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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation HSKLWH

Name: HSKLWH
Brand: Taiwan Semiconductor Corporation
SKU: HSKLWH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HSKLWH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: SOD-123W

Datasheet:: HSKLWH.pdf

Description:: 75NS, 0.8A, 800V, HIGH EFFICIENT

Quantity:: RFQ Add To RFQ list

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Inventory:19,920

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Product details

Overview

HSKLWH from Taiwan Semiconductor is a high-efficiency surface-mount silicon rectifier diode rated for 800 V repetitive peak reverse voltage (V_RRM), 0.8 A average forward current (I_F), and 20 A non-repetitive surge current (I_FSM). It features a low-profile SOD-123W package, glass-passivated junction, and AEC-Q101 qualification for automotive-grade reliability in freewheeling and snubber circuits.

For engineers reviewing the HSKLWH datasheet, HSKLWH pinout, HSKLWH application, or HSKLWH equivalent, key selection criteria include its 800 V V_RRM, 1.31 V max forward voltage at 0.8 A / 25°C, 75 ns max reverse recovery time, 5 pF junction capacitance, and suitability for DC-DC converters and car lighting systems requiring robust thermal performance (R_θJA = 86 °C/W).

Technical Context

This device is a single-die, unidirectional silicon rectifier optimized for high-voltage switching applications where fast recovery and low leakage are critical. Its 800 V V_RRM rating targets mid-to-high voltage DC-DC stages, while the 75 ns trr supports operation in kHz-range switching topologies with reduced switching losses.

The SOD-123W package enables automated placement and provides enhanced thermal dissipation over standard SOD-123-evidenced by R_θJL = 34 °C/W and R_θJC = 35 °C/W-making it suitable for space-constrained automotive PCBs operating up to 150 °C junction temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	800 V - Supports DC bus voltages up to 565 V DC in full-wave rectified AC inputs or 800 V transient clamping
I_F	0.8 A continuous - Rated for sustained conduction in low-power auxiliary rails and LED driver return paths
I_FSM	20 A (8.3 ms) - Withstands inrush and fault currents in automotive load-dump scenarios
V_F (max)	1.31 V @ 0.8 A, 25°C - Limits conduction loss to ≤1.05 W at full rated current
trr (max)	75 ns - Enables efficient operation in 10–100 kHz SMPS without excessive switching loss or EMI
C_J	5 pF @ 4 V - Minimizes capacitive coupling in high-dv/dt snubber networks
T_J max	150 °C - Allows operation in under-hood automotive environments with minimal derating

Pinout & Package

Package: SOD-123W - Low-profile, surface-mount plastic package with matte tin-plated leads, moisture sensitivity level 1 (J-STD-020), UL 94V-0 molding compound, and cathode band polarity marking.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential node (e.g., switch node in buck freewheel path)
Cathode	Forward current exit point; marked by band	Connected to higher-potential rail (e.g., output capacitor positive terminal)

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive use including temperature cycling, mechanical shock, and humidity testing per JESD22
Glass passivated junction	Enhances long-term reliability and leakage stability under high-humidity and high-temperature bias conditions
Low-profile SOD-123W	0.9 mm max height enables stacking in tight board spaces and compatibility with automated pick-and-place
Halogen-free & RoHS compliant	Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated end equipment
Junction-to-lead thermal resistance	R_θJL = 34 °C/W - Enables direct heat transfer to PCB copper pour for improved power handling

Applications

DC-DC Converter	Automotive Lighting
Use Scenario: Secondary-side rectification in isolated flyback or forward converters powering infotainment or ADAS subsystems. IC Role / Device Role / Timing Role: Unidirectional current steering during transformer reset phase; operates synchronously with primary-side switching frequency. Use Value: 75 ns trr minimizes reverse recovery loss, while 800 V V_RRM accommodates reflected transients in 42 V or 48 V architectures.	Use Scenario: LED current return path and reverse-polarity protection in headlamp or DRL modules. IC Role / Device Role / Timing Role: Freewheeling diode across inductive LED drivers and reverse-battery protection element. Use Value: AEC-Q101 qualification ensures survivability across -40°C to +125°C ambient, and 20 A I_FSM withstands load dump surges.
Snubber Network	Freewheeling Application
Use Scenario: RC snubber across MOSFET drains in boost PFC or motor gate-drive circuits. IC Role / Device Role / Timing Role: Clamps voltage spikes during turn-off by conducting transient energy into the snubber capacitor. Use Value: 5 pF C_J reduces capacitive loading on the switching node; 800 V rating handles >600 V transients without breakdown.	Use Scenario: Inductive kickback path for solenoids, relays, and fuel injectors in engine control units. IC Role / Device Role / Timing Role: Provides low-impedance path for stored magnetic energy to dissipate safely when drive signal is removed. Use Value: 1.31 V max V_F limits power dissipation during extended freewheel periods; glass passivation prevents parameter drift over 15-year vehicle life.

DC-DC Converter

Automotive Lighting

Use Scenario: Secondary-side rectification in isolated flyback or forward converters powering infotainment or ADAS subsystems.

IC Role / Device Role / Timing Role: Unidirectional current steering during transformer reset phase; operates synchronously with primary-side switching frequency.

Use Value: 75 ns trr minimizes reverse recovery loss, while 800 V V_RRM accommodates reflected transients in 42 V or 48 V architectures.

Use Scenario: LED current return path and reverse-polarity protection in headlamp or DRL modules.

IC Role / Device Role / Timing Role: Freewheeling diode across inductive LED drivers and reverse-battery protection element.

Use Value: AEC-Q101 qualification ensures survivability across -40°C to +125°C ambient, and 20 A I_FSM withstands load dump surges.

Snubber Network

Freewheeling Application

Use Scenario: RC snubber across MOSFET drains in boost PFC or motor gate-drive circuits.

IC Role / Device Role / Timing Role: Clamps voltage spikes during turn-off by conducting transient energy into the snubber capacitor.

Use Value: 5 pF C_J reduces capacitive loading on the switching node; 800 V rating handles >600 V transients without breakdown.

Use Scenario: Inductive kickback path for solenoids, relays, and fuel injectors in engine control units.

IC Role / Device Role / Timing Role: Provides low-impedance path for stored magnetic energy to dissipate safely when drive signal is removed.

Use Value: 1.31 V max V_F limits power dissipation during extended freewheel periods; glass passivation prevents parameter drift over 15-year vehicle life.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH0808D	800 V V_RRM, 0.8 A I_F, but TO-277A package (larger footprint, higher R_θJA = 110 °C/W)	Less suitable for ultra-thin automotive modules due to 1.7 mm height and manual assembly constraints	Prefer HSKLWH where board height <1.0 mm or automated placement is required
ES1J-M3/84A	600 V V_RRM, same SOD-123W package, but only 1.0 A I_F and 35 ns trr	Insufficient for 800 V bus designs; better suited for 24–48 V systems with tighter timing budgets	Select HSKLWH when 800 V standoff and AEC-Q101 compliance are mandatory

Compared with STTH0808D and ES1J-M3/84A, HSKLWH uniquely combines 800 V rating, AEC-Q101 qualification, SOD-123W form factor, and 75 ns recovery in a single automotive-grade rectifier-enabling compact, thermally efficient, and standards-compliant designs without layout or qualification trade-offs.

Availability

HSKLWH is available at Aetrix Electronics and suitable for automotive lighting, DC-DC converter secondary-side rectification, and snubber network applications requiring stable component supply, long-lifecycle support, and AEC-Q101-compliant sourcing.

Supply support for HSKLWH 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 rectifiers, TVS devices, and automotive-qualified components.

The HSKxLWH series was developed specifically for high-reliability automotive power conversion, targeting replacement of legacy axial and larger SMD rectifiers with AEC-Q101-compliant, low-profile alternatives for next-generation ECU and lighting modules.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for HSKLWH?

The HSKLWH has a V_RRM of 800 V, confirmed in the Absolute Maximum Ratings table on page 2 of the A2103 datasheet. This rating applies across the full operating temperature range (-55°C to +150°C) and defines the highest instantaneous reverse voltage the device can block repeatedly without breakdown. It is distinct from VR(RMS) (560 V) and is used for design margining against transients in automotive 48 V and industrial DC bus applications.

Is HSKLWH qualified for automotive applications?

Yes, HSKLWH is AEC-Q101 qualified, as explicitly stated in the FEATURES section of the datasheet. This qualification covers stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing (uHAST), confirming suitability for under-hood and cabin automotive electronics where reliability over 15 years is required.

What is the forward voltage (V_F) of HSKLWH at 0.8 A and 25°C?

The forward voltage of HSKLWH is 1.31 V maximum at 0.8 A and 25°C, per the ELECTRICAL SPECIFICATIONS table on page 2. The typical value is 1.17 V under the same conditions. This V_F directly determines conduction loss (P_cond = I_F × V_F) and must be used with thermal resistance data to verify junction temperature in final layout.

What package does HSKLWH use, and what are its key mechanical attributes?

HSKLWH uses the SOD-123W package: a low-profile surface-mount outline with 0.9 mm maximum height, matte tin-plated leads compliant with J-STD-002, polarity indicated by cathode band, and UL 94V-0 rated molding compound. Its weight is approximately 0.016 g, and it meets JESD201 Class 2 whisker resistance requirements.

What is the reverse recovery time (t_rr) specification for HSKLWH?

The reverse recovery time for HSKLWH is 75 ns maximum, measured at I_F = 0.5 A, I_R = 1.0 A, and I_RR = 0.25 A, as specified in the ELECTRICAL SPECIFICATIONS table. This value reflects the time required for minority carriers to clear after forward conduction, directly impacting switching loss and EMI in high-frequency DC-DC converters.

HSKLWH 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:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-123W

Operating Temperature - Junction:: -55°C ~ 150°C

HSKLWH FAQ

1.How can I place an order for HSKLWH through Aetrix?

Please submit a Request for Quotation (RFQ) for HSKLWH 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 HSKLWH reliable?

The price and inventory of HSKLWH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HSKLWH is usually 5 days.

3.What payment methods are accepted for HSKLWH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HSKLWH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HSKLWH?

HSKLWH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HSKLWH 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 HSKLWH?

For technical support, including HSKLWH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HSKLWH requirements.

6.How does Aetrix verify that HSKLWH is sourced from the original manufacturer or authorized distributors?

All HSKLWH 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 HSKLWH meets industry standards.

7.What is the process for return or replacement of HSKLWH?

All HSKLWH units undergo pre-shipment inspection (PSI). If there is an issue with HSKLWH, 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 HSKLWH part is unused and in its original packaging.

Return procedure for HSKLWH:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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