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Taiwan Semiconductor Corporation PU2BFS
- Part No.:
- PU2BFS
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
PU2BFS.pdf
- Description:
- 25NS, 2A, 100V, ULTRA FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:25,910
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Product details
Overview
PU2BFS from Taiwan Semiconductor is a 2 A, 100 V ultra-fast surface-mount rectifier diode in SOD-128 package, featuring 25 ns reverse recovery time, 0.87 V forward voltage at 2 A/25°C, and 50 A surge current capability - deployed in high-frequency DC/DC converters and snubber circuits.
For engineers reviewing the PU2BFS datasheet, PU2BFS pinout, PU2BFS application, or PU2BFS equivalent, key selection criteria include its 100 V repetitive peak reverse voltage, 17 °C/W junction-to-lead thermal resistance, 32 pF junction capacitance at 4 V, and compatibility with automated placement on high-density PCBs.
Technical Context
This single-die silicon rectifier uses planar technology to achieve ultra-fast switching performance with low conduction loss. Its 25 ns trr (IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A) and 31 nC reverse recovery charge support operation in high-frequency power conversion topologies above 100 kHz.
The device operates across –55°C to +175°C junction temperature range and delivers stable reverse leakage (<2 µA at 25°C, <10 µA at 125°C) under rated 100 V reverse bias. Thermal design is enabled by validated RθJL = 17 °C/W on 5 mm × 5 mm Cu pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - maximum repetitive reverse voltage the diode blocks without breakdown |
| IF | 2 A - continuous average forward current rating at case temperature ≤ 115°C |
| trr | 25 ns - reverse recovery time enabling efficient operation in >100 kHz switching circuits |
| VF @ 2 A, 25°C | 0.87 V - forward voltage drop determining conduction loss and thermal load at full rated current |
| RθJL | 17 °C/W - junction-to-lead thermal resistance used to calculate die temperature from lead temperature measurement |
| CJ @ 4 V | 32 pF - junction capacitance affecting high-frequency switching noise and resonant behavior |
| Qrr | 31 nC - reverse recovery charge directly influencing turn-off losses and EMI generation |
Pinout & Package
Package: SOD-128 - surface-mount, molded plastic case with matte tin-plated leads, polarity indicated by cathode band, UL 94V-0 rated, weight ≈ 0.028 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of circuit; must handle 2 A continuous and 50 A surge |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; withstands 100 V reverse bias and defines polarity for PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast recovery | 25 ns trr minimizes switching loss and enables use in high-frequency DC/DC stages |
| Low forward voltage | 0.87 V at 2 A/25°C reduces conduction loss and improves system efficiency |
| High surge robustness | 50 A IFSM (8.3 ms sine) supports inrush and transient overload conditions |
| Automated assembly ready | Moisture sensitivity level 1 (J-STD-020) and matte tin plating ensure reliable reflow soldering |
| High-temperature operation | 175°C max junction temperature allows deployment in thermally constrained industrial environments |
Applications
| Switch-Mode Power Supply Output Rectification | Active Clamp Snubber Circuit |
|---|---|
Use Scenario: Used as secondary-side rectifier in isolated flyback or forward converters operating at 100–500 kHz. IC Role / Device Role / Timing Role: Unidirectional current path converting high-frequency AC to DC; timing-critical due to fast voltage reversal during switch transitions. Use Value: 25 ns trr and 31 nC Qrr reduce turn-off loss and voltage overshoot, improving efficiency and reliability. | Use Scenario: Placed across MOSFET drain-source to absorb inductive energy during turn-off in hard-switched topologies. IC Role / Device Role / Timing Role: Fast-recovery clamp diode that conducts only during brief energy transfer intervals. Use Value: Low 0.87 V VF limits clamping voltage rise while 100 V VRRM ensures safe margin over expected drain spikes. |
| High-Frequency DC/DC Converter | EMI-Sensitive Industrial Control Power Rail |
Use Scenario: Output rectifier in non-isolated buck-derived point-of-load regulators running at ≥300 kHz. IC Role / Device Role / Timing Role: High-speed unidirectional switch synchronizing with PWM controller; critical for minimizing ringing. Use Value: 32 pF CJ and fast recovery suppress parasitic resonance, reducing conducted EMI at switching node. | Use Scenario: Input rectification stage for 24 V industrial control modules requiring low-noise, long-life power input. IC Role / Device Role / Timing Role: Primary AC-to-DC interface handling line transients and sustained load current. Use Value: 175°C TJMAX and JESD201 Class 2 whisker resistance ensure reliability in sealed, convection-cooled enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R010S | 100 V VRRM, 2 A IF, 20 ns trr, TO-277A package (larger footprint) | Higher thermal mass but requires larger PCB area; same voltage/current rating | Preferred where board space permits and slightly faster recovery is needed |
| MBR2100F | 100 V VRRM, 2 A IF, 35 ns trr, SOD-128 package, Schottky construction | Lower VF (~0.75 V), but higher leakage (>100 µA at 125°C); no minority-carrier storage | Consider when lowest conduction loss is prioritized over leakage or high-temp stability |
Compared with STTH2R010S and MBR2100F, PU2BFS offers balanced trade-offs: SOD-128 footprint like MBR2100F but with lower leakage and higher TJMAX; faster than MBR2100F in recovery but less aggressive than STTH2R010S - ideal for compact, thermally demanding 100 kHz–1 MHz designs.
Availability
PU2BFS is available at Aetrix Electronics and suitable for high-frequency DC/DC converters, active clamp snubbers, and industrial control power rails requiring stable component supply and long-term manufacturability.
Supply support for PU2BFS 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 power and signal conditioning markets since 1979.
The PU2BFS belongs to TSC's ultra-fast rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion in space-constrained industrial and computing applications.
FAQ
What is the maximum repetitive peak reverse voltage rating for PU2BFS?
The PU2BFS has a maximum repetitive peak reverse voltage (VRRM) of 100 V, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet revision A2210. This rating defines the highest reverse voltage the PU2BFS can block repeatedly without avalanche breakdown under normal operating conditions.
What is the forward voltage drop of PU2BFS at full rated current?
The PU2BFS exhibits a typical forward voltage (VF) of 0.87 V at 2 A and 25°C, with a maximum of 0.93 V under the same conditions. This value is measured with pulse width = 0.3 ms and is critical for calculating conduction losses in the PU2BFS during continuous operation.
Does PU2BFS have a specified reverse recovery time, and under what test conditions?
Yes, PU2BFS has a reverse recovery time (trr) of 25 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. An alternative condition yields 30 ns (IF = 1.0 A, di/dt = 50 A/µs, VR = 30 V), confirming its ultra-fast classification per the PU2BFS datasheet.
What package type does PU2BFS use, and what are its key mechanical attributes?
PU2BFS uses the SOD-128 surface-mount package: molded UL 94V-0 compound, matte tin-plated leads compliant with J-STD-002, polarity marked by cathode band, and moisture sensitivity level 1 per J-STD-020. Its approximate weight is 0.028 g, and it is qualified for automated placement.
What is the maximum junction temperature specification for PU2BFS?
The PU2BFS is rated for a maximum junction temperature (TJ) of +175°C, with a storage temperature range of –55°C to +175°C. This high TJMAX enables reliable operation in thermally demanding industrial environments where ambient temperatures exceed 85°C.
PU2BFS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-128
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 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 @ 100 V
- Capacitance @ Vr, F:
- 32pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-128
- Operating Temperature - Junction:
- -55°C ~ 175°C
PU2BFS FAQ
1.How can I place an order for PU2BFS through Aetrix?
Please submit a Request for Quotation (RFQ) for PU2BFS 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 PU2BFS reliable?
The price and inventory of PU2BFS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PU2BFS is usually 5 days.
3.What payment methods are accepted for PU2BFS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PU2BFS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PU2BFS?
PU2BFS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PU2BFS 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 PU2BFS?
For technical support, including PU2BFS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PU2BFS requirements.
6.How does Aetrix verify that PU2BFS is sourced from the original manufacturer or authorized distributors?
All PU2BFS 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 PU2BFS meets industry standards.
7.What is the process for return or replacement of PU2BFS?
All PU2BFS units undergo pre-shipment inspection (PSI). If there is an issue with PU2BFS, 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 PU2BFS part is unused and in its original packaging.
Return procedure for PU2BFS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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