Diodes Incorporated DTH8S06FP

Overview

DTH8S06FP from Diodes Incorporated is an 8A, 600V hyper-fast epitaxial rectifier in ITO-220AC package, featuring 21ns reverse recovery time, 3.4V forward voltage at 8A, and 15µA reverse leakage at 600V/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 DTH8S06FP datasheet, DTH8S06FP pinout, DTH8S06FP application, or DTH8S06FP equivalent, key selection criteria include soft-switching behavior for EMI reduction, thermal resistance of 2.7°C/W (junction-to-case), suitability for CCM PFC stages, and RoHS-compliant green packaging with matte tin annealed terminals.

Technical Context

This device employs a hyper-fast epitaxial silicon structure optimized for low Q_RR (60nC typical at 25°C) and controlled dI/dt-induced reverse recovery current (1.8A peak at 25°C). Its soft recovery waveform minimizes voltage overshoot and ringing during turn-off in hard-switched converters.

The ITO-220AC package provides direct metal tab thermal path to heatsink, enabling high-power dissipation with R_θJC = 2.7°C/W when mounted on a 200×200×5mm Al plate. Polarity is unidirectional anode-cathode, with cathode marked by green band on top view.

Key Specifications

Pinout & Package

Package: ITO-220AC (Type WX-NC), molded plastic with UL 94V-0 rating, matte tin annealed copper lead-frame, 1.522g weight. Cathode identified by green band on top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH8R06DJF and IXYS MUR860E, DTH8S06FP delivers the fastest recovery (21ns), lowest Q_RR (60nC), and full RoHS 3/green compliance-making it optimal for high-frequency, low-EMI, and environmentally regulated applications like LED drivers and USB-C adapters.

Availability

DTH8S06FP is available at Aetrix Electronics and suitable for LED lighting drivers, USB-C power adapters, and industrial SMPS requiring stable component supply, long-lifecycle availability, and RoHS 3-compliant packaging.

Supply support for DTH8S06FP 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.

DTH8S06FP belongs to Diodes' Hyper-Fast Rectifier product line, engineered specifically for high-efficiency, high-frequency switching power supplies operating in continuous conduction mode, with emphasis on low Q_RR, soft recovery, and thermal robustness.

FAQ

What is the maximum junction temperature and thermal resistance specification for DTH8S06FP?

The DTH8S06FP has an operating junction temperature range of –55°C to +175°C. Its typical thermal resistance from junction to case (R_θJC) is 2.7°C/W when mounted on a 200×200×5mm aluminum heatsink, and rises to 11°C/W without heatsink. This defines minimum heatsink sizing for 8A continuous operation.

Is DTH8S06FP suitable for use in automotive applications?

DTH8S06FP is not AEC-Q101 qualified and is not intended for automotive safety-critical systems. While its temperature range (–55°C to +175°C) exceeds automotive under-hood requirements, Diodes explicitly states that automotive-grade versions require separate qualification, PPAP capability, and IATF 16949 manufacturing-none of which apply to this part number.

How does the "green" designation impact PCB assembly and reliability?

The "green" designation confirms halogen- and antimony-free materials (<900ppm Br/Cl, <1000ppm Sb) and RoHS 3 compliance. This eliminates corrosive halogen gas evolution during reflow or field failure, improving long-term solder joint integrity and reducing board-level corrosion risk in humid environments.

Can DTH8S06FP replace standard ultrafast rectifiers like UF806 in existing designs?

Yes-DTH8S06FP is pin-compatible with UF806 in ITO-220AC footprint and offers superior performance: 21ns vs. 35ns t_RR, lower Q_RR (60nC vs. ~100nC), and softer recovery. However, its higher V_F (3.4V vs. ~2.8V) may increase conduction loss; thermal validation is required if replacing in thermally constrained layouts.