronics and suitable for automotive LED lighting, on-board DC/DC converters, and ECU power supply designs requiring stable component supply across multi-year vehicle production cycles.
Supply support for STPST5H100SBY-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 automotive, industrial, and consumer markets.
This device belongs to ST's automotive-qualified power Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability DC/DC conversion in harsh-temperature automotive environments.
FAQ
What is the maximum allowable case temperature for continuous 5 A operation?
The datasheet specifies IF(AV) = 5 A at Tc = 165 °C (δ = 0.5 square wave). Operation at this current requires maintaining case temperature ≤ 165 °C via adequate PCB copper area and airflow. Derating begins above this point per Figure 3-e.g., 3.5 A at Tc = 175 °C.
Is the exposed tab electrically isolated from the anode?
No-the DPAK tab is internally connected to the anode. It must be soldered to a copper pour tied to the anode net. Using it as a cathode heat sink or isolating it electrically will cause short-circuit failure.
How does the 9 A avalanche rating translate to real-world surge protection?
The 9 A rating is measured under standardized unclamped inductive switching (UIS) test: L = 300 µH, VDD = 15 V, Tj = 25 °C. It corresponds to ~60 mJ single-pulse energy (EAS = ½ × L × IAS²), sufficient to absorb ISO 7637-2 Pulse 5a load dump transients in 12 V systems when properly mounted.
Can this diode replace a standard silicon rectifier in an existing 100 V design?
Yes-if the original design uses a 100 V silicon diode with IF(AV) ≤ 5 A and operates below 125 °C junction temperature. However, verify layout thermal relief: Schottky VF drops with temperature, so thermal runaway risk is negligible, but reverse leakage rises sharply above 125 °C and must be checked in high-ambient applications.
STPST5H100SBY-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):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 685 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 11.5 µA @ 100 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252 (DPAK)
- Operating Temperature - Junction:
- -40°C ~ 175°C
STPST5H100SBY-TR FAQ
1.How can I place an order for STPST5H100SBY-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STPST5H100SBY-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 STPST5H100SBY-TR reliable?
The price and inventory of STPST5H100SBY-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPST5H100SBY-TR is usually 5 days.
3.What payment methods are accepted for STPST5H100SBY-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPST5H100SBY-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPST5H100SBY-TR?
STPST5H100SBY-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPST5H100SBY-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 STPST5H100SBY-TR?
For technical support, including STPST5H100SBY-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPST5H100SBY-TR requirements.
6.How does Aetrix verify that STPST5H100SBY-TR is sourced from the original manufacturer or authorized distributors?
All STPST5H100SBY-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 STPST5H100SBY-TR meets industry standards.
7.What is the process for return or replacement of STPST5H100SBY-TR?
All STPST5H100SBY-TR units undergo pre-shipment inspection (PSI). If there is an issue with STPST5H100SBY-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 STPST5H100SBY-TR part is unused and in its original packaging.
Return procedure for STPST5H100SBY-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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