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

Taiwan Semiconductor Corporation PU2DBH

Name: PU2DBH
Brand: Taiwan Semiconductor Corporation
SKU: PU2DBH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PU2DBH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: PU2DBH.pdf

Description:: DIODE GEN PURP 200V 2A DO214AA

Quantity:: RFQ Add To RFQ list

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Inventory:6,000

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Product details

Overview

PU2DBH from Taiwan Semiconductor is a 2 A, 200 V ultra-fast surface-mount rectifier diode in DO-214AA (SMB) package, featuring 25 ns reverse recovery time, 0.87 V forward voltage at 2 A/25°C, and AEC-Q101 qualification for automotive-grade reliability. It serves as a primary output rectifier in high-frequency DC/DC converters.

For engineers reviewing the PU2DBH datasheet, PU2DBH pinout, PU2DBH application, or PU2DBH equivalent, key selection criteria include its 200 V repetitive peak reverse voltage, 50 A surge current rating, 175 °C maximum junction temperature, and ultra-fast switching performance in snubber and flyback topologies.

Technical Context

The PU2DBH employs planar silicon technology to achieve low conduction loss and controlled reverse recovery behavior. Its 25 ns trr and 31 nC Qrr support operation in >100 kHz switching power supplies without excessive switching loss or EMI generation.

Thermally, it delivers R_θJL = 16 °C/W and R_θJA = 73 °C/W on a 10 mm × 10 mm Cu pad, enabling sustained 2 A DC operation up to 125 °C ambient when properly mounted. The cathode-band polarity marking and matte tin-plated leads ensure compatibility with automated SMT assembly per J-STD-002.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - supports input/output isolation in 200 V-class industrial and automotive DC/DC stages
I_F	2 A continuous - sustains full-load current in compact 12–48 V output converters
t_rr	25 ns - enables efficient high-frequency operation with minimal switching loss and ringing
V_F @ 2 A, 25°C	0.87 V max - reduces conduction loss vs. standard fast recovery diodes (typically ≥1.1 V)
I_FSM	50 A @ 8.3 ms - withstands inrush and transient overloads in power supply startup
T_J max	175 °C - allows operation in under-hood automotive environments and sealed industrial enclosures
Q_rr	31 nC - limits tail current and associated losses in hard-switched topologies

Pinout & Package

DO-214AA (SMB) surface-mount package with molded epoxy case (UL 94V-0), matte tin-plated leads, and cathode band polarity indicator. Weight: 0.087 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Current entry terminal	Connected to lower-potential node (e.g., transformer secondary center-tap or switch node)
Cathode	Current exit terminal	Marked by band; connects to output rail or filter capacitor positive terminal

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive powertrain and body electronics per stress test requirements
Ultra-fast recovery (t_rr ≤ 25 ns)	Reduces switching loss and EMI in 100–500 kHz SMPS designs
Low V_F (0.87 V @ 2 A)	Improves efficiency by ~0.3–0.5% in 12 V/2 A output stages vs. legacy fast rectifiers
R_θJL = 16 °C/W	Enables direct thermal coupling to PCB copper, simplifying heatsinking in space-constrained layouts
Moisture sensitivity level 1	Eliminates bake requirement before reflow, supporting standard SMT line throughput

Applications

Automotive DC/DC Converters	Industrial Flyback Supplies
Use Scenario: 12 V to 5 V/3.3 V point-of-load conversion in engine control units and ADAS modules. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant flyback topology. Use Value: AEC-Q101 qualification and 175 °C T_J max ensure long-term reliability under under-hood thermal cycling.	Use Scenario: Isolated auxiliary supply for PLC I/O modules operating from 24–48 V DC bus. IC Role / Device Role / Timing Role: Primary secondary-side rectifier handling 2 A continuous load. Use Value: 25 ns t_rr and 31 nC Q_rr minimize switching loss and improve light-load efficiency.
Snubber Networks	High-Frequency AC/DC Adapters
Use Scenario: Clamp diode in RCD snubber circuits across MOSFETs in 65–130 kHz PFC stages. IC Role / Device Role / Timing Role: Fast-recovery clamp path for energy dissipation during turn-off. Use Value: Low Q_rr prevents charge injection into snubber capacitor, stabilizing clamp voltage.	Use Scenario: Secondary-side rectification in compact 65 W laptop adapters using QR flyback. IC Role / Device Role / Timing Role: Surface-mount output rectifier replacing axial-leaded devices. Use Value: DO-214AA footprint and 0.087 g weight support ultra-thin adapter mechanical design.

Automotive DC/DC Converters

Industrial Flyback Supplies

Use Scenario: 12 V to 5 V/3.3 V point-of-load conversion in engine control units and ADAS modules.

IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant flyback topology.

Use Value: AEC-Q101 qualification and 175 °C T_J max ensure long-term reliability under under-hood thermal cycling.

Use Scenario: Isolated auxiliary supply for PLC I/O modules operating from 24–48 V DC bus.

IC Role / Device Role / Timing Role: Primary secondary-side rectifier handling 2 A continuous load.

Use Value: 25 ns t_rr and 31 nC Q_rr minimize switching loss and improve light-load efficiency.

Snubber Networks

High-Frequency AC/DC Adapters

Use Scenario: Clamp diode in RCD snubber circuits across MOSFETs in 65–130 kHz PFC stages.

IC Role / Device Role / Timing Role: Fast-recovery clamp path for energy dissipation during turn-off.

Use Value: Low Q_rr prevents charge injection into snubber capacitor, stabilizing clamp voltage.

Use Scenario: Secondary-side rectification in compact 65 W laptop adapters using QR flyback.

IC Role / Device Role / Timing Role: Surface-mount output rectifier replacing axial-leaded devices.

Use Value: DO-214AA footprint and 0.087 g weight support ultra-thin adapter mechanical design.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH2R02	200 V V_RRM, 2 A I_F, but t_rr = 35 ns (vs. PU2DBH's 25 ns); VF = 0.95 V @ 2 A	Higher switching loss in >200 kHz designs; less suitable for critical EMI-limited applications	Select PU2DBH where tighter trr and lower VF are required for efficiency or noise targets
ES2D	200 V V_RRM, 2 A I_F, t_rr = 35 ns, VF = 0.92 V @ 2 A; not AEC-Q101 qualified	Lacks automotive qualification; limited to commercial/industrial use only	Choose PU2DBH for automotive or extended-temperature deployments requiring validated reliability

Compared with STTH2R02 and ES2D, the PU2DBH delivers superior switching speed (25 ns trr), lower forward drop (0.87 V), and AEC-Q101 qualification-making it the preferred choice for thermally demanding, high-efficiency, and automotive-compliant power conversion.

Availability

PU2DBH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial flyback supplies, and high-frequency AC/DC adapters requiring stable component supply and long-term lifecycle support.

Supply support for PU2DBH 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.

The PU2DBH belongs to TSC's PU2x BH ultra-fast rectifier family, engineered specifically for high-efficiency, high-reliability switching power supplies in automotive and industrial environments.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) of the PU2DBH?

The PU2DBH 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 defines the highest reverse voltage the PU2DBH can block continuously without breakdown under specified thermal conditions, making it suitable for 200 V-class power supply outputs and snubber circuits.

Is the PU2DBH AEC-Q101 qualified?

Yes, the PU2DBH is explicitly AEC-Q101 qualified, as stated in the FEATURES section of the Taiwan Semiconductor datasheet. This qualification confirms that the PU2DBH has passed stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing-validating its suitability for automotive power electronics where reliability under thermal and mechanical stress is critical.

What is the forward voltage (V_F) of the PU2DBH at 2 A and 25°C?

The forward voltage (V_F) of the PU2DBH is 0.87 V maximum at 2 A forward current and 25°C junction temperature, per the Electrical Specifications table. This value reflects worst-case conduction loss under nominal conditions and is measured with pulse testing (PW = 0.3 ms), ensuring accurate representation of real-world switching converter operation.

What package type does the PU2DBH use?

The PU2DBH uses the DO-214AA (SMB) surface-mount package, as documented in the MECHANICAL DATA and ORDERING INFORMATION sections. It features a molded UL 94V-0 epoxy case, matte tin-plated leads compliant with J-STD-002, and cathode polarity indicated by a visible band-enabling reliable automated placement and soldering in high-volume manufacturing.

What is the reverse recovery time (t_rr) of the PU2DBH?

The reverse recovery time (t_rr) of the PU2DBH is 25 ns maximum, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions, as specified in the ELECTRICAL SPECIFICATIONS table. This ultra-fast recovery characteristic minimizes switching loss and voltage overshoot in high-frequency DC/DC and flyback converters where the PU2DBH is deployed.

PU2DBH Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AA, SMB

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

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

Current - Average Rectified (Io):: 2A

Voltage - Forward (Vf) (Max) @ If:: 930 mV @ 2 A

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

Reverse Recovery Time (trr):: 25 ns

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

Capacitance @ Vr, F:: 33pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AA (SMB)

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

PU2DBH FAQ

1.How can I place an order for PU2DBH through Aetrix?

Please submit a Request for Quotation (RFQ) for PU2DBH 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 PU2DBH reliable?

The price and inventory of PU2DBH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PU2DBH is usually 5 days.

3.What payment methods are accepted for PU2DBH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PU2DBH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PU2DBH?

PU2DBH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PU2DBH 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 PU2DBH?

For technical support, including PU2DBH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PU2DBH requirements.

6.How does Aetrix verify that PU2DBH is sourced from the original manufacturer or authorized distributors?

All PU2DBH 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 PU2DBH meets industry standards.

7.What is the process for return or replacement of PU2DBH?

All PU2DBH units undergo pre-shipment inspection (PSI). If there is an issue with PU2DBH, 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 PU2DBH part is unused and in its original packaging.

Return procedure for PU2DBH:

1.Submit a request within 90 days.

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

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