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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation TSUP15M45SH

Name: TSUP15M45SH
Brand: Taiwan Semiconductor Corporation
SKU: TSUP15M45SH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TSUP15M45SH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: TO-277, 3-PowerDFN

Datasheet:: TSUP15M45SH.pdf

Description:: DIODE SCHOTTKY 45V 15A SMPC4.6U

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Product details

Overview

TSUP15M45SH from Taiwan Semiconductor is a 15A, 45V AEC-Q101-qualified trench Schottky rectifier in TO-277A (SMPC4.6U) package, featuring 0.51V forward voltage at 15A/25°C, 290A surge rating, and wettable flank terminals for automated optical inspection. It serves as a primary output rectifier in automotive DC/DC converters.

For engineers reviewing the TSUP15M45SH datasheet, TSUP15M45SH pinout, TSUP15M45SH application, or TSUP15M45SH equivalent, key selection criteria include junction-to-lead thermal resistance (4°C/W), moisture sensitivity level 1 compliance, JESD201 Class 2 whisker resistance, RoHS/halogen-free status, and AEC-Q101 qualification for under-hood power conversion.

Technical Context

This single-die Schottky rectifier uses patented trench architecture to reduce forward voltage and leakage current while maintaining high surge robustness. Its 45V V_RRM and 175°C maximum junction temperature support operation in high-temperature automotive environments.

The device's 1803pF junction capacitance at 1MHz/4V and low R_θJL of 4°C/W enable efficient high-frequency switching in SMPS topologies. Polarity is marked by cathode band; terminals are matte tin-plated per J-STD-002.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	45 V - Maximum reverse blocking voltage without breakdown
I_F	15 A - Continuous average forward current on 16mm×16mm Cu pad PCB
I_FSM	290 A - Peak non-repetitive surge current (8.3ms half-sine)
V_F @ 15A/25°C	0.51 V (max) - Low conduction loss enabling >92% efficiency in 12V→5V DC/DC
R_θJL	4 °C/W - Enables direct thermal coupling to PCB copper for passive cooling
T_J(max)	175 °C - Supports operation in engine bay ambient up to 125°C with margin
MSL	Level 1 - No floor life limitation; safe for standard SMT reflow without baking

Pinout & Package

Package: TO-277A (SMPC4.6U), surface-mount, single-anode/single-cathode configuration with wettable flank leads and cathode band polarity marking. Weight: 0.104g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Input current terminal	Connected to switching node (e.g., MOSFET drain); accepts pulsed 290A surges
Cathode	Output current terminal	Connected to output rail; features wettable flank for AOI-compatible solder joint inspection
Case / Tab	Thermal path only	Electrically isolated; serves as primary heat dissipation path to PCB copper

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive powertrain and chassis applications per stress test requirements
Trench Schottky technology	Reduces V_F by ~12% vs. planar Schottky at 15A, lowering conduction loss in 48V systems
Wettable flank leads	Enables automated optical inspection of solder fillet height and coplanarity on SMT assembly lines
JESD201 Class 2 whisker resistance	Prevents tin whisker growth under thermal cycling, critical for 15+ year automotive service life
Halogen-free (IEC 61249-2-21)	Meets EU ELV Directive and OEM material declarations for end-of-life vehicle recycling

Applications

Automotive On-Board Charger (OBC) DC/DC Stage	Industrial LED Driver Secondary Rectification
Use Scenario: High-efficiency 48V-to-12V buck converter in electric vehicle OBC auxiliary power unit. IC Role / Device Role / Timing Role: Output synchronous rectifier replacing MOSFETs in CCM operation; handles 15A continuous load with minimal thermal derating. Use Value: 0.51V V_F reduces conduction loss by 1.8W vs. comparable 45V Si diode, improving system efficiency from 90.2% to 92.7%.	Use Scenario: Secondary-side rectification in constant-current LED driver for street lighting with 100–240VAC input. IC Role / Device Role / Timing Role: Freewheeling diode in flyback secondary; operates at 50–100kHz with 15A peak current pulses. Use Value: 175°C T_J(max) allows full 15A rating at 85°C ambient without forced air, reducing heatsink size by 35%.
Server PSU +12V Output Rectification	USB-C PD Adapter Secondary Side
Use Scenario: +12V output rectifier in 80 PLUS Titanium server power supply operating at 200kHz. IC Role / Device Role / Timing Role: Primary output rectifier in synchronous rectified LLC resonant converter; conducts 15A RMS current. Use Value: 1803pF junction capacitance minimizes switching loss during zero-voltage switching transitions, preserving ZVS margin.	Use Scenario: Secondary-side rectification in compact 65W USB-C PD adapter with 30mm × 30mm PCB area constraint. IC Role / Device Role / Timing Role: Output rectifier in QR flyback; mounted directly on 16mm × 16mm Cu pad for passive thermal management. Use Value: R_θJL = 4°C/W enables 15A operation with ≤40°C junction rise above board temperature-no heatsink required.

Automotive On-Board Charger (OBC) DC/DC Stage

Industrial LED Driver Secondary Rectification

Use Scenario: High-efficiency 48V-to-12V buck converter in electric vehicle OBC auxiliary power unit.

IC Role / Device Role / Timing Role: Output synchronous rectifier replacing MOSFETs in CCM operation; handles 15A continuous load with minimal thermal derating.

Use Value: 0.51V V_F reduces conduction loss by 1.8W vs. comparable 45V Si diode, improving system efficiency from 90.2% to 92.7%.

Use Scenario: Secondary-side rectification in constant-current LED driver for street lighting with 100–240VAC input.

IC Role / Device Role / Timing Role: Freewheeling diode in flyback secondary; operates at 50–100kHz with 15A peak current pulses.

Use Value: 175°C T_J(max) allows full 15A rating at 85°C ambient without forced air, reducing heatsink size by 35%.

Server PSU +12V Output Rectification

USB-C PD Adapter Secondary Side

Use Scenario: +12V output rectifier in 80 PLUS Titanium server power supply operating at 200kHz.

IC Role / Device Role / Timing Role: Primary output rectifier in synchronous rectified LLC resonant converter; conducts 15A RMS current.

Use Value: 1803pF junction capacitance minimizes switching loss during zero-voltage switching transitions, preserving ZVS margin.

Use Scenario: Secondary-side rectification in compact 65W USB-C PD adapter with 30mm × 30mm PCB area constraint.

IC Role / Device Role / Timing Role: Output rectifier in QR flyback; mounted directly on 16mm × 16mm Cu pad for passive thermal management.

Use Value: R_θJL = 4°C/W enables 15A operation with ≤40°C junction rise above board temperature-no heatsink required.

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-15EWH04-M3	Same 45V V_RRM, 15A I_F, but TO-277A package lacks wettable flank; V_F = 0.55V (max) at 15A/25°C	No AOI-compatible lead geometry; requires X-ray inspection for solder joint quality assurance	Select when AEC-Q101 not required and optical inspection capability is unavailable
ON Semiconductor MUR1540CT	Higher 400V V_RRM, but ultrafast recovery diode (not Schottky); V_F = 0.95V (typ) at 15A/25°C; TO-220AC package	Higher conduction loss increases thermal load; through-hole mounting incompatible with high-density SMT layouts	Select only for legacy designs requiring higher reverse voltage margin and accepting 2.5× higher conduction loss

Compared with VS-15EWH04-M3 and MUR1540CT, TSUP15M45SH delivers lower forward voltage, AEC-Q101 qualification, wettable flank leads for automated inspection, and superior thermal performance in surface-mount automotive and industrial power supplies.

Availability

TSUP15M45SH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial LED drivers, and USB-C PD adapters requiring stable component supply, AEC-Q101 compliance, and high-reliability SMT rectification.

Supply support for TSUP15M45SH 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 devices, ESD protection, and analog ICs since 1979.

The TSUP series targets high-efficiency, high-reliability power conversion in automotive and industrial applications, with trench Schottky rectifiers engineered specifically for AEC-Q101 compliance, low thermal resistance, and automated manufacturing compatibility.

FAQ

What is the maximum junction temperature rating for TSUP15M45SH?

The TSUP15M45SH has a maximum junction temperature (T_J) rating of +175°C, verified per AEC-Q101 stress testing. This allows operation in under-hood automotive environments where ambient temperatures reach 125°C while maintaining sufficient thermal margin. The device's R_θJL of 4°C/W ensures effective heat transfer to the PCB, making TSUP15M45SH suitable for thermally constrained layouts without active cooling.

Is TSUP15M45SH qualified for automotive applications?

Yes, TSUP15M45SH is AEC-Q101 qualified, meaning it has passed rigorous stress tests including HTGB, HTRB, TST, and mechanical shock per the AEC-Q101 standard. Its construction-including JESD201 Class 2 whisker resistance, MSL Level 1 handling, and halogen-free molding compound-meets Tier 1 automotive supplier requirements. TSUP15M45SH is deployed in on-board DC/DC converters and ADAS power modules where reliability over 15 years is mandatory.

What does the "SH" suffix indicate in TSUP15M45SH?

The "SH" suffix in TSUP15M45SH denotes the TO-277A (SMPC4.6U) package variant with wettable flank leads and matte tin plating compliant with J-STD-002. This distinguishes it from non-wettable variants (e.g., TSUP15M45S) and confirms its suitability for automated optical inspection in high-volume SMT production. The marking code "15M45" appears on the device body per ordering information.

How does the forward voltage of TSUP15M45SH compare at elevated temperature?

At 15A and 125°C junction temperature, TSUP15M45SH exhibits a typical forward voltage of 0.44V and a maximum of 0.54V-significantly lower than silicon diodes and stable across temperature. This positive temperature coefficient improves current sharing in parallel configurations and reduces thermal runaway risk. The 0.44V value at 125°C enables consistent efficiency in automotive applications where junction temperatures routinely exceed 100°C.

What is the surge current capability of TSUP15M45SH and how is it tested?

TSUP15M45SH supports a non-repetitive peak forward surge current (I_FSM) of 290A for an 8.3ms half-sine wave and 440A for a 1.0ms pulse, per absolute maximum ratings. These values are validated using standardized surge testing per JESD201 and JEDEC standards. The robust surge rating makes TSUP15M45SH suitable for handling inrush currents in SMPS outputs and transient events in automotive 12V/48V systems without degradation.

TSUP15M45SH Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: TO-277, 3-PowerDFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 45 V

Current - Average Rectified (Io):: 15A

Voltage - Forward (Vf) (Max) @ If:: 600 mV @ 15 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 350 µA @ 45 V

Capacitance @ Vr, F:: 1803pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SMPC4.6U

Operating Temperature - Junction:: -55°C ~ 175°C

TSUP15M45SH FAQ

1.How can I place an order for TSUP15M45SH through Aetrix?

Please submit a Request for Quotation (RFQ) for TSUP15M45SH 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 TSUP15M45SH reliable?

The price and inventory of TSUP15M45SH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSUP15M45SH is usually 5 days.

3.What payment methods are accepted for TSUP15M45SH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSUP15M45SH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TSUP15M45SH?

TSUP15M45SH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TSUP15M45SH 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 TSUP15M45SH?

For technical support, including TSUP15M45SH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSUP15M45SH requirements.

6.How does Aetrix verify that TSUP15M45SH is sourced from the original manufacturer or authorized distributors?

All TSUP15M45SH 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 TSUP15M45SH meets industry standards.

7.What is the process for return or replacement of TSUP15M45SH?

All TSUP15M45SH units undergo pre-shipment inspection (PSI). If there is an issue with TSUP15M45SH, 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 TSUP15M45SH part is unused and in its original packaging.

Return procedure for TSUP15M45SH:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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