Diodes Incorporated PR2003-T

Overview

PR2003-T from Diodes Incorporated is a 2.0A fast recovery rectifier diode in DO-15 package, rated for 200V peak repetitive reverse voltage (VRRM), 1.2V forward voltage at 2.0A, and 150ns reverse recovery time - optimized for high-frequency switching power supplies, AC/DC adapters, and flyback converter output stages.

For engineers reviewing the PR2003-T datasheet, PR2003-T pinout, PR2003-T application, or PR2003-T equivalent, key selection criteria include VRRM derating under capacitive loads, thermal resistance (50°C/W), surge capability (50A peak), low IRM (5.0μA @ 25°C), and DO-15 mechanical compatibility with through-hole PCB layouts.

Technical Context

This device uses a diffused junction structure to achieve fast switching performance and low conduction loss. Its 150ns reverse recovery time (trr) and 35pF typical junction capacitance support operation up to several hundred kHz in SMPS output rectification.

The DO-15 package provides robust thermal dissipation (RθJA = 50°C/W) when leads are maintained at ambient temperature at 9.5mm from case, enabling reliable 2.0A average forward current at TA = 50°C per derating curve.

Key Specifications

Pinout & Package

DO-15 package: axial leaded, molded plastic case (UL 94V-0), cathode band marking, tin-plated leads solderable per MIL-STD-202 Method 208.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH2R02U and MUR220, PR2003-T offers balanced trade-off between recovery speed (150ns), conduction loss (1.2V), and cost-making it suitable for mainstream 100–300kHz SMPS where thermal and EMI constraints are moderate.

Availability

PR2003-T is available at Aetrix Electronics and suitable for AC/DC adapters, flyback converters, and industrial DC-DC front-ends requiring stable component supply and long-term manufacturability.

Supply support for PR2003-T 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 and manufacturing operations across Asia and the Americas.

The PR200x series belongs to Diodes' general-purpose fast recovery rectifier product line, engineered for cost-sensitive, high-volume power conversion applications demanding reliability, RoHS compliance, and standardized DO-15 packaging.

FAQ

Is PR2003-T suitable for use in capacitive-input filter circuits?

No - the datasheet explicitly states that current must be derated by 20% for capacitive loads due to elevated peak currents and associated thermal stress. It is intended for resistive or inductive loads in single-phase, half-wave configurations at 60Hz.

What is the maximum allowable junction temperature for continuous operation?

The absolute maximum junction temperature is +150°C, but sustained operation above 125°C requires careful thermal design. The derating curve shows IO drops to zero at TA = 125°C, implying TJ ≈ 175°C at that ambient if RθJA remains valid - however, 150°C is the hard limit per specification.

Does PR2003-T meet automotive qualification standards?

No - PR2003-T is not AEC-Q101 qualified. It is rated for industrial temperature range (−65°C to +150°C) and intended for commercial/industrial power supplies, not automotive systems requiring PPAP, stress testing, or zero-defect reliability protocols.

Can PR2003-T replace PR2002-T in an existing design?

Yes - both share identical DO-15 package, thermal characteristics, and forward parameters; PR2003-T's higher VRRM (200V vs. 100V) provides greater reverse voltage margin without affecting layout or thermal performance, though forward voltage and trr are nearly identical.