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Taiwan Semiconductor Corporation HSKLW
- Part No.:
- HSKLW
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123W
- Datasheet:
-
HSKLW.pdf
- Description:
- 75NS, 0.8A, 800V, HIGH EFFICIENT
- Quantity:
- Payment:
- Shipping:
Inventory:19,868
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Product details
Overview
HSKLW from Taiwan Semiconductor is a 800V repetitive peak reverse voltage, 0.8A average forward current surface-mount silicon rectifier in SOD-123W package, featuring 1.31V max forward voltage at 0.8A/25°C and 75ns max reverse recovery time, used in switching mode power supplies and freewheeling paths.
For engineers reviewing the HSKLW datasheet, HSKLW pinout, HSKLW application, or HSKLW equivalent, key selection factors include its 800V VRRM, low-profile SOD-123W footprint, 1.31V VF at rated current, 75ns trr for high-frequency operation, and moisture sensitivity level 1 compliance.
Technical Context
The HSKLW is a single-die, glass-passivated silicon PN junction rectifier optimized for high-voltage, medium-current DC/DC and SMPS applications. Its 800V VRRM rating and 75ns reverse recovery time support operation in 100–500 kHz switching topologies with minimal switching loss.
Thermal performance is defined by RθJL = 34°C/W and RθJA = 86°C/W on a 5mm × 5mm Cu pad PCB, enabling 0.8A continuous conduction up to +150°C junction temperature with appropriate board layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - Maximum repetitive reverse blocking voltage; defines usable input voltage range in offline or high-bus DC/DC designs |
| IF | 0.8 A - Continuous average forward current; sets maximum steady-state output capability in rectification paths |
| VF (max) | 1.31 V @ 0.8A, 25°C - Forward voltage drop directly impacts conduction loss and thermal rise in high-duty-cycle operation |
| trr (max) | 75 ns - Reverse recovery time determines switching loss and EMI behavior in hard-switched converters above 100 kHz |
| IFSM | 20 A - Non-repetitive surge current rating; supports inrush and transient overload handling without failure |
| TJ (max) | +150 °C - Maximum junction temperature enables reliable operation in thermally constrained industrial enclosures |
| CJ | 5 pF @ 1 MHz, 4 V - Low junction capacitance minimizes capacitive coupling and improves high-frequency noise immunity |
Pinout & Package
Package: SOD-123W - Low-profile, surface-mount plastic package with matte tin-plated leads, UL 94V-0 molding compound, and cathode band polarity marking. Moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry node | Connected to lower-potential side of rectified path; requires thermal relief pad for solderability and heat dissipation |
| Cathode | Forward current exit node / reverse-blocking terminal | Marked by visible band; connects to output rail or switch node; critical for correct orientation in PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enhances long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in industrial environments |
| Moisture sensitivity level 1 | Enables direct placement without baking; reduces manufacturing overhead and avoids moisture-induced popcorning during reflow |
| Low-profile SOD-123W package | 0.9 mm max height allows use in space-constrained modules and stacked PCB assemblies |
| Halogen-free per IEC 61249-2-21 | Meets RoHS and environmental compliance requirements for export to EU, Japan, and other regulated markets |
| Junction-to-lead thermal resistance (34°C/W) | Enables efficient heat transfer to PCB copper; supports 0.8A operation with minimal external heatsinking |
Applications
| DC/DC Converter Secondary Rectification | Switching Mode Inverter Freewheeling Diode |
|---|---|
Use Scenario: High-efficiency isolated DC/DC converter delivering 12 V/0.6 A from 400 V bus in telecom power supply. IC Role / Device Role / Timing Role: Output rectifier conducting during transformer secondary positive half-cycle; blocks reverse voltage during flyback phase. Use Value: 800 V VRRM provides 2× safety margin over reflected 400 V bus; 75 ns trr limits switching loss at 250 kHz operation. | Use Scenario: Bidirectional motor drive inverter using IGBTs with regenerative braking energy recapture. IC Role / Device Role / Timing Role: Freewheeling diode providing current path during IGBT off-time; clamps inductive kickback voltage. Use Value: 20 A IFSM withstands motor stall surges; 1.31 V VF minimizes conduction loss during extended freewheeling periods. |
| AC-DC Adapter Output Stage | Industrial PLC Power Input Protection |
Use Scenario: Compact 24 V/0.5 A wall adapter with universal AC input and active PFC front-end. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement in quasi-resonant flyback topology. Use Value: SOD-123W footprint enables automated placement; 1.31 V VF balances efficiency vs. cost versus Schottky alternatives. | Use Scenario: 24 V DC input stage of programmable logic controller exposed to field wiring transients. IC Role / Device Role / Timing Role: Reverse-polarity and surge protection diode placed before bulk capacitor and LDO regulator. Use Value: 800 V VRRM tolerates induced line surges up to ±600 V; glass passivation ensures stability in dusty, humid cabinet environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HSMLW | 1000 V VRRM, same IF/trr/package; higher VF (1.70 V max) | Better suited for 600–800 V bus systems; increased conduction loss at 0.8A | Select HSMLW only if system requires >800 V reverse margin; otherwise HSKLW offers optimal VF/VRRM trade-off |
| HSJLW | 600 V VRRM, identical VF/trr/package; lower surge rating (15 A IFSM) | Targeted at 200–400 V DC bus applications; insufficient margin for 400 V+ systems | Use HSJLW where cost is prioritized and reverse voltage stays below 420 V; not safe for 800 V design reuse |
Compared with HSMLW and HSJLW, the HSKLW delivers the optimal balance of 800 V blocking capability, 1.31 V forward drop, and 75 ns recovery for 400–600 V bus applications-avoiding unnecessary conduction loss (HSMLW) or inadequate voltage margin (HSJLW).
Availability
HSKLW is available at Aetrix Electronics and suitable for DC/DC converters, switching mode inverters, and industrial power input protection requiring stable component supply across automotive-grade production cycles and industrial OEM programs.
Supply support for HSKLW 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 Taiwanese manufacturer specializing in discrete power semiconductors, including rectifiers, TVS diodes, and MOSFETs for industrial and consumer power systems.
The HSKLW belongs to TSC's HSxLW high-voltage rectifier family, engineered for high-efficiency, surface-mount power conversion in space-constrained and thermally demanding applications.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for HSKLW?
The HSKLW has a maximum repetitive peak reverse voltage (VRRM) of 800 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet. This rating defines the highest reverse voltage the device can block repeatedly without breakdown under normal operating conditions at TA = 25°C. The HSKLW is part of the HSxLW series where 'x' denotes voltage grade: HSDLW (200 V), HSGLW (400 V), HSJLW (600 V), HSKLW (800 V), and HSMLW (1000 V).
Does HSKLW have a specified reverse recovery time (trr)?
Yes, the HSKLW has a maximum reverse recovery time (trr) of 75 ns under test conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, as stated in the Electrical Specifications section. This value applies to all variants from HSJLW through HSMLW and reflects the device's suitability for high-frequency switching applications such as 200–500 kHz DC/DC converters where fast recovery minimizes switching loss and EMI.
What package type is used for HSKLW?
The HSKLW uses the SOD-123W surface-mount package, a low-profile variant of the standard SOD-123 with enhanced thermal performance and moisture resistance. Per the Mechanical Data section, it features matte tin-plated leads, UL 94V-0 compliant molding compound, polarity indicated by cathode band, and a typical weight of 0.016 g. The SOD-123W footprint is compatible with automated pick-and-place equipment and meets J-STD-020 moisture sensitivity level 1.
What is the forward voltage (VF) of HSKLW at full rated current?
The HSKLW exhibits a maximum forward voltage (VF) of 1.31 V at IF = 0.8 A and TJ = 25°C, and 1.30 V at the same current but elevated junction temperature of 125°C. These values are explicitly listed in the Electrical Specifications table for HSJLW, HSKLW, and HSMLW. The typical VF is 1.09 V at 0.8 A/125°C, confirming its behavior as a high-voltage, moderately doped silicon rectifier-not a Schottky or ultra-fast type.
Is HSKLW RoHS and halogen-free compliant?
Yes, the HSKLW is RoHS compliant and halogen-free in accordance with IEC 61249-2-21, as stated in the FEATURES section of the Taiwan Semiconductor datasheet. The device uses matte tin-plated leads and a halogen-free molding compound, satisfying environmental regulations for sale in the EU, Japan, and other regulated markets. Its moisture sensitivity level is rated at Level 1 per J-STD-020, confirming no bake requirement prior to reflow soldering.
HSKLW 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):
- 800 V
- Current - Average Rectified (Io):
- 800mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 800 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 75 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 800 V
- Capacitance @ Vr, F:
- 5pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
- Operating Temperature - Junction:
- -55°C ~ 150°C
HSKLW FAQ
1.How can I place an order for HSKLW through Aetrix?
Please submit a Request for Quotation (RFQ) for HSKLW 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 HSKLW reliable?
The price and inventory of HSKLW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HSKLW is usually 5 days.
3.What payment methods are accepted for HSKLW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HSKLW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HSKLW?
HSKLW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HSKLW 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 HSKLW?
For technical support, including HSKLW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HSKLW requirements.
6.How does Aetrix verify that HSKLW is sourced from the original manufacturer or authorized distributors?
All HSKLW 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 HSKLW meets industry standards.
7.What is the process for return or replacement of HSKLW?
All HSKLW units undergo pre-shipment inspection (PSI). If there is an issue with HSKLW, 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 HSKLW part is unused and in its original packaging.
Return procedure for HSKLW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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