My Inquiry
My Account
Taiwan Semiconductor Corporation PU4DBH
- Part No.:
- PU4DBH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
PU4DBH.pdf
- Description:
- DIODE GEN PURP 200V 4A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,249
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PU4DBH from Taiwan Semiconductor is a 200V, 4A ultra-fast surface-mount rectifier diode in DO-214AA (SMB) package, featuring 25 ns reverse recovery time, 0.84 V forward voltage at 4A/25°C, and AEC-Q101 qualification for automotive-grade reliability. It serves as a primary output rectifier in high-frequency DC/DC converters.
For engineers reviewing the PU4DBH datasheet, PU4DBH pinout, PU4DBH application, or PU4DBH equivalent, key selection criteria include its 200V repetitive peak reverse voltage, 130A surge current rating, thermal resistance (RθJL = 13°C/W), and suitability for snubber circuits and automated SMT assembly.
Technical Context
The PU4DBH employs planar junction technology to achieve low forward voltage drop and fast switching performance. Its 25 ns reverse recovery time and 57 nC reverse recovery charge support operation in high-frequency (>100 kHz) power topologies where switching losses must be minimized.
Thermally, it delivers RθJL = 13°C/W and RθJA = 69°C/W on a 10 mm × 10 mm copper pad, enabling reliable 4A continuous conduction at up to 175°C junction temperature. The device is moisture-sensitive level 1 and halogen-free per IEC 61249-2-21.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse blocking voltage; defines safe operating range in 200V-rated DC/DC outputs or snubbers |
| IF | 4 A - Continuous forward current rating; supports 4A steady-state output rectification with derating above 75°C ambient |
| trr | 25 ns - Measured at IF = 0.5A, IR = 1.0A, Irr = 0.25A; enables efficient operation in >500 kHz switching converters |
| VF @ 4A, 25°C | 0.84 V (typ), 0.93 V (max) - Directly determines conduction loss and thermal load in high-current paths |
| RθJL | 13 °C/W - Junction-to-lead thermal resistance; allows direct solder-pad thermal path design without heatsink for moderate power levels |
| Qrr | 57 nC - Reverse recovery charge; quantifies turn-off switching loss and EMI generation in hard-switched topologies |
| AEC-Q101 | Qualified - Confirmed reliability for automotive underhood applications including engine control and ADAS power supplies |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, single-die configuration with cathode band polarity marking. Matte tin-plated leads, J-STD-002 solderable, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., transformer secondary center-tap or switch node) |
| Cathode | Forward current exit / reverse blocking terminal | Connected to output rail; cathode band identifies this terminal visually and on PCB silkscreen |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast recovery (trr ≤ 25 ns) | Reduces switching loss and diode-induced ringing in high-frequency SMPS designs |
| AEC-Q101 qualification | Validated for automotive temperature cycling, humidity, and mechanical stress per JEDEC standards |
| Low VF (0.84 V @ 4A) | Minimizes conduction loss and improves efficiency in 12–48V output DC/DC stages |
| DO-214AA (SMB) package | Standardized footprint compatible with automated pick-and-place; enables high-density board layout |
| RθJL = 13°C/W | Enables direct thermal coupling to PCB copper, simplifying thermal management vs. TO-220 or DPAK alternatives |
Applications
| Automotive DC/DC Converters | High-Frequency Switch-Mode Power Supplies |
|---|---|
Use Scenario: 12V-to-5V/3.3V buck converter in engine control unit (ECU) with 300 kHz switching frequency. IC Role / Device Role / Timing Role: Output rectifier handling 4A continuous current with minimal voltage drop and fast turn-off. Use Value: 25 ns trr and 0.84 V VF reduce both conduction and switching losses, improving efficiency by ~1.2% over standard FRD equivalents. | Use Scenario: Secondary-side synchronous rectification replacement in telecom 48V input isolated flyback supply. IC Role / Device Role / Timing Role: Ultra-fast freewheeling diode in active clamp or resonant snubber network. Use Value: 57 nC Qrr and 130A IFSM ensure robust transient handling during voltage spikes without avalanche failure. |
| Industrial Motor Drive Snubbers | LED Driver Secondary Rectification |
Use Scenario: RC snubber across IGBT collector-emitter in 3-phase inverter stage operating at 10–20 kHz. IC Role / Device Role / Timing Role: Fast-recovery clamping diode absorbing inductive energy during IGBT turn-off. Use Value: 200V VRRM withstands 1.5× bus voltage transients; 25 ns trr prevents re-conduction during critical dead-time intervals. | Use Scenario: Output rectifier in constant-current LED driver with 24V output and 2A load. IC Role / Device Role / Timing Role: Primary unidirectional current path delivering stable DC to LED string. Use Value: AEC-Q101 qualification ensures long-term reliability in thermally stressed outdoor lighting enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH4L06DJF | 600V VRRM, 4A IF, 35 ns trr, TO-277 package | Higher voltage rating but slower recovery; larger footprint than SMB | Preferred when system requires >200V blocking margin but can accept higher switching loss |
| ES4D-E3/57T | 200V VRRM, 4A IF, 30 ns trr, DO-214AA package, no AEC-Q101 | Same package and voltage rating, but lacks automotive qualification and has higher VF (0.92 V) | Cost-sensitive industrial use where AEC-Q101 is not mandated |
Compared with STTH4L06DJF and ES4D-E3/57T, the PU4DBH uniquely combines 200V rating, 25 ns recovery, AEC-Q101 qualification, and DO-214AA packaging-making it optimal for space-constrained, automotive-grade DC/DC and snubber designs requiring verified reliability.
Availability
PU4DBH is available at Aetrix Electronics and suitable for automotive power conversion, industrial motor drive snubbers, and high-frequency LED driver rectification requiring stable component supply and full traceability.
Supply support for PU4DBH 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.
The PU4DBH 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 and thermal robustness are critical.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) of the PU4DBH?
The PU4DBH has a VRRM of 200 V, as confirmed in the Absolute Maximum Ratings table. This rating is specific to the PU4DBH variant and distinguishes it from the 100V PU4BBH. It defines the highest reverse voltage the PU4DBH can block repeatedly without breakdown under normal operating conditions.
Is the PU4DBH qualified for automotive applications?
Yes, the PU4DBH is AEC-Q101 qualified, as explicitly stated in the FEATURES section. This qualification covers stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing-validating the PU4DBH for under-hood automotive power systems such as ECUs and ADAS modules.
What is the forward voltage (VF) of the PU4DBH at 4A and 25°C?
The PU4DBH exhibits a typical forward voltage of 0.84 V and a maximum of 0.93 V at 4A and 25°C, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and directly impacts conduction loss and thermal design in the PU4DBH's target applications.
What package does the PU4DBH use, and is it compatible with automated assembly?
The PU4DBH uses the DO-214AA (SMB) surface-mount package, with matte tin-plated leads compliant with J-STD-002 solderability requirements. Its standardized footprint and moisture sensitivity level 1 classification make the PU4DBH fully compatible with high-speed automated placement and reflow processes.
How does the PU4DBH's reverse recovery time compare to standard fast recovery diodes?
The PU4DBH achieves a reverse recovery time of 25 ns under specified test conditions (IF = 0.5A, IR = 1.0A, Irr = 0.25A), which is significantly faster than standard fast recovery diodes (typically 50–100 ns). This enables the PU4DBH to minimize switching loss and EMI in high-frequency power converters where rapid turn-off is essential.
PU4DBH 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):
- 4A
- Voltage - Forward (Vf) (Max) @ If:
- 930 mV @ 4 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 25 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 200 V
- Capacitance @ Vr, F:
- 78pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 175°C
PU4DBH FAQ
1.How can I place an order for PU4DBH through Aetrix?
Please submit a Request for Quotation (RFQ) for PU4DBH 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 PU4DBH reliable?
The price and inventory of PU4DBH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PU4DBH is usually 5 days.
3.What payment methods are accepted for PU4DBH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PU4DBH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PU4DBH?
PU4DBH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PU4DBH 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 PU4DBH?
For technical support, including PU4DBH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PU4DBH requirements.
6.How does Aetrix verify that PU4DBH is sourced from the original manufacturer or authorized distributors?
All PU4DBH 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 PU4DBH meets industry standards.
7.What is the process for return or replacement of PU4DBH?
All PU4DBH units undergo pre-shipment inspection (PSI). If there is an issue with PU4DBH, 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 PU4DBH part is unused and in its original packaging.
Return procedure for PU4DBH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PU4DBH 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…
