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

Taiwan Semiconductor Corporation HS1DL

Name: HS1DL
Brand: Taiwan Semiconductor Corporation
SKU: HS1DL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HS1DL

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: SOD-123

Datasheet:: HS1DL.pdf

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

Quantity:: RFQ Add To RFQ list

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Inventory:8,139

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Product details

Overview

HS1DL from Taiwan Semiconductor is a 1 A, 300 V glass-passivated surface-mount silicon rectifier diode in Sub SMA package, featuring low forward voltage (0.95 V @ 1 A), 30 A surge rating, and 50 ns reverse recovery time - used in DC-DC converters and switching-mode power supplies.

For engineers reviewing the HS1DL datasheet, HS1DL pinout, HS1DL application, or HS1DL equivalent, key selection criteria include repetitive peak reverse voltage (V_RRM = 300 V), thermal resistance (R_θJA = 100 °C/W), junction temperature range (–55 to +150 °C), and moisture sensitivity level (MSL 1).

Technical Context

The HS1DL is a single-die, standard recovery silicon rectifier optimized for high-efficiency, low-profile power conversion. Its Sub SMA package supports automated placement and meets J-STD-002 solderability and JESD 201 Class 1A whisker resistance requirements.

Designed for freewheeling and output rectification, it delivers 0.95 V forward drop at 1 A and 25 °C, with reverse leakage limited to 5 µA at 25 °C and 150 µA at 125 °C under rated reverse voltage - enabling stable operation in thermally constrained industrial and embedded power stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	300 V - maximum repetitive reverse blocking voltage; defines safe operating limit in flyback or buck output rectification
I_F	1 A continuous - average forward current rating at TA = 25 °C; derates linearly above 25 °C per Fig.1
I_FSM	30 A - non-repetitive surge current handling for startup or transient overload conditions (8.3 ms half-sine)
V_F	0.95 V @ 1 A, 25 °C - low conduction loss improves efficiency in 12–48 V DC-DC outputs
t_rr	50 ns - fast recovery enables use in 100–500 kHz switching topologies without excessive switching loss
R_θJA	100 °C/W - thermal resistance from junction to ambient; requires minimal PCB copper for thermal management at full load
MSL	Level 1 - no floor life limitation; compatible with standard reflow profiles without baking

Pinout & Package

Sub SMA package: molded epoxy case meeting UL 94V-0; matte tin-plated leads; cathode indicated by band; polarity-critical for rectifier orientation in PCB layout.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Input terminal for forward conduction	Connected to lower-potential side (e.g., switch node in buck converter); must be routed with adequate current-carrying trace width
Cathode	Output terminal for forward conduction	Marked by band; connects to output rail or filter capacitor; polarity reversal causes catastrophic failure

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability and humidity resistance in unsealed industrial environments
Low profile Sub SMA	Enables compact power stage layouts where height < 1.1 mm is required (e.g., PoE-powered devices)
RoHS & halogen-free	Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for global market access
Junction temp range –55 to +150 °C	Supports operation in automotive under-hood or industrial motor drive control modules without derating

Applications

DC-DC Converter Output Rectification	Switching Mode Inverter Freewheeling
Use Scenario: Secondary-side rectification in isolated 24 V input → 5 V/3.3 V output flyback or forward converters. IC Role / Device Role / Timing Role: Unidirectional current path enabling efficient energy transfer during transformer reset phase. Use Value: 0.95 V forward drop minimizes conduction loss at 1 A load; 300 V V_RRM provides margin over reflected output voltage spikes.	Use Scenario: Freewheeling path across inductive loads (e.g., solenoids, relay coils) in H-bridge inverters. IC Role / Device Role / Timing Role: Provides low-loss return path for stored inductor energy during PWM off-time. Use Value: 50 ns t_rr prevents reverse recovery oscillation and EMI in 20–100 kHz switching; MSL 1 simplifies manufacturing flow.
Buck Converter Synchronous Rectifier Backup	Industrial AC-DC Auxiliary Supply
Use Scenario: Asynchronous fallback rectifier when synchronous MOSFET gate drive fails in high-reliability buck regulators. IC Role / Device Role / Timing Role: Standby conduction element ensuring continued output regulation during fault conditions. Use Value: Single-die construction and 150 °C T_JMAX ensure robustness during sustained overloads without thermal runaway.	Use Scenario: Input bridge or auxiliary winding rectification in 230 VAC-fed industrial SMPS for control logic power. IC Role / Device Role / Timing Role: Converts rectified AC to DC for bias rails of controllers, sensors, and communication ICs. Use Value: 300 V V_RRM and 100 °C/W R_θJA allow direct use on small heatsinkless PCBs in enclosed enclosures.

DC-DC Converter Output Rectification

Switching Mode Inverter Freewheeling

Use Scenario: Secondary-side rectification in isolated 24 V input → 5 V/3.3 V output flyback or forward converters.

IC Role / Device Role / Timing Role: Unidirectional current path enabling efficient energy transfer during transformer reset phase.

Use Value: 0.95 V forward drop minimizes conduction loss at 1 A load; 300 V V_RRM provides margin over reflected output voltage spikes.

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

IC Role / Device Role / Timing Role: Provides low-loss return path for stored inductor energy during PWM off-time.

Use Value: 50 ns t_rr prevents reverse recovery oscillation and EMI in 20–100 kHz switching; MSL 1 simplifies manufacturing flow.

Buck Converter Synchronous Rectifier Backup

Industrial AC-DC Auxiliary Supply

Use Scenario: Asynchronous fallback rectifier when synchronous MOSFET gate drive fails in high-reliability buck regulators.

IC Role / Device Role / Timing Role: Standby conduction element ensuring continued output regulation during fault conditions.

Use Value: Single-die construction and 150 °C T_JMAX ensure robustness during sustained overloads without thermal runaway.

Use Scenario: Input bridge or auxiliary winding rectification in 230 VAC-fed industrial SMPS for control logic power.

IC Role / Device Role / Timing Role: Converts rectified AC to DC for bias rails of controllers, sensors, and communication ICs.

Use Value: 300 V V_RRM and 100 °C/W R_θJA allow direct use on small heatsinkless PCBs in enclosed enclosures.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semi MUR130	V_RRM = 300 V, I_F = 1 A, t_rr = 50 ns, but in SMA (not Sub SMA); R_θJA = 75 °C/W	Slightly higher thermal performance but larger footprint; requires PCB pad revision	Preferred where board space allows and lower thermal resistance is critical
Vishay VS-1EH03-M3	V_RRM = 300 V, I_F = 1 A, t_rr = 75 ns, Sub SMA package, but VF = 1.15 V @ 1 A	Slower recovery and higher conduction loss; suitable only for < 100 kHz designs	Acceptable for cost-sensitive, low-frequency auxiliary supplies where efficiency is secondary

Compared with MUR130 and VS-1EH03-M3, the HS1DL uniquely balances Sub SMA footprint, 0.95 V forward drop, and 50 ns recovery - making it optimal for space-constrained, medium-frequency DC-DC stages requiring both efficiency and manufacturability.

Availability

HS1DL is available at Aetrix Electronics and suitable for DC-DC converters, switching-mode inverters, and freewheeling applications requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for HS1DL 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 industrial, computing, and consumer markets since 1979.

The HS1DL belongs to TSC's HS1xL high-efficiency rectifier family, designed specifically for surface-mount power conversion stages where low profile, MSL 1 compatibility, and consistent recovery performance are essential.

FAQ

What is the maximum junction temperature rating for HS1DL?

The HS1DL has a maximum junction temperature (T_JMAX) of +150 °C and a minimum of –55 °C. This wide operating range allows reliable deployment in industrial motor drives and automotive body-control modules. Derating begins above 25 °C ambient, following the forward current derating curve in the datasheet. The HS1DL maintains specified electrical parameters within this full range when mounted per recommended pad layout.

Does HS1DL have a defined moisture sensitivity level (MSL) and reflow profile?

Yes, the HS1DL is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and can be processed using standard lead-free reflow profiles without pre-baking. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the Sub SMA package passes JESD 201 Class 1A whisker testing - confirming suitability for high-volume automated assembly lines.

What is the reverse recovery time (t_rr) of HS1DL and how is it measured?

The HS1DL has a typical reverse recovery time (t_rr) of 50 ns, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This value is confirmed in the "Electrical Specifications" table and illustrated in Fig.6 of the datasheet. The 50 ns t_rr supports clean commutation in 100–500 kHz switching power supplies, reducing switching losses and EMI compared to slower general-purpose rectifiers.

Is HS1DL RoHS and halogen-free compliant?

Yes, the HS1DL is fully RoHS compliant per EU Directive 2011/65/EU and halogen-free per IEC 61249-2-21. The molding compound is UL 94V-0 rated, and all materials meet TSC's environmental compliance program. This ensures unrestricted shipment into EU, China, Korea, and other regulated markets without additional documentation or testing.

How does the forward voltage (V_F) of HS1DL compare across temperature and current?

The HS1DL specifies V_F = 0.95 V maximum at I_F = 1 A and T_J = 25 °C (pulse test, PW = 0.3 ms). V_F decreases slightly with rising junction temperature due to semiconductor physics, but remains below 1.1 V up to 125 °C. At lower currents (e.g., 0.1 A), V_F drops to ~0.75 V - supporting high efficiency in light-load standby modes of the HS1DL-based power supplies.

HS1DL Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: SOD-123

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 200 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 950 mV @ 1 A

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

Reverse Recovery Time (trr):: 50 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 200 V

Capacitance @ Vr, F:: 20pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: Sub SMA

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

HS1DL FAQ

1.How can I place an order for HS1DL through Aetrix?

Please submit a Request for Quotation (RFQ) for HS1DL 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 HS1DL reliable?

The price and inventory of HS1DL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS1DL is usually 5 days.

3.What payment methods are accepted for HS1DL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS1DL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HS1DL?

HS1DL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HS1DL 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 HS1DL?

For technical support, including HS1DL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS1DL requirements.

6.How does Aetrix verify that HS1DL is sourced from the original manufacturer or authorized distributors?

All HS1DL 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 HS1DL meets industry standards.

7.What is the process for return or replacement of HS1DL?

All HS1DL units undergo pre-shipment inspection (PSI). If there is an issue with HS1DL, 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 HS1DL part is unused and in its original packaging.

Return procedure for HS1DL:

1.Submit a request within 90 days.

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

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