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

Taiwan Semiconductor Corporation S1D

Name: S1D
Brand: Taiwan Semiconductor Corporation
SKU: S1D
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S1D

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: S1D.pdf

Description:: DIODE GEN PURP 200V 1A DO214AC

Quantity:: RFQ Add To RFQ list

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Inventory:14,696

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Product details

Overview

S1D from Taiwan Semiconductor is a 200 V, 1 A surface-mount silicon rectifier diode in DO-214AC (SMA) package, featuring 1.1 V max forward voltage at 1 A and 1 µA max reverse leakage at 25°C, used in DC-DC converters and snubber circuits.

For engineers reviewing the S1D datasheet, S1D pinout, S1D application, or S1D equivalent, key selection criteria include repetitive peak reverse voltage (200 V), thermal resistance (R_θJL = 27 °C/W), junction temperature range (–55 to +175 °C), and RoHS/halogen-free compliance for industrial power conversion designs.

Technical Context

The S1D is a single-die, glass-passivated standard recovery rectifier with 1500 ns reverse recovery time and 12 pF junction capacitance at 4 V, optimized for switching-mode power supplies operating below 100 kHz where low conduction loss outweighs ultra-fast recovery needs.

Its DO-214AC (SMA) package supports automated placement, features matte tin-plated leads compliant with J-STD-002, and meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability standards.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - Maximum repetitive reverse blocking voltage before avalanche breakdown
I_F	1 A - Continuous average forward current rating at T_L = 75 °C
V_F (max)	1.1 V @ 1 A, 25 °C - Directly impacts conduction loss and thermal rise in power stage
I_R (max)	1 µA @ 200 V, 25 °C - Ensures minimal leakage in high-impedance hold or sensing paths
t_rr	1500 ns - Defines minimum off-time in hard-switched topologies; limits usable frequency range
R_θJL	27 °C/W - Enables direct heatsinking via PCB copper; critical for thermal design without external heatsink
Junction temp	–55 to +175 °C - Supports operation in automotive under-hood and industrial motor drive environments

Pinout & Package

DO-214AC (SMA) package: molded plastic case with cathode band marking; anode and cathode terminals aligned for standard surface-mount reflow assembly; weight ≈ 0.060 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of rectification path; must handle full load current and surge
Cathode	Forward current exit point	Marked by visible band; connects to output rail or energy storage node; carries same current as anode

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability under humidity and thermal cycling vs. epoxy-passivated alternatives
Moisture sensitivity level 1	Eliminates bake requirement prior to reflow; compatible with standard SMT lines without special handling
RoHS & halogen-free	Meets IEC 61249-2-21 and EU RoHS directives for environmentally regulated end equipment
UL 94V-0 molding compound	Prevents flame propagation during fault conditions in enclosed power modules or lighting housings
J-STD-002 solderable leads	Guarantees consistent wetting and joint integrity across lead-free reflow profiles (e.g., SAC305)

Applications

DC-DC Converter	Snubber Circuit
Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 5–24 V at ≤1 A. IC Role / Device Role / Timing Role: Unidirectional current steering element converting transformer AC output to regulated DC bus. Use Value: Low 1.1 V V_F minimizes conduction loss at 1 A, improving efficiency over higher-V_F alternatives like 1N4007.	Use Scenario: Voltage clamping network across MOSFET drain-source in PWM motor drives or SMPS. IC Role / Device Role / Timing Role: Energy dissipation path for inductive kickback, limiting dv/dt stress on switching devices. Use Value: 200 V V_RRM and 40 A I_FSM withstand typical snubber transients while maintaining stable leakage <1 µA.
Lighting Application	Switching Inverter
Use Scenario: Input rectification in LED driver modules for commercial downlights or streetlight ballasts. IC Role / Device Role / Timing Role: AC line-to-DC bulk capacitor charging element in bridge or single-diode configuration. Use Value: UL 94V-0 package and halogen-free construction satisfy safety and environmental requirements for indoor/outdoor luminaires.	Use Scenario: Output rectification in low-frequency (<50 kHz) inverters for HVAC blowers or pump controllers. IC Role / Device Role / Timing Role: Bidirectional current blocking during dead-time intervals in half-bridge configurations. Use Value: 175 °C max junction temperature enables reliable operation in thermally constrained inverter enclosures without forced air.

DC-DC Converter

Snubber Circuit

Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 5–24 V at ≤1 A.

IC Role / Device Role / Timing Role: Unidirectional current steering element converting transformer AC output to regulated DC bus.

Use Value: Low 1.1 V V_F minimizes conduction loss at 1 A, improving efficiency over higher-V_F alternatives like 1N4007.

Use Scenario: Voltage clamping network across MOSFET drain-source in PWM motor drives or SMPS.

IC Role / Device Role / Timing Role: Energy dissipation path for inductive kickback, limiting dv/dt stress on switching devices.

Use Value: 200 V V_RRM and 40 A I_FSM withstand typical snubber transients while maintaining stable leakage <1 µA.

Lighting Application

Switching Inverter

Use Scenario: Input rectification in LED driver modules for commercial downlights or streetlight ballasts.

IC Role / Device Role / Timing Role: AC line-to-DC bulk capacitor charging element in bridge or single-diode configuration.

Use Value: UL 94V-0 package and halogen-free construction satisfy safety and environmental requirements for indoor/outdoor luminaires.

Use Scenario: Output rectification in low-frequency (<50 kHz) inverters for HVAC blowers or pump controllers.

IC Role / Device Role / Timing Role: Bidirectional current blocking during dead-time intervals in half-bridge configurations.

Use Value: 175 °C max junction temperature enables reliable operation in thermally constrained inverter enclosures without forced air.

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	Ultrafast recovery (t_rr = 75 ns), higher V_F (1.3 V), same 200 V V_RRM, DO-41 through-hole	Requires PCB layout change; better suited for >100 kHz switching but increases conduction loss	Select when faster recovery is mandatory and through-hole assembly is acceptable
Vishay VS-1EWH02-M3/5AT	Same DO-214AC package, 200 V V_RRM, 1.05 V V_F (typ), t_rr = 1200 ns, AEC-Q101 qualified	No package change; tighter V_F spec and automotive qualification enable use in automotive body electronics	Select for automotive-grade reliability without footprint modification

Compared with MUR120 and VS-1EWH02-M3/5AT, the S1D offers optimal balance of cost, thermal performance (27 °C/W R_θJL), and manufacturability (MSL-1, tape-and-reel), making it preferred for cost-sensitive industrial DC-DC and lighting where 1500 ns t_rr is sufficient.

Availability

S1D is available at Aetrix Electronics and suitable for DC-DC converters, snubber circuits, and lighting applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for S1D 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with global distribution and AEC-Q qualified product lines.

The S1D belongs to TSC's S1A–S1M family of surface-mount general-purpose rectifiers, designed specifically for cost-effective, high-reliability AC/DC and DC/DC power conversion in industrial, lighting, and consumer applications.

FAQ

What is the maximum repetitive peak reverse voltage rating for the S1D?

The S1D has a maximum repetitive peak reverse voltage (V_RRM) of 200 V, verified per Taiwan Semiconductor's S2102 datasheet revision. This rating defines the highest continuous reverse-bias voltage the S1D can block without entering avalanche breakdown under normal operating conditions. Exceeding 200 V risks irreversible junction damage. The S1D is part of a voltage-scaled series where S1A = 50 V, S1B = 100 V, and S1D = 200 V.

Does the S1D meet RoHS and halogen-free requirements?

Yes, the S1D is RoHS compliant and halogen-free per IEC 61249-2-21, as confirmed in the official Taiwan Semiconductor S2102 datasheet. Its molding compound contains no brominated or chlorinated flame retardants, and lead content is below 1000 ppm. These attributes make the S1D suitable for export to EU, China, and other regulated markets requiring strict environmental compliance.

What is the thermal resistance from junction to lead (R_θJL) for the S1D?

The S1D has a junction-to-lead thermal resistance (R_θJL) of 27 °C/W, measured per JEDEC standards. This value enables efficient heat transfer from the silicon die directly into the PCB copper via the leads, supporting 1 A continuous operation without external heatsinking when mounted on ≥1 cm² of 2-oz copper. It is identical to S1A, S1B, S1G, and S1J in the same family.

Can the S1D be used as a direct replacement for the 1N4007 in surface-mount designs?

No - the S1D is not a direct replacement for the 1N4007 due to fundamental differences: the 1N4007 is a through-hole DO-41 device rated for 1000 V V_RRM, while the S1D is a surface-mount DO-214AC device rated for only 200 V V_RRM. Though both are 1 A rectifiers, substituting S1D for 1N4007 in 1000 V applications would cause immediate failure. Use S1M (1000 V) instead if voltage rating must match.

What is the reverse recovery time (t_rr) specification for the S1D?

The S1D has a reverse recovery time (t_rr) of 1500 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per the S2102 datasheet. This places it in the standard recovery category - suitable for line-frequency and low-to-mid frequency switching (≤50 kHz) but not recommended for high-frequency (>100 kHz) synchronous rectification where ultrafast diodes (e.g., <100 ns) are required. The S1D's t_rr is consistent across S1A–S1K variants.

S1D 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:: 1.1 V @ 1 A

Speed:: Standard Recovery >500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 1.5 µs

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

Capacitance @ Vr, F:: 12pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

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

S1D FAQ

1.How can I place an order for S1D through Aetrix?

Please submit a Request for Quotation (RFQ) for S1D 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 S1D reliable?

The price and inventory of S1D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S1D is usually 5 days.

3.What payment methods are accepted for S1D?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S1D transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S1D?

S1D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S1D 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 S1D?

For technical support, including S1D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S1D requirements.

6.How does Aetrix verify that S1D is sourced from the original manufacturer or authorized distributors?

All S1D 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 S1D meets industry standards.

7.What is the process for return or replacement of S1D?

All S1D units undergo pre-shipment inspection (PSI). If there is an issue with S1D, 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 S1D part is unused and in its original packaging.

Return procedure for S1D:

1.Submit a request within 90 days.

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

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