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

Taiwan Semiconductor Corporation TSSW3U45HRVG

Name: TSSW3U45HRVG
Brand: Taiwan Semiconductor Corporation
SKU: TSSW3U45HRVG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TSSW3U45HRVG

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: SOD-123W

Datasheet:: TSSW3U45HRVG.pdf

Description:: DIODE SCHOTTKY 45V 3A SOD123W

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Product details

Overview

TSSW3U45HRVG from Taiwan Semiconductor is a 3A, 45V trench Schottky surface-mount rectifier in SOD-123W package, featuring 0.40 V forward voltage at 3A/25°C, 50A peak surge capability, and 150°C maximum junction temperature-used in high-efficiency DC-DC converters and AC-DC adapters.

For engineers reviewing the TSSW3U45HRVG datasheet, TSSW3U45HRVG pinout, TSSW3U45HRVG application, or TSSW3U45HRVG equivalent, key selection criteria include low VF stability across temperature, J-STD-020 Level 1 moisture sensitivity, UL 94V-0 molding compound, and verified thermal resistance (R_θJL = 20°C/W).

Technical Context

This Schottky rectifier uses patented trench architecture to achieve stable low forward voltage across operating temperatures (VF = 0.34 V typ. at 3A/125°C), enabling reduced conduction loss in high-frequency switching topologies. Its single-die configuration and cathode-band polarity marking simplify PCB layout and assembly verification.

The device meets JESD201 Class 2 whisker resistance and matte tin-plated leads compliant with J-STD-002 solderability-critical for lead-free reflow processes in industrial power supplies requiring long-term reliability under thermal cycling.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	45 V - Maximum non-repetitive reverse blocking voltage; defines safe operating range in 36–42 V nominal input SMPS stages.
I_F	3 A continuous - Rated average forward current at T_L = 75°C; supports compact heatsinking in space-constrained adapters.
I_FSM	50 A - Peak surge rating for 8.3 ms half-sine; withstands inrush in offline flyback and LLC resonant converters.
V_F @ 3A, 25°C	0.40 V (typ), 0.47 V (max) - Directly reduces conduction loss vs. planar Schottkys; enables >92% efficiency at 12 V output.
R_θJL	20 °C/W - Low junction-to-lead thermal resistance allows direct thermal coupling to copper pour without thermal vias in cost-sensitive designs.
T_J max	150 °C - Enables operation in sealed enclosures or high ambient environments (e.g., PoE-powered devices, LED drivers).

Pinout & Package

Package: SOD-123W - Surface-mount plastic case with gull-wing leads, UL 94V-0 rated molding compound, cathode band polarity indicator, and 0.016 g mass.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential node (e.g., switch node in synchronous rectification); requires minimum 0.3 mm pad extension for thermal relief.
Cathode	Forward current exit / reverse blocking terminal	Marked by band; ties to output rail or ground return path; must maintain ≥0.2 mm clearance from adjacent high-dV/dt traces.

Key Features

Feature	Design Value
Trench Schottky technology	Enables 0.34 V VF at 3A/125°C-reducing thermal runaway risk in high-temp DC-DC modules.
J-STD-020 Level 1 MSL	Zero bake requirement before SMT assembly; eliminates moisture-related popcorning in standard reflow profiles.
UL 94V-0 molding compound	Meets flame-retardancy requirements for Class II insulated AC-DC adapters without external potting.
JESD201 Class 2 whisker resistance	Prevents tin whisker growth under 1000 hrs at 55°C/85% RH-ensuring long-term reliability in telecom infrastructure.

Applications

Server VRM Output Rectification	USB-C PD Adapter Secondary Side
Use Scenario: High-current, high-frequency synchronous rectification in 48 V → 12 V server VRMs operating at 500 kHz–1 MHz. IC Role / Device Role / Timing Role: Low-VF Schottky rectifier replacing MOSFETs in secondary-side synchronous rectification to reduce gate drive complexity. Use Value: 0.40 V VF at 3A cuts conduction loss by ~35% vs. comparable planar Schottkys, lowering die temperature by 12°C at full load.	Use Scenario: Secondary-side rectification in compact 65 W USB-C PD adapters with 5–20 V output range. IC Role / Device Role / Timing Role: Uncontrolled rectifier in flyback topology; leverages low VF and fast recovery to minimize output ripple and EMI. Use Value: R_θJL = 20°C/W enables direct thermal coupling to PCB copper, eliminating need for thermal pads in <10 mm² footprint designs.
Industrial IoT Power Module	Automotive Body Control Module (BCM)
Use Scenario: Input rectification for isolated 5 V/3.3 V DC-DC converters powering sensors and microcontrollers in harsh industrial environments. IC Role / Device Role / Timing Role: Primary rectifier in wide-input buck-boost front-end; handles 24 V nominal input with 40 V transients. Use Value: 150°C T_J max and stable VF up to 125°C ensure uninterrupted operation in unventilated enclosures at 85°C ambient.	Use Scenario: Reverse polarity protection and supply conditioning in 12 V automotive BCMs exposed to load dump pulses. IC Role / Device Role / Timing Role: Low-loss freewheeling diode in LDO pre-regulator stage; clamps inductive kickback during solenoid switching. Use Value: 50 A I_FSM withstands 100 ms load dump events per ISO 7637-2 Pulse 5a, avoiding fuse blowout or regulator failure.

Server VRM Output Rectification

USB-C PD Adapter Secondary Side

Use Scenario: High-current, high-frequency synchronous rectification in 48 V → 12 V server VRMs operating at 500 kHz–1 MHz.

IC Role / Device Role / Timing Role: Low-VF Schottky rectifier replacing MOSFETs in secondary-side synchronous rectification to reduce gate drive complexity.

Use Value: 0.40 V VF at 3A cuts conduction loss by ~35% vs. comparable planar Schottkys, lowering die temperature by 12°C at full load.

Use Scenario: Secondary-side rectification in compact 65 W USB-C PD adapters with 5–20 V output range.

IC Role / Device Role / Timing Role: Uncontrolled rectifier in flyback topology; leverages low VF and fast recovery to minimize output ripple and EMI.

Use Value: R_θJL = 20°C/W enables direct thermal coupling to PCB copper, eliminating need for thermal pads in <10 mm² footprint designs.

Industrial IoT Power Module

Automotive Body Control Module (BCM)

Use Scenario: Input rectification for isolated 5 V/3.3 V DC-DC converters powering sensors and microcontrollers in harsh industrial environments.

IC Role / Device Role / Timing Role: Primary rectifier in wide-input buck-boost front-end; handles 24 V nominal input with 40 V transients.

Use Value: 150°C T_J max and stable VF up to 125°C ensure uninterrupted operation in unventilated enclosures at 85°C ambient.

Use Scenario: Reverse polarity protection and supply conditioning in 12 V automotive BCMs exposed to load dump pulses.

IC Role / Device Role / Timing Role: Low-loss freewheeling diode in LDO pre-regulator stage; clamps inductive kickback during solenoid switching.

Use Value: 50 A I_FSM withstands 100 ms load dump events per ISO 7637-2 Pulse 5a, avoiding fuse blowout or regulator failure.

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-3EYH04-M3/54	45 V V_RRM, 3 A I_F, VF = 0.45 V @ 3A/25°C, SOD-123 package (not SOD-123W)	Slightly higher VF increases conduction loss; smaller SOD-123 body reduces thermal mass and derating margin.	Acceptable where board space is tighter but thermal headroom exists; verify R_θJA impact on system-level temp rise.
ON Semiconductor SB340	40 V V_RRM, 3 A I_F, VF = 0.52 V @ 3A/25°C, DO-214AA package	Lower voltage rating limits use to ≤36 V systems; larger DO-214AA footprint consumes ~3× PCB area.	Only suitable for legacy 24 V systems with ample layout margin; not recommended for new 48 V architectures.

Compared with VS-3EYH04-M3/54 and SB340, the TSSW3U45HRVG delivers superior thermal performance (R_θJL = 20°C/W vs. ≥35°C/W), tighter VF control at elevated temperature, and SOD-123W's enhanced creepage for reinforced insulation in safety-critical adapters.

Availability

TSSW3U45HRVG is available at Aetrix Electronics and suitable for switching mode power supplies, USB-C PD adapters, and industrial DC-DC converters requiring stable component supply, consistent parametric performance, and RoHS/halogen-free compliance.

Supply support for TSSW3U45HRVG 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, serving global power management and industrial markets since 1979.

The TSSW series targets high-efficiency, surface-mount Schottky rectification in space- and thermally constrained AC-DC and DC-DC applications-emphasizing low VF, robust surge handling, and process-controlled reliability.

FAQ

What is the maximum junction temperature rating for TSSW3U45HRVG?

The TSSW3U45HRVG has a maximum junction temperature (T_J) of +150°C, validated per absolute maximum ratings in the official Taiwan Semiconductor datasheet Version B2103. This rating enables reliable operation in sealed or high-ambient environments such as enclosed LED drivers and industrial power modules. The TSSW3U45HRVG maintains stable electrical parameters-including forward voltage and leakage current-up to this limit when proper PCB thermal design is implemented.

Is TSSW3U45HRVG compatible with lead-free reflow soldering processes?

Yes, the TSSW3U45HRVG features matte tin-plated leads qualified to J-STD-002 for solderability and meets JESD201 Class 2 whisker resistance requirements. Its SOD-123W package is rated for standard lead-free reflow profiles (peak 260°C, 10 sec max), and its J-STD-020 Level 1 moisture sensitivity eliminates pre-bake requirements-making the TSSW3U45HRVG suitable for high-volume automated assembly without process modification.

What does the "HRVG" suffix indicate in TSSW3U45HRVG?

The "HRVG" suffix in TSSW3U45HRVG denotes Taiwan Semiconductor's standardized tape-and-reel packaging: "H" = halogen-free, "R" = RoHS-compliant, "V" = SOD-123W package, and "G" = green (lead-free) finish. This matches the ordering code structure defined in the datasheet's Ordering Information table and confirms full compliance with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU.

How does the forward voltage of TSSW3U45HRVG vary with temperature?

The TSSW3U45HRVG exhibits negative temperature coefficient behavior: VF decreases as junction temperature rises-0.24 V typ. at 1A/125°C and 0.34 V typ. at 3A/125°C, versus 0.33 V and 0.40 V at 25°C. This characteristic improves thermal stability in high-power-density designs, reducing risk of thermal runaway compared to silicon diodes or higher-VF Schottkys.

Can TSSW3U45HRVG be used as a direct replacement for TSSW3U60HRVG in a 45 V design?

No-TSSW3U45HRVG and TSSW3U60HRVG are distinct voltage-grade variants: TSSW3U45HRVG is rated for 45 V V_RRM, while TSSW3U60HRVG is rated for 60 V. Substituting TSSW3U45HRVG in a circuit designed for 60 V reverse stress risks premature breakdown. However, in a properly designed 45 V system (e.g., 36 V nominal input with ≤10% overvoltage), the TSSW3U45HRVG offers lower VF and identical thermal and packaging specs versus the 60 V variant.

TSSW3U45HRVG Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: SOD-123W

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Technology:: Schottky

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

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 470 mV @ 3 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 1 mA @ 45 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-123W

Operating Temperature - Junction:: -55°C ~ 150°C

TSSW3U45HRVG FAQ

1.How can I place an order for TSSW3U45HRVG through Aetrix?

Please submit a Request for Quotation (RFQ) for TSSW3U45HRVG 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 TSSW3U45HRVG reliable?

The price and inventory of TSSW3U45HRVG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSSW3U45HRVG is usually 5 days.

3.What payment methods are accepted for TSSW3U45HRVG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSSW3U45HRVG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TSSW3U45HRVG?

TSSW3U45HRVG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TSSW3U45HRVG 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 TSSW3U45HRVG?

For technical support, including TSSW3U45HRVG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSSW3U45HRVG requirements.

6.How does Aetrix verify that TSSW3U45HRVG is sourced from the original manufacturer or authorized distributors?

All TSSW3U45HRVG 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 TSSW3U45HRVG meets industry standards.

7.What is the process for return or replacement of TSSW3U45HRVG?

All TSSW3U45HRVG units undergo pre-shipment inspection (PSI). If there is an issue with TSSW3U45HRVG, 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 TSSW3U45HRVG part is unused and in its original packaging.

Return procedure for TSSW3U45HRVG:

1.Submit a request within 90 days.

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

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