Diodes Incorporated PR2004-T

Overview

PR2004-T from Diodes Incorporated is a 2.0A, 400V fast recovery rectifier diode in DO-15 package, featuring 150ns reverse recovery time, 1.2V forward voltage at 2.0A, and 50A peak surge rating - used in AC/DC front-end rectification for industrial power supplies and LED drivers.

For engineers reviewing the PR2004-T datasheet, PR2004-T pinout, PR2004-T application, or PR2004-T equivalent, key selection criteria include VRRM=400V, trr=150ns, IO=2.0A @ TA=50°C, IRM=5.0μA @ 25°C, and DO-15 thermal resistance RθJA=50°C/W.

Technical Context

This device implements a diffused-junction silicon PN structure optimized for fast switching in line-frequency rectification. Its 150ns trr enables reduced switching losses in 50/60Hz and low-kHz SMPS input stages, while the 50A IFSM rating supports robust surge handling during cold-start or lightning-induced transients.

The DO-15 package provides axial-leaded mounting with UL 94V-0 flammability compliance and 0.4g mass. Thermal performance is defined under standard lead-length conditions (9.5mm from case), delivering 50°C/W junction-to-ambient resistance in free-air convection.

Key Specifications

Pinout & Package

DO-15 axial-leaded plastic package with cathode band marking; leads are tin-finished and solderable per MIL-STD-202, Method 208. Polarity is unambiguous: banded end = cathode.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH2R04 and MUR220, PR2004-T offers optimal balance of 400V rating, 150ns trr, and 1.2V VF for universal-input 2.0A rectification - making it preferred where surge robustness and thermal margin outweigh marginal speed gains.

Availability

PR2004-T is available at Aetrix Electronics and suitable for AC/DC power adapters, industrial motor drives, and LED driver power supplies requiring stable component supply and long-term BOM continuity.

Supply support for PR2004-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 PR2001–PR2005 series targets cost-sensitive, high-volume line-frequency rectification applications where reliability, surge tolerance, and RoHS compliance are prioritized over ultrafast switching.

FAQ

Is PR2004-T suitable for use in 230VAC input circuits?

Yes - its 400V peak repetitive reverse voltage (VRRM) provides a 1.4× safety margin over the 280V peak of 230VAC mains, meeting IEC 61000-4-5 surge immunity requirements when paired with appropriate MOV clamping. Derating per Figure 1 applies above 50°C ambient.

What is the maximum allowable PCB trace length from PR2004-T leads to minimize thermal resistance?

Per datasheet Note 1, leads must be maintained at ambient temperature at a distance of 9.5mm from the case to guarantee the rated 2.0A current. Longer unheatsinked traces increase effective RθJA; for >2.0A operation, use copper pour or external heatsinking beyond this point.

Does PR2004-T meet lead-free assembly standards?

Yes - it features a lead-free, RoHS-compliant tin finish on leads, qualified per J-STD-020C Level 1 moisture sensitivity, and supports Pb-free reflow profiles up to 260°C peak temperature without degradation.

Why is PR2004-T marked "Not Recommended for New Design"?

This designation reflects Diodes Incorporated's internal product lifecycle status: newer alternatives (e.g., FRED Pt or Hyperfast series) offer lower trr or VF, but PR2004-T remains fully manufactured, stocked, and supported for legacy designs and cost-driven applications where its 150ns/1.2V trade-off is acceptable.