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Taiwan Semiconductor Corporation SR2050PT
- Part No.:
- SR2050PT
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-247-3
- Datasheet:
-
SR2050PT.pdf
- Description:
- DIODE ARR SCHOTT 50V 20A TO247AD
- Quantity:
- Payment:
- Shipping:
Inventory:4,714
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Product details
Overview
SR2050PT from Taiwan Semiconductor is a 20A, 50V repetitive peak reverse voltage Schottky barrier rectifier in TO-247AD (TO-3P) package, featuring 0.70V max forward voltage at 10A/25°C, 200A surge capability, and junction temperature rating up to +150°C. It serves as a high-efficiency output rectifier in DC–DC converters and offline SMPS.
For engineers reviewing the SR2050PT datasheet, SR2050PT pinout, SR2050PT application, or SR2050PT equivalent, key selection criteria include VRRM=50V, IF=20A, VF≤0.70V @10A, IFSM=200A, and thermal resistance RθJC=1.5°C/W - all critical for thermal management and efficiency validation in high-current power stages.
Technical Context
The SR2050PT uses dual-die construction in a single TO-247AD case, enabling parallel conduction paths without external paralleling. 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.
Rated for TJ = –55°C to +150°C operation, it delivers 500µA max reverse leakage at 25°C and 10mA at 100°C under rated VR, supporting stable performance in thermally demanding industrial and automotive-qualified designs when paired with AEC-Q101 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum non-repetitive reverse blocking voltage; defines safe operating limit in flyback/freewheeling applications |
| IF | 20 A - Continuous average forward current; determines heatsink sizing and PCB copper area requirements |
| VF | ≤0.70 V @ 10A, 25°C - Low conduction loss directly reduces power dissipation and improves system efficiency |
| IFSM | 200 A - Peak non-repetitive surge current handling; supports inrush and fault transient robustness |
| RθJC | 1.5 °C/W - Junction-to-case thermal resistance; enables accurate thermal modeling for mechanical layout |
| IR | ≤500 µA @ 50V, 25°C - Low reverse leakage preserves standby power budget in energy-sensitive systems |
| TJ max | +150 °C - Extended junction temperature rating allows operation in high-ambient environments without derating |
Pinout & Package
Package: TO-247AD (TO-3P), 3-terminal through-hole package with isolated mounting tab (cathode-connected tab), matte tin-plated leads, UL 94V-0 molding compound, and polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input current entry point | Connected to switching node or transformer secondary; requires low-inductance routing to minimize ringing |
| Cathode (Lead 2) | Output current exit point | Typically tied to common ground or output rail; electrically connected to metal tab for thermal path |
| Mounting Tab (Cathode) | Thermal & electrical cathode terminal | Provides primary heat transfer path to heatsink; must be electrically isolated unless circuit design permits cathode tie |
Key Features
| Feature | Design Value |
|---|---|
| Dual-die configuration | Enables 20A continuous conduction with balanced current sharing and reduced thermal hot spots vs. single-die alternatives |
| Guard ring structure | Improves ruggedness against transient overvoltage events without external snubbers in SMPS flyback outputs |
| Junction temperature rating up to +150°C | Supports reliable operation in enclosed industrial enclosures or under-hood automotive locations without forced air |
| UL Recognized File # E-326243 | Validates safety compliance for end-equipment certification in AC/DC adapters and power supplies |
| Halogen-free per IEC 61249-2-21 | Meets environmental compliance requirements for RoHS-compliant manufacturing and disposal |
Applications
| Switching Mode Power Supply (SMPS) | DC–DC Converters |
|---|---|
Use Scenario: Primary-side synchronous rectification in 50–200W offline flyback or forward converters. IC Role / Device Role / Timing Role: Output rectifier replacing conventional silicon diodes to reduce conduction loss and improve efficiency. Use Value: 0.70V VF enables >2% efficiency gain over 1N5408 at 10A, lowering thermal load on heatsinks and improving power density. | Use Scenario: Secondary-side rectification in isolated 12V/24V industrial DC–DC modules. IC Role / Device Role / Timing Role: High-current freewheeling path during MOSFET off-time in buck-derived topologies. Use Value: 200A IFSM withstands startup surges and short-circuit transients without degradation, enhancing system reliability. |
| Flat Panel Monitor Power | AC–DC Adapters |
Use Scenario: Main 12V/19V output rectification in slim-profile LCD monitor internal PSUs. IC Role / Device Role / Timing Role: Low-VF Schottky rectifier minimizing voltage drop and heat generation in space-constrained chassis. Use Value: TO-247AD package with 1.5°C/W RθJC allows direct bolt-down heatsinking, eliminating need for thermal vias or oversized copper pours. | Use Scenario: Output stage rectification in universal-input 65W laptop adapters. IC Role / Device Role / Timing Role: High-efficiency, low-noise rectifier meeting CoC Tier 2 and DoE Level VI standby requirements. Use Value: 500µA IR at 25°C ensures <5mW standby loss contribution, supporting sub-100mW no-load consumption targets. |
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-20CPH05 | Same 50V VRRM, 20A IF, but TO-247AC package; VF = 0.67V @10A; RθJC = 1.7°C/W | Slightly lower VF but higher thermal resistance; requires larger heatsink area for equivalent ΔT | Prefer when lower conduction loss is prioritized over thermal interface simplicity |
| ON Semiconductor MUR2050CT | 50V VRRM, 20A IF, but ultra-fast recovery silicon diode (not Schottky); VF ≈ 1.15V @10A; TJ max = 175°C | Higher VF increases conduction loss; superior surge rating (IFSM = 250A) and higher TJ rating | Choose only if Schottky leakage or soft recovery is not required and higher surge margin is critical |
Compared with VS-20CPH05 and MUR2050CT, the SR2050PT offers optimal balance of low VF, proven thermal performance (1.5°C/W), and AEC-Q101 qualification path - making it preferred for thermally constrained, high-efficiency industrial and automotive-adjacent power supplies where Schottky advantages are essential.
Availability
SR2050PT is available at Aetrix Electronics and suitable for switching mode power supplies, DC–DC converters, and AC–DC adapters requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for SR2050PT 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 rectifiers, TVS devices, and MOSFETs for industrial and consumer markets.
The SR20xxPT series was designed specifically for high-current, high-efficiency output rectification in compact, thermally demanding power supplies - emphasizing low VF, rugged surge capability, and extended temperature operation.
FAQ
What is the maximum junction temperature rating for the SR2050PT?
The SR2050PT has a maximum junction temperature (TJ max) rating of +150°C, confirmed in the Absolute Maximum Ratings table. This allows operation in high-ambient environments such as enclosed industrial power supplies or under-hood automotive auxiliary systems. The SR2050PT must be mounted with appropriate thermal interface material and heatsinking to maintain junction temperature within this limit during full-load operation.
Is the SR2050PT pin-compatible with other parts in the SR20xxPT family?
Yes, all SR20xxPT variants - including SR2020PT, SR2030PT, SR2040PT, SR2050PT, SR2060PT, SR2090PT, SR20100PT, and SR20150PT - share identical TO-247AD (TO-3P) packaging, pinout, and mechanical footprint. The SR2050PT can be substituted for any other member of the family without PCB layout changes, provided voltage and thermal requirements are verified for the target application.
Does the SR2050PT have AEC-Q101 qualification?
The base SR2050PT is not AEC-Q101 qualified; however, the AEC-Q101 variant is designated SR2050PTH (with 'H' suffix). The SR2050PT datasheet explicitly states "AEC-Q101 qualified available", confirming that qualification applies only to the H-suffix version. For automotive-grade designs, SR2050PTH must be specified and sourced separately from SR2050PT.
What is the forward voltage specification for the SR2050PT at 20A?
The SR2050PT datasheet specifies forward voltage only at IF = 10A (VF ≤ 0.70V, TJ = 25°C); no guaranteed VF value is provided at 20A. Based on typical forward characteristics curve (Fig.4), VF at 20A and 25°C is approximately 0.82V. Designers should use derated values - e.g., 0.85V - for thermal worst-case (TJ = 125°C) margining in production systems using SR2050PT.
How is the mounting tab electrically connected in the SR2050PT?
In the SR2050PT, the metal mounting tab is internally connected to the cathode terminal (Lead 2), as confirmed by the marking diagram and mechanical data. This configuration requires electrical isolation from the heatsink unless the cathode node is at system ground potential. Insulating hardware (e.g., shoulder washers, mica pads) must be used when mounting SR2050PT to floating or non-grounded heatsinks to prevent short circuits.
SR2050PT 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):
- 50 V
- Current - Average Rectified (Io) (per Diode):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 700 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 50 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-247AD (TO-3P)
SR2050PT FAQ
1.How can I place an order for SR2050PT through Aetrix?
Please submit a Request for Quotation (RFQ) for SR2050PT 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 SR2050PT reliable?
The price and inventory of SR2050PT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR2050PT is usually 5 days.
3.What payment methods are accepted for SR2050PT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR2050PT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR2050PT?
SR2050PT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR2050PT 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 SR2050PT?
For technical support, including SR2050PT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR2050PT requirements.
6.How does Aetrix verify that SR2050PT is sourced from the original manufacturer or authorized distributors?
All SR2050PT 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 SR2050PT meets industry standards.
7.What is the process for return or replacement of SR2050PT?
All SR2050PT units undergo pre-shipment inspection (PSI). If there is an issue with SR2050PT, 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 SR2050PT part is unused and in its original packaging.
Return procedure for SR2050PT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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