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

Taiwan Semiconductor Corporation HS15KLW

Name: HS15KLW
Brand: Taiwan Semiconductor Corporation
SKU: HS15KLW
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HS15KLW

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: SOD-123W

Datasheet:: HS15KLW.pdf

Description:: 75NS, 1.5A, 800V, HIGH EFFICIENT

Quantity:: RFQ Add To RFQ list

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Inventory:20,000

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Product details

Overview

HS15KLW from Taiwan Semiconductor is a 1.5A, 800V repetitive peak reverse voltage (V_RRM) surface-mount silicon rectifier diode in SOD-123W package, featuring low forward voltage (1.31 V typ. at 1.5 A, 25°C), 75 ns reverse recovery time, and glass passivated junction-designed for freewheeling and switching-mode DC/DC converter output stages.

For engineers reviewing the HS15KLW datasheet, HS15KLW pinout, HS15KLW application, or HS15KLW equivalent, key selection considerations include its 800V V_RRM, 40A I_FSM surge rating, thermal resistance (R_θJA = 84°C/W), JESD201 Class 2 whisker compliance, and RoHS/halogen-free status per IEC 61249-2-21.

Technical Context

The HS15KLW is a single-die, standard recovery silicon rectifier optimized for high-voltage switching power supplies. Its 800V V_RRM and 75 ns trr enable use in 400–600V bus applications with moderate switching frequency constraints, while its 1.31 V forward voltage at rated current balances conduction loss and thermal performance.

Thermal design is supported by R_θJL = 43°C/W and R_θJC = 45°C/W on a 5 mm × 5 mm Cu pad, and moisture sensitivity is rated Level 1 per J-STD-020-enabling standard reflow without baking.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	800 V - maximum repetitive reverse blocking voltage; defines usable DC bus voltage range up to ~560 V DC (e.g., 400 V AC rectified + margin)
I_F	1.5 A continuous average forward current - determines steady-state power dissipation capability at given thermal conditions
I_FSM	40 A peak surge current (8.3 ms half-sine) - supports inrush and transient overload handling in SMPS output stages
V_F	1.31 V typ. @ 1.5 A, 25°C - directly impacts conduction loss and thermal rise in high-duty-cycle rectification
t_rr	75 ns max - limits switching loss and EMI generation in hard-switched topologies operating below ~100 kHz
C_J	9 pF @ 1 MHz, 4 V - affects high-frequency noise coupling and snubber design in flyback or LLC resonant converters
T_J max	150°C - sets maximum allowable junction temperature for reliability under sustained load and ambient conditions

Pinout & Package

Package: SOD-123W - low-profile, surface-mount plastic package with matte tin-plated leads, UL 94V-0 molding compound, cathode band polarity marking, and 0.016 g weight.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry terminal	Connected to lower-potential side of rectifier path (e.g., transformer secondary center-tap or switch node)
Cathode	Forward current exit / reverse-blocking terminal	Connected to output capacitor positive rail; marked by visible band; carries full output current and withstands V_RRM

Key Features

Feature	Design Value
Glass passivated chip junction	Enhances long-term reliability and humidity resistance in industrial environments without requiring conformal coating
Moisture sensitivity level 1	Eliminates pre-bake requirement before reflow soldering-reduces manufacturing cycle time and cost
RoHS and halogen-free compliance	Meets IEC 61249-2-21 and global environmental regulations for consumer, industrial, and telecom end equipment
Low-profile SOD-123W package	Enables compact PCB layout in space-constrained power modules and adapter designs (<0.9 mm height)

Applications

DC/DC Converter Output Rectification	Switching Inverter Freewheeling
Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 12–48 V at ≤1.5 A. IC Role / Device Role / Timing Role: Unidirectional current conduction and reverse voltage blocking during transformer reset phase. Use Value: 800 V V_RRM provides 2× safety margin over 400 V DC bus; 1.31 V V_F minimizes conduction loss at full load.	Use Scenario: Freewheeling path across inductive loads (e.g., motor windings or relay coils) in H-bridge inverters. IC Role / Device Role / Timing Role: Provides low-loss return path for inductive current decay when main switches turn off. Use Value: 40 A I_FSM handles short-circuit transients; 75 ns t_rr reduces voltage overshoot and snubber stress.
AC-DC Adapter Input Bridge Leg	Industrial Power Supply Snubber Clamp
Use Scenario: Single-diode leg in compact 20–30 W universal-input AC-DC adapters using discrete bridge configuration. IC Role / Device Role / Timing Role: Half-wave rectification element in cost-optimized discrete bridge replacing integrated bridge ICs. Use Value: SOD-123W footprint enables direct replacement of smaller packages (e.g., SOD-123); 1.5 A rating matches typical adapter output specs.	Use Scenario: Clamping diode in RCD snubber networks across MOSFETs or IGBTs in 300–600 V industrial SMPS. IC Role / Device Role / Timing Role: Absorbs turn-off energy spikes by conducting during voltage overshoot events. Use Value: 800 V V_RRM and 9 pF C_J provide fast clamping response with minimal capacitive loading on switch node.

DC/DC Converter Output Rectification

Switching Inverter Freewheeling

Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 12–48 V at ≤1.5 A.

IC Role / Device Role / Timing Role: Unidirectional current conduction and reverse voltage blocking during transformer reset phase.

Use Value: 800 V V_RRM provides 2× safety margin over 400 V DC bus; 1.31 V V_F minimizes conduction loss at full load.

Use Scenario: Freewheeling path across inductive loads (e.g., motor windings or relay coils) in H-bridge inverters.

IC Role / Device Role / Timing Role: Provides low-loss return path for inductive current decay when main switches turn off.

Use Value: 40 A I_FSM handles short-circuit transients; 75 ns t_rr reduces voltage overshoot and snubber stress.

AC-DC Adapter Input Bridge Leg

Industrial Power Supply Snubber Clamp

Use Scenario: Single-diode leg in compact 20–30 W universal-input AC-DC adapters using discrete bridge configuration.

IC Role / Device Role / Timing Role: Half-wave rectification element in cost-optimized discrete bridge replacing integrated bridge ICs.

Use Value: SOD-123W footprint enables direct replacement of smaller packages (e.g., SOD-123); 1.5 A rating matches typical adapter output specs.

Use Scenario: Clamping diode in RCD snubber networks across MOSFETs or IGBTs in 300–600 V industrial SMPS.

IC Role / Device Role / Timing Role: Absorbs turn-off energy spikes by conducting during voltage overshoot events.

Use Value: 800 V V_RRM and 9 pF C_J provide fast clamping response with minimal capacitive loading on switch node.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MUR160SFT1G	600 V V_RRM, 1.5 A, 75 ns t_rr, TO-277 package (larger footprint, higher R_θJA)	Lower voltage rating limits use to ≤420 V DC bus; TO-277 requires larger PCB area and different thermal pad layout	Select when higher surge robustness (60 A I_FSM) is prioritized over board space and moisture sensitivity level
Vishay VS-1N5819HM3/85A	40 V V_RRM, 1 A, Schottky, 1000 ns t_rr (not applicable for HV), SOD-123 package	Not suitable for 800 V applications; only viable in low-voltage (<40 V) synchronous rectification or OR-ing circuits	Reject for HS15KLW replacement; consider only for low-V_F requirements where voltage rating is not critical

Compared with MUR160SFT1G and VS-1N5819HM3/85A, the HS15KLW uniquely delivers 800 V blocking with SOD-123W's space efficiency and Level 1 moisture rating-making it optimal for compact, high-reliability 400–600 V DC industrial adapters and inverters.

Availability

HS15KLW is available at Aetrix Electronics and suitable for DC/DC converter output rectification, switching inverter freewheeling, and industrial AC-DC adapter designs requiring stable component supply, consistent parametric performance, and long-term lifecycle support.

Supply support for HS15KLW 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with ISO/TS 16949 and ISO 14001 certification.

The HS15KLW belongs to TSC's HS15xLW high-efficiency rectifier family, engineered for cost-sensitive, high-volume power conversion applications demanding reliable 200–1000 V blocking capability in ultra-compact SOD-123W packaging.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) of the HS15KLW?

The HS15KLW has a V_RRM of 800 V, confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version C2103). This rating defines the highest reverse voltage the device can block repeatedly without breakdown and is strictly assigned to the HS15KLW variant-not shared across the HS15xLW series. The HS15KLW must not be substituted with lower-V_RRM variants like HS15JLW (600 V) in 800 V applications.

What is the forward voltage (V_F) of the HS15KLW at 1.5 A and 25°C?

The HS15KLW exhibits a typical forward voltage of 1.31 V and a maximum of 1.70 V at 1.5 A and 25°C, per the Electrical Specifications table. These values are measured under pulsed conditions (300 µs, 1% duty cycle) and reflect conduction loss behavior in real-world switching applications. At 125°C, V_F drops to 1.09 V typ., improving thermal stability in high-ambient environments.

Does the HS15KLW have a specified reverse recovery time (t_rr)?

Yes, the HS15KLW has a maximum reverse recovery time of 75 ns, tested at I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This value is explicitly listed in the Electrical Specifications section for HS15JLW, HS15KLW, and HS15MLW. It is significantly slower than ultrafast or Schottky diodes but appropriate for <100 kHz switching frequencies in industrial SMPS.

What package type does the HS15KLW use, and what are its key mechanical features?

The HS15KLW uses the SOD-123W package: a low-profile, surface-mount plastic case with matte tin-plated leads compliant with J-STD-002 solderability, UL 94V-0 flammability rating, and JESD201 Class 2 whisker resistance. Its cathode is marked by a visible band, and it weighs approximately 0.016 g. The recommended pad layout and outline dimensions are provided in the Package Outline Dimensions section of the datasheet.

Is the HS15KLW RoHS and halogen-free compliant?

Yes, the HS15KLW is RoHS compliant and halogen-free per IEC 61249-2-21, as stated in the FEATURES section of the Taiwan Semiconductor datasheet. This compliance applies specifically to the HS15KLW and all variants in the HS15xLW family, supporting environmental requirements for consumer, industrial, and telecom end equipment without requiring material declaration waivers.

HS15KLW 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):: 1.5A

Voltage - Forward (Vf) (Max) @ If:: 1.7 V @ 1.5 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 75 ns

Current - Reverse Leakage @ Vr:: 1 µA @ 800 V

Capacitance @ Vr, F:: 9pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-123W

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

HS15KLW FAQ

1.How can I place an order for HS15KLW through Aetrix?

Please submit a Request for Quotation (RFQ) for HS15KLW 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 HS15KLW reliable?

The price and inventory of HS15KLW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS15KLW is usually 5 days.

3.What payment methods are accepted for HS15KLW?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS15KLW transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HS15KLW?

HS15KLW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HS15KLW 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 HS15KLW?

For technical support, including HS15KLW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS15KLW requirements.

6.How does Aetrix verify that HS15KLW is sourced from the original manufacturer or authorized distributors?

All HS15KLW 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 HS15KLW meets industry standards.

7.What is the process for return or replacement of HS15KLW?

All HS15KLW units undergo pre-shipment inspection (PSI). If there is an issue with HS15KLW, 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 HS15KLW part is unused and in its original packaging.

Return procedure for HS15KLW:

1.Submit a request within 90 days.

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

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