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Taiwan Semiconductor Corporation SR40100PT
- Part No.:
- SR40100PT
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-247-3
- Datasheet:
-
SR40100PT.pdf
- Description:
- DIODE ARR SCHOT 100V 40A TO247AD
- Quantity:
- Payment:
- Shipping:
Inventory:3,680
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Product details
Overview
SR40100PT from Taiwan Semiconductor is a 100 V, 40 A Schottky barrier rectifier in TO-247AD (TO-3P) package, featuring 0.90 V forward voltage at 20 A and 25 °C, 500 µA reverse leakage at rated VR and 25 °C, and 400 A surge capability - deployed in high-efficiency DC/DC converters and industrial SMPS.
For engineers reviewing the SR40100PT datasheet, SR40100PT pinout, SR40100PT application, or SR40100PT equivalent, key selection criteria include peak reverse voltage rating, thermal resistance (1.2 °C/W), junction temperature range (–55 to +150 °C), and AEC-Q101 qualification status where applicable.
Technical Context
This device is a single-die, unidirectional Schottky rectifier optimized for low VF and fast switching in high-current, medium-voltage power conversion stages. Its 100 V VRRM, 40 A continuous forward current, and 1.2 °C/W RθJC support thermally constrained designs requiring minimal heatsink mass.
The SR40100PT operates with a maximum junction temperature of +150 °C and exhibits 10 mA reverse leakage at 100 °C - critical for reliability in ambient-temperature-variable environments such as industrial power supplies and LED drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - maximum repetitive reverse blocking voltage; defines safe operating limit in bridge or freewheeling configurations |
| IF | 40 A - continuous average forward current at case temperature ≤ 125 °C; determines steady-state conduction capacity |
| IFSM | 400 A - non-repetitive surge current (8.3 ms half-sine); supports inrush and fault transient handling |
| VF | 0.90 V @ 20 A, 25 °C - low conduction loss enabling >92% efficiency in 12–48 V output DC/DC stages |
| RθJC | 1.2 °C/W - junction-to-case thermal resistance; enables direct heatsink mounting without thermal interface material in many applications |
| TJ max | +150 °C - maximum allowable junction temperature; extends operational margin in sealed or high-ambient enclosures |
| IR | 500 µA @ 100 V, 25 °C - low reverse leakage preserves standby power budget in energy-sensitive systems |
Pinout & Package
Package: TO-247AD (TO-3P), 3-terminal through-hole package with isolated metal tab (cathode-connected tab), matte tin-plated leads, UL 94V-0 molding compound, and 6.10 g typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input current entry point | Connected to source-side of switching node; must withstand full load current and dI/dt transients |
| Cathode (Lead 2) | Output current exit point | Electrically tied to metal tab; serves as primary thermal and electrical return path to heatsink |
| Metal Tab (Cathode) | Thermal & electrical cathode terminal | Provides low-inductance, low-resistance cathode connection and primary heat dissipation path to heatsink |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Enhances edge termination robustness against localized overvoltage stress and improves long-term reliability under repetitive transients |
| AEC-Q101 qualified version available (SR40100PTH) | Validated for automotive under-hood applications including engine control modules and ADAS power rails |
| UL Recognized File # E-326243 | Confirms compliance with safety standards for end-equipment certification in commercial and industrial power supplies |
| Halogen-free per IEC 61249-2-21 | Meets RoHS and environmental compliance requirements for global electronics manufacturing and disposal |
Applications
| Server Power Supply | Industrial DC/DC Converter |
|---|---|
Use Scenario: High-density 48 V input, 12 V output server PSU with synchronous rectification topology. IC Role / Device Role / Timing Role: Freewheeling Schottky rectifier in secondary-side synchronous buck stage. Use Value: 0.90 V VF reduces conduction loss by ~18% vs. comparable 100 V Si diodes, directly improving full-load efficiency. | Use Scenario: 24 V to 5 V isolated DC/DC module for PLC I/O card power rail. IC Role / Device Role / Timing Role: Output rectifier in flyback secondary winding. Use Value: 400 A IFSM withstands repeated start-up surges without degradation, supporting robust field deployment. |
| LED Driver Power Stage | Telecom Rectification Module |
Use Scenario: Constant-current LED driver with 36 V bus and PWM dimming. IC Role / Device Role / Timing Role: Output rectifier in boost-derived constant-current topology. Use Value: 150 °C TJ max allows operation in enclosed luminaires with ambient up to 85 °C without derating. | Use Scenario: -48 V telecom rectifier board supplying distributed power to line cards. IC Role / Device Role / Timing Role: Primary output rectifier in dual-active-bridge isolated converter. Use Value: 1.2 °C/W RθJC enables direct mounting to aluminum chassis, eliminating dedicated heatsinks and reducing BOM cost. |
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-40CPH10 | Same 100 V VRRM, 40 A IF, but TO-247AC package; RθJC = 1.5 °C/W; VF = 0.87 V @ 20 A | Higher thermal resistance requires larger heatsink area; slightly lower VF offers marginal conduction gain | Prefer when existing layout uses TO-247AC footprint and thermal margin permits |
| ON Semiconductor MBR40100CT | Dual common-cathode configuration in TO-220AB; 100 V, 40 A per diode; VF = 0.92 V @ 20 A; RθJC = 2.0 °C/W | Not single-diode; requires separate cathode routing; higher thermal resistance limits power density | Select only if dual-output topology or TO-220AB mechanical constraints dictate |
Compared with VS-40CPH10 and MBR40100CT, the SR40100PT delivers superior thermal performance (1.2 °C/W) and simplified single-diode layout, making it optimal for space-constrained, high-efficiency 100 V rectification where heatsink mass and PCB real estate are critical.
Availability
SR40100PT is available at Aetrix Electronics and suitable for server power supplies, industrial DC/DC converters, LED driver power stages, and telecom rectification modules requiring stable component supply and long-lifecycle support.
Supply support for SR40100PT 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, serving global industrial, computing, and consumer markets since 1979.
The SR40xxPT series targets high-current, medium-voltage power conversion with emphasis on low VF, rugged surge capability, and automotive-grade reliability - designed specifically for next-generation SMPS, adapters, and DC/DC modules demanding efficiency and thermal resilience.
FAQ
What is the maximum junction temperature rating for SR40100PT?
The SR40100PT has a maximum junction temperature (TJ) rating of +150 °C, verified per absolute maximum ratings table. This allows reliable operation in high-ambient environments such as enclosed industrial power supplies or telecom equipment. The SR40100PT maintains specified electrical parameters up to this limit when thermal design ensures case temperature remains within derated boundaries.
Is SR40100PT pin-compatible with other parts in the SR40xxPT family?
Yes - all SR40xxPT devices share identical TO-247AD (TO-3P) package, pinout, and thermal/mechanical footprint. The SR40100PT uses the same anode–cathode–tab terminal arrangement as SR4020PT through SR4090PT, enabling drop-in voltage-scaling upgrades without PCB revision.
Does SR40100PT meet automotive qualification standards?
The base SR40100PT is not AEC-Q101 qualified; however, the SR40100PTH variant - identical electrically and mechanically but with additional automotive stress testing - is AEC-Q101 qualified. Engineers requiring automotive use must specify SR40100PTH, not SR40100PT, to ensure compliance.
What is the forward voltage specification for SR40100PT at elevated temperature?
The SR40100PT forward voltage increases with junction temperature: typical VF is 0.90 V at 25 °C and rises to approximately 0.75 V at 125 °C (per curve extrapolation from Fig.4). This negative temperature coefficient supports current sharing in parallel configurations and improves thermal stability during overload conditions.
How does the guard ring feature improve reliability of SR40100PT?
The guard ring in SR40100PT enhances edge termination robustness by distributing electric field gradients away from the active junction periphery. This mitigates premature avalanche breakdown during voltage transients and extends lifetime under repetitive surge conditions - particularly valuable in SMPS with poor input filtering or inductive load switching.
SR40100PT 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):
- 100 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 @ 100 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-247AD (TO-3P)
SR40100PT FAQ
1.How can I place an order for SR40100PT through Aetrix?
Please submit a Request for Quotation (RFQ) for SR40100PT 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 SR40100PT reliable?
The price and inventory of SR40100PT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR40100PT is usually 5 days.
3.What payment methods are accepted for SR40100PT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR40100PT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR40100PT?
SR40100PT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR40100PT 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 SR40100PT?
For technical support, including SR40100PT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR40100PT requirements.
6.How does Aetrix verify that SR40100PT is sourced from the original manufacturer or authorized distributors?
All SR40100PT 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 SR40100PT meets industry standards.
7.What is the process for return or replacement of SR40100PT?
All SR40100PT units undergo pre-shipment inspection (PSI). If there is an issue with SR40100PT, 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 SR40100PT part is unused and in its original packaging.
Return procedure for SR40100PT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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