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

Diodes Incorporated DTH8R06D

Name: DTH8R06D
Brand: Diodes Incorporated
SKU: DTH8R06D
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DTH8R06D

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

Package:: TO-220-2

Datasheet:: DTH8R06D.pdf

Description:: DIODE GEN PURP 600V 8A TO220AC

Quantity:: RFQ Add To RFQ list

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Inventory:40

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Product details

Overview

DTH8R06D from Diodes Incorporated is an 8A, 600V hyper-fast epitaxial rectifier diode in TO220AC package, optimized for high-efficiency SMPS output rectification and continuous conduction mode (CCM) PFC stages. It delivers 2.9V max forward voltage at 8A/25°C, 25ns max reverse recovery time, and 30μA max reverse leakage at 600V/25°C, enabling compact, thermally efficient power supplies for LED drivers and battery chargers.

For engineers reviewing the DTH8R06D datasheet, DTH8R06D pinout, DTH8R06D application, or DTH8R06D equivalent, key selection criteria include its soft hyper-fast switching behavior, 2°C/W junction-to-case thermal resistance, cathode-connected tab configuration, and suitability for 600V-class industrial and consumer offline power conversion where low QRR (150nC) and controlled IRM (7.2A) are critical.

Technical Context

This hyper-fast rectifier uses epitaxial silicon construction with glass passivation to achieve tightly controlled reverse recovery characteristics-tRR ≤ 25ns at IF = 0.5A, IRR = 0.25A-and soft recovery waveform essential for reducing EMI in high-frequency SMPS. Its 21.7mJ non-repetitive avalanche energy rating supports robust transient handling during surge events.

The device operates across –55°C to +175°C junction temperature range and features a cathode-connected metal tab for direct heatsink mounting. Thermal design is enabled by RθJC = 2°C/W and RθJL = 2°C/W, allowing effective power dissipation up to 8A average current under forced-air or adequately sized heatsink conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - Withstands peak reverse voltage in 400V AC mains-derived applications with safety margin.
I_O	8 A - Continuous DC output current capability at T_A = 25°C with appropriate heatsinking.
V_F (max)	2.9 V @ 8A, 25°C - Directly impacts conduction loss and thermal load in high-current rectifier paths.
t_RR (max)	25 ns @ IF = 0.5A - Enables operation in >100 kHz SMPS without excessive switching loss or ringing.
I_R (max)	30 μA @ 600V, 25°C - Ensures minimal standby power loss in offline adapter primary-side snubbers or auxiliary supplies.
Q_RR	150 nC @ 125°C - Low stored charge reduces turn-off losses and EMI generation in hard-switched topologies.
R_θJC	2 °C/W - Allows precise junction temperature estimation when mounted to heatsink via insulated or direct interface.

Pinout & Package

Package: TO220AC (Type WX), molded plastic with UL 94V-0 rating; matte tin-plated leads; cathode-connected metal tab (Pin 2).

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Input current entry point	Connected to transformer secondary or switch node; requires PCB trace width sufficient for 8A RMS.
Cathode (Tab / Lead 2)	Output current exit & thermal path	Electrically tied to cathode; must be isolated or grounded per layout; primary heatsink interface.
No third lead	N/A	TO220AC is 2-terminal device; no gate, control, or sense pin.

Key Features

Feature	Design Value
Soft, hyper-fast switching	Controlled dI/dt during turn-off minimizes voltage overshoot and EMI in high-frequency converters.
Glass passivated die	Enhances long-term reliability under humidity and thermal cycling stress in consumer and industrial environments.
CCM PFC optimization	Low QRR and soft recovery enable stable operation in continuous conduction mode boost PFC stages.
RoHS-3 & Halogen-free	Complies with EU Directive 2015/863/EU; <900ppm Br, <900ppm Cl, <1000ppm Sb for green manufacturing.

Applications

LED Driver Power Supply

Battery Charger Output Stage

Use Scenario: Secondary-side rectification in 60–100W constant-current LED drivers operating from universal AC input.

IC Role / Device Role / Timing Role: High-voltage output rectifier replacing slower FRDs to reduce conduction and switching losses.

Use Value: Enables >90% efficiency at full load with reduced heatsink size due to 2.9V V_F and 2°C/W R_θJC.

Use Scenario: DC output rectification in multi-port USB PD chargers with 600V-rated flyback or LLC topologies.

IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectified or quasi-resonant flyback designs.

Use Value: 25ns t_RR prevents cross-conduction loss and improves light-load regulation stability.

Industrial SMPS Output

Home Appliance PFC Stage

Use Scenario: 24V/5A output rectification in DIN-rail mounted 200W industrial power supplies.

IC Role / Device Role / Timing Role: Main output rectifier handling continuous 8A DC current with thermal margin.

Use Value: Junction-to-case thermal resistance of 2°C/W allows reliable operation at 75°C ambient with standard extruded heatsink.

Use Scenario: Boost diode in active PFC front-end of washing machines and air conditioners.

IC Role / Device Role / Timing Role: CCM-mode boost rectifier requiring low Q_RR and soft recovery to limit EMI.

Use Value: 150nC Q_RR and soft switching reduce filter component count and meet CISPR-11 Class B emissions limits.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage hyper-fast rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH8R06DJ	Same 600V/8A rating; tRR = 35ns (max); VF = 2.7V (max) at 8A/25°C; TO220AC package.	Slightly slower recovery increases switching loss in >150kHz designs; higher IR at elevated temperature.	Acceptable where EMI margin exists and cost sensitivity outweighs 10ns tRR advantage.
IXYS MUR860E	600V/8A ultrafast rectifier; tRR = 50ns (max); VF = 2.8V (max); TO220AC; higher QRR (~220nC).	Less suitable for CCM PFC due to harder recovery and higher stored charge.	Preferred only in lower-frequency (<80kHz) or less noise-sensitive applications with legacy design reuse.

Compared with STTH8R06DJ and IXYS MUR860E, DTH8R06D offers the lowest tRR (25ns) and QRR (150nC), making it optimal for high-frequency, low-EMI CCM PFC and compact SMPS where thermal and electrical efficiency are prioritized over legacy footprint compatibility.

Availability

DTH8R06D is available at Aetrix Electronics and suitable for LED lighting drivers, battery charger output stages, and industrial SMPS requiring stable component supply with consistent TO220AC mechanical form factor and RoHS-3 compliance.

Supply support for DTH8R06D 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.

DTH8R06D belongs to Diodes' Hyper-Fast Rectifier product line, engineered specifically for high-efficiency, high-frequency AC/DC and DC/DC power conversion in consumer, industrial, and computing applications demanding low QRR and soft recovery.

FAQ

Is the DTH8R06D cathode-connected tab electrically isolated from the PCB mount surface?

No-the metal tab is internally bonded to the cathode terminal (Pin 2) and is not insulated. When mounting to a heatsink, electrical isolation (e.g., mica washer or silicone pad) is required unless the heatsink is referenced to cathode potential. The device's marking diagram confirms cathode connection to the tab.

What is the maximum allowable junction temperature during surge conditions?

The DTH8R06D supports a continuous operating junction temperature range of –55°C to +175°C. Under non-repetitive surge conditions (e.g., IFSM = 160A for 1ms), peak junction temperature must remain below +175°C, which requires limiting surge duty cycle and ensuring adequate thermal mass or heatsinking per JEDEC JESD24-10 guidelines.

Does DTH8R06D meet AEC-Q101 for automotive use?

No-DTH8R06D is not AEC-Q101 qualified. Diodes states that automotive-grade versions require specific change control, PPAP capability, and IATF 16949 manufacturing; this part is intended for industrial and consumer applications. For automotive designs, consult Diodes' AEC-Q101-qualified equivalents such as DTH8R06DHQ.

How does the 2.9V V_F specification scale at elevated temperature?

V_F decreases with rising junction temperature: typical V_F is 1.8V at 8A/125°C (per datasheet Table "Electrical Characteristics"). This negative temperature coefficient helps balance thermal runaway risk in parallel configurations but requires derating conduction loss calculations using actual TJ rather than ambient.

DTH8R06D Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-220-2

Packaging:: Tube

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 600 V

Current - Average Rectified (Io):: 8A

Voltage - Forward (Vf) (Max) @ If:: 2.9 V @ 8 A

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

Reverse Recovery Time (trr):: 45 ns

Current - Reverse Leakage @ Vr:: 30 µA @ 600 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO220AC (Type WX)

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

DTH8R06D FAQ

1.How can I place an order for DTH8R06D through Aetrix?

Please submit a Request for Quotation (RFQ) for DTH8R06D 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 DTH8R06D reliable?

The price and inventory of DTH8R06D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DTH8R06D is usually 5 days.

3.What payment methods are accepted for DTH8R06D?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DTH8R06D transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DTH8R06D?

DTH8R06D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DTH8R06D 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 DTH8R06D?

For technical support, including DTH8R06D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DTH8R06D requirements.

6.How does Aetrix verify that DTH8R06D is sourced from the original manufacturer or authorized distributors?

All DTH8R06D 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 DTH8R06D meets industry standards.

7.What is the process for return or replacement of DTH8R06D?

All DTH8R06D units undergo pre-shipment inspection (PSI). If there is an issue with DTH8R06D, 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 DTH8R06D part is unused and in its original packaging.

Return procedure for DTH8R06D:

1.Submit a request within 90 days.

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

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