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Taiwan Semiconductor Corporation PU2BAH
- Part No.:
- PU2BAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
PU2BAH.pdf
- Description:
- DIODE GEN PURP 100V 2A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,410
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Product details
Overview
PU2BAH from Taiwan Semiconductor is a 2A, 100V ultra-fast surface-mount rectifier diode in DO-214AC (SMA) package, featuring 25ns reverse recovery time, 0.87V forward voltage at 2A/25°C, and AEC-Q101 qualification for automotive-grade reliability in high-frequency switching and snubber circuits.
For engineers reviewing the PU2BAH datasheet, PU2BAH pinout, PU2BAH application, or PU2BAH equivalent, key selection criteria include its 100V VRRM rating, 50A IFSM surge capability, junction-to-lead thermal resistance of 18°C/W, and compliance with JESD201 Class 2 whisker testing and RoHS/halogen-free requirements.
Technical Context
This ultra-fast rectifier uses planar silicon technology to achieve low forward voltage and fast reverse recovery-critical for minimizing switching losses in DC/DC converters operating above 100kHz. Its single-die configuration and DO-214AC package support automated placement and high thermal performance on standard PCB copper pads.
The device operates across –55°C to +175°C junction temperature range, with reverse leakage limited to 2µA at 25°C and 10µA at 125°C, and exhibits 33pF junction capacitance at 1MHz/4V-enabling stable operation in high-speed snubber networks and resonant topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse voltage before breakdown; defines safe blocking capability in 100V bus applications |
| IF | 2 A - Continuous average forward current; supports sustained conduction in compact power supplies |
| trr | 25 ns - Reverse recovery time at IF=0.5A/IR=1.0A/Irr=0.25A; enables efficient operation in >200kHz switching circuits |
| VF @ 2A/25°C | 0.87 V - Forward voltage drop; determines conduction loss and thermal load under full rated current |
| RθJL | 18 °C/W - Junction-to-lead thermal resistance; allows direct heat transfer to PCB copper, critical for thermal management without heatsinks |
| Qrr | 31 nC - Reverse recovery charge; directly impacts switching loss and EMI in hard-switched topologies |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test standard; required for under-hood and ADAS power stages |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, single-anode/single-cathode configuration. Cathode indicated by band. Matte tin-plated leads, JEDEC-compliant footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., switch node in buck converter); must handle 2A continuous and 50A surge |
| Cathode | Forward current exit / reverse blocking terminal | Connected to higher-potential rail; blocks up to 100V reverse voltage and sustains <2µA leakage at 25°C |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast recovery | 25ns trr enables use in >200kHz SMPS without excessive switching loss or ringing |
| AEC-Q101 qualification | Validated for automotive temperature cycling, HTRB, and UHAST-supports engine control and lighting modules |
| Low VF at high temperature | 0.73V @ 2A/125°C reduces thermal runaway risk in enclosed industrial power supplies |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU Directive 2011/65/EU for green manufacturing and end-of-life handling |
| Moisture sensitivity level 1 | No bake requirement prior to reflow; compatible with standard SMT assembly lines without special handling |
Applications
| Automotive LED Driver | Industrial DC/DC Converter |
|---|---|
Use Scenario: High-side buck LED driver in headlamp module with 100V battery transients. IC Role / Device Role / Timing Role: Output rectifier in synchronous buck stage, clamping flyback energy during high dv/dt transients. Use Value: 100V VRRM withstands load-dump spikes; 25ns trr minimizes switching noise coupling into CAN/LIN buses. | Use Scenario: 48V-to-12V isolated DC/DC supply for PLC I/O modules. IC Role / Device Role / Timing Role: Secondary-side ultra-fast rectifier in forward or active-clamp topology. Use Value: 0.87V VF at 2A lowers conduction loss vs. standard FRDs; RθJL = 18°C/W enables 2A operation on 5mm×5mm Cu pad without thermal vias. |
| Snubber Network | High-Frequency Inverter Gate Clamp |
Use Scenario: RCD snubber across MOSFET in 300kHz LLC resonant converter. IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing turn-off energy from transformer leakage inductance. Use Value: 31nC Qrr limits snubber dissipation; 33pF CJ stabilizes voltage rise rate without oscillation. | Use Scenario: Active gate clamp protecting SiC MOSFET gates during overvoltage events. IC Role / Device Role / Timing Role: Ultra-fast clamping diode shunting transient gate voltage spikes back to source. Use Value: 25ns trr ensures sub-30ns response to >10kV/µs dv/dt; AEC-Q101 grade assures reliability in traction inverter gate drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R010DJF | 100V VRRM, 2A IF, 20ns trr, DO-214AC, but not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial only | Select when AEC-Q101 is not required and faster trr is prioritized |
| MBR2100F | 100V VRRM, 2A IF, Schottky architecture, VF ≈ 0.85V, but TJ max = 150°C and no AEC-Q101 | Lower VF but higher leakage (>100µA @ 125°C); unsuitable for high-temp automotive | Choose only for ambient-temp-limited commercial designs where leakage is non-critical |
Compared with STTH2R010DJF and MBR2100F, PU2BAH uniquely combines AEC-Q101 qualification, 175°C junction rating, and 25ns trr in DO-214AC-making it the only option qualified for under-hood automotive rectification where reliability and thermal margin are mandatory.
Availability
PU2BAH is available at Aetrix Electronics and suitable for automotive LED drivers, industrial DC/DC converters, snubber networks, and high-frequency inverter gate clamp circuits requiring stable component supply and long-term lifecycle assurance.
Supply support for PU2BAH 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 automotive, industrial, and consumer markets since 1979.
PU2BAH belongs to TSC's AEC-Q101-qualified ultra-fast rectifier family, engineered specifically for high-efficiency, high-reliability power conversion in automotive and harsh-environment industrial systems.
FAQ
What is the maximum junction temperature rating for PU2BAH?
The PU2BAH has a maximum junction temperature (TJ MAX) of +175°C, validated per AEC-Q101 stress testing. This rating allows reliable operation in under-hood automotive environments and high-ambient industrial enclosures. The device maintains specified electrical parameters-including 25ns trr and <2µA IR-at temperatures up to 125°C, with derating applied beyond that per the forward current derating curve in the datasheet. PU2BAH's thermal design leverages RθJL = 18°C/W for efficient heat transfer to the PCB lead frame.
Is PU2BAH pin-compatible with other DO-214AC rectifiers like MUR220 or STTH2R010?
PU2BAH uses the standard DO-214AC (SMA) package with anode/cathode polarity marked by a cathode band, matching mechanical footprint and solder pad layout of MUR220 and STTH2R010. However, it is not a drop-in replacement due to differences in trr (25ns vs. 35ns for MUR220), Qrr (31nC vs. 50nC), and AEC-Q101 qualification-PU2BAH is qualified while the others are not. Layout reuse is possible, but system-level validation is required for automotive use cases.
Does PU2BAH meet halogen-free and RoHS requirements?
Yes, PU2BAH is halogen-free per IEC 61249-2-21 and RoHS compliant per EU Directive 2011/65/EU. The molding compound is UL 94V-0 rated, and terminals are matte tin-plated for solderability per J-STD-002. These certifications are confirmed in the official Taiwan Semiconductor product specification document C2110 and verified through third-party material declarations. PU2BAH supports green manufacturing and environmentally compliant end-of-life processing.
What is the reverse recovery charge (Qrr) of PU2BAH, and why does it matter?
PU2BAH has a typical reverse recovery charge (Qrr) of 31nC, measured under IF = 2.0A, di/dt = 200A/µs, VR = 100V. Qrr directly contributes to switching losses and EMI generation during turn-off-lower values reduce power dissipation in high-frequency converters and minimize voltage overshoot in snubberless designs. In a 300kHz DC/DC stage, PU2BAH's 31nC Qrr yields ~18% lower turn-off loss than comparable rectifiers with Qrr > 37nC, improving overall efficiency and thermal margin.
Can PU2BAH be used in place of PU2DAH in a 100V design?
PU2BAH is rated for 100V VRRM and PU2DAH for 200V VRRM-so PU2BAH is appropriate only where peak reverse voltage remains ≤100V. Substituting PU2BAH for PU2DAH in a 200V circuit risks catastrophic failure due to reverse breakdown. Both share identical package (DO-214AC), thermal specs (RθJL = 18°C/W), and AEC-Q101 qualification, but their voltage ratings are fixed per part number. PU2BAH marking code is "PU2BA", confirming its 100V designation per Taiwan Semiconductor's ordering matrix.
PU2BAH 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):
- 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:
- 33pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 175°C
PU2BAH FAQ
1.How can I place an order for PU2BAH through Aetrix?
Please submit a Request for Quotation (RFQ) for PU2BAH 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 PU2BAH reliable?
The price and inventory of PU2BAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PU2BAH is usually 5 days.
3.What payment methods are accepted for PU2BAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PU2BAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PU2BAH?
PU2BAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PU2BAH 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 PU2BAH?
For technical support, including PU2BAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PU2BAH requirements.
6.How does Aetrix verify that PU2BAH is sourced from the original manufacturer or authorized distributors?
All PU2BAH 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 PU2BAH meets industry standards.
7.What is the process for return or replacement of PU2BAH?
All PU2BAH units undergo pre-shipment inspection (PSI). If there is an issue with PU2BAH, 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 PU2BAH part is unused and in its original packaging.
Return procedure for PU2BAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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