My Inquiry
My Account
Taiwan Semiconductor Corporation PU3BBH
- Part No.:
- PU3BBH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
PU3BBH.pdf
- Description:
- DIODE GEN PURP 100V 3A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,027
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PU3BBH from Taiwan Semiconductor is a 100V, 3A ultra-fast surface-mount rectifier diode in DO-214AA (SMB) package, featuring 25 ns reverse recovery time, 0.86 V forward voltage at 3.0A/25°C, and AEC-Q101 qualification for automotive-grade reliability. It serves as a high-efficiency freewheeling or snubber diode in DC/DC converters operating at high switching frequencies.
For engineers reviewing the PU3BBH datasheet, PU3BBH pinout, PU3BBH application, or PU3BBH equivalent, key selection criteria include its 100V VRRM, 85A IFSM, 175°C TJMAX, low RθJA of 71°C/W, and AEC-Q101 qualification - all critical for thermal management and automotive power supply design.
Technical Context
The PU3BBH employs planar junction technology to achieve ultra-fast recovery with trr ≤25 ns under IF = 0.5A / IR = 1.0A / Irr = 0.25A conditions, enabling efficient operation in 100–500 kHz DC/DC topologies. Its single-die configuration and DO-214AA package support automated placement and meet JESD201 Class 2 whisker resistance.
Thermal performance is defined for mounting on a 10 mm × 10 mm copper pad: RθJL = 14°C/W and RθJC = 20°C/W confirm robust heat transfer from junction to lead and case. Reverse leakage remains ≤2 µA at 25°C and ≤10 µA at 125°C, supporting stable operation across automotive temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse voltage; defines safe blocking capability in 12–48V bus applications |
| IF | 3 A - Continuous forward current rating; supports sustained conduction in 25–50W DC/DC stages |
| trr | 25 ns - Measured reverse recovery time; enables minimal switching loss in hard-switched SMPS |
| VF @ 3A/25°C | 0.86 V - Forward voltage drop; determines conduction loss and thermal load at full rated current |
| RθJA | 71 °C/W - Junction-to-ambient thermal resistance on standard PCB; sets maximum power dissipation limit |
| IFSM | 85 A - Non-repetitive surge current; withstands inrush and fault transients without failure |
| TJMAX | 175 °C - Maximum junction temperature; allows operation in under-hood automotive environments |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode-indicated band; matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance. Weight: 0.087 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to lower-potential node (e.g., switch node in buck converter); polarity marked by absence of band |
| Cathode | Forward current exit / reverse blocking terminal | Connected to higher-potential node (e.g., output rail); identified by molded cathode band on package body |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements including HTGB, HTRB, and temperature cycling |
| Ultra-fast recovery (trr ≤25 ns) | Reduces switching losses and EMI generation in high-frequency DC/DC converters above 200 kHz |
| Low VF (0.86 V @ 3A) | Minimizes conduction loss and thermal rise in space-constrained power modules |
| Moisture sensitivity level 1 | Enables direct use without baking; compatible with standard SMT reflow profiles |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive for environmentally regulated end equipment |
Applications
| Automotive DC/DC Converters | Industrial Snubber Circuits |
|---|---|
Use Scenario: Step-down conversion in 12V/48V dual-battery automotive systems with synchronous rectification. IC Role / Device Role / Timing Role: Freewheeling diode in buck converter output stage, handling 3A continuous current during high-side FET off-time. Use Value: 25 ns trr and 0.86 V VF reduce switching loss and improve efficiency over legacy fast recovery diodes. | Use Scenario: Clamp network in IGBT-based motor drives to suppress voltage spikes during turn-off. IC Role / Device Role / Timing Role: Ultra-fast clamping diode absorbing inductive energy with minimal reverse recovery overshoot. Use Value: Low Qrr (51 nC) and fast trr limit voltage ringing and protect switching devices from overvoltage stress. |
| High-Frequency SMPS | Telecom Power Supplies |
Use Scenario: Secondary-side rectification in 300–500 kHz isolated flyback or forward converters. IC Role / Device Role / Timing Role: Output rectifier conducting 3A average current with minimal conduction and recovery loss. Use Value: RθJA = 71°C/W enables thermal management on compact PCBs without heatsinks. | Use Scenario: Hold-up and transient suppression in 48V telecom rectifier modules. IC Role / Device Role / Timing Role: Input protection and snubbing diode in AC/DC front-end and DC/DC intermediate bus converters. Use Value: AEC-Q101 qualification and 175°C TJMAX ensure long-term reliability in thermally demanding telecom chassis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L06S (STMicroelectronics) | 600V VRRM, 3A IF, 35 ns trr, TO-277 package | Higher voltage rating but slower recovery; suited for 400V PFC stages, not optimal for 100V high-frequency DC/DC | Select PU3BBH when 100V blocking and <30 ns trr are required in SMB footprint |
| ES3D (ON Semiconductor) | 200V VRRM, 3A IF, 35 ns trr, DO-214AA package | Same package but higher VRRM and slower recovery; higher VF (0.92 V @ 3A) increases conduction loss | PU3BBH offers lower VF and faster trr for efficiency-critical 100V designs |
Compared with STTH3L06S and ES3D, the PU3BBH delivers superior high-frequency efficiency in 100V applications due to its 25 ns trr and 0.86 V VF, while maintaining AEC-Q101 qualification and SMB package compatibility - making it optimal for automotive and industrial DC/DC where thermal and switching performance are prioritized.
Availability
PU3BBH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial snubber circuits, and high-frequency SMPS requiring stable component supply, AEC-Q101 compliance, and consistent DO-214AA (SMB) packaging.
Supply support for PU3BBH 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with global distribution and automotive qualification capabilities.
The PU3BBH belongs to TSC's ultra-fast rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in automotive and industrial environments where fast recovery, low forward drop, and AEC-Q101 validation are mandatory.
FAQ
What is the peak repetitive reverse voltage rating for PU3BBH?
The PU3BBH has a peak repetitive reverse voltage (VRRM) rating of 100 V, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet. This defines the maximum reverse voltage the device can block repeatedly without breakdown. Exceeding this value risks avalanche failure or permanent degradation of the PN junction in the PU3BBH.
Is PU3BBH qualified for automotive applications?
Yes, the PU3BBH is AEC-Q101 qualified, confirming its suitability for automotive power electronics. This qualification includes stress testing for high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling. The PU3BBH's 175°C TJMAX and robust thermal resistance further support under-hood deployment.
What is the reverse recovery time of PU3BBH and how is it measured?
The PU3BBH reverse recovery time (trr) is specified as ≤25 ns under test conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is measured using standardized double-pulse test methodology and reflects the diode's ability to transition from conduction to blocking state - a critical parameter for minimizing switching loss in high-frequency PU3BBH-based converters.
Does PU3BBH have a halogen-free and RoHS-compliant construction?
Yes, the PU3BBH uses halogen-free molding compound per IEC 61249-2-21 and is fully RoHS compliant. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the entire assembly passes JESD201 Class 2 whisker testing. These material attributes ensure environmental compliance and long-term reliability in PU3BBH-powered end equipment.
What is the thermal resistance from junction to ambient for PU3BBH?
The PU3BBH has a junction-to-ambient thermal resistance (RθJA) of 71°C/W when mounted on a standard 10 mm × 10 mm copper pad PCB, as defined in the thermal performance section of the datasheet. This value directly determines the maximum allowable power dissipation before exceeding the 175°C junction limit - a key constraint in thermal design of PU3BBH-based power stages.
PU3BBH 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):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 930 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 25 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 100 V
- Capacitance @ Vr, F:
- 47pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 175°C
PU3BBH FAQ
1.How can I place an order for PU3BBH through Aetrix?
Please submit a Request for Quotation (RFQ) for PU3BBH 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 PU3BBH reliable?
The price and inventory of PU3BBH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PU3BBH is usually 5 days.
3.What payment methods are accepted for PU3BBH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PU3BBH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PU3BBH?
PU3BBH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PU3BBH 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 PU3BBH?
For technical support, including PU3BBH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PU3BBH requirements.
6.How does Aetrix verify that PU3BBH is sourced from the original manufacturer or authorized distributors?
All PU3BBH 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 PU3BBH meets industry standards.
7.What is the process for return or replacement of PU3BBH?
All PU3BBH units undergo pre-shipment inspection (PSI). If there is an issue with PU3BBH, 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 PU3BBH part is unused and in its original packaging.
Return procedure for PU3BBH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PU3BBH Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
