Diodes Incorporated ES5G_HF

Overview

ES5G_HF from Diodes Incorporated is a surface-mount super fast rectifier diode rated for 400 V repetitive peak reverse voltage and 5.0 A average forward current at Tc = 110°C, featuring 40 ns reverse recovery time and 1.25 V forward voltage at 5.0 A DC. It is AEC-Q101 Rev_C qualified and used in automotive power supply input stages, AC/DC front-end rectification, and high-frequency switching power supplies.

For engineers reviewing the ES5G_HF datasheet, ES5G_HF pinout, ES5G_HF application, or ES5G_HF equivalent, key selection criteria include reverse recovery time (40 ns), forward voltage drop (1.25 V @ 5 A), thermal resistance (8 °C/W junction-to-case), AEC-Q101 qualification, and SMC package compatibility with automated PCB assembly.

Technical Context

This super fast rectifier employs a glass-passivated silicon die optimized for high-efficiency switching in 50–500 kHz power conversion topologies. Its low Qrr and 40 ns trr enable reduced switching losses compared to standard fast recovery diodes, while the 1.25 V VF at 5 A supports thermally constrained layouts.

The device operates across –55°C to +150°C junction temperature range and exhibits only 5.0 µA reverse leakage at 25°C and 300 µA at 100°C under rated blocking voltage - critical for maintaining efficiency in high-temperature automotive environments.

Key Specifications

Pinout & Package

Package: SMC (DO-214AB), surface-mount molded plastic case with cathode band marking; polarity identified by color band on cathode end; weight 0.21 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH5L06S and SB540-TB, ES5G_HF uniquely balances 400 V rating, 40 ns speed, SMC compactness, and AEC-Q101 qualification - making it optimal for space-constrained, thermally demanding automotive and industrial 5 A rectification where both voltage headroom and switching efficiency matter.

Availability

ES5G_HF is available at Aetrix Electronics and suitable for automotive power modules, industrial SMPS designs, LED driver secondary sides, and telecom DC-DC converters requiring stable component supply and AEC-Q101 compliance.

Supply support for ES5G_HF 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, specializing in high-reliability power management, signal integrity, and protection solutions.

The ES5G_HF belongs to Diodes' SMC-packaged super fast rectifier product line, engineered specifically for high-efficiency, high-temperature automotive and industrial power conversion where fast recovery, low VF, and AEC-Q101 validation are mandatory.

FAQ

Is ES5G_HF suitable for use in automotive under-hood applications?

Yes. ES5G_HF is AEC-Q101 Rev_C qualified and rated for –55°C to +150°C junction temperature. Its glass-passivated die, low IR at elevated temperatures, and UL 94V-0 molding compound make it suitable for under-hood engine control, lighting, and ADAS power supplies where thermal and environmental stress are severe.

What is the maximum allowable PCB copper area for thermal performance at 5 A?

Per Diodes' datasheet note 5, the 8 °C/W RthJC assumes mounting on a 100 mm × 100 mm × 2 mm copper plate. For 5 A continuous operation at Tc = 110°C, a minimum 25 mm² (5 mm × 5 mm) 2-oz copper pour directly under the SMC pad is recommended to maintain safe junction temperature in still-air conditions.

Does ES5G_HF have a specified reverse recovery charge (Qrr)?

No - the official Diodes datasheet for ES5G_HF does not list Qrr. However, its 40 ns trr (measured at IF = 0.5 A, IR = 1.0 A, di/dt = 100 A/µs) correlates to typical Qrr values of 15–20 nC for comparable SMC super fast rectifiers, which can be used for preliminary loss estimation in SPICE simulations.

Can ES5G_HF replace a standard FR107 in an existing design?

Yes, with caveats: ES5G_HF offers faster trr (40 ns vs. ~500 ns), lower VF (1.25 V vs. ~1.7 V), and higher IFSM (125 A vs. 30 A), but shares the same SMC footprint. Verify layout thermal relief, snubber requirements (due to faster switching), and ensure reverse voltage margin remains sufficient - ES5G_HF's 400 V rating matches FR107's 1000 V only if system peak reverse stays ≤400 V.