Diodes Incorporated PR2002-T

Overview

PR2002-T from Diodes Incorporated is a 2.0A fast recovery rectifier diode in DO-15 package, rated for 100V peak repetitive reverse voltage (VRRM), 1.2V forward voltage at 2.0A, and 150ns reverse recovery time - used in AC/DC input stage rectification for offline power supplies and auxiliary rail generation.

For engineers reviewing the PR2002-T datasheet, PR2002-T pinout, PR2002-T application, or PR2002-T equivalent, key selection criteria include VRRM derating margin, IFSM surge capability under line transients, thermal resistance (RθJA = 50°C/W), and low IRM leakage at elevated temperature.

Technical Context

This device employs a diffused junction structure to achieve fast switching with controlled minority carrier lifetime, enabling high-efficiency operation in 50/60Hz and higher-frequency rectification circuits. Its 150ns trr and 5.0μA IRM at 25°C support stable performance in flyback and forward converter secondary-side rectifiers.

The DO-15 package provides axial-leaded mounting with UL 94V-0 molded plastic housing, cathode band polarity marking, and tin-plated terminals compliant with MIL-STD-202 Method 208. Thermal design must account for 50°C/W junction-to-ambient resistance under 50°C ambient conditions.

Key Specifications

Pinout & Package

DO-15 axial-leaded package with cathode band marking; two-terminal device (anode and cathode) with no internal connections beyond the semiconductor junction.

Key Features

Applications

Availability

PR2002-T is available at Aetrix Electronics and suitable for AC/DC adapter input rectification, industrial control power supply auxiliary rails, and LED driver bulk rectification requiring stable component supply and long-term manufacturability.

Supply support for PR2002-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, specializing in high-reliability power management and signal integrity solutions for industrial, computing, and consumer markets.

The PR200x series belongs to Diodes' fast recovery rectifier product line, engineered for cost-sensitive, thermally constrained offline power applications where efficiency, surge robustness, and long-term stability are prioritized over ultrafast switching.

FAQ

Is PR2002-T suitable for 230VAC input applications?

No. With a 100V VRRM rating, PR2002-T is rated only for 115VAC nominal systems (peak ~162V). For 230VAC inputs, PR2004-T (400V) or PR2005-T (600V) are required to maintain ≥2× safety margin against line surges and transients.

What is the maximum allowable junction temperature for continuous operation?

The absolute maximum junction temperature is +150°C, but continuous operation must be limited by thermal design. At 2.0A IO and 50°C ambient, junction temperature rises by 100°C (2.0A² × RθJA × 50°C/W), reaching 150°C - thus derating to ≤1.4A is required for sustained 50°C ambient use.

Does PR2002-T have a specified reverse recovery charge (Qrr)?

No. The datasheet specifies trr = 150ns but does not list Qrr. Designers should estimate Qrr using typical CT = 35pF and trr, or select alternatives like the SB2100 (Schottky) if Qrr-sensitive snubberless topologies are used.

Can PR2002-T replace a 1N4002 in existing designs?

Yes, with performance benefits: PR2002-T offers faster trr (150ns vs. 30μs), lower VFM (1.2V vs. 1.1V), and higher IFSM (50A vs. 50A), making it a direct upgrade for noise-sensitive or high-surge applications - though layout parasitics may require re-evaluation due to faster switching.