Diodes Incorporated DTH8E06FP

Overview

DTH8E06FP from Diodes Incorporated is an 8A hyper-fast epitaxial rectifier diode rated for 600V peak repetitive reverse voltage, with 25ns reverse recovery time and 2.9V forward voltage at 8A/25°C. It serves as a primary output rectifier or freewheeling diode in high-frequency SMPS topologies, especially continuous conduction mode (CCM) PFC stages in LED drivers and AC-DC adapters.

For engineers reviewing the DTH8E06FP datasheet, DTH8E06FP pinout, DTH8E06FP application, or DTH8E06FP equivalent, key selection criteria include soft recovery behavior, thermal resistance (R_θJC = 5°C/W), junction-to-lead thermal path, I_FSM surge rating (250A @ 1ms), and RoHS-compliant green molding compound suitability for industrial and consumer power supplies.

Technical Context

This device employs a soft-recovery epitaxial PN junction optimized for low switching loss and minimal EMI generation during turn-off. Its hyper-fast t_RR of 25ns (measured at IF = 0.5A, I_RR = 0.25A, I_R = 1A) enables operation in 100–500kHz SMPS designs without snubber networks.

The ITO-220AC package provides direct metal tab thermal conduction to heatsinks, with R_θJC = 5°C/W and R_θJL = 7°C/W measured at Pin 2. The glass-passivated die construction ensures long-term reliability under thermal cycling and high-voltage stress in CCM PFC applications.

Key Specifications

Pinout & Package

Package: ITO-220AC (Type WX-NC), single-diode configuration with isolated metal tab (cathode-connected). Molded plastic body with matte tin-plated leads; weight ≈ 1.522 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH8R06DJF and MUR860E, DTH8E06FP delivers superior high-frequency efficiency due to its 25ns t_RR and 5°C/W thermal resistance-critical for compact, high-density CCM PFC and fast-switching SMPS where EMI and thermal headroom are constrained.

Availability

DTH8E06FP is available at Aetrix Electronics and suitable for LED lighting drivers, universal-input AC-DC adapters, and home appliance power supplies requiring stable component supply, long-lifecycle support, and RoHS-compliant green packaging.

Supply support for DTH8E06FP 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.

DTH8E06FP belongs to Diodes' high-voltage rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion in CCM PFC and SMPS applications demanding soft recovery, low Q_RR, and robust thermal performance.

FAQ

Is DTH8E06FP suitable for automotive applications?

No-DTH8E06FP is not AEC-Q101 qualified. While it operates from –55°C to +175°C, Diodes specifies that automotive-grade versions require explicit AEC-Q101 qualification, PPAP capability, and IATF 16949 manufacturing. This part is intended for industrial, consumer, and commercial power supplies only.

What is the correct mounting orientation for thermal performance?

The metal tab (Pin 2 / Cathode) must be mounted directly to a heatsink using thermal interface material. Mechanical pressure should be applied evenly across the tab surface; torque on mounting screw must not exceed 0.5 N·m to avoid die cracking. Electrical isolation is required unless circuit topology permits direct tab grounding.

How does the 25ns t_RR value translate to real-world EMI reduction?

A 25ns t_RR limits the rate of diode current collapse (di/dt), reducing high-frequency spectral content above 10MHz. In flyback and PFC boost converters, this cuts common-mode noise amplitude by ~6–10dB compared to 50ns devices-reducing reliance on Y-capacitors and ferrite beads in Class B EMI filtering.

Can DTH8E06FP replace a standard FR107 in a 65W adapter?

Yes-but only after verifying layout and thermal design. DTH8E06FP offers lower V_F (2.9V vs. ~1.7V for FR107 at 1A, but higher at 8A) and far faster t_RR (25ns vs. 500ns), enabling higher switching frequencies and reduced snubber loss. However, its higher I_FSM and thermal mass require updated heatsinking and PCB copper area.