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Taiwan Semiconductor Corporation PU6BB
- Part No.:
- PU6BB
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
PU6BB.pdf
- Description:
- 25NS, 6A, 100V, ULTRA FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:5,895
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Product details
Overview
PU6BB from Taiwan Semiconductor is a 6A, 100V ultra-fast surface-mount rectifier in DO-214AA (SMB) package, featuring 25 ns reverse recovery time, 0.85 V forward voltage at 6A/25°C, and 160 A surge current rating. It serves as a primary output rectifier in high-frequency DC/DC converters requiring low conduction loss and fast switching.
For engineers reviewing the PU6BB datasheet, PU6BB pinout, PU6BB application, or PU6BB equivalent, key selection criteria include its 100 V repetitive peak reverse voltage, 27 ns typical reverse recovery time, 72 nC reverse recovery charge, thermal resistance of 12 °C/W (junction-to-lead), and SMB package compatibility with automated SMT assembly.
Technical Context
The PU6BB employs planar silicon technology to achieve ultra-fast recovery with controlled minority-carrier lifetime, enabling operation in high-frequency switching power supplies up to several hundred kHz. Its single-die configuration and cathode-banded polarity support unidirectional conduction in flyback, forward, and active clamp topologies.
Thermal performance is characterized by RθJL = 12 °C/W on a 10 mm × 10 mm Cu pad, supporting continuous 6 A operation at ≤115 °C lead temperature. Reverse leakage remains ≤2 µA at 25 °C and ≤15 µA at 125 °C under rated 100 V reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in snubber or freewheeling paths |
| IF | 6 A - Continuous average forward current at TL = 115 °C; sets PCB copper area and heatsinking requirements |
| trr | 25–27 ns - Measured reverse recovery time; enables efficient operation in >200 kHz SMPS without excessive switching loss |
| VF @ 6A/25°C | 0.85 V (max) - Forward voltage drop directly impacts conduction loss and thermal rise in high-current outputs |
| Qrr | 72 nC - Reverse recovery charge determines turn-off energy loss and EMI generation in hard-switched circuits |
| RθJL | 12 °C/W - Junction-to-lead thermal resistance; used to calculate junction temperature from measured lead temperature |
| IFSM | 160 A - Non-repetitive surge current (8.3 ms); supports inrush and fault-current handling in power supply inputs |
Pinout & Package
DO-214AA (SMB) surface-mount package with molded epoxy case (UL 94V-0), matte tin-plated leads, and cathode polarity indicated by a band on the cathode end. Weight: 0.088 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., transformer secondary center-tap or switch node in synchronous rectification) |
| Cathode | Forward current exit point; marked with band | Connected to output rail; polarity marking ensures correct orientation during automated placement |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast recovery | 25–27 ns trr minimizes switching loss and di/dt-induced voltage spikes in high-frequency converters |
| Low forward voltage | 0.85 V max at 6A/25°C reduces conduction loss and improves efficiency in 12 V and 24 V output stages |
| High surge capability | 160 A IFSM (8.3 ms) withstands transient overloads without degradation in industrial power supplies |
| SMT-optimized construction | DO-214AA (SMB) footprint and J-STD-002 solderability support high-yield reflow assembly and IPC Class 2 reliability |
Applications
| AC-DC Adapter Output Rectification | DC/DC Converter Freewheeling Diode |
|---|---|
Use Scenario: Secondary-side rectification in compact 65 W laptop adapters operating at 100–300 kHz switching frequency. IC Role / Device Role / Timing Role: Unidirectional current valve converting high-frequency AC from transformer secondary into regulated DC output. Use Value: 27 ns trr and 72 nC Qrr reduce switching loss and EMI compared to standard fast recovery diodes, enabling smaller output filters. | Use Scenario: Freewheeling path in non-isolated buck converter for industrial PLC I/O modules. IC Role / Device Role / Timing Role: Provides low-loss current recirculation path during high-side MOSFET off-time. Use Value: 0.85 V VF at 6A limits conduction loss to <1.1 W, reducing thermal stress on 2-layer PCB layouts. |
| Snubber Network Clamp Diode | Motor Drive Flyback Protection |
Use Scenario: Clamp diode in RCD snubber across MOSFET drain-source in 24 V BLDC motor controller. IC Role / Device Role / Timing Role: Rapidly conducts stored inductive energy during MOSFET turn-off to suppress voltage overshoot. Use Value: 25 ns trr ensures clean clamping action before voltage spike peaks, protecting 100 V-rated MOSFETs. | Use Scenario: Flyback protection diode across relay coil or stepper motor winding in automotive body control module. IC Role / Device Role / Timing Role: Suppresses inductive kickback voltage spikes during coil de-energization. Use Value: 100 V VRRM and 160 A IFSM safely absorb 100 mJ energy pulses without failure under repeated actuation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH6L06D | 6 A / 600 V, 35 ns trr, higher VRRM, TO-277 package | Higher voltage margin but slower recovery; suited for 400 V bus systems | Select when system requires >200 V blocking with moderate switching frequency (<150 kHz) |
| ES6D | 6 A / 200 V, 30 ns trr, same SMB package, higher VF (0.98 V) | Near-identical footprint and voltage rating; slightly higher conduction loss | Acceptable drop-in alternative where 0.13 V higher VF is tolerable in thermal budget |
Compared with STTH6L06D and ES6D, the PU6BB offers the fastest recovery (25–27 ns) and lowest forward voltage (0.85 V) among 100 V-class 6 A SMB rectifiers, making it optimal for high-efficiency, high-frequency DC/DC designs where switching loss dominates thermal design.
Availability
PU6BB is available at Aetrix Electronics and suitable for high-frequency switching power supplies, DC/DC converters, and snubber networks requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing.
Supply support for PU6BB 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 industrial, computing, and consumer markets since 1979.
The PU6BB belongs to TSC's ultra-fast rectifier product line, engineered specifically for high-frequency switching power conversion where low Qrr, tight VF distribution, and robust surge capability are critical.
FAQ
What is the maximum repetitive peak reverse voltage rating for PU6BB?
The PU6BB has a maximum repetitive peak reverse voltage (VRRM) of 100 V, verified per absolute maximum ratings table in the official TSC datasheet Version A2210. This rating defines the highest continuous reverse-bias voltage the device can block without breakdown. Exceeding 100 V risks avalanche failure. The PU6BB is not rated for 200 V operation-that specification applies only to the PU6DB variant.
What is the typical reverse recovery time of PU6BB and how is it measured?
The PU6BB exhibits a typical reverse recovery time (trr) of 27 ns, measured under conditions of IF = 6.0 A, di/dt = 200 A/µs, and VR = 100 V, as specified in the Electrical Specifications table. An alternate test condition (IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A) yields 25 ns. Both values confirm its classification as an ultra-fast rectifier suitable for >200 kHz switching.
Is PU6BB compatible with lead-free reflow soldering processes?
Yes, PU6BB is fully compatible with lead-free reflow soldering. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the DO-214AA (SMB) package is rated for moisture sensitivity level 1 (MSL-1) per J-STD-020-meaning it may be stored indefinitely at ≤30 °C/60% RH without baking prior to assembly.
Does PU6BB have halogen-free and RoHS-compliant construction?
Yes, PU6BB is both RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants, and all homogeneous materials meet EU Directive 2011/65/EU restrictions. This compliance is confirmed in the FEATURES section of the TSC datasheet Version A2210.
What thermal resistance values apply to PU6BB in standard PCB mounting?
When mounted on a 10 mm × 10 mm copper pad per JEDEC test board standard, PU6BB has RθJL = 12 °C/W (junction-to-lead), RθJC = 16 °C/W (junction-to-case), and RθJA = 63 °C/W (junction-to-ambient). These values enable accurate junction temperature estimation using measured lead temperature or ambient conditions in real-world layouts.
PU6BB 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):
- 100 V
- Current - Average Rectified (Io):
- 6A
- Voltage - Forward (Vf) (Max) @ If:
- 940 mV @ 6 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 25 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 100 V
- Capacitance @ Vr, F:
- 105pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 175°C
PU6BB FAQ
1.How can I place an order for PU6BB through Aetrix?
Please submit a Request for Quotation (RFQ) for PU6BB 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 PU6BB reliable?
The price and inventory of PU6BB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PU6BB is usually 5 days.
3.What payment methods are accepted for PU6BB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PU6BB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PU6BB?
PU6BB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PU6BB 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 PU6BB?
For technical support, including PU6BB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PU6BB requirements.
6.How does Aetrix verify that PU6BB is sourced from the original manufacturer or authorized distributors?
All PU6BB 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 PU6BB meets industry standards.
7.What is the process for return or replacement of PU6BB?
All PU6BB units undergo pre-shipment inspection (PSI). If there is an issue with PU6BB, 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 PU6BB part is unused and in its original packaging.
Return procedure for PU6BB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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