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Taiwan Semiconductor Corporation PU1DAH
- Part No.:
- PU1DAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
PU1DAH.pdf
- Description:
- DIODE GEN PURP 200V 1A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,041
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Product details
Overview
PU1DAH from Taiwan Semiconductor is a 1A, 200V ultra-fast surface-mount rectifier diode in DO-214AC (SMA) package, featuring 25 ns reverse recovery time, 0.93 V max forward voltage at 1 A/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 PU1DAH datasheet, PU1DAH pinout, PU1DAH application, or PU1DAH equivalent, key selection criteria include its 200 V repetitive peak reverse voltage, 45 A surge current rating, junction-to-lead thermal resistance of 20 °C/W, and suitability for automated SMT assembly in space-constrained power stages.
Technical Context
The PU1DAH employs planar silicon technology to achieve ultra-fast switching with low stored charge (Qrr = 27 nC) and tightly controlled reverse recovery behavior (trr ≤ 25 ns under IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A). Its single-die configuration and DO-214AC package support high thermal dissipation via PCB copper pads.
Designed for high-frequency operation, the PU1DAH delivers stable forward voltage (VF = 0.70 V typ at 1 A/125°C) and low leakage (IR ≤ 10 µA at 125°C), enabling efficient energy transfer in flyback and synchronous rectification auxiliary paths where fast turn-off minimizes switching losses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - maximum repetitive reverse blocking voltage; defines safe operating range in 170 VAC-derived DC bus or 100 VDC snubber circuits |
| IF | 1 A continuous - average forward current rating at TA = 75°C on standard PCB; supports compact 12–24 V output DC/DC stages |
| trr | ≤25 ns - reverse recovery time under specified test conditions; enables reliable operation up to ~500 kHz switching frequencies |
| Qrr | 27 nC - reverse recovery charge; directly impacts turn-off loss and EMI in hard-switched topologies |
| RθJL | 20 °C/W - junction-to-lead thermal resistance; allows direct thermal path to PCB copper for sustained 1 A conduction without heatsink |
| VF @ 1A/25°C | 0.84–0.93 V - forward voltage range; determines conduction loss and self-heating at full load |
| IRM | 3.4 A - peak reverse recovery current at VR = 100 V; informs snubber sizing and MOSFET voltage stress margin |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode band marking; two-terminal device (anode and cathode) mounted on PCB with 5 mm × 5 mm Cu pad per thermal test condition.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter or transformer secondary center-tap) |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; tied to output rail or positive bus; sustains 200 V reverse bias during off-state |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications including engine control modules and body electronics |
| Ultra-fast trr ≤ 25 ns | Reduces switching loss and voltage overshoot in high-frequency DC/DC converters and active clamp circuits |
| Low VF = 0.84 V typ @ 1A/25°C | Minimizes conduction loss and thermal rise in 12 V/1 A auxiliary supplies |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking; supports high-yield automated assembly |
| Junction temperature range –55°C to +175°C | Supports operation in extended-temperature environments such as industrial motor drives and outdoor power systems |
Applications
| Automotive Engine Control Unit (ECU) | Industrial DC/DC Converter |
|---|---|
Use Scenario: Freewheeling path in 5 V/1 A isolated auxiliary supply feeding microcontroller and CAN transceiver. IC Role / Device Role / Timing Role: Ultra-fast rectifier in flyback secondary side; recovers energy during MOSFET off-time. Use Value: 25 ns trr prevents voltage spike-induced latch-up; 200 V VRRM accommodates 12 V battery transients up to ±100 V. | Use Scenario: Output rectification in 24 V input, 3.3 V/1 A non-isolated buck-derived supply for PLC I/O modules. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in cost-sensitive, medium-frequency (<300 kHz) designs. Use Value: 0.93 V max VF limits conduction loss to <0.93 W at full load; DO-214AC footprint fits tight board layouts. |
| Snubber Network in Motor Drive Inverter | High-Frequency Switch-Mode Power Supply |
Use Scenario: RCD snubber across IGBT collector-emitter in 48 V BLDC inverter. IC Role / Device Role / Timing Role: Fast-recovery clamp diode that resets snubber capacitor before next switching cycle. Use Value: 45 A IFSM withstands transient surges; 27 nC Qrr ensures minimal snubber energy dissipation per cycle. | Use Scenario: Secondary-side rectification in 100 kHz resonant LLC adapter for telecom equipment. IC Role / Device Role / Timing Role: High-efficiency unidirectional current path with low stored charge to preserve ZVS timing. Use Value: 19 pF junction capacitance reduces capacitive loading on resonant tank; 175°C TJ max supports sealed enclosure operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R02FL | 1 A, 200 V, trr = 22 ns, VF = 0.95 V max @ 1 A/25°C, DO-214AC | Slightly higher VF increases conduction loss; identical thermal and surge ratings | Preferred where tighter trr tolerance is critical, but requires validation of VF impact on thermal design |
| ES1D-E3/54 | 1 A, 200 V, trr = 35 ns, VF = 0.92 V max @ 1 A/25°C, DO-214AC | Slower recovery increases switching loss above 250 kHz; same footprint and moisture level | Suitable for cost-driven 100–200 kHz applications where 25 ns trr is not mandatory |
Compared with STTH1R02FL and ES1D-E3/54, the PU1DAH offers the best balance of ultra-fast recovery (25 ns), low VF (0.93 V max), and AEC-Q101 qualification-making it optimal for automotive and high-efficiency industrial DC/DC where both speed and thermal performance are constrained.
Availability
PU1DAH is available at Aetrix Electronics and suitable for automotive engine control units, industrial DC/DC converters, and high-frequency switch-mode power supplies requiring stable component supply, AEC-Q101 compliance, and consistent DO-214AC packaging.
Supply support for PU1DAH 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 rectifiers, TVS devices, and automotive-qualified components.
The PU1DAH belongs to TSC's PU1x series of ultra-fast rectifiers designed specifically for high-frequency, high-reliability power conversion in automotive and industrial environments where low Qrr, tight trr distribution, and robust thermal performance are essential.
FAQ
What is the maximum repetitive peak reverse voltage rating for PU1DAH?
The PU1DAH has a maximum repetitive peak reverse voltage (VRRM) rating of 200 V, verified per Taiwan Semiconductor's official datasheet revision B2110. This rating defines the highest reverse voltage the PU1DAH can block repeatedly without breakdown under normal operating conditions and is critical for selecting appropriate voltage derating margins in 100–150 VDC bus applications.
Is PU1DAH qualified for automotive applications?
Yes, the PU1DAH is AEC-Q101 qualified, as explicitly stated in the manufacturer's documentation. This qualification confirms that the PU1DAH has passed stress tests for temperature cycling, humidity, mechanical shock, and other environmental conditions required for use in automotive electronic control units, including under-hood and chassis-mounted systems.
What is the reverse recovery time (trr) specification for PU1DAH?
The PU1DAH has a reverse recovery time (trr) of ≤25 ns under the test condition of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is measured per JEDEC standards and reflects the diode's ability to transition rapidly from conduction to blocking state-key for minimizing switching losses in high-frequency DC/DC converters using the PU1DAH.
What package type does PU1DAH use, and what are its mounting requirements?
The PU1DAH uses the DO-214AC (SMA) surface-mount package, with polarity indicated by a cathode band. Per thermal characterization, optimal thermal performance requires mounting on a 5 mm × 5 mm copper pad on the PCB. The device is moisture sensitivity level 1, allowing standard reflow without pre-baking, supporting high-yield automated assembly of the PU1DAH.
How does the forward voltage of PU1DAH vary with temperature and current?
The PU1DAH exhibits a typical forward voltage of 0.70 V at 1 A and 125°C, dropping from 0.84 V at 25°C due to negative temperature coefficient of silicon. At 0.5 A and 125°C, VF is 0.64 V. These values are confirmed in the electrical specifications table and directly affect conduction loss calculation and thermal design when applying the PU1DAH in thermally demanding environments.
PU1DAH 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):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 930 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 25 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 200 V
- Capacitance @ Vr, F:
- 19pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 175°C
PU1DAH FAQ
1.How can I place an order for PU1DAH through Aetrix?
Please submit a Request for Quotation (RFQ) for PU1DAH 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 PU1DAH reliable?
The price and inventory of PU1DAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PU1DAH is usually 5 days.
3.What payment methods are accepted for PU1DAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PU1DAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PU1DAH?
PU1DAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PU1DAH 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 PU1DAH?
For technical support, including PU1DAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PU1DAH requirements.
6.How does Aetrix verify that PU1DAH is sourced from the original manufacturer or authorized distributors?
All PU1DAH 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 PU1DAH meets industry standards.
7.What is the process for return or replacement of PU1DAH?
All PU1DAH units undergo pre-shipment inspection (PSI). If there is an issue with PU1DAH, 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 PU1DAH part is unused and in its original packaging.
Return procedure for PU1DAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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