Taiwan Semiconductor Corporation PU2DFSH

Overview

PU2DFSH from Taiwan Semiconductor is a 2 A, 200 V ultra-fast surface-mount rectifier in SOD-128 package, featuring 25 ns reverse recovery time, 0.93 V max forward voltage at 2 A/25°C, and AEC-Q101 qualification for automotive-grade reliability. It serves as a high-efficiency freewheeling or snubber diode in DC/DC converters operating up to several hundred kHz.

For engineers reviewing the PU2DFSH datasheet, PU2DFSH pinout, PU2DFSH application, or PU2DFSH equivalent, key selection criteria include its 200 V repetitive peak reverse voltage, 50 A surge rating, 175 °C maximum junction temperature, low R_θJL of 17 °C/W, and SOD-128 thermal performance on PCB-mounted 5 mm × 5 mm copper pads.

Technical Context

The PU2DFSH employs planar silicon technology to achieve ultra-fast switching with trr ≤ 25 ns under IF = 0.5 A / IR = 1.0 A / Irr = 0.25 A conditions and Qrr = 31 nC, enabling efficient operation in high-frequency hard-switched topologies. Its single-die configuration and cathode-band polarity marking support automated placement and unambiguous orientation on SMT lines.

Thermally, it delivers R_θJL = 17 °C/W and R_θJA = 74 °C/W when mounted on a standard 5 mm × 5 mm Cu pad, allowing sustained 2 A average forward current up to 125 °C ambient with appropriate board layout. The device meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity.

Key Specifications

Pinout & Package

SOD-128 surface-mount package with gull-wing leads, matte tin-plated terminals solderable per J-STD-002, polarity indicated by cathode band. Weight: 0.028 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH2R02DJF and ES2D-E3/57T, the PU2DFSH offers superior thermal performance (R_θJL = 17 °C/W), AEC-Q101 qualification, and tighter t_rr spec (≤25 ns), making it the preferred choice for space-constrained, high-reliability automotive and industrial DC/DC applications requiring consistent 2 A conduction and low EMI.

Availability

PU2DFSH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial snubber networks, and telecom power rectification requiring stable component supply and long-term lifecycle assurance.

Supply support for PU2DFSH 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 devices, rectifiers, and protection components.

The PU2DFSH belongs to TSC's AEC-Q101-qualified ultra-fast rectifier product line, engineered for high-frequency switching power supplies in automotive, industrial, and telecom infrastructure where low loss, fast recovery, and thermal robustness are critical.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) of the PU2DFSH?

The PU2DFSH has a maximum repetitive peak reverse voltage (V_RRM) of 200 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version B2109). This rating allows the PU2DFSH to safely block transients in 100–140 V DC bus applications with adequate margin, and is distinct from the 100 V rating of the PU2BFSH variant.

Is the PU2DFSH qualified for automotive applications?

Yes, the PU2DFSH is AEC-Q101 qualified, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. This qualification covers stress tests including HTGB, HTRB, and temperature cycling, confirming suitability for automotive powertrain and body electronics-making PU2DFSH appropriate for under-hood DC/DC converters and ADAS subsystems.

What is the reverse recovery time (t_rr) specification for the PU2DFSH?

The PU2DFSH has a reverse recovery time (t_rr) of ≤25 ns under test conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, per the Electrical Specifications table. An alternate condition (IF = 1.0 A, di/dt = 50 A/µs, VR = 30 V) yields t_rr ≤ 30 ns. These values are measured and guaranteed-not typical only-and confirm PU2DFSH's suitability for >200 kHz switching.

Which package does the PU2DFSH use, and what are its thermal characteristics?

The PU2DFSH uses the SOD-128 surface-mount package with gull-wing leads. Its thermal characteristics include R_θJL = 17 °C/W and R_θJA = 74 °C/W when mounted on a 5 mm × 5 mm copper pad per JEDEC standards. These values are verified in the Thermal Performance section and enable reliable 2 A operation without additional heatsinking in properly designed PCB layouts.

Does the PU2DFSH have a halogen-free and RoHS-compliant construction?

Yes, the PU2DFSH is both RoHS compliant and halogen-free in accordance with IEC 61249-2-21, as stated in the FEATURES section of the Taiwan Semiconductor datasheet. The molding compound meets UL 94V-0 flammability rating, and terminals are matte tin plated per J-STD-002, ensuring compatibility with lead-free reflow processes and environmental compliance requirements.