Diodes Incorporated PDR3G-13

Overview

PDR3G-13 from Diodes Incorporated is a 3A, 400V glass-passivated power rectifier in PowerDI™5 package, designed for single-phase half-wave AC/DC conversion in industrial power supplies and auxiliary power rails. It delivers 100A non-repetitive surge current, exhibits 0.92V typical forward voltage at 3A, and operates from –65°C to +150°C junction temperature.

For engineers reviewing the PDR3G-13 datasheet, PDR3G-13 pinout, PDR3G-13 application, or PDR3G-13 equivalent, key selection criteria include its 400V V_RRM, 3A I_O, 3.0ns reverse recovery time, thermal resistance of 2.0°C/W (junction-to-solder point), and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This device implements a planar passivated silicon PN junction optimized for high surge tolerance and low leakage. Its glass-passivated die construction ensures stable reverse characteristics up to 150°C, with IR ≤ 0.015mA at 400V and 25°C, rising to ≤250mA at 125°C.

The PowerDI™5 package enables direct PCB heat sinking via cathode pad (9.4mm × 7.2mm recommended), achieving R_θJA = 45°C/W under optimized layout - critical for compact 12–24V input offline adapters and DC-DC bias supplies.

Key Specifications

Pinout & Package

Package: PowerDI™5 - surface-mount, thermally enhanced plastic case with exposed cathode pad. Cathode and anode terminals are on opposite edges; left and right pins must be electrically connected on PCB for mechanical stability and thermal path continuity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH3L06S and MBR340F-E3/45, PDR3G-13 uniquely balances AEC-Q101 compliance, 150°C operation, and 3.0ns t_rr in a thermally optimized surface-mount package - making it optimal for space-constrained, high-reliability industrial and automotive auxiliary supplies.

Availability

PDR3G-13 is available at Aetrix Electronics and suitable for industrial AC/DC adapters, automotive body control modules, LED driver auxiliary supplies, and smart meter power rails requiring stable component supply across multi-year production cycles.

Supply support for PDR3G-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, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and Malaysia.

The PDR3G belongs to Diodes' Power Rectifiers product line, engineered specifically for high-reliability, thermally demanding AC/DC front-end and auxiliary power applications in automotive, industrial, and energy infrastructure systems.

FAQ

What is the maximum allowable PCB copper area for optimal thermal performance of PDR3G-13?

The datasheet specifies a cathode pad dimension of 9.4mm × 7.2mm and anode pad of 2.7mm × 1.6mm on polyimide PCB with 2 oz. copper to achieve R_θJA = 45°C/W. Using FR-4 with same copper weight yields R_θJA = 75°C/W - so pad size alone is insufficient without substrate and copper weight alignment.

Can PDR3G-13 be used in full-wave bridge configurations?

No - PDR3G-13 is a single anode-cathode diode intended for half-wave rectification. For full-wave operation, four PDR3G-13 units may be assembled into a discrete bridge, but Diodes recommends dedicated bridge rectifiers like DB107S for optimized layout, thermal coupling, and reliability.

Is the PowerDI™5 package compatible with standard SMT reflow profiles?

Yes - PDR3G-13 uses matte tin annealed over copper leadframe and is rated for lead-free reflow with peak temperature up to 260°C per JEDEC J-STD-020. Moisture sensitivity level is Grade 1, eliminating bake requirements prior to assembly.

How does capacitive loading affect the current rating of PDR3G-13?

The datasheet explicitly states that for capacitive loads, the average output current I_O must be derated by 20% - reducing the usable rating from 3A to 2.4A. This accounts for increased peak current stress during capacitor charging transients, which elevates junction temperature beyond resistive-load assumptions.