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Taiwan Semiconductor Corporation TST20U60C
- Part No.:
- TST20U60C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-3
- Datasheet:
-
TST20U60C.pdf
- Description:
- DIODE SCHOTTKY 60V 10A TO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:5
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Product details
Overview
TST20U60C from Taiwan Semiconductor is a 20A, 60V trench Schottky rectifier in TO-220AB package, featuring dual-die construction, low forward voltage (0.63 V at 20 A, 25°C), high surge capability (120 A), and 150°C maximum junction temperature - deployed in high-efficiency AC/DC adapters and DC/DC converters.
For engineers reviewing the TST20U60C datasheet, TST20U60C pinout, TST20U60C application, or TST20U60C equivalent, key selection criteria include forward voltage at rated current and temperature, thermal resistance (2.4°C/W), repetitive peak reverse voltage, surge rating, and RoHS/halogen-free compliance for industrial power supply design.
Technical Context
This device uses patented trench Schottky technology to achieve stable performance up to 150°C junction temperature and low VF across operating conditions. Its dual-die configuration enables parallel conduction paths within a single TO-220AB package, improving current handling without external paralleling.
The TST20U60C delivers 0.63 V forward voltage at 20 A and 25°C, rising to 0.61 V at 20 A and 125°C - confirming excellent high-temperature stability. Its 10,000 V/μs dv/dt rating supports reliable operation in fast-switching SMPS topologies with minimal risk of false turn-on.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 60 V - Maximum repetitive reverse blocking voltage; defines usable input voltage range in bridge or output rectification stages |
| IF | 20 A - Continuous average forward current; determines heatsink sizing and duty-cycle limits in DC/DC converters |
| IFSM | 120 A - Non-repetitive surge current (8.3 ms half-sine); withstands inrush and transient overloads in power adapters |
| VF @ 20A, 25°C | 0.63 V - Low conduction loss directly reduces power dissipation and improves system efficiency above 90% |
| RθJC | 2.4 °C/W - Junction-to-case thermal resistance; enables accurate thermal modeling when mounted to heatsink with thermal interface material |
| TJ max | 150 °C - Maximum allowable junction temperature; supports operation in sealed or high-ambient environments without derating |
Pinout & Package
Package: TO-220AB, single-ended, 3-terminal case with isolated tab (cathode-connected tab). Mounting torque ≤ 0.56 N·m. Matte tin-plated leads, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Tab (Case) | Cathode (electrically connected) | Provides low-inductance, high-current cathode path; requires electrical isolation from heatsink unless circuit design intentionally references cathode to chassis ground |
| Lead 1 | Anode | Primary anode connection for forward conduction; used in single-phase rectification or freewheeling paths |
| Lead 2 | Anode (dual-die configuration) | Second anode terminal enabling internal parallel die layout - not independent devices; both anodes share common cathode (tab) |
Key Features
| Feature | Design Value |
|---|---|
| Trench Schottky technology | Enables lower VF and higher temperature stability vs planar Schottky; reduces conduction loss by ~15% compared to legacy 60V Schottkys at 125°C |
| Low VF at high temperature | 0.61 V at 20 A and 125°C - maintains efficiency in thermally constrained enclosures without forced air cooling |
| High IFSM rating | 120 A surge capacity - eliminates need for external surge-limiting resistors in adapter input rectification |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive - supports green manufacturing and export compliance for global OEMs |
Applications
| AC/DC Power Adapters | Server & Telecom DC/DC Converters |
|---|---|
Use Scenario: Secondary-side synchronous rectification replacement in 65–120 W laptop adapters and USB-C PD chargers. IC Role / Device Role / Timing Role: High-efficiency output rectifier replacing MOSFETs or standard Schottkys to reduce conduction loss and simplify gate drive. Use Value: 0.63 V VF at 20 A lowers output stage loss by ≥0.5 W vs comparable 60V Schottkys, improving thermal margin and enabling smaller heatsinks. | Use Scenario: Output rectification in 48 V input, 12 V/20 A intermediate bus converters for data center power supplies. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier providing parallel conduction path in high-current secondary winding configurations. Use Value: Dual-die structure supports 20 A continuous current with <2.4°C/W thermal resistance - avoids paralleling discrete diodes and associated layout complexity. |
| Industrial Motor Drive Power Stages | LED Driver Secondary Rectification |
Use Scenario: Freewheeling diode in 24–48 V BLDC motor control inverters with PWM switching frequencies >100 kHz. IC Role / Device Role / Timing Role: Fast-recovery, low-VF freewheeling path minimizing voltage spikes and conduction loss during PWM dead-time. Use Value: 10,000 V/μs dv/dt rating prevents spurious turn-on during fast voltage transients; 150°C TJ max allows mounting near power MOSFETs. | Use Scenario: Output rectification in constant-current LED drivers for street lighting and high-bay fixtures (36–72 V output). IC Role / Device Role / Timing Role: Primary secondary-side rectifier delivering stable DC current with minimal ripple-induced heating. Use Value: Low 300 µA IR at 25°C and 60 mA at 125°C ensures minimal leakage loss across wide ambient temperature ranges (-40°C to +85°C). |
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-20CPH06 | Same TO-220AB package, 20 A/60 V, VF = 0.65 V @ 20 A, 25°C; RθJC = 2.5°C/W | Slightly higher VF and thermal resistance; identical surge rating (120 A) and TJ max (150°C) | Acceptable where 20 mV higher VF is tolerable and thermal margin permits 0.1°C/W higher RθJC |
| ON Semiconductor MUR2060CT | TO-220AB dual common-cathode configuration, but ultrafast recovery diode (not Schottky); VF ≈ 1.7 V @ 20 A | Higher conduction loss, slower switching; suitable only where reverse recovery noise must be minimized over VF reduction | Select only if EMI constraints outweigh efficiency requirements - TST20U60C offers 63% lower conduction loss |
Compared with VS-20CPH06 and MUR2060CT, the TST20U60C delivers the lowest forward voltage among 60V/20A TO-220AB rectifiers confirmed in production, with verified thermal performance and halogen-free compliance - making it optimal for efficiency-critical, thermally constrained, and environmentally regulated designs.
Availability
TST20U60C is available at Aetrix Electronics and suitable for AC/DC adapters, telecom DC/DC converters, and industrial motor drives requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for TST20U60C 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 Company (TSC) is a vertically integrated analog and power discrete manufacturer headquartered in Hsinchu, Taiwan, serving global power supply, industrial, and computing markets since 1979.
The TST20UxxC series targets high-efficiency, high-reliability power conversion systems - specifically engineered to replace legacy planar Schottkys with trench-based architecture for improved thermal stability and reduced conduction loss in compact adapters and converters.
FAQ
What is the maximum junction temperature rating for the TST20U60C?
The TST20U60C has a maximum junction temperature (TJ max) of 150°C, verified per absolute maximum ratings in the official datasheet. This rating allows operation in sealed enclosures or high-ambient environments without derating up to 125°C case temperature when properly heatsinked. The TST20U60C maintains stable forward voltage and leakage characteristics across this full range.
Does the TST20U60C have a dual-anode configuration, and how is it implemented?
Yes, the TST20U60C uses a dual-die configuration with two anode terminals (Leads 1 and 2) sharing a common cathode (the isolated metal tab). This is not two independent diodes but a single rectifier with internally parallel dies - confirmed in mechanical data and marking diagrams. It enables higher current handling in TO-220AB without external paralleling.
What is the forward voltage of the TST20U60C at 20 A and 125°C?
The TST20U60C exhibits a maximum forward voltage of 0.61 V at 20 A and 125°C, as specified in the Electrical Specifications table under "TST20U60C" column. This value reflects its trench Schottky technology's superior high-temperature stability versus conventional Schottkys, which typically exceed 0.7 V under identical conditions.
Is the TST20U60C RoHS and halogen-free compliant?
Yes, the TST20U60C is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the official documentation. The molding compound meets UL 94V-0 flammability rating, and matte tin-plated leads comply with J-STD-002 for solderability - all verified for production-grade environmental compliance.
What is the junction-to-case thermal resistance (RθJC) of the TST20U60C?
The junction-to-case thermal resistance (RθJC) of the TST20U60C is 2.4°C/W, as published in the THERMAL PERFORMANCE section of the datasheet. This value is measured under standard test conditions and enables accurate thermal modeling when the device is mounted to a heatsink using industry-standard thermal interface materials.
TST20U60C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 60 V
- Current - Average Rectified (Io):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 630 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 300 µA @ 60 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AB
- Operating Temperature - Junction:
- -55°C ~ 150°C
TST20U60C FAQ
1.How can I place an order for TST20U60C through Aetrix?
Please submit a Request for Quotation (RFQ) for TST20U60C 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 TST20U60C reliable?
The price and inventory of TST20U60C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TST20U60C is usually 5 days.
3.What payment methods are accepted for TST20U60C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TST20U60C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TST20U60C?
TST20U60C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TST20U60C 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 TST20U60C?
For technical support, including TST20U60C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TST20U60C requirements.
6.How does Aetrix verify that TST20U60C is sourced from the original manufacturer or authorized distributors?
All TST20U60C 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 TST20U60C meets industry standards.
7.What is the process for return or replacement of TST20U60C?
All TST20U60C units undergo pre-shipment inspection (PSI). If there is an issue with TST20U60C, 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 TST20U60C part is unused and in its original packaging.
Return procedure for TST20U60C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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