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Taiwan Semiconductor Corporation PU1BLWH
- Part No.:
- PU1BLWH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123W
- Datasheet:
-
PU1BLWH.pdf
- Description:
- DIODE GEN PURP 100V 1A SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:2,808
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Product details
Overview
PU1BLWH from Taiwan Semiconductor is a 1A, 100V ultra-fast surface-mount rectifier diode in SOD-123W 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 PU1BLWH datasheet, PU1BLWH pinout, PU1BLWH application, or PU1BLWH equivalent, key selection criteria include its 100V VRRM, 45A IFSM, 175°C TJMAX, low RθJA of 80°C/W on standard PCB, and SOD-123W footprint compatibility with automated assembly.
Technical Context
This device employs planar silicon technology to achieve ultra-fast switching with controlled reverse recovery characteristics (trr = 25ns typ., Qrr = 27nC). Its single-die configuration and cathode-band polarity marking are optimized for high-frequency flyback and synchronous rectification auxiliary paths.
The thermal design is defined by RθJL = 18°C/W and RθJC = 22°C/W, validated on a 5mm × 5mm Cu pad test board. Electrical behavior is specified across -55°C to +175°C junction temperature range, supporting under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse voltage; sets upper limit for blocking capability in snubber or clamp circuits |
| IF | 1 A - Continuous forward current rating; defines steady-state conduction capacity at TA = 25°C |
| trr | 25 ns - Typical reverse recovery time at IF = 0.5A, IR = 1.0A, Irr = 0.25A; enables operation >500 kHz switching |
| VF | 0.84 V - Forward voltage at IF = 1A, TJ = 25°C; determines conduction loss in high-duty-cycle paths |
| IFSM | 45 A - Non-repetitive surge current (8.3ms sine half-wave); supports inrush and fault-current handling |
| TJMAX | +175 °C - Maximum junction temperature; allows placement near hot components in engine-control modules |
| CJ | 19 pF - Junction capacitance at 1MHz, VR = 4V; impacts high-frequency noise coupling and EMI filter design |
Pinout & Package
Package: SOD-123W - Surface-mount plastic case with matte tin-plated leads, UL 94V-0 rated molding compound, and cathode band polarity indicator. Weight ≈ 0.015g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in boost converter); requires thermal relief on PCB pour |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to higher-potential rail (e.g., output capacitor positive); critical for snubber placement |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress-test requirements including HTGB, HTRB, and TC |
| Ultra-fast trr = 25ns | Minimizes switching losses and voltage overshoot during turn-off in high-frequency DC/DC stages |
| RθJA = 80°C/W | Enables 1A operation without heatsink on standard FR4 with 5mm × 5mm Cu pad |
| Moisture sensitivity level 1 | Zero bake requirement before reflow; compatible with standard SMT assembly lines |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| Automotive Engine Control Unit (ECU) | Industrial DC/DC Converter |
|---|---|
Use Scenario: Freewheeling path in 48V–12V buck converter supplying microcontroller and sensor rails. IC Role / Device Role / Timing Role: Ultra-fast rectifier providing low-loss current return during high-side MOSFET off-time. Use Value: 25ns trr reduces voltage spike and EMI generation, while 175°C TJMAX ensures reliability near ignition drivers. | Use Scenario: Output rectification in isolated 24V input, 5V/3A flyback supply for PLC I/O modules. IC Role / Device Role / Timing Role: Secondary-side rectifier handling 100–300 kHz switching with minimal conduction loss. Use Value: 0.84V VF at 1A lowers average power dissipation vs. standard fast recovery diodes, improving efficiency by ~0.8%. |
| Snubber Network in Motor Drive Inverter | High-Frequency AC-DC Adapter |
Use Scenario: RC snubber across IGBT collector-emitter to suppress voltage transients during turn-off. IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing inductive energy spikes. Use Value: 45A IFSM withstands transient surges; 19pF CJ limits capacitive loading on gate drive signals. | Use Scenario: Bridge rectifier leg in compact 65W USB-C PD adapter operating at 130kHz. IC Role / Device Role / Timing Role: High-frequency input rectifier replacing slower 1N400x series in PFC front-end. Use Value: Planar construction and SOD-123W footprint enable automated placement and reduce board area vs. DO-214AC packages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06 | VRRM = 600V, trr = 35ns, SOD-123 package, no AEC-Q101 qualification | Higher voltage rating but slower recovery; suited for general-purpose 600V applications, not automotive | Select when >100V blocking is required and AEC-Q101 is not mandated |
| ES1B | VRRM = 100V, trr = 35ns, SMA package, no AEC-Q101, RθJA = 100°C/W | Same VRRM but higher thermal resistance and slower recovery; lower cost for non-automotive use | Choose for cost-sensitive industrial supplies where 25ns trr and 175°C operation are not critical |
Compared with STTH1R06 and ES1B, PU1BLWH delivers superior high-frequency performance (25ns trr), automotive-grade reliability (AEC-Q101), and better thermal management (RθJA = 80°C/W) in the same SOD-123W footprint-making it optimal for space-constrained, thermally demanding automotive and industrial DC/DC designs.
Availability
PU1BLWH is available at Aetrix Electronics and suitable for automotive engine control units, industrial DC/DC converters, and high-frequency snubber networks requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for PU1BLWH 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with global distribution and automotive qualification capabilities.
The PU1BLWH belongs to TSC's AEC-Q101-qualified 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 PU1BLWH?
The PU1BLWH has a maximum junction temperature (TJMAX) of +175°C, verified per AEC-Q101 stress testing. This rating allows reliable operation in under-hood automotive applications and high-ambient industrial environments. Derating curves in the datasheet define allowable forward current versus ambient temperature, and thermal design must account for RθJA = 80°C/W on standard PCB layout.
Is PU1BLWH pin-compatible with other SOD-123W rectifiers like ES1B?
PU1BLWH uses the standard SOD-123W package with anode/cathode terminals in identical physical location and polarity marking (cathode band), making it mechanically interchangeable with other SOD-123W rectifiers such as ES1B. However, electrical differences-including trr (25ns vs. 35ns), thermal resistance (80°C/W vs. 100°C/W), and AEC-Q101 qualification-require circuit-level validation before substitution.
Does PU1BLWH meet automotive qualification standards?
Yes, PU1BLWH is AEC-Q101 qualified, having passed all required stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling. This certification confirms suitability for automotive power electronics, including engine control, body electronics, and ADAS subsystems where reliability under thermal and mechanical stress is mandatory.
What is the reverse recovery time specification for PU1BLWH?
The typical reverse recovery time (trr) of PU1BLWH is 25ns under conditions of IF = 0.5A, IR = 1.0A, and Irr = 0.25A. A second test condition (IF = 1.0A, di/dt = 50A/µs, VR = 30V) yields 34ns max. This ultra-fast recovery minimizes switching losses and voltage overshoot in high-frequency DC/DC topologies.
What packaging and moisture sensitivity level does PU1BLWH have?
PU1BLWH is supplied in SOD-123W package on 10,000-piece tape-and-reel format and carries Moisture Sensitivity Level (MSL) 1 per J-STD-020. This means it can be stored indefinitely at ≤30°C/85% RH and requires no baking prior to standard reflow soldering-enabling direct use in high-volume SMT lines without process modification.
PU1BLWH 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):
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
- Operating Temperature - Junction:
- -55°C ~ 175°C
PU1BLWH FAQ
1.How can I place an order for PU1BLWH through Aetrix?
Please submit a Request for Quotation (RFQ) for PU1BLWH 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 PU1BLWH reliable?
The price and inventory of PU1BLWH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PU1BLWH is usually 5 days.
3.What payment methods are accepted for PU1BLWH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PU1BLWH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PU1BLWH?
PU1BLWH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PU1BLWH 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 PU1BLWH?
For technical support, including PU1BLWH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PU1BLWH requirements.
6.How does Aetrix verify that PU1BLWH is sourced from the original manufacturer or authorized distributors?
All PU1BLWH 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 PU1BLWH meets industry standards.
7.What is the process for return or replacement of PU1BLWH?
All PU1BLWH units undergo pre-shipment inspection (PSI). If there is an issue with PU1BLWH, 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 PU1BLWH part is unused and in its original packaging.
Return procedure for PU1BLWH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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