Diodes Incorporated DTH8R06FP

Overview

DTH8R06FP from Diodes Incorporated is an 8A hyper-fast epitaxial rectifier diode rated for 600V peak repetitive reverse voltage, with 2.9V forward voltage at 8A and 25ns reverse recovery time at 25°C. It serves as a primary output rectifier or freewheeling diode in high-frequency SMPS topologies operating in continuous conduction mode (CCM), especially in LED drivers and AC-DC adapters.

For engineers reviewing the DTH8R06FP datasheet, DTH8R06FP pinout, DTH8R06FP application, or DTH8R06FP equivalent, key selection criteria include its soft recovery behavior, low QRR (150nC), thermal resistance (RθJC = 5°C/W), and ITO220AC package suitability for heatsink-mounted power conversion stages.

Technical Context

This device employs an epitaxial silicon junction with glass-passivated die construction to achieve hyper-fast, soft reverse recovery-critical for minimizing EMI and switching losses in CCM PFC and LLC resonant converters. Its 25ns tRR and 5.5–7.2A IRM support high dIF/dt operation up to –200A/μs under 400V reverse bias.

The ITO220AC package provides low thermal resistance (5°C/W junction-to-case) and mechanical robustness for through-hole mounting on copper heatsinks. Polarity is unidirectional anode-cathode, with cathode marked by green band on top view; no integrated gate or control logic is present.

Key Specifications

Pinout & Package

Package: ITO220AC (Type WX-NC), 3-terminal through-hole plastic package with copper lead-frame, matte tin annealed finish, and UL 94V-0 molding compound. Weight: 1.522 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH8R06DJF and MUR860E, DTH8R06FP delivers the lowest QRR (150nC) and fastest tRR (25ns), making it optimal for high-frequency, low-EMI CCM PFC and LLC designs where recovery behavior critically affects MOSFET stress and filter sizing.

Availability

DTH8R06FP is available at Aetrix Electronics and suitable for LED lighting drivers, AC-DC adapters, and home appliance power supplies requiring stable component supply, RoHS 3 compliance, and verified thermal performance in ITO220AC packages.

Supply support for DTH8R06FP 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 North America.

The DTHxRxxFP series targets high-efficiency, high-reliability power conversion in consumer and industrial SMPS, emphasizing soft recovery, thermal robustness, and environmental compliance for cost-sensitive yet performance-critical applications.

FAQ

What is the maximum junction temperature and how does it affect thermal design?

The DTH8R06FP has a maximum junction temperature of +175°C. This allows operation in high-ambient environments like enclosed LED drivers or industrial power supplies. To maintain TJ ≤ 175°C, designers must limit power dissipation using RθJC = 5°C/W and ensure heatsink thermal resistance plus interface resistance stays below 10°C/W for 8A continuous conduction at 25°C ambient.

Is the ITO220AC package electrically isolated from the cathode?

No-the metal tab (Pin 3) is internally connected to the cathode (Pin 2). When mounted to a heatsink, this creates a direct electrical connection unless an insulating pad or washer is used. Designers must account for this in grounding schemes, especially in floating or high-side configurations where cathode potential differs from chassis ground.

How does the 25ns reverse recovery time compare to standard fast recovery diodes?

Standard fast recovery diodes typically exhibit tRR of 50–100ns. At 25ns, DTH8R06FP achieves hyper-fast recovery, reducing turn-off energy loss and voltage overshoot during commutation. This enables higher switching frequencies (>150kHz) and smaller EMI filters, particularly beneficial in LLC resonant converters and active PFC stages where diode recovery directly impacts MOSFET voltage stress.

Can DTH8R06FP be used in automotive applications?

DTH8R06FP is not AEC-Q101 qualified. While it operates from –55°C to +175°C and meets RoHS 3, Diodes Incorporated explicitly states that automotive-grade parts require separate qualification (AEC-Q101), PPAP capability, and IATF 16949 manufacturing. For automotive use, contact Diodes' automotive team for qualified equivalents such as the DTH8R06QP series.