Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation PU3DC

Name: PU3DC
Brand: Taiwan Semiconductor Corporation
SKU: PU3DC
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: PU3DC

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: PU3DC.pdf

Description:: 25NS, 3A, 200V, ULTRA FAST RECOV

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,990

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

PU3DC from Taiwan Semiconductor is a 200V, 3A ultra-fast surface-mount rectifier in DO-214AB (SMC) package, featuring 25ns reverse recovery time, 0.93V max forward voltage at 3A/25°C, and 175°C maximum junction temperature - deployed in high-frequency DC/DC converters and snubber circuits.

For engineers reviewing the PU3DC datasheet, PU3DC pinout, PU3DC application, or PU3DC equivalent, key selection criteria include its 200V repetitive peak reverse voltage, low Qrr of 51nC, thermal resistance R_θJL of 14°C/W, and compatibility with automated SMT placement on standard PCB pads.

Technical Context

This single-die, planar-technology rectifier delivers ultra-fast switching performance optimized for high-frequency power conversion topologies. Its 25ns trr and 51nC Qrr minimize switching losses during turn-off, while the 0.86V typical VF at 3A/25°C supports high-efficiency operation under rated load.

The device operates across -55°C to +175°C junction temperature range and is qualified to JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity - enabling reliable use in industrial and automotive-grade power supplies without baking or special handling.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in flyback or snubber applications
I_F	3 A - Continuous average forward current; determines heatsink or PCB copper area requirements
t_rr	25 ns - Reverse recovery time at IF=0.5A/IR=1.0A/Irr=0.25A; critical for minimizing switching loss in >100kHz converters
Q_rr	51 nC - Reverse recovery charge; directly impacts EMI and diode dissipation during hard-switching transitions
R_θJL	14 °C/W - Junction-to-lead thermal resistance; enables direct thermal path to PCB copper for passive cooling
V_F @ 3A/25°C	0.93 V max - Forward voltage drop at full rated current; sets conduction loss baseline in rectification stage
I_FSM	85 A - Non-repetitive surge current (8.3ms); supports inrush and fault-current withstand capability

Pinout & Package

Package: DO-214AB (SMC), molded case with matte tin-plated leads, cathode indicated by band, UL 94V-0 rated compound, 0.200g weight.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side (e.g., switch node in flyback secondary or buck freewheel path)
Cathode	Forward current exit / reverse blocking terminal	Marked by band; ties to output rail or filter capacitor positive; blocks up to 200V reverse bias

Key Features

Feature	Design Value
Ultra-fast recovery	25ns t_rr enables efficient operation in 100–500kHz SMPS designs without excessive switching loss
Low Q_rr	51nC reduces di/dt-induced voltage spikes and EMI generation during turn-off transitions
High T_J rating	175°C maximum junction temperature allows sustained operation in compact, thermally constrained enclosures
Automated placement ready	DO-214AB (SMC) outline and Level 1 moisture sensitivity support standard SMT reflow without pre-bake
RoHS & halogen-free	Complies with IEC 61249-2-21 and EU RoHS; suitable for environmentally regulated industrial and consumer end equipment

Applications

High-Frequency DC/DC Converter	Snubber Circuit
Use Scenario: Secondary-side rectification in 200–500kHz isolated flyback or forward converters powering telecom or server PSUs. IC Role / Device Role / Timing Role: Fast-recovery rectifier conducting during transformer reset phase; replaces slower standard recovery diodes to reduce losses. Use Value: 25ns t_rr and 51nC Q_rr cut switching losses by >30% vs. 50ns diodes at 300kHz, improving efficiency and thermal margin.	Use Scenario: RC snubber network across MOSFET drain-source in hard-switched PFC or LLC primary stages. IC Role / Device Role / Timing Role: Clamp diode that conducts transient energy during MOSFET turn-off, absorbing voltage overshoot. Use Value: 200V V_RRM and 85A I_FSM ensure robust clamping under 600V bus transients; fast recovery prevents latch-up.
Industrial AC-DC Power Supply	Automotive On-Board Charger (OBC) Auxiliary Supply
Use Scenario: Output rectification in 30–60W industrial control power modules requiring long-term reliability at 70°C ambient. IC Role / Device Role / Timing Role: Primary output rectifier delivering stable 12V/24V bias rails for PLC I/O and sensor interfaces. Use Value: 175°C T_JMAX and 14°C/W R_θJL allow full 3A load without active cooling on 16mm×16mm Cu pad.	Use Scenario: Auxiliary 12V supply rectification in OBC systems where space and thermal management are constrained. IC Role / Device Role / Timing Role: High-reliability rectifier in isolated auxiliary converter feeding MCU, gate drivers, and communication ICs. Use Value: JESD201 Class 2 whisker resistance and -55°C to +175°C rating meet AEC-Q101 stress requirements for under-hood environments.

High-Frequency DC/DC Converter

Snubber Circuit

Use Scenario: Secondary-side rectification in 200–500kHz isolated flyback or forward converters powering telecom or server PSUs.

IC Role / Device Role / Timing Role: Fast-recovery rectifier conducting during transformer reset phase; replaces slower standard recovery diodes to reduce losses.

Use Value: 25ns t_rr and 51nC Q_rr cut switching losses by >30% vs. 50ns diodes at 300kHz, improving efficiency and thermal margin.

Use Scenario: RC snubber network across MOSFET drain-source in hard-switched PFC or LLC primary stages.

IC Role / Device Role / Timing Role: Clamp diode that conducts transient energy during MOSFET turn-off, absorbing voltage overshoot.

Use Value: 200V V_RRM and 85A I_FSM ensure robust clamping under 600V bus transients; fast recovery prevents latch-up.

Industrial AC-DC Power Supply

Automotive On-Board Charger (OBC) Auxiliary Supply

Use Scenario: Output rectification in 30–60W industrial control power modules requiring long-term reliability at 70°C ambient.

IC Role / Device Role / Timing Role: Primary output rectifier delivering stable 12V/24V bias rails for PLC I/O and sensor interfaces.

Use Value: 175°C T_JMAX and 14°C/W R_θJL allow full 3A load without active cooling on 16mm×16mm Cu pad.

Use Scenario: Auxiliary 12V supply rectification in OBC systems where space and thermal management are constrained.

IC Role / Device Role / Timing Role: High-reliability rectifier in isolated auxiliary converter feeding MCU, gate drivers, and communication ICs.

Use Value: JESD201 Class 2 whisker resistance and -55°C to +175°C rating meet AEC-Q101 stress requirements for under-hood environments.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay VS-3EYH02-M3/45	200V V_RRM, 3A I_F, 35ns t_rr, DO-214AB, but higher VF (1.05V max @ 3A)	Slightly higher conduction loss; less optimal for high-efficiency <400kHz designs	Acceptable where thermal headroom exists and cost is prioritized over peak efficiency
ON Semiconductor MUR320G	200V V_RRM, 3A I_F, 35ns t_rr, TO-220AC package - not surface-mount compatible	Requires through-hole assembly and heatsinking; unsuitable for dense SMT layouts	Only viable if board redesign accommodates leaded package and added thermal mass

Compared with VS-3EYH02-M3/45 and MUR320G, PU3DC offers superior switching speed (25ns vs. 35ns) and SMT-ready DO-214AB packaging - delivering lower system-level losses and higher power density in space-constrained, high-frequency power supplies.

Availability

PU3DC is available at Aetrix Electronics and suitable for high-frequency DC/DC converters, snubber circuits, and industrial AC-DC power supplies requiring stable component supply, consistent parametric performance, and long-term manufacturability.

Supply support for PU3DC 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, serving global industrial, computing, and consumer markets since 1979.

The PU3DC belongs to TSC's ultra-fast rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion in compact SMT-based power supplies - emphasizing low Q_rr, tight VF distribution, and rugged thermal performance.

FAQ

What is the maximum repetitive peak reverse voltage rating for PU3DC?

The PU3DC has a maximum repetitive peak reverse voltage (V_RRM) of 200 V, as confirmed in the Absolute Maximum Ratings table. This rating defines the highest reverse-bias voltage the device can block continuously without breakdown, making it suitable for 200V-class snubber and secondary-side rectification applications. The PU3DC datasheet specifies this value explicitly for the "PU3DC" variant, distinguishing it from the 100V-rated PU3BC.

What is the forward voltage drop of PU3DC at 3A and 25°C?

The PU3DC exhibits a maximum forward voltage (V_F) of 0.93 V at 3A forward current and 25°C junction temperature, per the Electrical Specifications table. At the same current and 125°C, V_F drops to 0.73 V typical. This low, temperature-stable VF contributes to reduced conduction losses in high-duty-cycle rectifier applications.

Is PU3DC suitable for automated SMT assembly?

Yes, PU3DC is fully suitable for automated surface-mount assembly. It uses the DO-214AB (SMC) package with matte tin-plated leads compliant with J-STD-002 solderability standards and carries J-STD-020 Moisture Sensitivity Level 1 - meaning it can be placed and reflowed without baking or special handling, supporting high-yield, high-volume manufacturing.

What is the reverse recovery time (t_rr) specification for PU3DC?

The PU3DC has a reverse recovery time (t_rr) of 25 ns under test conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. An alternate measurement at I_F = 1.0 A, di/dt = 50 A/µs, and V_R = 30 V yields 31 ns. These values confirm its classification as an ultra-fast rectifier optimized for >100 kHz switching frequencies.

Does PU3DC meet RoHS and halogen-free compliance requirements?

Yes, PU3DC is RoHS compliant and halogen-free per IEC 61249-2-21. The device uses molding compound and plating materials certified to these environmental standards, as stated in the FEATURES section of the official Taiwan Semiconductor documentation. This makes PU3DC appropriate for export-controlled and green-electronics applications worldwide.

PU3DC Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AB, SMC

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 200 V

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 930 mV @ 3 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 25 ns

Current - Reverse Leakage @ Vr:: 2 µA @ 200 V

Capacitance @ Vr, F:: 47pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AB (SMC)

Operating Temperature - Junction:: -55°C ~ 175°C

PU3DC FAQ

1.How can I place an order for PU3DC through Aetrix?

Please submit a Request for Quotation (RFQ) for PU3DC on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for PU3DC reliable?

The price and inventory of PU3DC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PU3DC is usually 5 days.

3.What payment methods are accepted for PU3DC?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PU3DC transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PU3DC?

PU3DC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PU3DC order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for PU3DC?

For technical support, including PU3DC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PU3DC requirements.

6.How does Aetrix verify that PU3DC is sourced from the original manufacturer or authorized distributors?

All PU3DC products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PU3DC meets industry standards.

7.What is the process for return or replacement of PU3DC?

All PU3DC units undergo pre-shipment inspection (PSI). If there is an issue with PU3DC, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The PU3DC part is unused and in its original packaging.

Return procedure for PU3DC:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…