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Taiwan Semiconductor Corporation PU2DA
- Part No.:
- PU2DA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
PU2DA.pdf
- Description:
- 25NS, 2A, 200V, ULTRA FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
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Product details
Overview
PU2DA from Taiwan Semiconductor is a 2 A, 200 V ultra-fast surface-mount rectifier diode in DO-214AC (SMA) package, featuring 25 ns reverse recovery time, 0.93 V max forward voltage at 2 A/25°C, and 175°C maximum junction temperature. It serves as a high-efficiency freewheeling or snubber diode in DC/DC converters operating at high switching frequencies.
For engineers reviewing the PU2DA datasheet, PU2DA pinout, PU2DA application, or PU2DA equivalent, key selection criteria include its 200 V repetitive peak reverse voltage, ultra-fast trr ≤ 25 ns, low VF of 0.87 V typical at 2 A/25°C, thermal resistance RθJA = 78°C/W on standard PCB, and DO-214AC mechanical compatibility with automated SMT assembly.
Technical Context
The PU2DA is a single-die planar silicon rectifier optimized for high-frequency switching applications. Its ultra-fast recovery (trr ≤ 25 ns) and low Qrr (31 nC) minimize switching losses during turn-off, while its 2 A average forward current rating and 50 A surge capability support robust operation under transient loads.
Thermally, it delivers RθJL = 18°C/W and RθJC = 23°C/W, enabling effective heat transfer to PCB copper pads or heatsinks. The device operates across –55°C to +175°C junction temperature range and meets J-STD-020 moisture sensitivity level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse voltage; defines safe blocking capability in DC/DC snubber or flyback clamp circuits |
| IF(AV) | 2 A - Continuous average forward current; supports sustained conduction in 100–500 kHz power stages |
| trr | ≤ 25 ns - Ultra-fast reverse recovery; reduces switching loss and EMI in high-frequency topologies |
| VF @ 2A/25°C | 0.87 V typ, 0.93 V max - Low forward drop improves system efficiency and reduces thermal load |
| Qrr | 31 nC - Low reverse recovery charge minimizes voltage overshoot and stress on switching MOSFETs |
| TJ(max) | +175°C - High junction temperature rating enables operation in compact, thermally constrained enclosures |
| RθJA | 78°C/W - Measured on 5 mm × 5 mm Cu pad; informs thermal design margin for PCB layout |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, cathode-indicated by band, matte tin-plated leads, UL 94V-0 molding compound, 0.060 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (lead 1) | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); requires adequate copper area for thermal dissipation |
| Cathode (lead 2, banded end) | Forward current exit / reverse voltage blocking terminal | Connected to higher-potential rail (e.g., output capacitor positive); polarity must be observed to prevent catastrophic failure |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast recovery (trr ≤ 25 ns) | Enables use in ≥300 kHz switching converters without excessive diode-induced losses or ringing |
| Low Qrr (31 nC) | Reduces voltage spikes across synchronous FETs and lowers EMI filter requirements |
| Planar silicon construction | Delivers consistent parametric performance and high reliability under thermal cycling |
| Moisture sensitivity level 1 | Eliminates need for dry-pack or baking prior to reflow, supporting direct SMT line integration |
| Halogen-free & RoHS compliant | Meets IPC-1752A environmental compliance requirements for industrial and consumer end equipment |
Applications
| Switch-Mode Power Supply Output Rectification | Snubber Network Diode |
|---|---|
Use Scenario: Used as secondary-side rectifier in isolated DC/DC converters (e.g., 48 V to 12 V telecom PSU). IC Role / Device Role / Timing Role: Unidirectional current conduction during transformer secondary voltage polarity phase; freewheeling path during MOSFET off-time. Use Value: 200 V VRRM safely handles reflected primary-side transients; 25 ns trr limits reverse conduction loss and improves light-load efficiency. | Use Scenario: Placed across switching MOSFETs or IGBTs in flyback, forward, or resonant converters. IC Role / Device Role / Timing Role: Clamps voltage spikes during turn-off by providing fast, low-loss discharge path for leakage inductance energy. Use Value: Low Qrr (31 nC) and fast trr (≤25 ns) suppress voltage overshoot below MOSFET breakdown limit; 175°C TJ(max) sustains reliability under repeated surge stress. |
| High-Frequency DC/DC Converter Freewheeling | Automotive LED Driver Flyback Clamp |
Use Scenario: Freewheeling diode in 200–500 kHz buck or boost regulators powering FPGA core rails. IC Role / Device Role / Timing Role: Provides continuous current path during high-side switch off-time; conducts only during defined duty-cycle intervals. Use Value: 0.93 V max VF at 2 A reduces conduction loss and self-heating; DO-214AC footprint allows dense layout in space-constrained modules. | Use Scenario: Clamp diode in automotive LED driver flyback topology subjected to load dump and cold-crank conditions. IC Role / Device Role / Timing Role: Absorbs transformer leakage energy during primary switch turn-off; blocks reverse voltage during primary conduction phase. Use Value: 200 V VRRM withstands ISO 7637-2 pulse 5a (load dump up to 120 V); –55°C to +175°C rating covers full automotive ambient range. |
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 | 2 A, 200 V, trr = 35 ns (max), VF = 0.95 V (max @ 2 A), RθJA = 80°C/W | Higher trr increases switching loss in >250 kHz designs; slightly higher VF raises thermal load | Acceptable where 35 ns trr is within system EMI/efficiency budget and layout allows same DO-214AC footprint |
| ES2D | 2 A, 200 V, trr = 35 ns (typ), VF = 0.92 V (max @ 2 A), RθJA = 75°C/W, halogen-free | Slower recovery than PU2DA; tighter RθJA margin but less robust Qrr (40 nC) | Suitable for cost-sensitive 100–200 kHz applications where 25 ns trr is not critical |
Compared with STTH2R02 and ES2D, the PU2DA offers superior switching speed (trr ≤ 25 ns vs. ≥35 ns) and lower Qrr (31 nC vs. ≥40 nC), making it preferred for high-frequency, high-efficiency DC/DC and snubber designs where diode-induced loss and voltage overshoot must be minimized.
Availability
PU2DA is available at Aetrix Electronics and suitable for high-frequency DC/DC converters, snubber networks, and automotive LED driver flyback clamps requiring stable component supply, long-term manufacturability, and RoHS-compliant sourcing.
Supply support for PU2DA 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, MOSFETs, and ICs for industrial and consumer markets.
The PU2DA belongs to TSC's PU2x series of ultra-fast rectifiers designed specifically for high-efficiency, high-frequency power conversion in compact SMT-based power supplies and motor control systems.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) rating for PU2DA?
The PU2DA has a VRRM rating of 200 V, verified per Taiwan Semiconductor's A2210 datasheet revision. This value defines the highest instantaneous reverse voltage the diode can block repeatedly without breakdown. Engineers must ensure that peak reverse voltage in the target circuit-including transients and ringing-remains below 200 V to maintain reliable operation of the PU2DA.
Does PU2DA have a specified reverse recovery time (trr), and what is its typical value?
Yes, the PU2DA specifies a reverse recovery time of ≤25 ns under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A test conditions. This ultra-fast trr is confirmed in the Electrical Specifications table of the official datasheet. The PU2DA's trr performance directly supports high-frequency switching applications where minimizing diode-induced loss and EMI is critical.
What package type does PU2DA use, and is it compatible with standard SMT assembly processes?
The PU2DA uses the DO-214AC (SMA) surface-mount package, with matte tin-plated leads rated for solderability per J-STD-002. Its moisture sensitivity level is rated Class 1 per J-STD-020, meaning it can be placed directly onto reflow lines without baking. This makes the PU2DA fully compatible with standard automated SMT assembly, including lead-free reflow profiles.
What is the forward voltage (VF) of PU2DA at 2 A and 25°C, and how does it vary with temperature?
At 2 A and 25°C, the PU2DA exhibits a typical forward voltage of 0.87 V and a maximum of 0.93 V. At elevated temperature (125°C), VF drops to 0.73 V typical due to silicon's negative temperature coefficient. This reduction helps stabilize conduction loss under thermal stress, and the PU2DA's VF behavior is fully characterized in the datasheet's Electrical Specifications table.
Is PU2DA suitable for automotive applications, and what temperature range does it support?
Yes, the PU2DA supports junction temperatures from –55°C to +175°C, covering full automotive ambient requirements including cold-crank and engine-bay environments. While not AEC-Q101 qualified, its robust thermal rating, halogen-free construction, and 200 V VRRM make it suitable for non-safety-critical automotive subsystems such as LED drivers and body-control DC/DC converters-provided system-level qualification is performed. The PU2DA's datasheet explicitly confirms this extended temperature range.
PU2DA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 175°C
PU2DA FAQ
1.How can I place an order for PU2DA through Aetrix?
Please submit a Request for Quotation (RFQ) for PU2DA 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 PU2DA reliable?
The price and inventory of PU2DA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PU2DA is usually 5 days.
3.What payment methods are accepted for PU2DA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PU2DA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PU2DA?
PU2DA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PU2DA 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 PU2DA?
For technical support, including PU2DA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PU2DA requirements.
6.How does Aetrix verify that PU2DA is sourced from the original manufacturer or authorized distributors?
All PU2DA 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 PU2DA meets industry standards.
7.What is the process for return or replacement of PU2DA?
All PU2DA units undergo pre-shipment inspection (PSI). If there is an issue with PU2DA, 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 PU2DA part is unused and in its original packaging.
Return procedure for PU2DA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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