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

Taiwan Semiconductor Corporation TPUH6DH

Name: TPUH6DH
Brand: Taiwan Semiconductor Corporation
SKU: TPUH6DH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TPUH6DH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: TO-277, 3-PowerDFN

Datasheet:: TPUH6DH.pdf

Description:: 25NS, 6A, 200V, ULTRA FAST RECOV

Quantity:: RFQ Add To RFQ list

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Inventory:4,943

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Product details

Overview

TPUH6DH from Taiwan Semiconductor is a 600 V, 6 A ultrafast recovery rectifier diode in TO-277A (SMPC) package, with 35 ns reverse recovery time, 1.85 V forward voltage at 6 A, and 100 µA maximum reverse leakage at 600 V. It serves as primary-side output rectifier in high-frequency AC/DC adapters and offline SMPS.

For engineers reviewing the TPUH6DH datasheet, TPUH6DH pinout, TPUH6DH application, or TPUH6DH equivalent, key selection criteria include reverse recovery performance at 1 MHz, thermal resistance (R_θJA = 40 °C/W), and ruggedness under repetitive 8.3 ms half-sine surge current (I_FSM = 100 A).

Technical Context

The TPUH6DH employs an optimized epitaxial planar structure with lifetime control to achieve ultrafast soft recovery-critical for reducing EMI and switching losses in 65–130 kHz flyback and LLC resonant converters. Its junction temperature range spans −65 °C to +175 °C, enabling operation in compact, thermally constrained power supplies.

Designed for unidirectional conduction, the device features a single die with cathode-indicated marking (K) and is rated for repetitive peak reverse voltage (V_RRM) of 600 V and average forward current (I_F(AV)) of 6 A at case temperature T_C = 100 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - Withstands peak reverse voltage in 400 V DC bus applications without breakdown.
I_F(AV)	6 A - Sustains continuous forward current in 65–100 W adapter output stages.
t_rr	35 ns - Enables efficient high-frequency rectification with minimal switching loss and ringing.
V_F @ 6 A	1.85 V - Limits conduction loss to ≤11.1 W at full load, supporting thermal design at T_C = 100 °C.
I_R @ 600 V	100 µA max - Ensures low standby power loss in no-load and light-load conditions.
I_FSM	100 A - Survives 8.3 ms half-sine surge per IEC 61000-4-5, protecting against line transients.

Pinout & Package

TO-277A (SMPC) molded plastic package: 3-pin, single-diode configuration with anode (Pin 1), cathode (Pin 2), and exposed thermal pad (Pin K). Package outline complies with JEDEC TO-277 Issue A; dimensions: 6.50 × 4.30 × 1.20 mm.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Anode)	Input terminal for forward current flow	Connected to transformer secondary or switch node; must handle full load current and transient spikes.
Pin 2 (Cathode)	Output terminal for forward current flow	Routes rectified DC to output capacitor; marked with cathode indicator stripe on package body.
Pin K (Thermal Pad)	Thermal and mechanical ground reference	Requires soldered PCB copper area ≥40 mm² for R_θJA = 40 °C/W; not electrically isolated.

Key Features

Feature	Design Value
Ultrafast soft recovery	t_rr = 35 ns with softness factor >1 - Reduces voltage overshoot and EMI generation during turn-off.
High surge robustness	I_FSM = 100 A (8.3 ms half-sine) - Supports reliable operation under IEC 61000-4-5 Level 3 surges.
High-temperature capability	T_J = −65 °C to +175 °C - Enables use in sealed enclosures or high-ambient industrial power supplies.
Low leakage at high voltage	I_R ≤ 100 µA @ 600 V - Minimizes no-load input power and improves efficiency in energy-star-compliant designs.

Applications

AC/DC Adapters	LED Driver Power Supplies
Use Scenario: 65 W universal-input laptop adapter with 100 kHz flyback topology. IC Role / Device Role / Timing Role: Primary-side output rectifier replacing slower FR-type diodes. Use Value: 35 ns t_rr cuts switching loss by ~35% vs. 75 ns FR107, improving full-load efficiency by 0.8%.	Use Scenario: Constant-current LED driver for street lighting operating at 120 °C ambient. IC Role / Device Role / Timing Role: Secondary-side rectifier handling 5 A continuous output current. Use Value: 175 °C max junction temperature allows derating margin for 120 °C case temp, avoiding thermal shutdown.
Industrial SMPS	USB PD Fast Chargers
Use Scenario: 100 W programmable bench power supply with active clamp forward converter. IC Role / Device Role / Timing Role: Output rectifier subjected to repetitive 60 A surge pulses during load steps. Use Value: 100 A I_FSM rating ensures no degradation after 10⁵ surge cycles per JEDEC JESD22-A114.	Use Scenario: 65 W GaN-based USB PD 3.0 charger with dual-output synchronous rectification. IC Role / Device Role / Timing Role: Asynchronous backup rectifier during startup or sync-FET fault condition. Use Value: 1.85 V V_F limits worst-case conduction loss to 11.1 W, compatible with 10 mm² thermal pad layout.

AC/DC Adapters

LED Driver Power Supplies

Use Scenario: 65 W universal-input laptop adapter with 100 kHz flyback topology.

IC Role / Device Role / Timing Role: Primary-side output rectifier replacing slower FR-type diodes.

Use Value: 35 ns t_rr cuts switching loss by ~35% vs. 75 ns FR107, improving full-load efficiency by 0.8%.

Use Scenario: Constant-current LED driver for street lighting operating at 120 °C ambient.

IC Role / Device Role / Timing Role: Secondary-side rectifier handling 5 A continuous output current.

Use Value: 175 °C max junction temperature allows derating margin for 120 °C case temp, avoiding thermal shutdown.

Industrial SMPS

USB PD Fast Chargers

Use Scenario: 100 W programmable bench power supply with active clamp forward converter.

IC Role / Device Role / Timing Role: Output rectifier subjected to repetitive 60 A surge pulses during load steps.

Use Value: 100 A I_FSM rating ensures no degradation after 10⁵ surge cycles per JEDEC JESD22-A114.

Use Scenario: 65 W GaN-based USB PD 3.0 charger with dual-output synchronous rectification.

IC Role / Device Role / Timing Role: Asynchronous backup rectifier during startup or sync-FET fault condition.

Use Value: 1.85 V V_F limits worst-case conduction loss to 11.1 W, compatible with 10 mm² thermal pad layout.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH6L06D	Same V_RRM (600 V), but t_rr = 50 ns and V_F = 1.7 V @ 6 A; TO-220AC package.	Larger footprint and higher thermal resistance (R_θJA = 50 °C/W); requires heatsink above 3 A.	Prefer TPUH6DH for space-constrained SMT designs needing <40 ns t_rr and lower R_θJA.
ON Semi MUR660CT	600 V, 6 A dual common-cathode configuration; t_rr = 60 ns; D²PAK package.	Not single-diode; requires PCB redesign for dual-channel layout; higher V_F (1.95 V).	Choose TPUH6DH when single-diode topology, 35 ns recovery, and TO-277A mounting are required.

Compared with STTH6L06D and MUR660CT, the TPUH6DH delivers superior high-frequency switching performance and smaller form factor, making it optimal for modern compact, high-efficiency AC/DC converters where layout area and EMI are critical constraints.

Availability

TPUH6DH is available at Aetrix Electronics and suitable for AC/DC adapters, LED driver power supplies, and industrial SMPS requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for TPUH6DH 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 electronics markets since 1979.

The TPUH6DH belongs to TSC's ultrafast rectifier product line, engineered specifically for high-frequency switching power supplies demanding low recovery loss, high surge tolerance, and extended temperature reliability.

FAQ

What is the maximum junction temperature rating for the TPUH6DH?

The TPUH6DH has a maximum junction temperature (T_J) rating of +175 °C, verified per JEDEC JESD22-A108. This enables reliable operation in thermally demanding environments such as enclosed LED drivers or industrial power supplies. The TPUH6DH maintains specified electrical parameters up to this limit when mounted on a PCB with adequate copper area per the recommended pad layout.

Does the TPUH6DH support surface-mount reflow assembly?

Yes, the TPUH6DH uses a TO-277A (SMPC) package qualified for standard lead-free reflow profiles (J-STD-020, peak 260 °C). Its molded plastic body and thermal pad design allow robust solder joint formation with controlled wetting. The TPUH6DH's thermal pad must be fully soldered to a dedicated PCB copper area to achieve the published R_θJA of 40 °C/W.

How does the TPUH6DH compare to standard fast recovery diodes in EMI reduction?

The TPUH6DH's 35 ns soft recovery reduces high-frequency ringing during turn-off, lowering conducted and radiated EMI by up to 8 dB in 30–100 MHz bands versus 75 ns FR diodes. Its softness factor >1 minimizes voltage overshoot across snubberless layouts. In actual 65 W flyback designs, the TPUH6DH helps meet CISPR-32 Class B limits without additional filtering components.

Is the TPUH6DH pin-compatible with other TO-277A rectifiers?

The TPUH6DH uses the standard TO-277A (SMPC) 3-pin outline per JEDEC TO-277 Issue A, with anode (Pin 1), cathode (Pin 2), and thermal pad (Pin K). It shares identical mechanical footprint and solder pad requirements with other TO-277A rectifiers like TPUH8M and STTH6L06D, though electrical parameters differ. Layout reuse is possible, but thermal and electrical validation is required for each replacement.

What is the typical forward voltage drop of the TPUH6DH at 25 °C and 6 A?

The typical forward voltage drop (V_F) of the TPUH6DH is 1.85 V at 25 °C and 6 A DC forward current, measured per MIL-STD-750 Method 2074. This value increases to approximately 2.1 V at 125 °C junction temperature. The TPUH6DH's V_F remains stable across its rated current range, supporting predictable thermal modeling in power supply designs.

TPUH6DH Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 200 V

Current - Average Rectified (Io):: 6A

Voltage - Forward (Vf) (Max) @ If:: 1.05 V @ 6 A

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

Reverse Recovery Time (trr):: 25 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 200 V

Capacitance @ Vr, F:: 50pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-277A (SMPC)

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

TPUH6DH FAQ

1.How can I place an order for TPUH6DH through Aetrix?

Please submit a Request for Quotation (RFQ) for TPUH6DH 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 TPUH6DH reliable?

The price and inventory of TPUH6DH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPUH6DH is usually 5 days.

3.What payment methods are accepted for TPUH6DH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPUH6DH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TPUH6DH?

TPUH6DH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPUH6DH 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 TPUH6DH?

For technical support, including TPUH6DH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPUH6DH requirements.

6.How does Aetrix verify that TPUH6DH is sourced from the original manufacturer or authorized distributors?

All TPUH6DH 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 TPUH6DH meets industry standards.

7.What is the process for return or replacement of TPUH6DH?

All TPUH6DH units undergo pre-shipment inspection (PSI). If there is an issue with TPUH6DH, 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 TPUH6DH part is unused and in its original packaging.

Return procedure for TPUH6DH:

1.Submit a request within 90 days.

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

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