My Inquiry
My Account
Taiwan Semiconductor Corporation PU3DBH
- Part No.:
- PU3DBH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
PU3DBH.pdf
- Description:
- DIODE GEN PURP 200V 3A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:1
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PU3DBH from Taiwan Semiconductor is a 200V, 3A ultra-fast surface-mount rectifier in DO-214AA (SMB) 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 operating up to several hundred kHz.
For engineers reviewing the PU3DBH datasheet, PU3DBH pinout, PU3DBH application, or PU3DBH equivalent, key selection criteria include its 200V VRRM, 85A IFSM, 14°C/W RθJL, AEC-Q101 qualification, and DO-214AA mechanical compatibility with automated SMT assembly.
Technical Context
The PU3DBH employs planar silicon technology to achieve ultra-fast switching with low Qrr (51nC) and minimal trr dispersion-23–31ns depending on test conditions. Its thermal design supports 175°C maximum junction temperature and delivers stable performance across -55°C to +175°C ambient range when mounted on standard 10mm × 10mm copper pads.
As a single-die, unidirectional rectifier, it operates with cathode-band polarity indication and exhibits low leakage (<2µA @ 25°C, <10µA @ 125°C) and tight VF matching (0.73V typ @ 3A/125°C), enabling predictable conduction loss in high-frequency power stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse blocking voltage; defines safe DC/peak AC voltage rating in snubber or output rectification. |
| IF | 3 A - Continuous average forward current; rated for PCB-mounted operation with 10mm × 10mm Cu pad. |
| trr | 23–31 ns - Reverse recovery time; enables efficient operation in 100–500 kHz switching topologies with low switching loss. |
| VF @ 3A/25°C | 0.86 V max - Forward voltage drop; determines conduction loss and thermal rise under full-load DC conditions. |
| Qrr | 51 nC - Reverse recovery charge; directly impacts turn-off loss and EMI generation in hard-switched converters. |
| RθJL | 14 °C/W - Junction-to-lead thermal resistance; enables accurate thermal modeling for lead-soldered thermal path in compact layouts. |
| IFSM | 85 A - Non-repetitive surge current (8.3ms); supports robustness against line transients and startup inrush. |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode-indicating band; matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to lower-potential node (e.g., switch node in buck converter or transformer secondary center-tap). |
| Cathode | Forward current exit terminal | Marked by band; connected to higher-potential rail (e.g., output capacitor positive or snubber resistor). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications per stress test requirements including HTOL, TC, HTRB, and UHAST. |
| Ultra-fast trr (23–31 ns) | Reduces turn-off switching loss and dV/dt-induced ringing in high-frequency DC/DC and flyback designs. |
| Low Qrr (51 nC) | Minimizes energy dissipation during reverse recovery, improving efficiency and reducing heatsink requirements. |
| Moisture sensitivity level 1 | Enables direct placement without baking; compatible with standard SMT reflow profiles per J-STD-020. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive; suitable for environmentally regulated industrial and automotive production. |
Applications
| Automotive DC/DC Converters | High-Frequency Snubber Circuits |
|---|---|
Use Scenario: Step-down conversion in 12V/48V dual-battery systems with switching frequencies >200 kHz. IC Role / Device Role / Timing Role: Output rectifier handling continuous 3A load with minimal conduction and recovery loss. Use Value: 0.86V VF and 25ns trr reduce total power loss by ~18% vs. standard fast recovery diodes at 250 kHz. | Use Scenario: Clamp network across MOSFETs in LLC resonant converters to suppress voltage spikes. IC Role / Device Role / Timing Role: Fast-turn-off snubber diode absorbing transient energy during MOSFET turn-off. Use Value: 51nC Qrr and 23ns trr limit snubber dissipation and improve system efficiency over slower alternatives. |
| Industrial SMPS Outputs | UPS Inverter Stage Rectification |
Use Scenario: Secondary-side rectification in telecom-grade 48V output supplies with strict thermal constraints. IC Role / Device Role / Timing Role: Freewheeling diode conducting 3A average current with peak surges up to 85A. Use Value: 14°C/W RθJL enables direct thermal coupling to PCB copper, eliminating need for additional thermal vias in space-constrained modules. | Use Scenario: Bidirectional rectification in online UPS inverters requiring reliable 200V blocking and fast commutation. IC Role / Device Role / Timing Role: Unidirectional power path component handling repetitive 3A DC and transient 85A surges. Use Value: AEC-Q101 qualification ensures long-term reliability under thermal cycling and vibration typical of UPS deployment environments. |
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 | 600V VRRM, 3A IF, 35ns trr, TO-277 package | Higher voltage rating but slower recovery and larger footprint | Select when >200V blocking is required; not drop-in due to different package and pinout. |
| SB3200 | 200V VRRM, 3A IF, 35ns trr, DO-214AA package | Same package and voltage rating but higher VF (0.95V) and slower recovery | Acceptable where cost is prioritized over efficiency; requires layout verification for thermal margin. |
Compared with STTH3L06S and SB3200, the PU3DBH offers superior high-frequency performance (23ns trr, 51nC Qrr) in the same DO-214AA footprint, delivering measurable efficiency gain in 200–500 kHz power stages without PCB redesign.
Availability
PU3DBH is available at Aetrix Electronics and suitable for automotive DC/DC converters, high-frequency snubber networks, and industrial SMPS outputs requiring stable component supply, AEC-Q101 compliance, and consistent ultra-fast switching performance.
Supply support for PU3DBH 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 computing markets since 1979.
The PU3DBH 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 stability and switching speed are critical.
FAQ
What is the maximum junction temperature rating for PU3DBH?
The PU3DBH has a maximum junction temperature (TJ) rating of +175°C, verified per AEC-Q101 stress testing. This allows operation in under-hood automotive environments and high-power-density industrial converters where ambient temperatures exceed 105°C, provided thermal design meets RθJL = 14°C/W limits with adequate PCB copper area.
Is PU3DBH pin-compatible with PU3BBH?
Yes, PU3DBH is mechanically and electrically pin-compatible with PU3BBH - both use identical DO-214AA (SMB) package, anode/cathode terminal configuration, and marking orientation. The only difference is VRRM: 200V for PU3DBH versus 100V for PU3BBH; no PCB or layout change is needed when upgrading voltage rating.
Does PU3DBH meet automotive qualification standards?
Yes, PU3DBH is AEC-Q101 qualified, having passed all required stress tests including high-temperature operating life (HTOL), temperature cycling (TC), high-temperature reverse bias (HTRB), and unbiased highly accelerated stress test (UHAST). This certification confirms suitability for automotive powertrain and body electronics applications.
What is the reverse recovery time specification for PU3DBH?
The PU3DBH reverse recovery time (trr) is specified as 23ns typical and 31ns maximum under IF = 1.0A, di/dt = 50A/µs, VR = 30V conditions. At IF = 0.5A, IR = 1.0A, Irr = 0.25A, trr is 25ns maximum - confirming consistent ultra-fast behavior across operating conditions.
Can PU3DBH be used in reflow soldering processes without moisture preconditioning?
Yes, PU3DBH has Moisture Sensitivity Level (MSL) 1 per J-STD-020, meaning it can be subjected to standard Pb-free reflow profiles (peak 260°C) without prior baking. This eliminates handling overhead and supports high-throughput automated assembly in automotive and industrial manufacturing lines.
PU3DBH 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):
- 200 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 @ 200 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
PU3DBH FAQ
1.How can I place an order for PU3DBH through Aetrix?
Please submit a Request for Quotation (RFQ) for PU3DBH 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 PU3DBH reliable?
The price and inventory of PU3DBH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PU3DBH is usually 5 days.
3.What payment methods are accepted for PU3DBH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PU3DBH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PU3DBH?
PU3DBH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PU3DBH 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 PU3DBH?
For technical support, including PU3DBH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PU3DBH requirements.
6.How does Aetrix verify that PU3DBH is sourced from the original manufacturer or authorized distributors?
All PU3DBH 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 PU3DBH meets industry standards.
7.What is the process for return or replacement of PU3DBH?
All PU3DBH units undergo pre-shipment inspection (PSI). If there is an issue with PU3DBH, 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 PU3DBH part is unused and in its original packaging.
Return procedure for PU3DBH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PU3DBH 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…
