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Home > Products > Discrete Semiconductor Products > Diodes > Bridge Rectifiers

Taiwan Semiconductor Corporation TS4K80-A

Name: TS4K80-A
Brand: Taiwan Semiconductor Corporation
SKU: TS4K80-A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS4K80-A

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Bridge Rectifiers

Package:: 4-SIP, TS4K

Datasheet:: TS4K80-A.pdf

Description:: BRIDGE RECT 1PHASE 800V 4A TS4K

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Product details

Overview

TS4K80-A from Taiwan Semiconductor is a 4A, 800V standard quad bridge rectifier with glass-passivated junctions, UL Recognized (E-326243), RoHS- and halogen-free compliant, designed for high-reliability AC/DC conversion in compact PCB layouts.

For engineers reviewing the TS4K80-A datasheet, TS4K80-A pinout, TS4K80-A application, or TS4K80-A equivalent, key selection criteria include its 800V V_RRM, 120A I_FSM, 7°C/W R_θJL, 1.0V max V_F @ 2A/25°C, and TS4K package thermal performance under SMPS and lighting load conditions.

Technical Context

The TS4K80-A integrates four silicon diodes in a single-phase bridge configuration with common-cathode and common-anode terminals, enabling full-wave rectification without external interconnects. Its glass-passivated junction ensures stable reverse leakage (<10 µA @ 25°C) and robust surge handling (120A I_FSM, 60 A²s I²t).

Thermally optimized for conduction-cooled mounting, it delivers 7°C/W junction-to-lead resistance when soldered to PCB copper and achieves 150°C maximum junction temperature-critical for sustained operation in enclosed adapters and LED drivers.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	800 V - Maximum repetitive reverse voltage per diode; defines safe AC input range up to 560 V_RMS.
I_F	4 A - Average forward current rating; supports continuous DC output up to 4A after rectification.
I_FSM	120 A - Non-repetitive surge current (8.3 ms sine); withstands inrush in SMPS startup and lightning-induced transients.
V_F (max)	1.0 V @ 2A, 25°C - Forward voltage drop per diode; determines conduction loss and thermal rise at rated load.
R_θJL	7 °C/W - Junction-to-lead thermal resistance; enables direct PCB heat sinking without external heatsink in low-power adapters.
I_R (max)	500 µA @ 125°C - Reverse leakage per diode; impacts standby power and reliability in high-temperature lighting environments.
C_J	42 pF @ 1 MHz, 4V - Junction capacitance per diode; influences EMI behavior and switching noise in high-frequency SMPS designs.

Pinout & Package

Package: TS4K - molded plastic case meeting UL 94V-0, matte tin-plated leads, 4.10g weight, polarity marked on top surface.

Pin/Terminal	Circuit Role	Design Meaning
AC1	Input anode	One AC input terminal of bridge; connects to live/phase side of transformer secondary.
AC2	Input cathode	Second AC input terminal; completes full-wave input path with AC1.
+ (Anode Common)	DC positive output	Common anode node of two series diodes; delivers rectified positive DC output.
– (Cathode Common)	DC negative output	Common cathode node of two series diodes; serves as DC return/reference ground.

Key Features

Feature	Design Value
Glass-passivated chip junction	Enables stable reverse characteristics and long-term reliability under humidity and thermal cycling.
UL Recognized File # E-326243	Validates safety compliance for end-equipment certification in North America without additional testing.
120A surge rating (8.3 ms)	Supports repeated cold-start surges in universal-input adapters without degradation or failure.
RoHS & halogen-free (IEC 61249-2-21)	Meets global environmental regulations and eliminates corrosive halogen emissions during PCB reflow or fire events.
7°C/W junction-to-lead thermal resistance	Allows efficient heat transfer to PCB copper pour, reducing need for auxiliary heatsinking in space-constrained designs.

Applications

Switching Mode Power Supply (SMPS)	LED Lighting Driver
Use Scenario: Primary-side rectification in offline flyback converters delivering 12–24V/3A outputs. IC Role / Device Role / Timing Role: Quad bridge rectifier converting 85–265V AC mains to unregulated DC bus. Use Value: 800V V_RRM provides 2× safety margin over 265V AC peak (375V), ensuring robustness against line surges.	Use Scenario: AC input stage in non-isolated buck-PFC LED drivers for commercial troffers. IC Role / Device Role / Timing Role: Full-wave rectifier feeding high-frequency switching stage with minimal conduction loss. Use Value: 1.0V V_F max reduces power dissipation at 4A, limiting junction temperature rise to <100°C under ambient 60°C.
Wall Adapter	Industrial Control Power Module
Use Scenario: Compact 12V/2A universal-input wall charger with no heatsink. IC Role / Device Role / Timing Role: Input rectifier operating continuously at 4A average current in sealed enclosure. Use Value: UL recognition and 150°C T_JMAX allow reliable operation at 70°C ambient without derating.	Use Scenario: Auxiliary power supply in PLC I/O modules requiring high MTBF and wide temperature operation. IC Role / Device Role / Timing Role: Mains-fed bridge supplying isolated DC-DC converter input rail. Use Value: 500 µA I_R @ 125°C minimizes standby leakage, preserving efficiency in always-on control logic.

Switching Mode Power Supply (SMPS)

LED Lighting Driver

Use Scenario: Primary-side rectification in offline flyback converters delivering 12–24V/3A outputs.

IC Role / Device Role / Timing Role: Quad bridge rectifier converting 85–265V AC mains to unregulated DC bus.

Use Value: 800V V_RRM provides 2× safety margin over 265V AC peak (375V), ensuring robustness against line surges.

Use Scenario: AC input stage in non-isolated buck-PFC LED drivers for commercial troffers.

IC Role / Device Role / Timing Role: Full-wave rectifier feeding high-frequency switching stage with minimal conduction loss.

Use Value: 1.0V V_F max reduces power dissipation at 4A, limiting junction temperature rise to <100°C under ambient 60°C.

Wall Adapter

Industrial Control Power Module

Use Scenario: Compact 12V/2A universal-input wall charger with no heatsink.

IC Role / Device Role / Timing Role: Input rectifier operating continuously at 4A average current in sealed enclosure.

Use Value: UL recognition and 150°C T_JMAX allow reliable operation at 70°C ambient without derating.

Use Scenario: Auxiliary power supply in PLC I/O modules requiring high MTBF and wide temperature operation.

IC Role / Device Role / Timing Role: Mains-fed bridge supplying isolated DC-DC converter input rail.

Use Value: 500 µA I_R @ 125°C minimizes standby leakage, preserving efficiency in always-on control logic.

Equivalent & Alternatives

The following parts are listed as comparable options for similar bridge rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay VS-4KB80	Same 4A/800V rating; R_θJA = 20°C/W (vs. TS4K80-A's 18°C/W); VF = 1.1V max @ 2A.	Slightly higher conduction loss; identical mounting footprint but different lead form (gull-wing vs. straight).	Select VS-4KB80 only if existing layout uses gull-wing leads or requires Vishay qualification.
ON Semiconductor GBPC408	4A/800V; I_FSM = 100A (vs. 120A); R_θJL = 8°C/W; UL file E151277.	Lower surge capability limits use in high-inrush adapter designs; same TS4K outline but different marking orientation.	Choose GBPC408 where UL E151277 is mandated or when lower-cost sourcing is prioritized over surge margin.

Compared with VS-4KB80 and GBPC408, the TS4K80-A offers superior surge robustness (120A), tighter thermal resistance (7°C/W), and lower forward voltage-making it optimal for thermally constrained, high-reliability SMPS and lighting applications where long-term stability is critical.

Availability

TS4K80-A is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and wall adapters requiring stable component supply, consistent parametric performance, and full regulatory compliance (UL, RoHS, halogen-free).

Supply support for TS4K80-A 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, automotive, and industrial markets since 1979.

The TS4K series was developed specifically for high-efficiency, high-reliability AC/DC front-end rectification in compact, thermally demanding applications-including universal-input adapters, LED drivers, and industrial power modules.

FAQ

What is the maximum junction temperature rating for the TS4K80-A?

The TS4K80-A has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table. This allows continuous operation in high-ambient environments such as enclosed LED drivers or industrial control enclosures. The TS4K80-A maintains specified electrical parameters up to this limit when thermal design respects R_θJL = 7°C/W and proper PCB copper area is used for heat spreading.

Does the TS4K80-A meet UL safety standards?

Yes, the TS4K80-A is UL Recognized under File # E-326243, confirming compliance with UL 60747-4 for semiconductor devices. This certification applies directly to the TS4K80-A part number and covers construction, flammability (UL 94V-0), and electrical safety-enabling faster end-product certification for power supplies and lighting equipment sold in North America.

What is the forward voltage drop of the TS4K80-A at full rated current?

The TS4K80-A specifies a maximum forward voltage (V_F) of 1.0 V per diode at I_F = 2 A and T_J = 25°C. At full 4A average current, conduction loss is dominated by two series diodes conducting simultaneously, resulting in ~2.0 V total drop under typical thermal conditions-critical for calculating efficiency and thermal design in SMPS applications using the TS4K80-A.

Can the TS4K80-A replace the TS4K60-A or TS4K40-A in an existing design?

Yes, the TS4K80-A is a direct drop-in replacement for TS4K60-A and TS4K40-A: all share identical TS4K package, pinout, thermal profile, and mechanical dimensions. The only difference is V_RRM (800V vs. 600V/400V), so upgrading to TS4K80-A improves surge margin and reliability in universal-input or high-line applications without layout or thermal changes.

Is the TS4K80-A halogen-free and RoHS compliant?

Yes, the TS4K80-A is both RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants or chlorine-based additives, and lead content is below 1000 ppm. These attributes are confirmed in TSC's official compliance documentation and apply specifically to the TS4K80-A ordering code.

TS4K80-A Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: 4-SIP, TS4K

Packaging:: Tube

Product Status:: Discontinued at Digi-Key

Diode Type:: Single Phase

Technology:: Standard

Voltage - Peak Reverse (Max):: 800 V

Current - Average Rectified (Io):: 4 A

Voltage - Forward (Vf) (Max) @ If:: 1 V @ 2 A

Current - Reverse Leakage @ Vr:: 10 µA @ 800 V

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TS4K

TS4K80-A FAQ

1.How can I place an order for TS4K80-A through Aetrix?

Please submit a Request for Quotation (RFQ) for TS4K80-A 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 TS4K80-A reliable?

The price and inventory of TS4K80-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS4K80-A is usually 5 days.

3.What payment methods are accepted for TS4K80-A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS4K80-A transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS4K80-A?

TS4K80-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS4K80-A 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 TS4K80-A?

For technical support, including TS4K80-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS4K80-A requirements.

6.How does Aetrix verify that TS4K80-A is sourced from the original manufacturer or authorized distributors?

All TS4K80-A 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 TS4K80-A meets industry standards.

7.What is the process for return or replacement of TS4K80-A?

All TS4K80-A units undergo pre-shipment inspection (PSI). If there is an issue with TS4K80-A, 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 TS4K80-A part is unused and in its original packaging.

Return procedure for TS4K80-A:

1.Submit a request within 90 days.

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

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