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Taiwan Semiconductor Corporation PUUP8BH
- Part No.:
- PUUP8BH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
PUUP8BH.pdf
- Description:
- DIODE GEN PURP 100V 8A TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:11,783
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Product details
Overview
PUUP8BH from Taiwan Semiconductor is an AEC-Q101-qualified ultra-fast surface-mount rectifier in TO-277A (SMPC4.6U) package, rated for 8 A average forward current, 100 V repetitive peak reverse voltage, and 200 A surge current. It delivers low forward voltage (0.88 V at 8 A, 25°C), 25 ns reverse recovery time, and operates up to 175°C junction temperature - ideal for high-frequency DC/DC converters and snubber circuits in automotive power systems.
For engineers reviewing the PUUP8BH datasheet, PUUP8BH pinout, PUUP8BH application, or PUUP8BH equivalent, key selection criteria include its wettable flank leads for automated optical inspection, JESD201 Class 2 whisker resistance, UL 94V-0 molding compound, and verified performance under 125°C and 175°C thermal stress conditions.
Technical Context
The PUUP8BH employs planar silicon technology to achieve ultra-fast switching with controlled reverse recovery characteristics: trr = 25 ns (IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A) and Qrr = 89 nC. Its single-die configuration supports unidirectional conduction with cathode-band polarity marking.
Thermal design is enabled by RθJL = 2.0°C/W (with ideal heatsink) and RθJA = 48.7°C/W on a 16 mm × 16 mm Cu pad PCB. The device meets moisture sensitivity level 1 per J-STD-020 and is halogen-free per IEC 61249-2-21.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Avg) | 8 A - supports continuous output current in compact DC/DC stages without forced air cooling |
| VRRM | 100 V - withstands transient overvoltage in 12 V–48 V automotive bus applications |
| IFSM (t=8.3ms) | 200 A - handles cold-crank and load-dump surges in vehicle power modules |
| trr | 25 ns - enables >1 MHz switching in resonant and synchronous rectifier topologies |
| VF @ 8A, 25°C | 0.88 V - reduces conduction loss by ~15% vs. standard FRDs at same current |
| RθJL | 2.0 °C/W - allows direct thermal coupling to copper pour or heatsink for high-power density layout |
| TJ max | +175 °C - qualified for under-hood engine control and ADAS power supply environments |
Pinout & Package
Package: TO-277A (SMPC4.6U), surface-mount, single-die ultra-fast rectifier with wettable flank leads, matte tin plating, and cathode band polarity indicator. Weight: 0.104 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Anode connection | Primary current entry point; electrically tied to die anode; requires low-inductance trace routing |
| 2 (Anode) | Anode connection | Dual-anode configuration enables parallel internal paths for lower dynamic resistance |
| 3 (Cathode) | Cathode connection | Common cathode terminal marked by band; serves as output node in buck/flyback secondary-side rectification |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive power electronics per stress test requirements including HTOL, TC, UHAST, and mechanical shock |
| Wettable flank leads | Enables automated solder-joint inspection (AOI) and X-ray verification of reflow quality in SMT lines |
| Low Qrr (89 nC) | Reduces switching losses and EMI generation in high-frequency hard-switched converters |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth under thermal cycling, ensuring long-term reliability in embedded controllers |
| Moisture Sensitivity Level 1 | Zero floor-life restriction - can be stored indefinitely before reflow without baking |
Applications
| Automotive DC/DC Converters | Snubber Circuits in Inverters |
|---|---|
Use Scenario: Step-down conversion from 48 V battery to 12 V auxiliary rail in mild-hybrid vehicles. IC Role / Device Role / Timing Role: Secondary-side ultra-fast rectifier replacing Schottky diodes to reduce reverse recovery loss at 300–500 kHz switching. Use Value: Enables 0.88 V VF and 25 ns trr to cut conduction + switching losses by ~22% versus legacy FRD alternatives. | Use Scenario: RCD snubber network across IGBTs in 3-phase motor drives operating at 10–20 kHz. IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing turn-off energy spikes during IGBT commutation. Use Value: 200 A IFSM and 100 V VRRM withstand repeated surge events while maintaining <31 ns trr for precise timing control. |
| High-Frequency SMPS Outputs | On-Board Charger (OBC) Rectification |
Use Scenario: Output rectification in 1 MHz+ LLC resonant converters for server PSUs and telecom supplies. IC Role / Device Role / Timing Role: Unidirectional current path with minimal stored charge (Qrr = 89 nC) to preserve ZVS operation. Use Value: Low CJ (96 pF) and fast trr ensure minimal capacitive loading and reduced dead-time distortion. | Use Scenario: AC-DC front-end and isolated DC-DC stage rectification in bidirectional OBCs for EVs. IC Role / Device Role / Timing Role: High-reliability rectifier in dual-active-bridge (DAB) secondary side, exposed to repeated thermal cycling. Use Value: AEC-Q101 qualification and 175°C TJ max support 15+ year field life under 100,000+ thermal cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-8EWH01-M3/45 | 100 V VRRM, 8 A IF, but TO-220AC package (through-hole); trr = 35 ns; no AEC-Q101 | Limited to non-automotive industrial SMPS; lacks wettable flanks and MSL1 rating | Choose for cost-sensitive non-automotive designs where board space and AOI are not constraints |
| ON Semiconductor MUR8100CT | 100 V VRRM, 8 A IF, TO-220AB dual-diode package; trr = 50 ns; no AEC-Q101 or wettable flank | Suitable only for lower-frequency (<200 kHz) rectification; higher Qrr increases switching loss | Select when dual common-cathode configuration is required and automotive qualification is unnecessary |
Compared with VS-8EWH01-M3/45 and MUR8100CT, the PUUP8BH provides superior high-frequency efficiency via 25 ns trr and 89 nC Qrr, plus automotive-grade reliability features - making it the only option qualified for under-hood deployment with automated optical inspection capability.
Availability
PUUP8BH is available at Aetrix Electronics and suitable for automotive DC/DC converters, high-frequency SMPS outputs, and snubber circuits requiring stable component supply, AEC-Q101 compliance, and extended thermal operation up to 175°C.
Supply support for PUUP8BH 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 devices, and MOSFETs for industrial and automotive markets.
The PUUP8BH belongs to TSC's AEC-Q101-qualified ultra-fast rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in automotive electrification systems including 48 V architectures and onboard chargers.
FAQ
What is the maximum junction temperature rating for PUUP8BH?
The PUUP8BH has a maximum junction temperature (TJ) of +175°C, validated per AEC-Q101 stress testing. This rating allows sustained operation in under-hood automotive environments where ambient temperatures exceed 125°C. Derating curves confirm usable current capacity down to 0 A at 175°C ambient with appropriate PCB thermal design. The PUUP8BH maintains specified electrical parameters within this full range.
Does PUUP8BH support automated optical inspection (AOI) during SMT assembly?
Yes, the PUUP8BH features wettable flank leads - a defined geometry on the side walls of the TO-277A (SMPC4.6U) package - enabling reliable solder-joint inspection using standard AOI systems. This feature, combined with its MSL1 rating and matte tin plating compliant with J-STD-002, ensures high first-pass yield in high-volume automotive electronics manufacturing. The PUUP8BH is explicitly designed for this purpose.
What is the reverse recovery time (trr) specification for PUUP8BH under typical operating conditions?
The PUUP8BH specifies trr = 25 ns under the condition IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A. At higher current (IF = 1.0 A, di/dt = 50 A/µs, VR = 30 V), trr is 31 ns. These values are measured per JEDEC standards and reflect the device's ultra-fast recovery behavior critical for minimizing switching loss in high-frequency converters. The PUUP8BH consistently achieves these figures across its qualified temperature range.
Is PUUP8BH pin-compatible with other parts in the PUUP8xH series?
No - all PUUP8xH variants (e.g., PUUP8DH) share identical TO-277A (SMPC4.6U) package and pinout (dual anode, single cathode), but differ only in VRRM rating (100 V for PUUP8BH, 200 V for PUUP8DH). Electrical and thermal specs beyond VRRM - including IF, IFSM, VF, trr, and Rθ - are identical across the series. The PUUP8BH and PUUP8DH are mechanically interchangeable but not functionally substitutable without verifying system-level voltage margin.
What packaging and reel quantity is offered for PUUP8BH?
The PUUP8BH is supplied in tape-and-reel format, 6,000 units per reel, compatible with standard SMT pick-and-place equipment. The ordering code PUUP8BH maps directly to the TO-277A (SMPC4.6U) package and reflects the 100 V VRRM variant. Reel dimensions and orientation follow EIA-481-D standards, and the device marking "PU8BH" appears on the top surface per the official marking diagram. Traceability is maintained through date and factory codes.
PUUP8BH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-277, 3-PowerDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 1.05 V @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 25 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 100 V
- Capacitance @ Vr, F:
- 96pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-277A (SMPC)
- Operating Temperature - Junction:
- -55°C ~ 175°C
PUUP8BH FAQ
1.How can I place an order for PUUP8BH through Aetrix?
Please submit a Request for Quotation (RFQ) for PUUP8BH 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 PUUP8BH reliable?
The price and inventory of PUUP8BH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PUUP8BH is usually 5 days.
3.What payment methods are accepted for PUUP8BH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PUUP8BH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PUUP8BH?
PUUP8BH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PUUP8BH 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 PUUP8BH?
For technical support, including PUUP8BH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PUUP8BH requirements.
6.How does Aetrix verify that PUUP8BH is sourced from the original manufacturer or authorized distributors?
All PUUP8BH 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 PUUP8BH meets industry standards.
7.What is the process for return or replacement of PUUP8BH?
All PUUP8BH units undergo pre-shipment inspection (PSI). If there is an issue with PUUP8BH, 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 PUUP8BH part is unused and in its original packaging.
Return procedure for PUUP8BH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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