Diodes Incorporated DSRHD04-13

Overview

DSRHD04-13 from Diodes Incorporated is a glass passivated single-phase bridge rectifier with 400 V peak repetitive reverse voltage (VRRM), 1.0 A average rectified output current (IO), and 150 °C maximum junction temperature, used in AC/DC power conversion stages of offline power supplies and industrial control power modules.

For engineers reviewing the DSRHD04-13 datasheet, DSRHD04-13 pinout, DSRHD04-13 application, or DSRHD04-13 equivalent, key selection criteria include its T-MiniDIP package thermal resistance (RθJL = 25 °C/W), 30 A non-repetitive surge rating (IFSM), and low forward voltage (VF = 1.1 V @ 1.0 A) under full-load conditions.

Technical Context

This bridge rectifier integrates four diodes in a single-phase full-wave configuration, enabling efficient AC-to-DC conversion without external interconnection. It operates across –55 °C to +150 °C ambient and supports lead-free reflow soldering per MIL-STD-202.

Designed for resistive or inductive loads at 60 Hz, it requires 20% current derating for capacitive-input filter applications. Its glass passivation ensures stable reverse leakage (IR ≤ 150 µA @ 125 °C) and high reliability in thermally demanding environments.

Key Specifications

Pinout & Package

DSRHD04-13 uses the T-MiniDIP package (4-pin, 5.0 mm × 5.4 mm footprint), with leads arranged as AC input (pins 1 & 3), DC+ (pin 2), and DC– (pin 4). The molded green plastic case meets UL 94V-0 flammability rating.

Key Features

Applications

Availability

DSRHD04-13 is available at Aetrix Electronics and suitable for industrial power supplies, consumer AC/DC adapters, and LED driver power stages requiring stable component supply despite its obsolete status and end-of-life notification.

Supply support for DSRHD04-13 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 and signal integrity solutions for industrial, computing, and consumer markets.

The DSRHDxx series belongs to Diodes' high-temperature bridge rectifier product line, engineered for rugged AC/DC front-end conversion where thermal resilience and surge immunity are critical.

FAQ

Is DSRHD04-13 still in production?

No. Diodes Incorporated officially discontinued DSRHD04-13 and marked it as obsolete per document DS35952 Rev. 5-4 (July 2018). No alternate part is offered by the manufacturer, and new production has ceased. Aetrix Electronics maintains limited legacy stock for continuity support.

What is the correct pin 1 orientation for DSRHD04-13?

Pin 1 is the leftmost lead when viewing the top marking side with the polarity indicator ('+' symbol or '~' markings) oriented upright. The bottom-view diagram in DS35952 confirms Pin 1 and Pin 3 as AC inputs, Pin 2 as DC+, and Pin 4 as DC–.

Can DSRHD04-13 replace DSRHD02-13 or DSRHD06-13?

No - DSRHD04-13 is not a drop-in replacement due to its specific 400 V VRRM rating. Substituting with DSRHD02-13 (200 V) risks reverse breakdown; using DSRHD06-13 (600 V) may increase forward voltage and reduce efficiency at light loads without system-level validation.

What is the maximum allowable PCB copper area for thermal relief?

While no minimum copper area is specified, Diodes recommends ≥ 100 mm² of 1 oz copper connected to each lead (especially Pins 2 and 4) to achieve the stated RθJA of 62.5 °C/W on aluminum substrate. Thermal vias under Pins 2 and 4 further improve dissipation in multilayer boards.