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

Taiwan Semiconductor Corporation HS1D-K

Name: HS1D-K
Brand: Taiwan Semiconductor Corporation
SKU: HS1D-K
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HS1D-K

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: HS1D-K.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

HS1D-K from Taiwan Semiconductor is a 1 A, 200 V repetitive peak reverse voltage surface-mount silicon rectifier diode in DO-214AC (SMA) package, featuring glass-passivated junction, low forward voltage drop (max 1.0 V at 1 A, 25°C), fast recovery time (max 50 ns), and moisture sensitivity level 1 per J-STD-020 - used in DC-DC converters and switching-mode inverters.

For engineers reviewing the HS1D-K datasheet, HS1D-K pinout, HS1D-K application, or HS1D-K equivalent, key selection considerations include its 200 V V_RRM, 30 A I_FSM, 150°C maximum junction temperature, DO-214AC mechanical compatibility, and cathode-band polarity marking for reliable automated assembly and thermal management in high-efficiency power supplies.

Technical Context

The HS1D-K is a single-die, standard-recovery silicon rectifier optimized for high-frequency switching applications up to several hundred kHz. Its 50 ns reverse recovery time and 20 pF junction capacitance at 1 MHz / 4 V enable reduced switching losses in flyback and forward converter topologies.

Thermally, it exhibits a junction-to-ambient thermal resistance of 70°C/W under standard PCB mounting conditions, supporting continuous 1 A conduction with appropriate copper area. The device operates across –55°C to +150°C junction temperature range and meets JESD201 Class 1A whisker resistance and UL 94V-0 flammability requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - Maximum non-repetitive reverse voltage the diode blocks without breakdown; defines usable input voltage headroom in AC/DC front-ends.
I_F	1 A continuous - Rated average forward current at 75°C case temperature; determines minimum trace width and heatsinking in 12–48 V output converters.
V_F (max)	1.0 V at 1 A, 25°C - Directly impacts conduction loss (P_cond ≈ I_F × V_F) and thermal rise in compact SMT layouts.
t_rr (max)	50 ns - Enables efficient operation in 100–500 kHz SMPS designs by minimizing reverse recovery charge and associated switching loss.
R_θJA	70 °C/W - Specifies thermal performance on standard 1-inch² 1-oz copper pad; informs derating curves for ambient temperatures above 50°C.
I_FSM	30 A (8.3 ms half-sine) - Supports surge immunity during cold-start or line transients without bond-wire fusing.
Junction temp	–55°C to +150°C - Validates suitability for industrial and automotive under-hood environments where ambient exceeds 85°C.

Pinout & Package

Package: DO-214AC (SMA), surface-mount, molded epoxy case with matte tin-plated leads, cathode indicated by band. Weight: 0.060 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential node (e.g., switch node in buck sync rectifier or transformer secondary center-tap).
Cathode	Forward current exit / reverse blocking terminal	Marked with band; ties to output rail or positive bus; must be routed with controlled impedance in high-di/dt paths.

Key Features

Feature	Design Value
Glass-passivated junction	Enhances long-term reliability and humidity resistance in unsealed industrial enclosures without conformal coating.
Moisture sensitivity level 1	Eliminates bake requirement prior to reflow; supports direct placement into standard J-STD-020-compliant SMT lines.
Fast recovery (50 ns)	Reduces reverse recovery energy (E_rec) by >40% vs. general-purpose rectifiers, lowering MOSFET stress in synchronous flyback designs.
RoHS & halogen-free	Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing and end-of-life recycling.

Applications

DC-DC Converters	Switching Inverters
Use Scenario: Secondary-side rectification in isolated 12 V/24 V output DC-DC modules for telecom and server PSUs. IC Role / Device Role / Timing Role: Unidirectional current steering and voltage step-down via forward conduction; no timing or control function. Use Value: 1.0 V V_F minimizes power loss at 1 A load, improving full-load efficiency by ~0.8% over 1.2 V alternatives.	Use Scenario: Freewheeling path in H-bridge motor drives operating at 20–100 kHz PWM frequency. IC Role / Device Role / Timing Role: Clamp inductive kickback and recirculate current during MOSFET off-time; critical for EMI suppression and MOSFET SOA protection. Use Value: 50 ns t_rr limits reverse recovery di/dt, reducing voltage overshoot spikes that would otherwise require larger snubbers.
AC-DC Adapters	Industrial Power Supplies
Use Scenario: Output rectification in 5–15 W offline adapters with universal AC input (85–265 V_AC). IC Role / Device Role / Timing Role: Converts transformer secondary AC to regulated DC; placed after high-frequency transformer, not line rectification. Use Value: 200 V V_RRM provides 2× safety margin over 100 V_DC peak secondary voltage, enabling robust design without over-spec'ing.	Use Scenario: Auxiliary bias supply rectification in PLC power modules requiring extended temperature operation. IC Role / Device Role / Timing Role: Provides isolated +15 V or +24 V rail for gate drivers and op-amps; operates continuously at 70°C ambient. Use Value: 150°C T_JMAX and –55°C to +150°C storage range ensure functionality in cabinet-mounted industrial environments with minimal derating.

DC-DC Converters

Switching Inverters

Use Scenario: Secondary-side rectification in isolated 12 V/24 V output DC-DC modules for telecom and server PSUs.

IC Role / Device Role / Timing Role: Unidirectional current steering and voltage step-down via forward conduction; no timing or control function.

Use Value: 1.0 V V_F minimizes power loss at 1 A load, improving full-load efficiency by ~0.8% over 1.2 V alternatives.

Use Scenario: Freewheeling path in H-bridge motor drives operating at 20–100 kHz PWM frequency.

IC Role / Device Role / Timing Role: Clamp inductive kickback and recirculate current during MOSFET off-time; critical for EMI suppression and MOSFET SOA protection.

Use Value: 50 ns t_rr limits reverse recovery di/dt, reducing voltage overshoot spikes that would otherwise require larger snubbers.

AC-DC Adapters

Industrial Power Supplies

Use Scenario: Output rectification in 5–15 W offline adapters with universal AC input (85–265 V_AC).

IC Role / Device Role / Timing Role: Converts transformer secondary AC to regulated DC; placed after high-frequency transformer, not line rectification.

Use Value: 200 V V_RRM provides 2× safety margin over 100 V_DC peak secondary voltage, enabling robust design without over-spec'ing.

Use Scenario: Auxiliary bias supply rectification in PLC power modules requiring extended temperature operation.

IC Role / Device Role / Timing Role: Provides isolated +15 V or +24 V rail for gate drivers and op-amps; operates continuously at 70°C ambient.

Use Value: 150°C T_JMAX and –55°C to +150°C storage range ensure functionality in cabinet-mounted industrial environments with minimal derating.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MUR120	V_RRM = 200 V, I_F = 1 A, t_rr = 75 ns, V_F = 1.15 V (max)	Slower recovery increases switching loss in >200 kHz designs; higher V_F raises conduction loss at full load.	Select when cost sensitivity outweighs efficiency targets and layout space allows minor thermal margin.
Vishay VS-1EH02-M3	V_RRM = 200 V, I_F = 1 A, t_rr = 35 ns, V_F = 1.05 V (max), R_θJA = 65 °C/W	Faster recovery and slightly better thermal resistance, but tighter V_F tolerance may affect parallel diode balancing.	Prefer for high-density 300+ kHz converters where <40 ns t_rr improves EMI profile and reduces snubber size.

Compared with MUR120 and VS-1EH02-M3, the HS1D-K delivers optimal balance of low V_F, moderate t_rr, and industry-standard DO-214AC footprint - making it ideal for cost-constrained yet thermally demanding 100–250 kHz industrial DC-DC designs where 1.0 V forward drop directly improves system efficiency at mid-load conditions.

Availability

HS1D-K is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial power supplies requiring stable component supply, JEDEC-compliant packaging, and long-term production continuity.

Supply support for HS1D-K 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 industrial, computing, and consumer markets since 1979.

The HS1D-K belongs to TSC's HS1x-K family of high-efficiency surface-mount rectifiers, engineered specifically for high-frequency switching power conversion where low forward voltage and fast recovery are essential for efficiency and thermal performance.

FAQ

What is the maximum junction temperature rating for the HS1D-K?

The HS1D-K has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table in the official TSC datasheet F2111. This enables reliable operation in enclosed industrial power supplies where case temperatures reach 90–100°C. Derating begins above 75°C ambient, and the device remains functional up to its full T_J limit when mounted on adequate copper area. The HS1D-K maintains specified electrical parameters within this range.

Is the HS1D-K suitable for use in automotive applications?

The HS1D-K is not qualified to AEC-Q101 or automotive-grade reliability standards, and TSC explicitly states these devices are "not designed for use in medical, life-saving, or life-sustaining applications." While its –55°C to +150°C operating range overlaps with some automotive under-hood environments, the HS1D-K lacks PPAP documentation, automotive-specific qualification testing, and guaranteed lot traceability required for Tier-1 automotive systems. For such use, consider TSC's AEC-Q101-certified rectifier families instead of the HS1D-K.

What does the 'K' suffix in HS1D-K indicate?

The 'K' suffix in HS1D-K denotes tape-and-reel packaging per TSC's ordering code convention: HS1x-K indicates DO-214AC (SMA) package supplied in 7,500-unit reels. It does not denote temperature grade, reliability level, or process variant. The 'D' in HS1D-K specifies the 200 V V_RRM rating, distinguishing it from HS1G-K (400 V), HS1J-K (600 V), etc. The HS1D-K marking on the device body is 'HS1D'.

How does the HS1D-K compare to general-purpose rectifiers like 1N4007?

The HS1D-K differs fundamentally from 1N4007: it is a fast-recovery surface-mount rectifier (t_rr ≤ 50 ns, V_F ≤ 1.0 V), whereas 1N4007 is a slow silicon rectifier (t_rr > 2 µs, V_F ≈ 1.1 V) in through-hole DO-41 package. The HS1D-K supports high-frequency switching (>100 kHz) with lower losses and automated assembly; 1N4007 is limited to 1 kHz line-frequency applications. They are not interchangeable in SMPS designs due to recovery behavior and package form factor.

Does the HS1D-K require a heatsink in typical applications?

The HS1D-K typically does not require an external heatsink when conducting ≤1 A at ambient temperatures ≤50°C and mounted on ≥1-inch² of 1-oz copper per JEDEC 51-3 standard. Its R_θJA of 70°C/W results in ~7°C rise at 1 A with 1.0 V V_F (0.7 W dissipation). At 75°C ambient or higher-current pulsed loads, thermal relief via increased copper area or localized ground planes is recommended - but dedicated heatsinks are unnecessary unless operating near I_F derating limits. The HS1D-K's DO-214AC footprint is optimized for PCB thermal conduction, not heatsink attachment.

HS1D-K Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AC, SMA

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:: 1.7 V @ 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:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AC (SMA)

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

HS1D-K FAQ

1.How can I place an order for HS1D-K through Aetrix?

Please submit a Request for Quotation (RFQ) for HS1D-K 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 HS1D-K reliable?

The price and inventory of HS1D-K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS1D-K is usually 5 days.

3.What payment methods are accepted for HS1D-K?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS1D-K transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HS1D-K?

HS1D-K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HS1D-K 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 HS1D-K?

For technical support, including HS1D-K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS1D-K requirements.

6.How does Aetrix verify that HS1D-K is sourced from the original manufacturer or authorized distributors?

All HS1D-K 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 HS1D-K meets industry standards.

7.What is the process for return or replacement of HS1D-K?

All HS1D-K units undergo pre-shipment inspection (PSI). If there is an issue with HS1D-K, 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 HS1D-K part is unused and in its original packaging.

Return procedure for HS1D-K:

1.Submit a request within 90 days.

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

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