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Taiwan Semiconductor Corporation PU1DLSH
- Part No.:
- PU1DLSH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123H
- Datasheet:
-
PU1DLSH.pdf
- Description:
- DIODE GEN PURP 200V 1A SOD123HE
- Quantity:
- Payment:
- Shipping:
Inventory:105,872
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Product details
Overview
PU1DLSH from Taiwan Semiconductor is a 1 A, 200 V ultra-fast surface-mount rectifier diode in SOD-123HE 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 PU1DLSH datasheet, PU1DLSH pinout, PU1DLSH application, or PU1DLSH equivalent, key selection criteria include its 200 V repetitive peak reverse voltage, 45 A surge current rating, 175 °C maximum junction temperature, and SOD-123HE thermal performance (RθJL = 13 °C/W), critical for compact power stage designs.
Technical Context
The PU1DLSH employs planar silicon technology to achieve ultra-fast switching with low Qrr (27 nC) and low trr (19–25 ns), enabling reduced switching losses in high-frequency hard-switched topologies. Its single-die configuration and cathode-band polarity marking support automated placement and unambiguous orientation on PCBs.
Thermally, it delivers RθJA = 71 °C/W on a 5 mm × 5 mm Cu pad, with RθJC = 19 °C/W confirming effective heat transfer to the PCB copper. The device operates across –55 °C to +175 °C, meeting automotive under-hood ambient requirements without derating below 125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum blocking voltage before avalanche; sets upper limit for DC bus or snubber voltage rating |
| IF | 1 A continuous - Rated average forward current at TL = 75 °C; defines steady-state conduction capability |
| trr | 19–25 ns - Measured reverse recovery time; directly impacts turn-off loss and EMI in switching nodes |
| VF @ 1A/25°C | 0.84 V max - Forward voltage drop determines conduction loss and thermal load at full load |
| Qrr | 27 nC - Reverse recovery charge; lower value reduces diode-induced voltage spikes and MOSFET turn-on loss |
| RθJL | 13 °C/W - Junction-to-lead thermal resistance; enables accurate thermal modeling when soldered to PCB copper |
| TJ(max) | +175 °C - Maximum junction temperature; allows operation in high-ambient automotive environments |
Pinout & Package
SOD-123HE surface-mount package with molded epoxy body, matte tin-plated leads, and cathode band marking. Dimensions comply with JEDEC standard; weight ≈ 0.013 g.
| 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 |
| Cathode | Forward current exit / reverse blocking terminal | Marked by visible band; ties to higher-potential rail (e.g., input capacitor positive); critical for polarity-sensitive snubbers |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS power supplies |
| Ultra-fast trr ≤ 25 ns | Enables use in >500 kHz DC/DC converters without excessive switching loss or ringing |
| Low Qrr = 27 nC | Reduces voltage overshoot during MOSFET turn-on and lowers EMI filter burden |
| RθJL = 13 °C/W | Supports thermal design with minimal copper area-no external heatsink required in most 1A applications |
| SOD-123HE footprint | Compatible with standard pick-and-place equipment; enables high-yield automated assembly |
Applications
| Automotive DC/DC Converters | High-Frequency Snubber Networks |
|---|---|
Use Scenario: Step-down conversion in 12 V/48 V dual-battery systems for ADAS cameras and radar modules. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or asynchronous buck regulator; handles 1 A continuous current with fast commutation. Use Value: 200 V VRRM provides margin against load-dump transients; 175 °C TJ(max) ensures reliability under hood temperatures. | Use Scenario: RC snubber across MOSFET drain-source in flyback or LLC primary-side switching. IC Role / Device Role / Timing Role: Fast-recovery clamp diode that absorbs turn-off energy and suppresses voltage spikes. Use Value: 25 ns trr and 27 nC Qrr minimize snubber dissipation and improve system efficiency vs. standard FRDs. |
| Industrial SMPS Auxiliary Supplies | Telecom DC/DC Modules |
Use Scenario: Output rectification in isolated auxiliary bias supplies for gate drivers and controllers. IC Role / Device Role / Timing Role: Single-die output rectifier delivering 1 A at 12–24 V with low VF and minimal thermal rise. Use Value: 0.84 V VF at 1 A reduces conduction loss; SOD-123HE footprint saves board space in multi-rail PSUs. | Use Scenario: Intermediate bus conversion in 48 V telecom systems powering baseband processors. IC Role / Device Role / Timing Role: High-frequency rectifier in non-isolated buck-derived intermediate bus converters (IBCs). Use Value: AEC-Q101 qualification adds robustness for telecom infrastructure deployed in harsh environments. |
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 | Same 200 V VRRM, but 35 ns trr and 35 nC Qrr; TO-277A package (larger footprint) | Higher switching loss in >300 kHz designs; less suitable for space-constrained telecom modules | Prefer PU1DLSH where layout area and EMI are critical; STTH1R02FL acceptable if thermal margin >15 °C exists |
| ES1D-E3/57T | 200 V VRRM, 35 ns trr, 0.92 V VF @ 1A; same SOD-123HE package but not AEC-Q101 qualified | Not validated for automotive; limited to industrial/commercial DC/DC where qualification is not mandated | Select PU1DLSH for automotive or mission-critical industrial use; ES1D-E3/57T only where cost is primary and qualification unnecessary |
Compared with STTH1R02FL and ES1D-E3/57T, the PU1DLSH offers superior switching speed (25 ns vs. ≥35 ns) and automotive qualification in the smallest footprint, making it optimal for high-density, high-reliability 1 A rectification where thermal and EMI constraints are tight.
Availability
PU1DLSH is available at Aetrix Electronics and suitable for automotive DC/DC converters, high-frequency snubber networks, and industrial SMPS auxiliary supplies requiring stable component supply and long-term lifecycle assurance.
Supply support for PU1DLSH 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 devices, rectifiers, and protection components.
The PU1DLSH belongs to TSC's ultra-fast rectifier product line, engineered specifically for high-frequency switching power supplies in automotive and industrial applications where low Qrr, tight thermal resistance, and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum repetitive peak reverse voltage rating of the PU1DLSH?
The PU1DLSH has a maximum repetitive peak reverse voltage (VRRM) of 200 V, verified per the manufacturer's absolute maximum ratings table. This rating defines the highest reverse voltage the PU1DLSH can block continuously without breakdown under normal operating conditions, and is critical for selecting appropriate voltage margin in DC/DC and snubber designs.
Is the PU1DLSH qualified for automotive applications?
Yes, the PU1DLSH is AEC-Q101 qualified, as explicitly stated in the features section of the official datasheet. This qualification confirms that the PU1DLSH has passed stress tests for temperature cycling, humidity, mechanical shock, and other automotive-specific reliability requirements, making it suitable for use in engine control, ADAS, and body electronics systems.
What is the forward voltage drop of the PU1DLSH at 1 A and 25°C?
The forward voltage (VF) of the PU1DLSH is specified as 0.84 V maximum at 1.0 A forward current and 25°C junction temperature. This value is measured under pulsed conditions (PW = 0.3 ms) and directly impacts conduction loss and thermal design-lower VF improves efficiency and eases thermal management in compact layouts.
Does the PU1DLSH have a defined reverse recovery time, and what is its typical value?
Yes, the PU1DLSH has a specified reverse recovery time (trr) of 19 ns typical and 25 ns maximum, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This ultra-fast recovery characteristic is essential for minimizing switching losses and voltage overshoot in high-frequency power converters where the PU1DLSH is deployed.
What package type does the PU1DLSH use, and what are its key mechanical attributes?
The PU1DLSH uses the SOD-123HE surface-mount package, with matte tin-plated leads compliant with J-STD-002 solderability, UL 94V-0 molding compound, and polarity indicated by a cathode band. Its weight is approximately 0.013 g, and it meets JESD 201 Class 2 whisker resistance, supporting reliable automated assembly in high-volume manufacturing.
PU1DLSH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123H
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123HE
- Operating Temperature - Junction:
- -55°C ~ 175°C
PU1DLSH FAQ
1.How can I place an order for PU1DLSH through Aetrix?
Please submit a Request for Quotation (RFQ) for PU1DLSH 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 PU1DLSH reliable?
The price and inventory of PU1DLSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PU1DLSH is usually 5 days.
3.What payment methods are accepted for PU1DLSH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PU1DLSH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PU1DLSH?
PU1DLSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PU1DLSH 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 PU1DLSH?
For technical support, including PU1DLSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PU1DLSH requirements.
6.How does Aetrix verify that PU1DLSH is sourced from the original manufacturer or authorized distributors?
All PU1DLSH 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 PU1DLSH meets industry standards.
7.What is the process for return or replacement of PU1DLSH?
All PU1DLSH units undergo pre-shipment inspection (PSI). If there is an issue with PU1DLSH, 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 PU1DLSH part is unused and in its original packaging.
Return procedure for PU1DLSH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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