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Taiwan Semiconductor Corporation PU3DAH
- Part No.:
- PU3DAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
PU3DAH.pdf
- Description:
- DIODE GEN PURP 200V 3A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:14,452
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Product details
Overview
PU3DAH from Taiwan Semiconductor is a 200V, 3A ultra-fast surface-mount rectifier diode in DO-214AC (SMA) package, featuring 25 ns reverse recovery time, 0.93 V max forward voltage at 3.0A/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 PU3DAH datasheet, PU3DAH pinout, PU3DAH application, or PU3DAH equivalent, key selection criteria include its 200V repetitive peak reverse voltage, 85A surge rating, 175°C maximum junction temperature, low RθJA of 76°C/W on standard PCB, and AEC-Q101 qualification for under-hood automotive power stages.
Technical Context
The PU3DAH employs planar silicon technology optimized for ultra-fast switching with controlled minority-carrier lifetime, enabling low Qrr (51 nC) and fast trr (23–25 ns) while maintaining low VF. Its single-die configuration and DO-214AC package support automated SMT assembly with moisture sensitivity level 1 compliance.
Thermal performance is characterized by RθJL = 19°C/W and RθJC = 23°C/W, validated on a 5 mm × 5 mm copper pad test board. Reverse leakage remains ≤10 µA at 125°C, supporting stable operation in high-temperature power supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse blocking voltage; defines usable input range in 12–48 V DC/DC outputs with 2× safety margin |
| IF | 3 A continuous - Rated average forward current at TL = 75°C; supports 15–25 W power stage designs |
| trr | 23–25 ns - Ultra-fast recovery enables >500 kHz switching without excessive switching loss or ringing |
| VF @ 3A/25°C | 0.93 V max - Low conduction loss improves efficiency in high-current synchronous rectifier auxiliary paths |
| IFSM | 85 A @ 8.3 ms - Robust surge capability handles inrush and fault transients in automotive 12 V systems |
| TJ max | +175 °C - Enables operation in engine compartment environments without derating penalties |
| Qrr | 51 nC - Low recovered charge reduces EMI and gate drive stress in hard-switched topologies |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode-indicated 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 point | Connected to lower-potential node (e.g., switch node in buck converter); requires thermal relief on PCB pour |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to output rail or ground return; critical for snubber placement and layout symmetry |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power modules requiring zero-failure field reliability over 15-year service life |
| Ultra-fast trr ≤25 ns | Enables clean turn-off in high-frequency flyback and active clamp forward converters without added snubbers |
| RθJA = 76°C/W | Permits 3 A operation on minimal 5 mm × 5 mm Cu pad-no heatsink needed in space-constrained modules |
| Moisture sensitivity level 1 | Eliminates bake requirement before reflow; compatible with standard J-STD-020 assembly lines |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU Directive 2011/65/EU for green electronics manufacturing |
Applications
| Automotive DC/DC Converters | Industrial Snubber Networks |
|---|---|
Use Scenario: 12 V to 5 V/3.3 V step-down converter in ADAS camera ECU with 300 kHz switching frequency and transient load steps. IC Role / Device Role / Timing Role: Freewheeling diode in asynchronous buck topology; recovers stored inductor energy during high-side FET off-time. Use Value: 25 ns trr and 51 nC Qrr minimize voltage overshoot and reduce MOSFET VDS stress during commutation. | Use Scenario: RC snubber across IGBT in motor drive inverter leg to suppress dv/dt-induced false triggering. IC Role / Device Role / Timing Role: Fast-recovery clamping diode that conducts snubber capacitor discharge current within <30 ns. Use Value: 200 V VRRM and 85 A IFSM withstand repeated 150 V transients with sub-µs rise times. |
| High-Frequency SMPS | On-Board Charger Auxiliary Supplies |
Use Scenario: Secondary-side rectification in 600 kHz LLC resonant converter for server PSU with tight thermal envelope. IC Role / Device Role / Timing Role: Output rectifier handling 3 A average current; operates in discontinuous conduction mode with frequent zero-current switching. Use Value: 0.93 V VF max at full load reduces conduction loss by ~12% vs. standard FR107, improving full-load efficiency by 0.4–0.6%. | Use Scenario: Bias supply rectifier in 1.5 kW OBC PFC + LLC stage, exposed to ambient up to 105°C under hood. IC Role / Device Role / Timing Role: Input rectifier for isolated auxiliary flyback supplying gate drivers and MCU; must survive 175°C junction temperature. Use Value: +175°C TJ max and ≤10 µA IR at 125°C ensure stable startup and no thermal runaway during sustained high-temp 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 |
|---|---|---|---|
| STTH3L06S | 600 V VRRM, 3 A, 35 ns trr, TO-277 package | Higher voltage rating but slower recovery; larger footprint and higher RθJA | Prefer when system requires >300 V blocking or discrete mounting; not drop-in for SMA layout |
| ON Semi MUR320 | 200 V VRRM, 3 A, 35 ns trr, DO-214AC package, no AEC-Q101 | Same package and voltage rating but higher Qrr (75 nC) and no automotive qualification | Select for cost-sensitive industrial supplies where AEC-Q101 is not mandated |
Compared with STTH3L06S and MUR320, the PU3DAH delivers superior high-frequency efficiency via 25 ns trr and 51 nC Qrr, maintains AEC-Q101 compliance for automotive use, and fits DO-214AC layouts without footprint change-making it optimal for space-constrained, thermally demanding, and automotive-qualified designs.
Availability
PU3DAH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial snubber networks, and high-frequency SMPS requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for PU3DAH 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 power discrete manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and computing markets since 1979.
The PU3DAH belongs to TSC's AEC-Q101-qualified ultra-fast rectifier family, engineered specifically for high-efficiency, high-reliability power conversion in automotive under-hood and industrial harsh-environment applications.
FAQ
What is the maximum junction temperature rating for PU3DAH?
The PU3DAH has a maximum junction temperature (TJ) rating of +175°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet revision B2109. This allows uninterrupted operation in engine compartment environments where ambient temperatures exceed 105°C, provided PCB thermal design maintains junction-to-lead resistance below 19°C/W. The PU3DAH sustains this rating without derating up to 75°C lead temperature.
Is PU3DAH pin-compatible with other DO-214AC rectifiers like MUR320?
Yes, PU3DAH uses the standard DO-214AC (SMA) package with identical mechanical outline and cathode-band polarity marking as MUR320, enabling direct PCB footprint reuse. However, electrical differences-including 25 ns vs. 35 ns reverse recovery time and AEC-Q101 qualification-require validation of timing margins and reliability requirements before substitution. The PU3DAH retains full compatibility with existing SMA land patterns.
What does the "x" in PU3xAH ordering code represent for PU3DAH?
In the PU3xAH ordering scheme, the "x" denotes the voltage grade: "B" = 100 V (PU3BAH), "C" = 150 V (PU3CAH), and "D" = 200 V (PU3DAH). This coding is laser-marked as "PU3DA" on the device body per the absolute maximum ratings table. The PU3DAH is the highest-voltage variant in the family and shares all thermal, packaging, and qualification attributes with lower-voltage siblings.
Does PU3DAH meet automotive qualification standards?
Yes, PU3DAH is explicitly qualified to AEC-Q101 for stress testing including HTGB, HTRB, TCT, and UHAST, as stated in the FEATURES section of the Taiwan Semiconductor datasheet. This certification covers the entire PU3BAH–PU3DAH series and confirms suitability for automotive powertrain, chassis, and ADAS applications where zero-defect reliability is mandatory. The PU3DAH carries full AEC-Q101 documentation traceability.
What is the typical reverse recovery charge (Qrr) of PU3DAH and why does it matter?
The PU3DAH has a typical reverse recovery charge (Qrr) of 51 nC, measured under IF = 3.0 A, di/dt = 200 A/µs, VR = 100 V conditions. This low Qrr directly reduces switching losses, EMI generation, and voltage overshoot during hard commutation-critical in high-frequency DC/DC converters. Designers rely on this value to size snubbers and select complementary MOSFETs; the PU3DAH's 51 nC is 32% lower than MUR320's 75 nC, yielding measurable efficiency gains.
PU3DAH 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
PU3DAH FAQ
1.How can I place an order for PU3DAH through Aetrix?
Please submit a Request for Quotation (RFQ) for PU3DAH 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 PU3DAH reliable?
The price and inventory of PU3DAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PU3DAH is usually 5 days.
3.What payment methods are accepted for PU3DAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PU3DAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PU3DAH?
PU3DAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PU3DAH 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 PU3DAH?
For technical support, including PU3DAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PU3DAH requirements.
6.How does Aetrix verify that PU3DAH is sourced from the original manufacturer or authorized distributors?
All PU3DAH 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 PU3DAH meets industry standards.
7.What is the process for return or replacement of PU3DAH?
All PU3DAH units undergo pre-shipment inspection (PSI). If there is an issue with PU3DAH, 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 PU3DAH part is unused and in its original packaging.
Return procedure for PU3DAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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