My Inquiry
My Account
Taiwan Semiconductor Corporation PU3DA
- Part No.:
- PU3DA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
PU3DA.pdf
- Description:
- 25NS, 3A, 200V, ULTRA FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:14,735
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PU3DA from Taiwan Semiconductor is a 200V, 3A ultra-fast surface-mount rectifier in DO-214AC (SMA) package, featuring 25ns reverse recovery time, 0.93V max forward voltage at 3A/25°C, and 175°C maximum junction temperature. It serves as a high-efficiency freewheeling or snubber diode in DC/DC converters operating above 100kHz.
For engineers reviewing the PU3DA datasheet, PU3DA pinout, PU3DA application, or PU3DA equivalent, key selection criteria include its 200V VRRM, ultra-fast trr ≤25ns, low RθJA of 76°C/W on standard PCB, and RoHS/halogen-free compliance for industrial power supplies and automotive auxiliary systems.
Technical Context
This single-die planar silicon rectifier delivers ultra-fast switching performance via optimized carrier lifetime control, enabling operation in high-frequency DC/DC topologies where reverse recovery loss must be minimized. Its 23°C/W junction-to-case thermal resistance supports reliable 3A continuous conduction when mounted on 5mm×5mm copper pads.
The device exhibits low Qrr (51nC) and low CJ (47pF), reducing switching noise and EMI in snubber networks. Reverse leakage remains ≤10µA at 125°C, ensuring stable blocking under elevated ambient conditions typical in enclosed power modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse voltage; defines safe blocking capability in 170V AC-derived rails or 150V DC bus applications |
| IF | 3 A - Continuous forward current rating; supports 36W dissipation at 0.93V drop in TO-220-equivalent thermal context |
| trr | 25 ns - Measured at IF=0.5A/IR=1.0A/Irr=0.25A; enables <1MHz switching without excessive turn-off loss |
| VF (max) | 0.93 V - At 3A and 25°C; contributes to <2.8W conduction loss per diode in synchronous rectifier replacement roles |
| RθJA | 76 °C/W - On 5mm×5mm Cu pad; allows ~2.3W power dissipation before reaching 175°C junction limit at 25°C ambient |
| Qrr | 51 nC - Total reverse recovery charge; determines turn-off energy loss in hard-switched flyback or forward converters |
| IFSM | 85 A - Non-repetitive surge rating (8.3ms); withstands inrush currents during cold-start of 12V/24V input power stages |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode-indicating band; matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance. Weight: 0.059g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); requires low-inductance layout to minimize voltage overshoot during turn-off |
| Cathode | Forward current exit / reverse blocking terminal | Connected to output rail or ground return; cathode band orientation must match PCB silkscreen to prevent assembly error |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast recovery (trr ≤25ns) | Reduces turn-off switching loss by >40% vs. standard fast rectifiers in 300kHz–1MHz DC/DC converters |
| Low forward voltage (VF ≤0.93V @3A) | Lowers conduction loss to <2.8W at full load, easing thermal design in space-constrained SMPS layouts |
| High surge rating (IFSM = 85A) | Survives repeated cold-start surges in 24V industrial power inputs without degradation |
| RoHS & halogen-free construction | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green electronics manufacturing |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to reflow; compatible with standard SMT assembly lines without dry-pack handling |
Applications
| Switch-Mode Power Supply Output Rectification | Active Clamp Snubber Network |
|---|---|
Use Scenario: Used as secondary-side rectifier in 12V/3A isolated flyback converter for industrial IoT gateway power supply. IC Role / Device Role / Timing Role: Freewheeling diode conducting during transformer reset phase; blocks reverse voltage during primary switch conduction. Use Value: 25ns trr minimizes voltage spike across primary MOSFET, allowing use of 250V-rated FET instead of 300V part. | Use Scenario: Placed across clamp capacitor and main switch in active-clamp forward converter for telecom base station PSU. IC Role / Device Role / Timing Role: Clamps voltage spike during switch turn-off; conducts brief high-di/dt current pulse during clamp discharge. Use Value: 4.9A peak reverse recovery current (IRM) handles transient clamp currents without oscillation or failure. |
| DC/DC Buck Converter Freewheel Diode | High-Frequency Inductive Load Suppression |
Use Scenario: Freewheel path in 48V-to-12V synchronous buck regulator for automotive body control module. IC Role / Device Role / Timing Role: Provides current continuity during high-side FET off-time; blocks 48V input during on-time. Use Value: 200V VRRM provides 2× safety margin over 48V nominal input, accommodating load dump transients up to 80V. | Use Scenario: Suppresses back-EMF spikes from 24V solenoid valve driver in factory automation PLC output stage. IC Role / Device Role / Timing Role: Transient voltage suppressor clamping inductive kickback; conducts short-duration high-current pulses. Use Value: 85A IFSM withstands repetitive 50A solenoid turn-off surges without parameter drift or bond wire fatigue. |
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, 35ns trr, TO-277 package | Higher voltage rating but slower recovery; larger footprint than SMA | Select when system requires >300V blocking or higher surge immunity, accepting 40% higher turn-off loss |
| ES3D (Vishay) | 200V VRRM, 3A, 35ns trr, DO-214AC package | Same package and voltage rating, but 10ns slower recovery and 0.05V higher VF | Acceptable where cost is critical and 25ns trr is not required for EMI or efficiency targets |
Compared with STTH3L06S and ES3D, PU3DA offers the fastest recovery (25ns) and lowest VF in DO-214AC, making it optimal for high-frequency, high-efficiency DC/DC where thermal headroom and EMI are constrained.
Availability
PU3DA is available at Aetrix Electronics and suitable for high-frequency switching power supplies, DC/DC converters, and snubber networks requiring stable component supply and consistent ultra-fast recovery performance.
Supply support for PU3DA 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 industrial, computing, and consumer markets since 1979.
The PU3DA belongs to TSC's PU3x ultra-fast rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion in compact surface-mount designs where low Qrr and tight VF tolerance are critical.
FAQ
What is the maximum junction temperature rating for PU3DA?
The PU3DA has a maximum junction temperature (TJ) rating of +175°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet revision A2210. This allows operation in high-ambient environments such as enclosed power supplies or under-hood automotive modules when properly heatsinked via PCB copper area.
Does PU3DA have a specified moisture sensitivity level (MSL)?
Yes, PU3DA is rated MSL Level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/60% RH and placed directly into reflow without baking. This eliminates dry-pack requirements and simplifies SMT line integration for high-volume manufacturing of PU3DA-based power boards.
What is the reverse recovery time (trr) test condition for PU3DA?
The PU3DA reverse recovery time is specified as ≤25ns under the condition: IF = 0.5A, IR = 1.0A, Irr = 0.25A, as documented in the Electrical Specifications table of the Taiwan Semiconductor PU3BA–PU3DA datasheet (A2210). This reflects real-world hard-switching behavior in DC/DC converters.
Is PU3DA halogen-free and RoHS compliant?
Yes, PU3DA is both RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the official Taiwan Semiconductor datasheet. The molding compound and plating meet environmental compliance standards required for CE-marked industrial and consumer equipment.
What does the 'x' in PU3xA ordering code represent for PU3DA?
The 'x' in PU3xA denotes the peak reverse voltage rating: for PU3DA, 'D' corresponds to 200V VRRM, distinguishing it from PU3BA (100V) within the same DO-214AC package family. This coding is defined in the Ordering Information section of the Taiwan Semiconductor datasheet A2210.
PU3DA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 175°C
PU3DA FAQ
1.How can I place an order for PU3DA through Aetrix?
Please submit a Request for Quotation (RFQ) for PU3DA 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 PU3DA reliable?
The price and inventory of PU3DA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PU3DA is usually 5 days.
3.What payment methods are accepted for PU3DA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PU3DA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PU3DA?
PU3DA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PU3DA 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 PU3DA?
For technical support, including PU3DA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PU3DA requirements.
6.How does Aetrix verify that PU3DA is sourced from the original manufacturer or authorized distributors?
All PU3DA 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 PU3DA meets industry standards.
7.What is the process for return or replacement of PU3DA?
All PU3DA units undergo pre-shipment inspection (PSI). If there is an issue with PU3DA, 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 PU3DA part is unused and in its original packaging.
Return procedure for PU3DA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PU3DA 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…
