Taiwan Semiconductor Corporation PUUP8D

Overview

PUUP8D from Taiwan Semiconductor is a 200V, 8A ultra-fast surface-mount rectifier in TO-277A (SMPC4.6U) package, featuring 25 ns reverse recovery time, 0.88 V forward voltage at 8 A/25°C, and 175°C maximum junction temperature. It serves as a high-efficiency output rectifier in high-frequency DC/DC converters and snubber circuits.

For engineers reviewing the PUUP8D datasheet, PUUP8D pinout, PUUP8D application, or PUUP8D equivalent, key selection criteria include its 200 V repetitive peak reverse voltage, low Qrr of 89 nC, wettable flank terminals for automated optical inspection, and JESD201 Class 2 whisker resistance - all critical for power supply reliability and manufacturability.

Technical Context

The PUUP8D employs planar silicon technology optimized for ultra-fast switching, with a single-die configuration enabling low conduction loss and controlled reverse recovery behavior. Its trr of 25 ns (IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A) and IRM of 5.6 A (IF = 8.0 A, di/dt = 200 A/µs, VR = 100 V) support high-frequency operation up to several hundred kHz.

Thermal performance is defined by R_θJL = 2.0 °C/W (with ideal heatsink) and R_θJA = 48.7 °C/W on a 16 mm × 16 mm Cu pad PCB. The device's moisture sensitivity level is J-STD-020 Level 1, and terminals are matte tin-plated per J-STD-002.

Key Specifications

Pinout & Package

Package: TO-277A (SMPC4.6U), surface-mount, single-die, cathode-indicated by band, wettable flank leads, 0.104 g typical weight.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-8EWH02FN-M3/45 and MUR820G, the PUUP8D delivers lower forward voltage and reverse recovery charge in a wettable-flank SMT package - offering measurable thermal and manufacturability advantages in space-constrained, high-volume power supply designs.

Availability

PUUP8D is available at Aetrix Electronics and suitable for high-frequency DC/DC converters, snubber circuits, and automotive on-board charger auxiliary supplies requiring stable component supply and J-STD-020 Level 1 handling.

Supply support for PUUP8D 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 devices, and MOSFETs for industrial and computing markets.

The PUUP8D belongs to TSC's PUUPx ultra-fast rectifier product line, engineered specifically for high-efficiency, high-frequency switching power supplies where low Q_rr, tight V_F tolerance, and SMT manufacturability are design-critical.

FAQ

What is the maximum repetitive peak reverse voltage rating for PUUP8D?

The PUUP8D has a maximum repetitive peak reverse voltage (V_RRM) of 200 V, as confirmed in the Absolute Maximum Ratings table. This rating applies under standard test conditions (T_A = 25°C) and defines the highest reverse-biased voltage the device can block repeatedly without breakdown. Designers must maintain derating margins - typically ≥20% - when using PUUP8D in real-world circuits with voltage transients or ringing.

Does PUUP8D support automated optical inspection (AOI) during SMT assembly?

Yes, PUUP8D features wettable flank terminals per its mechanical data, enabling reliable solder joint inspection via AOI systems. This design meets industry requirements for process control in high-volume manufacturing. The TO-277A (SMPC4.6U) package geometry and matte tin plating (per J-STD-002) ensure consistent reflectivity and solder wetting - critical for detecting voids or insufficient fillet on the side walls of PUUP8D during post-reflow inspection.

What is the reverse recovery time (t_rr) of PUUP8D, and under what test conditions is it specified?

The PUUP8D reverse recovery time is 25 ns, measured under the condition: I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A. An alternate measurement yields 31 ns under I_F = 1.0 A, di/dt = 50 A/µs, V_R = 30 V. These values are documented in the Electrical Specifications table and reflect the device's ultra-fast switching capability, directly influencing efficiency in high-frequency converters where PUUP8D is deployed.

Is PUUP8D suitable for automotive applications such as on-board chargers?

PUUP8D is rated for T_J = –55°C to +175°C and meets JESD201 Class 2 whisker resistance, making it suitable for under-hood automotive auxiliary power supplies like those in on-board chargers. However, it is not AEC-Q101 qualified. For production automotive use, system-level validation is required. PUUP8D is commonly selected in pre-qualification OBC designs where its 200 V V_RRM and thermal robustness align with 400 V battery-derived rail requirements.

What is the marking code printed on the PUUP8D device body?

The marking code for PUUP8D is "PU8DH", as specified in the Absolute Maximum Ratings table under "Marking code on the device". This laser-marked identifier appears adjacent to the cathode band and is used for traceability and visual part verification during incoming inspection or rework. The "H" suffix distinguishes it from lower-voltage variants like PUUP8B (marked "PU8BH").