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Taiwan Semiconductor Corporation TSF30L45C
- Part No.:
- TSF30L45C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
TSF30L45C.pdf
- Description:
- DIODE ARR SCHOT 45V 15A ITO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,385
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Product details
Overview
TSF30L45C from Taiwan Semiconductor is a 30A, 45V trench Schottky rectifier in ITO-220AB package with dual-die configuration, 0.55V max forward voltage at 15A/25°C, 180A surge rating, and 4°C/W junction-to-case thermal resistance-used in high-efficiency SMPS secondary-side rectification.
For engineers reviewing the TSF30L45C datasheet, TSF30L45C pinout, TSF30L45C application, or TSF30L45C equivalent, key selection criteria include forward voltage at operating temperature, thermal resistance under forced-air or heatsink mounting, reverse leakage at 125°C, and compatibility with 45V-rated DC/DC output stages.
Technical Context
This device implements a dual-die trench Schottky architecture optimized for low conduction loss and high-temperature stability. Its 45V VRRM, 30A continuous forward current, and 180A non-repetitive surge capability support high-duty-cycle switching topologies.
The ITO-220AB package provides direct metal tab thermal path to heatsink, enabling operation up to 150°C junction temperature while maintaining <500µA reverse leakage at 25°C and 60mA at 125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum reverse blocking voltage for 45V-output SMPS designs |
| IF | 30 A - Continuous forward current rating at case temperature ≤75°C with heatsink |
| VF (max) | 0.55 V @ 15A, 25°C - Enables >92% efficiency in 12V→5V synchronous-like rectification |
| IFSM | 180 A - Withstands 8.3ms half-sine surge during power-up or fault transients |
| RθJC | 4 °C/W - Requires ≥25 cm² aluminum heatsink for 30A continuous operation at TC = 85°C |
| TJ(max) | 150 °C - Supports operation in sealed industrial enclosures without active cooling |
| IR (max) | 60 mA @ 125°C - Limits standby power loss in always-on DC/DC converters |
Pinout & Package
Package: ITO-220AB - Insulated TO-220 variant with electrically isolated metal tab, matte tin-plated leads, UL 94V-0 molding compound, and polarity marking per device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Input terminal for first Schottky die | Connected to transformer secondary or input rail in dual-phase rectifier layout |
| Cathode (common) | Shared output node for both dies | Direct connection to output capacitor bank; requires low-inductance PCB trace |
| Anode 2 | Input terminal for second Schottky die | Enables interleaved or center-tapped transformer secondary routing |
| Metal Tab | Electrically isolated thermal path | Mounts to heatsink without insulator washer; rated for 0.56 N·m torque |
Key Features
| Feature | Design Value |
|---|---|
| Trench Schottky technology | Reduces forward voltage by ~0.07V vs. planar Schottky at 15A, lowering conduction loss by 13% |
| High-temperature reverse stability | 60mA IR at 125°C enables reliable operation in automotive under-hood DC/DC modules |
| Dual-die configuration | Supports parallel-path rectification without external current-sharing components |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21 for lead-free assembly and environmental safety requirements |
Applications
| Server Power Supply Rectification | Laptop Adapter Output Stage |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 48V→12V server PSU with 80 PLUS Titanium efficiency target. IC Role / Device Role / Timing Role: High-current Schottky rectifier replacing MOSFETs in LLC resonant converter output stage. Use Value: 0.55V VF minimizes conduction loss at 30A load, contributing to >96% full-load efficiency. | Use Scenario: Compact 65W USB-C PD adapter with folded PCB layout and limited heatsink area. IC Role / Device Role / Timing Role: Dual-anode rectifier enabling center-tapped transformer winding utilization. Use Value: ITO-220AB's isolated tab allows direct heatsink mounting without insulation, saving board space. |
| Industrial On-Board DC/DC | LED Driver Secondary Rectification |
Use Scenario: 24V input, 5V/10A isolated DC/DC module for PLC I/O modules operating at 70°C ambient. IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 30A with 150°C junction limit. Use Value: 4°C/W RθJC supports derated 22A operation with 40°C/W system thermal resistance. | Use Scenario: Constant-current LED driver for street lighting with 45V string voltage and high thermal cycling. IC Role / Device Role / Timing Role: Low-VF rectifier minimizing heat generation near sensitive optical components. Use Value: 0.46V typical VF at 125°C reduces thermal stress on adjacent LED drivers and optics. |
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-30CPH045 | 45V VRRM, 30A, TO-247AC package, 0.57V VF max @ 15A/25°C, RθJC = 3.5°C/W | Larger footprint; higher thermal performance but requires different mounting hardware | Select when lower thermal resistance is critical and PCB layout allows TO-247AC placement |
| ON Semiconductor MBR3045CT | 45V VRRM, 30A, TO-220AB package, 0.72V VF max @ 15A/25°C, RθJC = 5.0°C/W | Higher forward voltage increases conduction loss by ~30% at full load | Select only for cost-sensitive legacy designs where 0.17V higher VF is acceptable |
Compared with VS-30CPH045 and MBR3045CT, TSF30L45C delivers superior forward voltage at elevated temperature and matches ITO-220AB mechanical compatibility while offering better thermal resistance than standard TO-220AB alternatives.
Availability
TSF30L45C is available at Aetrix Electronics and suitable for switching mode power supplies, laptop adapters, industrial on-board DC/DC converters, and LED driver designs requiring stable component supply with consistent parametric performance across production lots.
Supply support for TSF30L45C 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 diodes, and MOSFETs since 1979.
The TSF30LxxC series was developed specifically for high-efficiency, high-reliability secondary-side rectification in compact AC/DC and isolated DC/DC converters targeting industrial and computing applications.
FAQ
What is the maximum junction temperature rating for TSF30L45C?
The TSF30L45C has a maximum junction temperature (TJ) of +150°C, verified per absolute maximum ratings table. This allows operation in sealed enclosures or high-ambient environments when mounted to an appropriate heatsink. Derating curves in the datasheet define safe operating current versus case temperature, and the device must not exceed this limit during transient or steady-state conditions.
Does TSF30L45C have a common-cathode configuration?
Yes, TSF30L45C uses a common-cathode dual-die configuration: Anode 1 and Anode 2 are electrically isolated inputs, while the cathode terminal serves as the shared output node. This structure supports center-tapped transformer designs and interleaved rectification without external diode pairing.
What is the forward voltage specification for TSF30L45C at 125°C junction temperature?
At IF = 15A and TJ = 125°C, TSF30L45C exhibits a typical forward voltage of 0.46V and a maximum of 0.53V. This low-temperature coefficient improves efficiency retention in thermally stressed applications such as enclosed LED drivers or industrial DC/DC modules.
Is TSF30L45C RoHS and halogen-free compliant?
Yes, TSF30L45C complies with RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. The molding compound meets UL 94V-0 flammability rating, and terminals are matte tin-plated to meet J-STD-002 solderability requirements for lead-free reflow processes.
What is the surge current rating for TSF30L45C and how is it defined?
TSF30L45C has a non-repetitive peak forward surge current (IFSM) of 180A, specified for an 8.3ms single half-sine waveform superimposed on rated DC load. This rating ensures robustness against inrush currents during cold-start or output short-circuit recovery in SMPS and adapter applications.
TSF30L45C 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):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 15 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
TSF30L45C FAQ
1.How can I place an order for TSF30L45C through Aetrix?
Please submit a Request for Quotation (RFQ) for TSF30L45C 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 TSF30L45C reliable?
The price and inventory of TSF30L45C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSF30L45C is usually 5 days.
3.What payment methods are accepted for TSF30L45C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSF30L45C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSF30L45C?
TSF30L45C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSF30L45C 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 TSF30L45C?
For technical support, including TSF30L45C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSF30L45C requirements.
6.How does Aetrix verify that TSF30L45C is sourced from the original manufacturer or authorized distributors?
All TSF30L45C 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 TSF30L45C meets industry standards.
7.What is the process for return or replacement of TSF30L45C?
All TSF30L45C units undergo pre-shipment inspection (PSI). If there is an issue with TSF30L45C, 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 TSF30L45C part is unused and in its original packaging.
Return procedure for TSF30L45C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSF30L45C Tags
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