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Taiwan Semiconductor Corporation PU1DLWH
- Part No.:
- PU1DLWH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123W
- Datasheet:
-
PU1DLWH.pdf
- Description:
- DIODE GEN PURP 200V 1A SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:7,438
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Product details
Overview
PU1DLWH from Taiwan Semiconductor is a 1 A, 200 V ultra-fast surface-mount rectifier diode in SOD-123W package, featuring 25 ns reverse recovery time, 0.84 V forward voltage at 1.0 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 PU1DLWH datasheet, PU1DLWH pinout, PU1DLWH application, or PU1DLWH equivalent, key selection criteria include its 200 V VRRM, 45 A IFSM surge rating, 175 °C maximum junction temperature, low RθJA of 80 °C/W, and SOD-123W footprint compatibility with automated PCB assembly.
Technical Context
This device is a single-die, planar-junction silicon rectifier optimized for high-frequency switching applications. Its ultra-fast recovery (trr = 25 ns typ. under IF = 0.5 A / IR = 1.0 A conditions) minimizes switching losses in hard-switched topologies, while its 19 pF junction capacitance supports stable operation up to ~100 MHz small-signal bandwidth.
The PU1DLWH operates across –55 °C to +175 °C junction temperature range and delivers consistent performance under transient thermal loads, evidenced by RθJL = 18 °C/W and validated transient thermal impedance curves. Its matte tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse voltage; defines safe blocking capability in 170 V AC rectification or 150 V DC bus clamp circuits |
| IF | 1 A continuous - Rated average forward current at TL = 75 °C on 5 mm × 5 mm Cu pad; supports compact power stage designs |
| trr | 25 ns typical - Ultra-fast recovery enables use in >200 kHz SMPS without excessive switching loss or EMI |
| VF | 0.84 V @ 1 A / 25°C - Low conduction loss improves efficiency in low-voltage, high-current paths |
| RθJA | 80 °C/W - Thermal resistance measured on standard JEDEC test board; enables thermal budgeting for 1 W dissipation at ΔT = 80 °C |
| Junction Temp | –55 to +175 °C - Extended operating range supports under-hood automotive and industrial ambient environments |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements including HTGB, HTRB, and temperature cycling |
Pinout & Package
SOD-123W surface-mount plastic package with cathode band marking; 2-terminal configuration (anode/cathode), moisture sensitivity level 1 (MSL-1), UL 94V-0 rated molding compound, and 0.015 g typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); polarity must match PCB silkscreen |
| Cathode | Forward current exit / reverse blocking terminal | Marked by visible band; connects to higher-potential rail (e.g., output capacitor positive or input bus) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated reliability for automotive power modules, engine control units, and ADAS subsystems |
| Ultra-fast trr = 25 ns | Reduces turn-off energy loss and di/dt-induced voltage spikes in synchronous rectifier and flyback snubber circuits |
| Low VF = 0.84 V @ 1 A | Minimizes conduction loss in 12 V–48 V intermediate bus converters where diode drop dominates efficiency |
| SOD-123W footprint | Enables high-density layout with industry-standard 2.5 mm × 1.3 mm land pattern and compatibility with pick-and-place equipment |
| RθJL = 18 °C/W | Supports direct thermal coupling to copper pour or thermal vias for improved power handling beyond ambient-limited ratings |
Applications
| Automotive DC/DC Converters | Industrial Snubber Circuits |
|---|---|
Use Scenario: Step-down conversion from 48 V battery to 12 V auxiliary rail in electric vehicle power distribution units. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck topology, conducting during low-side FET off-time. Use Value: 200 V VRRM safely clamps transients from 48 V bus switching; 175 °C rating ensures operation near motor controllers. | Use Scenario: RC snubber network across IGBTs in variable-frequency drives for HVAC and pumps. IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing inductive kickback energy during IGBT turn-off. Use Value: 25 ns trr prevents reverse recovery oscillation; 45 A IFSM withstands repeated surge events. |
| High-Frequency SMPS | Telecom Power Supplies |
Use Scenario: Secondary-side rectification in 300–500 kHz LLC resonant converters for server PSUs. IC Role / Device Role / Timing Role: Output rectifier managing high di/dt waveforms with minimal stored charge. Use Value: Qrr = 27 nC reduces switching loss and EMI generation compared to standard fast recovery diodes. | Use Scenario: Input bridge rectification and hold-up capacitor charging in -48 V telecom rectifiers. IC Role / Device Role / Timing Role: Primary-side AC/DC interface diode handling line surges and ripple currents. Use Value: MSL-1 rating and halogen-free construction meet NEBS Level 3 and RoHS compliance for telecom infrastructure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R02UF | VRRM = 200 V, trr = 30 ns, VF = 0.95 V @ 1 A - higher forward drop, slower recovery | Less efficient in high-frequency, low-VOUT designs due to higher conduction and switching loss | Acceptable where thermal margin exists and cost is prioritized over peak efficiency |
| RB055LAM-40 | VRRM = 40 V, trr = 15 ns, VF = 0.45 V @ 1 A - lower voltage rating, faster recovery, lower VF | Not suitable for 200 V blocking; limited to ≤36 V systems like USB-PD or PoE | Select only when system VRRM requirement is ≤40 V and ultra-low VF is critical |
Compared with STTH1R02UF and RB055LAM-40, the PU1DLWH uniquely balances 200 V blocking, 25 ns recovery, and 0.84 V forward drop in an AEC-Q101-qualified SOD-123W package-making it optimal for automotive and industrial 48 V–100 V power stages where reliability and efficiency coexist.
Availability
PU1DLWH 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 traceable sourcing.
Supply support for PU1DLWH 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 consumer markets since 1979.
The PU1DLWH belongs to TSC's AEC-Q101-qualified ultra-fast rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in harsh-environment applications such as engine control, ADAS, and industrial motor drives.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for PU1DLWH?
The PU1DLWH has a maximum repetitive peak reverse voltage (VRRM) of 200 V, as confirmed in the Absolute Maximum Ratings table. This rating allows the PU1DLWH to safely block reverse voltages up to 200 V in continuous operation, making it suitable for 170 V AC rectification or 150 V DC bus applications where transient overvoltage margins are required.
Is PU1DLWH qualified for automotive applications?
Yes, the PU1DLWH is AEC-Q101 qualified, as explicitly stated in the FEATURES section. This qualification covers stress tests including high-temperature gate bias (HTGB), high-temperature reverse bias (HTRB), and temperature cycling-ensuring reliability for under-hood and powertrain-related automotive electronics where the PU1DLWH is deployed.
What is the forward voltage (VF) of PU1DLWH at 1.0 A and 25°C?
The forward voltage (VF) of PU1DLWH is 0.84 V (typical) and 0.93 V (maximum) at 1.0 A and 25°C, per the ELECTRICAL SPECIFICATIONS table. This low VF directly reduces conduction losses in high-current paths, contributing to higher overall efficiency in power supplies using the PU1DLWH.
What package type does PU1DLWH use, and what are its key mechanical attributes?
The PU1DLWH uses the SOD-123W surface-mount package, with matte tin-plated leads compliant with J-STD-002, UL 94V-0 flammability rating, polarity indicated by cathode band, and moisture sensitivity level 1 (MSL-1). Its compact 2.5 mm × 1.3 mm footprint supports high-density PCB layouts and automated assembly.
What is the reverse recovery time (trr) specification for PU1DLWH?
The reverse recovery time (trr) for PU1DLWH is 25 ns (typical) under test conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This ultra-fast recovery enables clean switching in high-frequency power converters and minimizes energy loss during diode turn-off transitions in the PU1DLWH.
PU1DLWH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123W
- 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:
- SOD-123W
- Operating Temperature - Junction:
- -55°C ~ 175°C
PU1DLWH FAQ
1.How can I place an order for PU1DLWH through Aetrix?
Please submit a Request for Quotation (RFQ) for PU1DLWH 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 PU1DLWH reliable?
The price and inventory of PU1DLWH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PU1DLWH is usually 5 days.
3.What payment methods are accepted for PU1DLWH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PU1DLWH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PU1DLWH?
PU1DLWH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PU1DLWH 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 PU1DLWH?
For technical support, including PU1DLWH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PU1DLWH requirements.
6.How does Aetrix verify that PU1DLWH is sourced from the original manufacturer or authorized distributors?
All PU1DLWH 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 PU1DLWH meets industry standards.
7.What is the process for return or replacement of PU1DLWH?
All PU1DLWH units undergo pre-shipment inspection (PSI). If there is an issue with PU1DLWH, 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 PU1DLWH part is unused and in its original packaging.
Return procedure for PU1DLWH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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