Taiwan Semiconductor Corporation PU2DLW

Overview

PU2DLW from Taiwan Semiconductor is a 2 A, 200 V ultra-fast surface-mount rectifier in SOD-123W package, featuring 25 ns reverse recovery time, 0.93 V max forward voltage at 2 A/25°C, and 31 nC reverse recovery charge-designed for high-frequency DC/DC converters and snubber circuits.

For engineers reviewing the PU2DLW datasheet, PU2DLW pinout, PU2DLW application, or PU2DLW equivalent, key selection criteria include its 200 V repetitive peak reverse voltage, 50 A surge current rating, 175 °C maximum junction temperature, low R_θJL of 17 °C/W, and SOD-123W footprint compatibility with automated placement.

Technical Context

The PU2DLW employs planar silicon technology to achieve ultra-fast switching performance with low conduction and switching losses. Its 25 ns trr and 31 nC Qrr enable efficient operation in high-frequency power supplies above 100 kHz.

Thermal design is supported by validated R_θJL = 17 °C/W and R_θJA = 75 °C/W on a 5 mm × 5 mm Cu pad PCB, and it operates across –55 °C to +175 °C junction temperature range with moisture sensitivity level 1 per J-STD-020.

Key Specifications

Pinout & Package

Package: SOD-123W - surface-mount plastic case with matte tin-plated leads, UL 94V-0 rated molding compound, cathode band polarity marking, and 0.015 g weight.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH2R02 and ES2D, the PU2DLW delivers superior thermal performance (17 °C/W R_θJL) and faster switching (25 ns t_rr), enabling higher power density in space-constrained SOD-123W layouts without compromising reliability at 175 °C junction temperature.

Availability

PU2DLW is available at Aetrix Electronics and suitable for high-frequency switching power supplies, DC/DC converter secondary-side rectification, and snubber network clamp applications requiring stable component supply and long-term industrial availability.

Supply support for PU2DLW 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power rectifiers, TVS diodes, and MOSFETs for industrial and computing markets.

The PU2DLW belongs to TSC's ultra-fast rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion where low Q_rr, tight V_F distribution, and robust thermal performance are critical.

FAQ

What is the maximum repetitive peak reverse voltage rating for PU2DLW?

The PU2DLW has a maximum repetitive peak reverse voltage (V_RRM) of 200 V, verified per Taiwan Semiconductor's A2210 datasheet revision. This rating allows safe operation in circuits with up to 140 V_RMS reverse bias, including 100–200 V DC bus applications and AC-DC front-end rectification. The PU2DLW maintains this rating across its full operating temperature range from –55 °C to +175 °C.

Does PU2DLW support automated PCB assembly processes?

Yes, PU2DLW supports automated placement and reflow soldering. It features a SOD-123W package with matte tin-plated leads compliant with J-STD-002, and a moisture sensitivity level (MSL) of Level 1 per J-STD-020-meaning it can be stored indefinitely at ≤30 °C/60% RH without baking prior to assembly. Its 0.015 g weight and standardized footprint ensure high-yield pick-and-place accuracy.

What is the reverse recovery time (t_rr) of PU2DLW, and under what test conditions is it specified?

The PU2DLW reverse recovery time is 25 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per the A2210 datasheet. An alternate condition yields 30 ns (IF = 1.0 A, di/dt = 50 A/µs, VR = 30 V). These values confirm its suitability for >100 kHz switching topologies where fast recovery minimizes switching loss and ringing in hard-switched converters.

How does the thermal performance of PU2DLW compare to standard SOD-123 devices?

PU2DLW achieves R_θJL = 17 °C/W and R_θJA = 75 °C/W on a 5 mm × 5 mm Cu pad PCB-significantly better than typical SOD-123 rectifiers (R_θJL ≈ 25–30 °C/W). This improvement stems from optimized leadframe design and internal die attachment, allowing PU2DLW to sustain 2 A continuous current at higher ambient temperatures without derating, especially in confined board areas.

Is PU2DLW halogen-free and RoHS-compliant?

Yes, PU2DLW is both halogen-free per IEC 61249-2-21 and RoHS-compliant per EU Directive 2011/65/EU. The molding compound is UL 94V-0 rated, and all plating and substrate materials meet strict environmental compliance requirements. These certifications are documented in Taiwan Semiconductor's A2210 product release and confirmed on official distributor pages (e.g., Digi-Key, Mouser).