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Taiwan Semiconductor Corporation TSF10H45C
- Part No.:
- TSF10H45C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
TSF10H45C.pdf
- Description:
- DIODE ARR SCHOTT 45V 5A ITO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:4
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Product details
Overview
TSF10H45C from Taiwan Semiconductor is a dual-die trench Schottky rectifier rated for 10 A total forward current (5 A per diode), 45 V repetitive peak reverse voltage, and 110 A surge capability at 8.3 ms - deployed in high-efficiency SMPS, on-board DC/DC converters, and lighting power stages.
For engineers reviewing the TSF10H45C datasheet, TSF10H45C pinout, TSF10H45C application, or TSF10H45C equivalent, key selection factors include its ITO-220AB package thermal performance (RθJL = 4.1 °C/W per diode), low VF (0.47 V typ. @ 5 A, 25°C), and high-temperature IR stability (15 mA max @ 125°C).
Technical Context
The TSF10H45C integrates two independent Schottky die in a single ITO-220AB thermally optimized package, enabling dual-channel rectification without paralleling discrete devices. Its trench architecture delivers lower VF and superior TJ = 125°C reverse leakage (15 mA) versus planar Schottkys.
Thermal design is supported by validated junction-to-lead resistance of 4.1 °C/W per diode when mounted on a 2" × 3" × 0.25" aluminum heatsink, and its matte tin-plated leads comply with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - supports 36 V nominal bus designs with 25% margin against transients |
| IF (total) | 10 A - dual-die configuration delivers 5 A per diode continuously |
| IFSM (8.3 ms) | 110 A - withstands high-energy inrush during cold-start in AC/DC adapters |
| VF @ 5 A, 25°C | 0.47 V (typ) - reduces conduction loss by ~30% vs. standard silicon rectifiers |
| RθJL per diode | 4.1 °C/W - enables direct heatsink mounting without thermal interface material in space-constrained layouts |
| IR @ 125°C | 15 mA max - maintains low leakage under sustained high-temperature operation in LED drivers |
Pinout & Package
Package: ITO-220AB - insulated TO-220 variant with internal isolation barrier, UL 94V-0 molding compound, and 0.56 N·m maximum mounting torque. Polarity marked on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (A1) | First diode anode | Connected to input rail in half-wave or center-tap rectifier topologies |
| Cathode (K) | Common cathode | Shared output node for both diodes; ties to +VOUT in dual-output or synchronous buck applications |
| Anode 2 (A2) | Second diode anode | Enables independent input path - e.g., redundancy or dual-input supply routing |
Key Features
| Feature | Design Value |
|---|---|
| Trench Schottky technology | Reduces forward voltage drop and improves temperature coefficient vs. planar Schottky structures |
| High surge capability (380 A @ 1 ms) | Survives short-duration overcurrent events without bond-wire fusing |
| Junction-to-lead thermal resistance (4.1 °C/W) | Permits higher continuous current in constrained thermal environments without forced airflow |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21 and global environmental directives for industrial and consumer end equipment |
Applications
| Server Power Supply | LED Streetlight Driver |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 80 PLUS Titanium-certified 1 kW server PSUs. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier replacing MOSFETs in OR-ing and output rectification stages. Use Value: Achieves <0.5 V forward drop at 5 A, reducing conduction loss by 1.8 W per diode versus Si alternatives. | Use Scenario: Constant-current output stage in outdoor-rated 150 W LED drivers operating at ambient up to 85°C. IC Role / Device Role / Timing Role: High-reliability output rectifier handling 10 A pulsed load with minimal thermal derating. Use Value: Maintains only 15 mA reverse leakage at 125°C junction, preventing output drift in sealed enclosures. |
| Laptop Adapter | Automotive DC/DC Converter |
Use Scenario: Output rectification in compact 65 W GaN-based USB-C PD adapters. IC Role / Device Role / Timing Role: Dual-die configuration allows independent winding coupling for multi-output flyback designs. Use Value: Enables 94%+ efficiency at full load while meeting EN 62368-1 creepage/clearance via ITO-220AB insulation. | Use Scenario: 12 V → 5 V/3.3 V step-down converter in automotive body control modules. IC Role / Device Role / Timing Role: Input protection and rectification for reverse-polarity tolerant front-end stages. Use Value: Withstands 110 A surge from load dump events and operates reliably from –55°C to +150°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-10BQ045 | Single-die, 10 A, 45 V; RθJL = 5.0 °C/W; VF = 0.52 V @ 5 A, 25°C | No dual-anode configuration - requires two devices for same topology flexibility | Preferred where board area permits discrete placement and lower cost outweighs thermal advantage |
| ON Semiconductor MBR1045CT | TO-220AC package (non-insulated); VF = 0.55 V @ 5 A, 25°C; IFSM = 120 A | Lacks internal isolation - requires external creepage management in safety-critical AC/DC | Selected when isolation is handled at PCB level and higher surge margin is prioritized |
Compared with VS-10BQ045 and MBR1045CT, the TSF10H45C provides superior thermal resistance and integrated dual-anode functionality in an insulated package - critical for compact, high-density, and safety-compliant power supplies where layout space and isolation integrity are constrained.
Availability
TSF10H45C is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and on-board DC/DC converters requiring stable component supply across industrial, computing, and consumer production programs.
Supply support for TSF10H45C 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 power semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, computing, and consumer markets since 1992.
The TSF series targets high-efficiency, high-reliability power conversion - specifically engineered for Schottky rectification in thermally demanding, space-constrained, and safety-regulated applications.
FAQ
What is the maximum junction temperature rating for the TSF10H45C?
The TSF10H45C has a maximum junction temperature (TJ) of +150°C, with operational range from –55°C to +150°C. This rating is validated under specified thermal mounting conditions using a 2" × 3" × 0.25" aluminum heatsink. Derating curves in the official datasheet confirm 10 A total current remains sustainable up to 110°C case temperature. The TSF10H45C must not exceed this limit to ensure long-term reliability and parametric stability.
Does the TSF10H45C support dual independent rectification paths?
Yes - the TSF10H45C contains two electrically isolated Schottky die sharing a common cathode terminal (K), with separate anodes (A1 and A2). This dual-anode configuration enables independent input routing - for example, in redundant power inputs or dual-winding flyback transformers. The TSF10H45C's internal structure avoids cross-conduction and supports true channel separation without external isolation components.
What is the forward voltage specification of the TSF10H45C at elevated temperature?
At 5.0 A and junction temperature of 125°C, the TSF10H45C exhibits a typical forward voltage (VF) of 0.39 V and a maximum of 0.46 V. This low, negative temperature coefficient - confirmed in the device's forward characteristics curve - ensures improved conduction efficiency under thermal stress, unlike silicon rectifiers whose VF rises with temperature. The TSF10H45C maintains this performance across its full operating range.
Is the TSF10H45C RoHS and halogen-free compliant?
Yes - the TSF10H45C meets RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. Its molding compound is UL 94V-0 rated, and terminals are matte tin-plated per J-STD-002 for solderability. These compliance attributes are verified in TSC's official product documentation and certified by third-party testing labs. The TSF10H45C is suitable for environmentally regulated end equipment including EU consumer and industrial products.
What thermal resistance values are specified for the TSF10H45C in the datasheet?
The TSF10H45C specifies RθJL = 4.1 °C/W, RθJC = 4.2 °C/W, and RθJA = 15.6 °C/W - all per diode - measured under standardized test conditions with a 2" × 3" × 0.25" aluminum heatsink. These values reflect the ITO-220AB package's enhanced thermal path from junction to lead, enabling higher power density than conventional TO-220 variants. The TSF10H45C's thermal performance is integral to its 10 A continuous rating.
TSF10H45C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack, Isolated Tab
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io) (per Diode):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 480 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 45 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AB
TSF10H45C FAQ
1.How can I place an order for TSF10H45C through Aetrix?
Please submit a Request for Quotation (RFQ) for TSF10H45C 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 TSF10H45C reliable?
The price and inventory of TSF10H45C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSF10H45C is usually 5 days.
3.What payment methods are accepted for TSF10H45C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSF10H45C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSF10H45C?
TSF10H45C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSF10H45C 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 TSF10H45C?
For technical support, including TSF10H45C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSF10H45C requirements.
6.How does Aetrix verify that TSF10H45C is sourced from the original manufacturer or authorized distributors?
All TSF10H45C 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 TSF10H45C meets industry standards.
7.What is the process for return or replacement of TSF10H45C?
All TSF10H45C units undergo pre-shipment inspection (PSI). If there is an issue with TSF10H45C, 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 TSF10H45C part is unused and in its original packaging.
Return procedure for TSF10H45C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSF10H45C Tags
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