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

Taiwan Semiconductor Corporation S2MA-T

Name: S2MA-T
Brand: Taiwan Semiconductor Corporation
SKU: S2MA-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S2MA-T

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: S2MA-T.pdf

Description:: 2A, 1000V, STANDARD RECTIFIER

Quantity:: RFQ Add To RFQ list

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Inventory:4,328

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Product details

Overview

S2MA-T from Taiwan Semiconductor is a 2 A, 1000 V standard surface-mount silicon rectifier diode in DO-214AC (SMA) package, featuring glass-passivated junction, low reverse leakage (≤5 µA at 25°C), and 50 A surge capability (8.3 ms). It serves as the high-voltage end of the S2xA-T family and is used in DC–DC converters and switching-mode inverters requiring robust 1 kV reverse blocking.

For engineers reviewing the S2MA-T datasheet, S2MA-T pinout, S2MA-T application, or S2MA-T equivalent, key selection criteria include verified 1000 V repetitive peak reverse voltage (V_RRM), forward voltage drop ≤1.10 V at 2 A/25°C, thermal resistance R_θJA = 86 °C/W on 5 mm × 5 mm Cu pad, and RoHS/halogen-free compliance per IEC 61249-2-21.

Technical Context

This device is a single-die, unidirectional, standard recovery rectifier optimized for general-purpose AC/DC and DC/DC conversion. Its glass-passivated junction ensures stable reverse characteristics across -55°C to +150°C operating range, with junction capacitance of 30 pF at 1 MHz and 4 V reverse bias.

The S2MA-T exhibits forward voltage of 0.96 V (typ.) and 1.10 V (max.) at 2 A/25°C, and reverse current limited to 100 µA max at 125°C under rated V_R, supporting reliable operation in thermally demanding industrial power supplies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1000 V - guarantees safe operation under 1 kV repetitive reverse voltage transients
I_F	2 A continuous - supports steady-state output current in compact SMPS designs
I_FSM	50 A (8.3 ms) - withstands short-duration inrush and fault currents without failure
V_F @ 2 A, 25°C	≤1.10 V - limits conduction loss to ≤2.2 W at full rated DC current
R_θJA	86 °C/W - defines thermal rise above ambient on standard 5 mm × 5 mm PCB copper pad
T_J max	+150 °C - enables use in high-temperature environments without derating below 125°C ambient
I_R @ 125°C	≤100 µA - ensures minimal leakage-induced power loss in high-temp standby modes

Pinout & Package

DO-214AC (SMA) surface-mount package with cathode band marking; matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 1 whisker resistance.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Current entry point during forward conduction	Connected to lower-potential side (e.g., transformer secondary center-tap or switch node)
Cathode	Current exit point during forward conduction; marked by band	Connected to output rail or filter capacitor positive terminal; polarity critical for rectification

Key Features

Feature	Design Value
Glass-passivated junction	Ensures long-term stability of reverse leakage and breakdown voltage under humidity and thermal cycling
Moisture sensitivity level 1	Eliminates need for baking prior to reflow; compatible with standard SMT assembly lines
UL 94V-0 molding compound	Meets flame-retardancy requirements for safety-critical power supply enclosures
RoHS and halogen-free	Complies with EU Directive 2011/65/EU and IEC 61249-2-21 for environmentally constrained markets

Applications

DC–DC Converter	Switching Inverter
Use Scenario: Isolated flyback or forward converter output rectification in telecom power modules. IC Role / Device Role / Timing Role: Output rectifier converting high-frequency transformer secondary AC to regulated DC. Use Value: 1000 V V_RRM accommodates reflected voltage spikes in 48 V input systems with margin; low V_F reduces conduction loss at 2 A load.	Use Scenario: DC bus rectification in motor drive inverters feeding 3-phase BLDC or induction motors. IC Role / Device Role / Timing Role: Input-stage bridge rectifier converting AC line or generator output to DC link voltage. Use Value: 50 A I_FSM handles startup surges; 150 °C T_J max supports operation near heatsinked IGBTs.
Industrial Power Supply	LED Driver
Use Scenario: Secondary-side rectification in open-frame 24/48 V industrial PSUs powering PLCs and sensors. IC Role / Device Role / Timing Role: Main output rectifier delivering clean, low-noise DC to control circuitry. Use Value: ≤5 µA reverse leakage at 25°C minimizes standby power draw; DO-214AC footprint enables high-density layout.	Use Scenario: Constant-current rectification stage in isolated LED drivers for street lighting. IC Role / Device Role / Timing Role: High-voltage output rectifier handling 1000 V transient overvoltage during lightning surge events. Use Value: 1000 V V_RRM provides direct surge immunity without external TVS clamping; halogen-free construction meets outdoor lighting environmental specs.

DC–DC Converter

Switching Inverter

Use Scenario: Isolated flyback or forward converter output rectification in telecom power modules.

IC Role / Device Role / Timing Role: Output rectifier converting high-frequency transformer secondary AC to regulated DC.

Use Value: 1000 V V_RRM accommodates reflected voltage spikes in 48 V input systems with margin; low V_F reduces conduction loss at 2 A load.

Use Scenario: DC bus rectification in motor drive inverters feeding 3-phase BLDC or induction motors.

IC Role / Device Role / Timing Role: Input-stage bridge rectifier converting AC line or generator output to DC link voltage.

Use Value: 50 A I_FSM handles startup surges; 150 °C T_J max supports operation near heatsinked IGBTs.

Industrial Power Supply

LED Driver

Use Scenario: Secondary-side rectification in open-frame 24/48 V industrial PSUs powering PLCs and sensors.

IC Role / Device Role / Timing Role: Main output rectifier delivering clean, low-noise DC to control circuitry.

Use Value: ≤5 µA reverse leakage at 25°C minimizes standby power draw; DO-214AC footprint enables high-density layout.

Use Scenario: Constant-current rectification stage in isolated LED drivers for street lighting.

IC Role / Device Role / Timing Role: High-voltage output rectifier handling 1000 V transient overvoltage during lightning surge events.

Use Value: 1000 V V_RRM provides direct surge immunity without external TVS clamping; halogen-free construction meets outdoor lighting environmental specs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH2R06DJF	600 V V_RRM, 2 A, TO-277 package, faster recovery (~65 ns)	Lower voltage rating; suited for 24–48 V systems with higher switching frequency	Select when faster recovery and lower Q_rr are prioritized over 1000 V surge margin
ON Semi MUR220	200 V V_RRM, 2 A, DO-214AC, ultrafast recovery (~35 ns)	Not suitable for >200 V reverse stress; intended for PFC or low-V_IN SMPS	Choose only if system design guarantees <200 V reverse voltage and demands minimal reverse recovery loss

Compared with STTH2R06DJF and MUR220, the S2MA-T uniquely delivers 1000 V blocking capability in the same DO-214AC footprint-enabling direct replacement in legacy 1 kV designs without layout change, while trading off speed for ruggedness and cost.

Availability

S2MA-T is available at Aetrix Electronics and suitable for DC–DC converters, switching inverters, and industrial power supplies requiring stable component supply, long-lifecycle support, and consistent parametric performance across manufacturing lots.

Supply support for S2MA-T 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 S2xA-T series was designed specifically for cost-sensitive, high-reliability AC/DC and DC/DC rectification applications where standardized DO-214AC packaging, wide voltage grading (200–1000 V), and J-STD-020 Level 1 moisture robustness are essential.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for the S2MA-T?

The S2MA-T has a guaranteed V_RRM of 1000 V, confirmed in the Absolute Maximum Ratings table across all official documentation versions (D2111). This rating applies under standard test conditions (T_A = 25°C) and defines the highest reverse voltage the device can block repeatedly without breakdown. Designers must ensure system-level transients do not exceed this value without additional clamping.

Does the S2MA-T have a specified forward voltage at 2 A and 125°C?

Yes-the S2MA-T datasheet specifies V_F = 0.86 V (typical) and ≤0.97 V (maximum) at I_F = 2 A and T_J = 125°C. This data point is critical for thermal design in high-ambient environments, as it directly determines conduction loss and junction temperature rise under full-load, high-temperature operation.

Is the S2MA-T compatible with lead-free reflow soldering processes?

Yes-the S2MA-T uses matte tin-plated leads qualified per J-STD-002 for solderability and is rated Moisture Sensitivity Level 1 per J-STD-020, meaning it can be subjected to standard lead-free reflow profiles (peak ~260°C) without baking. The DO-214AC package also complies with JEDEC outline standards for automated placement reliability.

What is the thermal resistance from junction to ambient (R_θJA) for the S2MA-T?

The S2MA-T has an R_θJA of 86 °C/W when mounted on a standard test board with a 5 mm × 5 mm copper pad. This value assumes natural convection and is used to estimate junction temperature rise (ΔT_J = P_LOSS × R_θJA). For higher-power applications, adding thermal vias or larger copper areas will reduce effective R_θJA.

How does the S2MA-T differ from the S2DA-T in terms of electrical rating?

The S2MA-T and S2DA-T share identical package (DO-214AC), current rating (2 A), and thermal specs-but differ exclusively in V_RRM: S2MA-T is rated for 1000 V, while S2DA-T is rated for 200 V. Their marking codes (S2MA vs. S2DA), test limits, and reverse leakage curves are individually validated; they are not interchangeable without verifying system voltage stress margins.

S2MA-T 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):: 1000 V

Current - Average Rectified (Io):: 2A

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 2 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 5 µA @ 1000 V

Capacitance @ Vr, F:: 30pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

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

S2MA-T FAQ

1.How can I place an order for S2MA-T through Aetrix?

Please submit a Request for Quotation (RFQ) for S2MA-T 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 S2MA-T reliable?

The price and inventory of S2MA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S2MA-T is usually 5 days.

3.What payment methods are accepted for S2MA-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S2MA-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S2MA-T?

S2MA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S2MA-T 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 S2MA-T?

For technical support, including S2MA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S2MA-T requirements.

6.How does Aetrix verify that S2MA-T is sourced from the original manufacturer or authorized distributors?

All S2MA-T 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 S2MA-T meets industry standards.

7.What is the process for return or replacement of S2MA-T?

All S2MA-T units undergo pre-shipment inspection (PSI). If there is an issue with S2MA-T, 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 S2MA-T part is unused and in its original packaging.

Return procedure for S2MA-T:

1.Submit a request within 90 days.

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

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