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Taiwan Semiconductor Corporation SR4090PTH
- Part No.:
- SR4090PTH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-247-3
- Datasheet:
-
SR4090PTH.pdf
- Description:
- DIODE ARR SCHOTT 90V 40A TO247AD
- Quantity:
- Payment:
- Shipping:
Inventory:9,408
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Product details
Overview
SR4090PTH from Taiwan Semiconductor is a 40A, 90V AEC-Q101-qualified Schottky barrier rectifier in TO-247AD (TO-3P) package with dual-die configuration, 0.90V forward voltage at 20A/25°C, 500µA reverse leakage at 25°C, and 400A surge capability-used in automotive-grade DC-DC converters and high-efficiency SMPS.
For engineers reviewing the SR4090PTH datasheet, SR4090PTH pinout, SR4090PTH application, or SR4090PTH equivalent, key selection factors include its 90V VRRM rating, AEC-Q101 qualification, thermal resistance of 1.2°C/W, and compatibility with high-surge, low-loss power conversion topologies requiring robust junction temperature handling up to +150°C.
Technical Context
This device implements a dual-die Schottky architecture optimized for low conduction loss and fast recovery in unidirectional power rectification. Its guard ring structure provides overvoltage protection, and the matte tin-plated leads meet J-STD-002 solderability standards with JESD 201 Class 2 whisker resistance.
The SR4090PTH operates across -55°C to +150°C junction temperature range and delivers stable performance under repetitive 8.3ms half-sine surge currents up to 400A, supported by a 1.2°C/W junction-to-case thermal resistance enabling efficient heatsink coupling in high-power density designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 90 V - Maximum repetitive reverse blocking voltage; defines safe operating margin in 48V–72V bus applications |
| IF | 40 A - Continuous forward current rating; supports sustained output in 500W+ power supplies |
| VF @ 20A, 25°C | 0.90 V - Low conduction loss per diode; reduces power dissipation and thermal load in high-current paths |
| IR @ 90V, 25°C | 500 µA - Reverse leakage level; ensures minimal standby power loss in always-on systems |
| IFSM (8.3ms) | 400 A - Non-repetitive surge current capacity; withstands inrush and fault transients without failure |
| RθJC | 1.2 °C/W - Thermal resistance from junction to case; enables effective thermal management with standard TO-247 heatsinking |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments |
Pinout & Package
Package: TO-247AD (TO-3P), 3-terminal through-hole package with isolated mounting hole, UL 94V-0 molding compound, and matte tin-plated leads rated for 1.13 N·m maximum mounting torque.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Input terminal for first Schottky die | Connects to high-side switching node; carries full forward current in parallel-die configuration |
| Cathode | Common output terminal | Shared cathode connection for both dies; simplifies PCB layout and reduces parasitic inductance |
| Anode 2 | Input terminal for second Schottky die | Enables dual-die current sharing; improves thermal distribution and reliability under 40A DC load |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive power electronics including engine control units and ADAS power rails |
| Guard ring overvoltage protection | Enhances ruggedness against transient voltage spikes in noisy 12V/24V/48V vehicle electrical systems |
| Dual-die configuration | Improves current sharing and thermal derating behavior versus single-die 40A Schottky alternatives |
| UL Recognized (E-326243) | Meets safety requirements for end-equipment certification in industrial and medical-adjacent power supplies |
| Halogen-free construction | Complies with IEC 61249-2-21 for environmentally constrained manufacturing and RoHS-compliant assembly |
Applications
| Automotive DC-DC Converters | Industrial SMPS |
|---|---|
Use Scenario: High-efficiency 12V-to-48V bidirectional converter in 48V mild-hybrid vehicles. IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 40A load with transient surge tolerance. Use Value: AEC-Q101 qualification and +150°C TJ rating ensure reliability in under-hood thermal environments. | Use Scenario: Output stage of 600W open-frame AC-DC power supply for factory automation controllers. IC Role / Device Role / Timing Role: Low-VF Schottky rectifier minimizing conduction loss and improving overall efficiency above 92%. Use Value: Dual-die layout and 1.2°C/W RθJC enable compact heatsink design without forced air cooling. |
| Telecom Power Rectification | LED Driver Power Stage |
Use Scenario: Secondary-side rectification in -48V telecom rectifier modules with high line-transient immunity. IC Role / Device Role / Timing Role: 90V-rated Schottky diode absorbing reverse polarity surges and ringing during hot-swap events. Use Value: Guard ring structure and 400A IFSM provide robustness against telecom-grade lightning-induced transients. | Use Scenario: Constant-current LED driver for outdoor street lighting with wide input voltage range. IC Role / Device Role / Timing Role: High-current freewheeling path during PWM dimming cycles with low forward drop. Use Value: 0.90V VF at 20A reduces heat generation in sealed, thermally constrained luminaires. |
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-40CPH09-M3 | Same TO-247AD package, 40A/90V, but non-AEC-Q101; VF = 0.89V @ 20A, RθJC = 1.3°C/W | Lacks automotive qualification; suitable for industrial/commercial only | Select when AEC-Q101 is not required and cost sensitivity outweighs qualification needs |
| ON Semiconductor MUR4090CT | TO-247AC package, 40A/90V ultrafast recovery diode (not Schottky); VF = 2.1V @ 40A, higher switching loss | Higher conduction loss and slower recovery; used where reverse recovery noise must be minimized | Select only if Schottky reverse leakage is unacceptable and higher VF can be tolerated |
Compared with VS-40CPH09-M3 and MUR4090CT, the SR4090PTH uniquely combines AEC-Q101 compliance, Schottky-level VF, and dual-die thermal balance-making it the only option qualified for automotive 48V power conversion where reliability, efficiency, and surge resilience are jointly critical.
Availability
SR4090PTH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS, and telecom rectification requiring stable component supply with long-term lifecycle assurance.
Supply support for SR4090PTH 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power devices, rectifiers, and protection components.
The SR4090PTH belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-reliability automotive and industrial power conversion where low VF, high surge tolerance, and thermal robustness are essential.
FAQ
What is the maximum junction temperature rating for SR4090PTH?
The SR4090PTH has a maximum junction temperature (TJ max) of +150°C, validated per its AEC-Q101 qualification. This allows reliable operation in under-hood automotive environments and high-ambient industrial settings. The device maintains specified electrical parameters up to this limit, and its 1.2°C/W RθJC enables effective thermal transfer to heatsinks when mounted with ≤1.13 N·m torque.
Is SR4090PTH pin-compatible with other parts in the SR40xPT family?
Yes, all SR40xPT and SR40xPTH variants-including SR4090PTH-share identical TO-247AD (TO-3P) mechanical footprint and 3-pin anode-cathode-anode terminal arrangement. Voltage ratings differ (20V–100V), but PCB layout, mounting hardware, and thermal interface design remain interchangeable across the family.
What does the 'H' suffix in SR4090PTH indicate?
The 'H' suffix in SR4090PTH denotes AEC-Q101 qualification, confirming that the device has passed stress testing for automotive-grade reliability-including temperature cycling, humidity bias HAST, and ESD per AEC standards. This distinguishes SR4090PTH from non-H variants like SR4090PT, which lack formal automotive qualification.
What is the typical forward voltage of SR4090PTH at rated current?
The SR4090PTH exhibits a typical forward voltage (VF) of 0.90 V at 20 A and 25°C, measured per diode in its dual-die configuration. At full 40 A DC, VF rises predictably due to resistive heating; design margins should account for VF increase with junction temperature, especially above 100°C.
Does SR4090PTH require a heatsink in 40A continuous operation?
Yes, SR4090PTH requires a heatsink for 40A continuous operation. With 0.90 V VF at 20A and rising at higher current, power dissipation exceeds 36 W at full load. Given its 1.2°C/W RθJC, even modest ambient temperatures necessitate a heatsink to maintain TJ ≤150°C-especially in enclosed or convection-limited environments.
SR4090PTH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-247-3
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 90 V
- Current - Average Rectified (Io) (per Diode):
- 40A
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 90 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-247AD (TO-3P)
SR4090PTH FAQ
1.How can I place an order for SR4090PTH through Aetrix?
Please submit a Request for Quotation (RFQ) for SR4090PTH 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 SR4090PTH reliable?
The price and inventory of SR4090PTH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR4090PTH is usually 5 days.
3.What payment methods are accepted for SR4090PTH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR4090PTH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR4090PTH?
SR4090PTH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR4090PTH 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 SR4090PTH?
For technical support, including SR4090PTH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR4090PTH requirements.
6.How does Aetrix verify that SR4090PTH is sourced from the original manufacturer or authorized distributors?
All SR4090PTH 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 SR4090PTH meets industry standards.
7.What is the process for return or replacement of SR4090PTH?
All SR4090PTH units undergo pre-shipment inspection (PSI). If there is an issue with SR4090PTH, 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 SR4090PTH part is unused and in its original packaging.
Return procedure for SR4090PTH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SR4090PTH Tags
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