My Inquiry
My Account
Taiwan Semiconductor Corporation PU3BCH
- Part No.:
- PU3BCH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
PU3BCH.pdf
- Description:
- DIODE GEN PURP 100V 3A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,423
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PU3BCH from Taiwan Semiconductor is a 100V, 3A ultra-fast surface-mount rectifier diode in DO-214AB (SMC) package, featuring 25ns reverse recovery time, 0.86V forward voltage at 3A/25°C, and AEC-Q101 qualification for automotive-grade reliability. It serves as a high-efficiency freewheeling or snubber diode in DC/DC converters and high-frequency switching power supplies.
For engineers reviewing the PU3BCH datasheet, PU3BCH pinout, PU3BCH application, or PU3BCH equivalent, key selection criteria include its 100V VRRM, 85A IFSM, 175°C TJMAX, low RθJL of 14°C/W, and AEC-Q101 qualification - critical for automotive and industrial power conversion designs requiring robust transient handling and thermal performance.
Technical Context
The PU3BCH employs planar silicon technology to achieve ultra-fast recovery with trr ≤25ns under IF = 0.5A / IR = 1.0A / Irr = 0.25A conditions and Qrr = 51nC, enabling efficient operation in hard-switched topologies. Its single-die configuration and DO-214AB package support automated placement and meet JESD201 Class 2 whisker resistance.
Thermal design is enabled by validated RθJL = 14°C/W and RθJA = 58°C/W on a 16mm × 16mm Cu pad PCB, while the cathode-band polarity marking and matte tin-plated leads ensure reliable solderability per J-STD-002 and moisture sensitivity level 1 compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse voltage before breakdown; defines safe operating range in 12–48V bus applications |
| IF | 3 A continuous - Rated average forward current at TA = 75°C; supports compact 3A DC/DC output stages |
| trr | 25 ns - Measured at IF = 0.5A, IR = 1.0A, Irr = 0.25A; enables >500 kHz switching without excessive switching loss |
| VF | 0.86 V max at IF = 3A, TJ = 25°C - Low conduction loss improves efficiency in high-duty-cycle rectification |
| IFSM | 85 A peak - Surge rating for 8.3ms half-sine; handles inrush and fault currents in automotive power modules |
| TJMAX | 175 °C - Junction temperature limit allowing operation in under-hood or enclosed industrial environments |
| RθJL | 14 °C/W - Junction-to-lead thermal resistance; enables direct heat transfer to PCB copper for passive thermal management |
Pinout & Package
DO-214AB (SMC) surface-mount package with molded plastic case rated UL 94V-0, matte tin-plated leads, and cathode polarity indicated by a band on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); requires adequate copper pour for thermal relief |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connected to higher-potential rail (e.g., output capacitor positive); cathode band must align with PCB silkscreen polarity mark |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements - enables use in engine control, ADAS, and infotainment power rails |
| Ultra-fast recovery (trr ≤25 ns) | Minimizes reverse recovery charge (Qrr = 51 nC), reducing EMI and switching losses in high-frequency SMPS |
| Low VF (0.86 V @ 3A) | Reduces conduction loss by ~15% vs. standard fast rectifiers, improving thermal margin in space-constrained layouts |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to reflow; supports standard SMT assembly without process modification |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS directives - required for export to EU, Japan, and China automotive markets |
Applications
| Automotive DC/DC Converters | Industrial Snubber Circuits |
|---|---|
Use Scenario: Step-down conversion in 12V/48V dual-battery systems for ADAS camera modules and radar ECUs. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or asynchronous buck regulators operating at 300–600 kHz. Use Value: 25ns trr and 85A IFSM prevent shoot-through risk and withstand load dump transients up to ISO 7637-2 Pulse 5a. | Use Scenario: Clamp diode in IGBT-based motor drives for HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Fast-recovery snubber diode absorbing inductive energy during IGBT turn-off. Use Value: Low Qrr (51 nC) and 100V VRRM suppress voltage spikes without oscillation, extending IGBT lifetime. |
| High-Frequency Switching Power Supplies | Telecom DC/DC Modules |
Use Scenario: Output rectification in 1 MHz LLC resonant converters for server PSUs and AI accelerators. IC Role / Device Role / Timing Role: Secondary-side rectifier managing 3A continuous output current with minimal voltage drop. Use Value: 0.86V VF at 3A reduces conduction loss by 0.26W vs. legacy 1.1V diodes, lowering thermal stress on PCB copper. | Use Scenario: Isolated bias supply rectification in 48V telecom rectifiers powering baseband units. IC Role / Device Role / Timing Role: Input-stage rectifier handling 3A input current in active clamp forward converters. Use Value: AEC-Q101 qualification and 175°C TJMAX ensure reliability in sealed outdoor enclosures with ambient up to 85°C. |
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, 35ns trr, TO-277 package | Higher voltage rating but slower recovery and larger footprint | Select when system requires >200V reverse blocking; not drop-in due to different package and pinout |
| ES3B (ON Semiconductor) | 100V VRRM, 3A IF, 35ns trr, DO-214AA (SMA) package | Same voltage/current rating but slower recovery and smaller thermal pad area | Acceptable for <300 kHz designs where thermal margin is less constrained; requires layout revision |
Compared with STTH3L06S and ES3B, the PU3BCH delivers superior high-frequency performance (25ns vs. ≥35ns) and automotive-grade reliability (AEC-Q101), while its DO-214AB package provides better thermal dissipation than DO-214AA - making it optimal for compact, high-efficiency 100V power stages.
Availability
PU3BCH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial snubber circuits, and high-frequency switching power supplies requiring stable component supply, AEC-Q101 compliance, and consistent thermal performance across production volumes.
Supply support for PU3BCH 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 devices, rectifiers, and protection components since 1979.
The PU3BCH belongs to TSC's AEC-Q101-qualified ultra-fast rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in automotive and industrial environments where thermal robustness and fast switching are critical.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for PU3BCH?
The PU3BCH has a maximum repetitive peak reverse voltage (VRRM) of 100 V, as specified in the Absolute Maximum Ratings table. This value is fixed for PU3BCH and differs from PU3DCH (200 V). Designers must ensure reverse voltage stresses in the circuit remain below this threshold to avoid breakdown or premature failure of the PU3BCH.
Is PU3BCH qualified for automotive applications?
Yes, PU3BCH is AEC-Q101 qualified, meaning it has passed stress tests including HTSL, TC, AC, and mechanical shock per the AEC-Q101 standard. This qualification confirms its suitability for automotive power electronics such as engine control units, ADAS power supplies, and body electronics - provided operating conditions stay within its rated VRRM, IF, and TJ limits.
What is the forward voltage (VF) of PU3BCH at 3A and 25°C?
The forward voltage of PU3BCH is 0.86 V maximum at IF = 3.0 A and junction temperature TJ = 25°C, per the Electrical Specifications table. At elevated temperatures (e.g., 125°C), VF drops to 0.73 V typical, reflecting the negative temperature coefficient of silicon diodes - an important consideration for thermal stability analysis in the PU3BCH design.
What package type does PU3BCH use, and what are its key mechanical features?
PU3BCH uses the DO-214AB (SMC) surface-mount package. Key mechanical features include UL 94V-0 flammability-rated molding compound, matte tin-plated leads compliant with J-STD-002, polarity indicated by a cathode band, and a weight of approximately 0.200 g. The package supports automated placement and meets JESD201 Class 2 whisker resistance requirements.
What is the reverse recovery time (trr) specification for PU3BCH?
The reverse recovery time (trr) for PU3BCH is 25 ns maximum, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. An alternate test condition (IF = 1.0 A, di/dt = 50 A/µs, VR = 30 V) yields 31 ns typical. These values confirm the PU3BCH's classification as an ultra-fast rectifier suitable for high-frequency switching applications.
PU3BCH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- 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-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 175°C
PU3BCH FAQ
1.How can I place an order for PU3BCH through Aetrix?
Please submit a Request for Quotation (RFQ) for PU3BCH 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 PU3BCH reliable?
The price and inventory of PU3BCH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PU3BCH is usually 5 days.
3.What payment methods are accepted for PU3BCH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PU3BCH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PU3BCH?
PU3BCH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PU3BCH 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 PU3BCH?
For technical support, including PU3BCH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PU3BCH requirements.
6.How does Aetrix verify that PU3BCH is sourced from the original manufacturer or authorized distributors?
All PU3BCH 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 PU3BCH meets industry standards.
7.What is the process for return or replacement of PU3BCH?
All PU3BCH units undergo pre-shipment inspection (PSI). If there is an issue with PU3BCH, 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 PU3BCH part is unused and in its original packaging.
Return procedure for PU3BCH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PU3BCH 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…
