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Taiwan Semiconductor Corporation PU1BLSH
- Part No.:
- PU1BLSH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123H
- Datasheet:
-
PU1BLSH.pdf
- Description:
- DIODE GEN PURP 100V 1A SOD123HE
- Quantity:
- Payment:
- Shipping:
Inventory:16,821
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Product details
Overview
PU1BLSH from Taiwan Semiconductor is a 1A, 100V ultra-fast surface-mount rectifier diode in SOD-123HE package, featuring 25ns reverse recovery time, 0.84V forward voltage at 1A/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 PU1BLSH datasheet, PU1BLSH pinout, PU1BLSH application, or PU1BLSH equivalent, key selection criteria include its 100V VRRM, 45A IFSM, 175°C maximum junction temperature, low RθJA of 71°C/W on standard PCB, and SOD-123HE footprint compatibility with automated assembly.
Technical Context
This device uses planar silicon technology to achieve ultra-fast switching performance with controlled reverse recovery characteristics. Its single-die configuration, 19pF junction capacitance at 4V, and 27nC reverse recovery charge support stable operation in high-frequency hard-switched topologies.
The thermal design is optimized for surface-mount use: RθJL = 13°C/W enables efficient heat transfer to PCB copper, while moisture sensitivity level 1 (per J-STD-020) and matte tin-plated leads ensure robust reflow solderability without preconditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking voltage; defines safe operating range in 48V–72V bus applications |
| IF | 1 A - Continuous forward current rating; supports compact DC/DC designs up to ~15W output |
| trr | 25 ns - Measured at IF=0.5A, IR=1.0A, Irr=0.25A; enables <500kHz switching without excessive switching loss |
| VF | 0.84 V @ 1A, 25°C - Low conduction loss improves efficiency in low-voltage secondary-side rectification |
| TJMAX | 175 °C - High junction temperature rating allows operation in under-hood automotive environments |
| RθJA | 71 °C/W - Thermal resistance on 5mm×5mm Cu pad; determines required board copper area for thermal management |
| Qrr | 27 nC - Reverse recovery charge; impacts EMI and snubber sizing in flyback and LLC resonant converters |
Pinout & Package
SOD-123HE is a compact, surface-mount plastic package with gull-wing leads, UL 94V-0 rated molding compound, and cathode polarity indicated by a band. Weight is 0.013g. Leads are matte tin-plated and compliant with J-STD-002 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); must handle 1A continuous and 45A surge |
| Cathode | Forward current exit / reverse blocking terminal | Connected to higher-potential rail (e.g., output capacitor positive); blocks 100V reverse voltage with ≤2µA leakage at 25°C |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements including HTOL, TC, and HAST |
| Ultra-fast trr = 25 ns | Reduces switching losses and EMI generation in high-frequency DC/DC converters above 200kHz |
| Low VF = 0.84 V @ 1A | Minimizes conduction loss in space-constrained 12V/24V secondary-side rectification |
| SOD-123HE footprint | Enables automated placement and reflow; compatible with industry-standard pick-and-place nozzles and stencil apertures |
| MSL Level 1 | No floor life limitation or baking requirement prior to reflow-reduces manufacturing overhead |
Applications
| Automotive DC/DC Converters | Industrial SMPS Secondary Rectification |
|---|---|
Use Scenario: 12V-to-5V/3.3V isolated buck-derived converter in ADAS camera module power supply. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectified flyback topology, handling 1A average output current. Use Value: 175°C TJMAX and AEC-Q101 qualification ensure reliable operation in engine bay ambient temperatures up to 105°C. | Use Scenario: Output rectifier in 24V-input industrial PoE midspan power supply delivering 1A at 54V. IC Role / Device Role / Timing Role: Ultra-fast recovery diode minimizing reverse recovery spikes during 300kHz switching transitions. Use Value: 25ns trr and 27nC Qrr reduce snubber losses and EMI filter component count. |
| Snubber Networks | High-Frequency Inverters |
Use Scenario: RCD clamp snubber across MOSFET in 100kHz half-bridge inverter driving piezoelectric actuators. IC Role / Device Role / Timing Role: Clamp diode conducting brief high-di/dt reverse recovery current during turn-off. Use Value: 100A/µs di/dt capability and 3.4A IRM prevent snap-off failure during fast voltage transients. | Use Scenario: Commutation diode in 400kHz resonant LLC inverter for LED driver with 100V bus. IC Role / Device Role / Timing Role: Bidirectional conduction path enabling zero-voltage switching (ZVS) during dead-time intervals. Use Value: 19pF CJ minimizes capacitive loading on gate drivers and preserves ZVS margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R0100S | VRRM = 100V, trr = 35ns, VF = 0.95V @ 1A - slower recovery and higher conduction loss | Higher switching loss in >250kHz designs; suitable where thermal margin exists | Prefer PU1BLSH when minimizing EMI or maximizing efficiency above 200kHz |
| ES1J | VRRM = 600V, trr = 35ns, IF = 1A - over-specified voltage rating, larger SOD-123 package | Excess VRRM adds cost and capacitance; not optimized for 100V systems | PU1BLSH offers better VF/trr tradeoff and smaller footprint for 100V applications |
Compared with STTH1R0100S and ES1J, PU1BLSH delivers superior high-frequency efficiency due to its 25ns trr and 0.84V VF, while its SOD-123HE package enables tighter layout and lower parasitic inductance in compact power stages.
Availability
PU1BLSH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS secondary rectification, and snubber networks requiring stable component supply and AEC-Q101-compliant sourcing.
Supply support for PU1BLSH 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 automotive, industrial, and consumer markets since 1979.
The PU1BLSH belongs to TSC's ultra-fast rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in automotive and industrial environments where thermal robustness and switching speed are critical.
FAQ
What is the maximum junction temperature rating for PU1BLSH?
The PU1BLSH has a maximum junction temperature (TJMAX) of +175°C, verified per absolute maximum ratings in the official datasheet. This rating allows the PU1BLSH to operate reliably in under-hood automotive environments and high-temperature industrial enclosures without derating below full 1A current at ambient temperatures up to 105°C when properly mounted on a 5mm×5mm copper pad.
Is PU1BLSH pin-compatible with other SOD-123HE rectifiers?
Yes - PU1BLSH uses the standard SOD-123HE package with anode and cathode terminals in the conventional orientation defined by JEDEC MO-203AA. Its pinout matches industry-standard SOD-123HE rectifiers such as STTH1R0100S and ES1J, enabling direct footprint reuse in layout design, though electrical parameters differ and require circuit validation.
Does PU1BLSH meet automotive qualification standards?
Yes - PU1BLSH is explicitly AEC-Q101 qualified, as stated in the official Taiwan Semiconductor documentation. This qualification covers stress tests including high-temperature operating life (HTOL), temperature cycling (TC), and highly accelerated stress test (HAST), confirming suitability for automotive power electronics applications such as body control modules and ADAS power supplies.
What is the reverse recovery time specification for PU1BLSH?
The PU1BLSH reverse recovery time (trr) is specified as 25ns under conditions of IF = 0.5A, IR = 1.0A, and Irr = 0.25A. An alternate condition (IF = 1.0A, di/dt = 50A/µs, VR = 30V) yields 34ns - both values are measured and published in the PU1BLSH datasheet for accurate switching loss modeling.
What packaging and reel quantity is offered for PU1BLSH?
PU1BLSH is supplied in tape-and-reel format per the ordering code PU1BLSH, packaged in SOD-123HE, with 10,000 units per reel. The marking code "U1BLS" appears on the device body, and the package complies with moisture sensitivity level 1 (MSL-1), eliminating bake requirements before surface-mount assembly.
PU1BLSH 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):
- 100 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 @ 100 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
PU1BLSH FAQ
1.How can I place an order for PU1BLSH through Aetrix?
Please submit a Request for Quotation (RFQ) for PU1BLSH 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 PU1BLSH reliable?
The price and inventory of PU1BLSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PU1BLSH is usually 5 days.
3.What payment methods are accepted for PU1BLSH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PU1BLSH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PU1BLSH?
PU1BLSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PU1BLSH 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 PU1BLSH?
For technical support, including PU1BLSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PU1BLSH requirements.
6.How does Aetrix verify that PU1BLSH is sourced from the original manufacturer or authorized distributors?
All PU1BLSH 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 PU1BLSH meets industry standards.
7.What is the process for return or replacement of PU1BLSH?
All PU1BLSH units undergo pre-shipment inspection (PSI). If there is an issue with PU1BLSH, 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 PU1BLSH part is unused and in its original packaging.
Return procedure for PU1BLSH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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