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

Taiwan Semiconductor Corporation HS1DLW

Name: HS1DLW
Brand: Taiwan Semiconductor Corporation
SKU: HS1DLW
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HS1DLW

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: SOD-123W

Datasheet:: HS1DLW.pdf

Description:: 50NS, 1A, 200V, HIGH EFFICIENT R

Quantity:: RFQ Add To RFQ list

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Inventory:19,680

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Product details

Overview

HS1DLW from Taiwan Semiconductor is a 1 A, 200 V repetitive peak reverse voltage (V_RRM) surface-mount Schottky rectifier in SOD-123W package, featuring 1.0 V max forward voltage at 1 A, 30 A peak surge current, and 175 °C maximum junction temperature - deployed in DC-DC converters and switching-mode power supplies.

For engineers reviewing the HS1DLW datasheet, HS1DLW pinout, HS1DLW application, or HS1DLW equivalent, key selection criteria include verified V_RRM = 200 V, I_F = 1 A continuous rating, low-profile SOD-123W footprint, 50 ns reverse recovery time, and J-STD-020 Level 1 moisture sensitivity.

Technical Context

The HS1DLW is a single-die, glass-passivated silicon planar junction rectifier optimized for high-efficiency, low-loss operation in high-frequency switching topologies. Its 25 °C/W junction-to-lead thermal resistance and 80 °C/W junction-to-ambient rating support reliable thermal management under sustained 1 A conduction.

With 16 pF typical junction capacitance at 1 MHz and 4.0 V reverse bias, and reverse leakage limited to 1 µA at 25 °C and 150 µA at 125 °C, the HS1DLW maintains stable blocking performance across industrial temperature ranges.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - Maximum non-repetitive reverse voltage the device blocks reliably without breakdown
I_F	1 A - Continuous average forward current rating at T_A = 25 °C with proper PCB thermal relief
I_FSM	30 A - Peak surge current capability for 8.3 ms half-sine waveform, supporting inrush and fault transients
V_F (max)	1.0 V @ I_F = 1 A, T_J = 25 °C - Low conduction loss enabling high-efficiency power conversion
t_rr	50 ns - Fast reverse recovery minimizes switching losses in high-frequency SMPS designs
T_J(max)	+175 °C - High junction temperature rating allows operation in thermally constrained environments
R_θJL	25 °C/W - Enables direct heat transfer to PCB copper, critical for compact layout thermal design

Pinout & Package

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

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of circuit; requires adequate copper pour for thermal dissipation
Cathode	Forward current exit / reverse blocking terminal	Marked by visible band; ties to higher-potential node; defines direction of unidirectional conduction

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability and humidity resistance without hermetic sealing
Moisture sensitivity level 1	Zero bake requirement before reflow; compatible with standard SMT assembly lines
Low profile SOD-123W	0.9 mm max height enables ultra-thin power supply designs and automated pick-and-place
RoHS & halogen-free	Complies with IEC 61249-2-21 and EU RoHS Directive for environmentally regulated end equipment
J-STD-002 solderability	Guarantees robust wetting and intermetallic formation during lead-free reflow processes

Applications

DC-DC Converters	Switching Inverters
Use Scenario: Secondary-side synchronous rectification in isolated flyback or forward converters operating at 100–500 kHz. IC Role / Device Role / Timing Role: Unidirectional freewheeling diode providing low-loss current path during MOSFET off-time. Use Value: 1.0 V V_F and 50 ns t_rr reduce conduction and switching losses, improving efficiency by ≥1.2% over standard FRDs.	Use Scenario: Output rectification in single-phase H-bridge inverters for UPS and solar microinverters. IC Role / Device Role / Timing Role: High-speed output clamp and freewheeling path during dead-time intervals. Use Value: 30 A I_FSM withstands transient overcurrents; 175 °C T_J(max) supports operation in enclosed, fanless enclosures.
Industrial Motor Drives	LED Driver Power Stages
Use Scenario: Snubber and freewheeling paths in BLDC gate driver auxiliary supplies and regenerative braking circuits. IC Role / Device Role / Timing Role: Fast-recovery clamping diode absorbing inductive kickback energy from motor windings. Use Value: 25 °C/W R_θJL enables direct thermal coupling to copper heatsink pads, sustaining 1 A continuous under 85 °C ambient.	Use Scenario: Constant-current output rectification in isolated LED drivers for streetlight and high-bay fixtures. IC Role / Device Role / Timing Role: Primary output rectifier delivering stable DC to LED string with minimal ripple. Use Value: 1 µA I_R at 25 °C ensures negligible standby leakage, preserving driver efficiency at light load.

DC-DC Converters

Switching Inverters

Use Scenario: Secondary-side synchronous rectification in isolated flyback or forward converters operating at 100–500 kHz.

IC Role / Device Role / Timing Role: Unidirectional freewheeling diode providing low-loss current path during MOSFET off-time.

Use Value: 1.0 V V_F and 50 ns t_rr reduce conduction and switching losses, improving efficiency by ≥1.2% over standard FRDs.

Use Scenario: Output rectification in single-phase H-bridge inverters for UPS and solar microinverters.

IC Role / Device Role / Timing Role: High-speed output clamp and freewheeling path during dead-time intervals.

Use Value: 30 A I_FSM withstands transient overcurrents; 175 °C T_J(max) supports operation in enclosed, fanless enclosures.

Industrial Motor Drives

LED Driver Power Stages

Use Scenario: Snubber and freewheeling paths in BLDC gate driver auxiliary supplies and regenerative braking circuits.

IC Role / Device Role / Timing Role: Fast-recovery clamping diode absorbing inductive kickback energy from motor windings.

Use Value: 25 °C/W R_θJL enables direct thermal coupling to copper heatsink pads, sustaining 1 A continuous under 85 °C ambient.

Use Scenario: Constant-current output rectification in isolated LED drivers for streetlight and high-bay fixtures.

IC Role / Device Role / Timing Role: Primary output rectifier delivering stable DC to LED string with minimal ripple.

Use Value: 1 µA I_R at 25 °C ensures negligible standby leakage, preserving driver efficiency at light load.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MUR120	V_RRM = 200 V, I_F = 1 A, but TO-220AC package (not SMD); t_rr = 75 ns	Requires through-hole mounting and larger board area; unsuitable for ultra-thin or high-density layouts	Select when legacy through-hole assembly is mandated and thermal mass outweighs footprint constraints
Vishay VS-1EQH02-M3/5AT	V_RRM = 200 V, I_F = 1 A, SOD-123 package (not SOD-123W); R_θJA = 125 °C/W vs. HS1DLW's 80 °C/W	Higher thermal resistance limits usable current in compact PCBs without enhanced copper	Prefer HS1DLW where thermal performance in space-constrained designs is critical

Compared with MUR120 and VS-1EQH02-M3/5AT, the HS1DLW delivers superior thermal efficiency (25 °C/W R_θJL), lower profile (SOD-123W), and faster recovery (50 ns), making it optimal for modern high-density, high-frequency power stages.

Availability

HS1DLW is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial motor drive designs requiring stable component supply, consistent parametric performance, and full traceability across production lots.

Supply support for HS1DLW 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 global power management and industrial markets since 1979.

The HS1DLW belongs to TSC's HS1xLW high-efficiency rectifier family, engineered specifically for high-frequency switching power supplies where low V_F, fast t_rr, and robust thermal performance are essential.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for HS1DLW?

The HS1DLW has a V_RRM rating of 200 V, confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version C2103). This value is fixed for HS1DLW and distinct from higher-voltage variants like HS1GLW (400 V) or HS1MLW (1000 V). Exceeding 200 V in repetitive reverse bias risks irreversible junction breakdown.

Does HS1DLW support lead-free reflow soldering?

Yes, HS1DLW supports lead-free reflow soldering per J-STD-002. Its matte tin-plated leads ensure reliable wetting and intermetallic formation at peak temperatures up to 260 °C. The device is classified as Moisture Sensitivity Level 1 (per J-STD-020), eliminating the need for pre-bake prior to reflow - a key advantage for high-throughput SMT lines handling the HS1DLW.

What is the forward voltage drop (V_F) of HS1DLW at rated current?

The HS1DLW exhibits a maximum forward voltage of 1.0 V at I_F = 1 A and T_J = 25 °C, as specified in the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) to avoid self-heating effects. At elevated junction temperatures, V_F decreases slightly due to negative temperature coefficient behavior inherent to silicon PN junctions.

Is HS1DLW suitable for use in automotive-grade power supplies?

The HS1DLW is not qualified to AEC-Q101 or automotive-specific stress test standards. While its 175 °C T_J(max) and robust construction support industrial environments, Taiwan Semiconductor explicitly states these devices are "not designed for use in medical, life-saving, or life-sustaining applications." For automotive applications, consult TSC's AEC-Q101-certified rectifier portfolio instead of relying on HS1DLW.

How does the SOD-123W package differ from standard SOD-123?

The SOD-123W package used by HS1DLW features a wider body and enhanced thermal pad design compared to standard SOD-123, resulting in lower R_θJL (25 °C/W vs. typical ~40–50 °C/W). Dimensions confirm greater copper contact area - critical for dissipating 1 A continuously. This distinction is documented in TSC's Package Outline Dimensions drawing (Version C2103) and directly impacts thermal derating curves.

HS1DLW 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):: 200 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 1 V @ 1 A

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

Reverse Recovery Time (trr):: 50 ns

Current - Reverse Leakage @ Vr:: 1 µA @ 200 V

Capacitance @ Vr, F:: 16pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-123W

Operating Temperature - Junction:: -55°C ~ 175°C

HS1DLW FAQ

1.How can I place an order for HS1DLW through Aetrix?

Please submit a Request for Quotation (RFQ) for HS1DLW 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 HS1DLW reliable?

The price and inventory of HS1DLW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS1DLW is usually 5 days.

3.What payment methods are accepted for HS1DLW?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS1DLW transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HS1DLW?

HS1DLW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HS1DLW 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 HS1DLW?

For technical support, including HS1DLW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS1DLW requirements.

6.How does Aetrix verify that HS1DLW is sourced from the original manufacturer or authorized distributors?

All HS1DLW 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 HS1DLW meets industry standards.

7.What is the process for return or replacement of HS1DLW?

All HS1DLW units undergo pre-shipment inspection (PSI). If there is an issue with HS1DLW, 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 HS1DLW part is unused and in its original packaging.

Return procedure for HS1DLW:

1.Submit a request within 90 days.

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

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