Taiwan Semiconductor Corporation S3A M6G
- Part No.:
- S3A M6G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
S3A M6G.pdf
- Description:
- DIODE GEN PURP 50V 3A DO214AB
- Quantity:
- Payment:

- Shipping:

Inventory:5,094
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Product details
Overview
S3A M6G from Taiwan Semiconductor is a 3 A, 50 V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring 100 A surge current capability, 1.15 V max forward voltage at 3 A, and 10 µA max reverse leakage at 25°C - used in AC/DC front-end rectification for compact switching power supplies.
For engineers reviewing the S3A M6G datasheet, S3A M6G pinout, S3A M6G application, or S3A M6G equivalent, key selection criteria include repetitive peak reverse voltage (50 V), thermal resistance (RθJL = 13 °C/W), junction temperature range (–55 to +150 °C), and RoHS/halogen-free compliance for industrial-grade SMPS designs.
Technical Context
This single-die standard recovery rectifier operates with a 1500 ns reverse recovery time under IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A conditions and exhibits 60 pF junction capacitance at 1 MHz and 4.0 V reverse bias. Its glass-passivated junction ensures stable performance across –55 to +150 °C ambient operation.
The DO-214AB (SMC) package delivers 47 °C/W junction-to-ambient thermal resistance and supports automated placement with matte tin-plated leads compliant to J-STD-002 solderability and JESD 201 Class 2 whisker resistance. Polarity is marked by a cathode band.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Avg) | 3 A - continuous forward current rating defines maximum steady-state conduction capacity in DC output stage |
| VRRM | 50 V - peak repetitive reverse voltage sets maximum AC input voltage tolerance before breakdown |
| IFSM (t=8.3ms) | 100 A - non-repetitive surge current handling enables robustness against line transients and startup inrush |
| VF (max @ 3A, 25°C) | 1.15 V - forward voltage drop directly impacts conduction loss and thermal design in high-efficiency SMPS |
| IR (max @ 50V, 25°C) | 10 µA - low reverse leakage preserves efficiency in high-impedance hold-up or standby circuits |
| RθJL | 13 °C/W - junction-to-lead thermal resistance determines heatsinking requirements when mounted on PCB copper |
| trr | 1500 ns - reverse recovery time influences switching losses and EMI generation in 50–100 kHz SMPS topologies |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode-indicated polarity; molded plastic body meets UL 94V-0, weight ≈ 0.210 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC input or transformer secondary side; must withstand full surge current and thermal stress |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to output capacitor or ground return; carries full load current and defines reverse voltage standoff |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable long-term reliability and reduced parameter drift under thermal cycling and humidity exposure |
| Moisture sensitivity level 1 | Eliminates need for dry-packaging or baking prior to reflow, simplifying SMT assembly logistics |
| Matte tin-plated leads | Guarantees consistent solder wetting and intermetallic formation per J-STD-002, reducing voiding risk |
| J-STD-201 Class 2 whisker resistance | Prevents conductive filament growth under compressive stress, critical for automotive and industrial field life |
| Halogen-free & RoHS compliant | Meets global environmental regulations without compromising thermal or electrical performance |
Applications
| AC/DC Adapter Rectification | LED Driver Input Stage |
|---|---|
Use Scenario: 5–24 V output wall adapters converting universal AC input (90–264 VAC) to regulated DC. IC Role / Device Role / Timing Role: Primary-side uncontrolled rectifier converting transformer secondary AC to pulsating DC before bulk capacitor filtering. Use Value: 3 A average current rating and 100 A surge capability handle universal input surges; 1.15 V VF minimizes conduction loss in thermally constrained plastic enclosures. | Use Scenario: Constant-current LED drivers for commercial lighting, operating from rectified 120/230 VAC mains. IC Role / Device Role / Timing Role: Bridge or single-diode rectifier in offline flyback or buck-derived topologies feeding high-voltage DC bus. Use Value: 50 V VRRM suffices for 120 VAC applications with safety margin; DO-214AB footprint allows dense layout while RθJL = 13 °C/W supports thermal management on minimal copper area. |
| Industrial SMPS Input Stage | DC-DC Converter Front-End |
Use Scenario: 24 V or 48 V output industrial power supplies requiring >100 khr lifetime under 50–70 °C ambient. IC Role / Device Role / Timing Role: Input rectifier in dual-switch forward or half-bridge converters with active PFC pre-regulation. Use Value: –55 to +150 °C junction rating and JESD 201 Class 2 whisker resistance ensure reliability in unventilated control cabinets; glass passivation prevents parametric shift over 10+ years. | Use Scenario: Isolated DC-DC modules (e.g., 48 V to 12 V) fed from intermediate bus in telecom or server systems. IC Role / Device Role / Timing Role: Secondary-side synchronous or standard rectifier in center-tapped or full-wave configurations. Use Value: 60 pF junction capacitance limits ringing during turn-off; 1500 ns trr balances EMI and efficiency in 200–500 kHz designs without requiring snubbers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MUR350 | Ultrafast recovery (trr ≈ 75 ns), higher VF (1.3 V typ), same DO-214AB package and 3 A/50 V ratings | Better suited for higher-frequency (>200 kHz) topologies where switching loss dominates conduction loss | Select MUR350 only if trr-driven EMI or efficiency gain justifies higher VF penalty and cost premium |
| Vishay VS-3A50 | Standard recovery (trr ≈ 1500 ns), identical VF (1.15 V max), same 3 A/50 V/DO-214AB specs but halogen-containing molding compound | Acceptable where RoHS/halogen-free compliance is not mandated; may require requalification for new designs | VS-3A50 is functionally interchangeable but requires review of environmental compliance documentation for final BOM approval |
Compared with MUR350 and VS-3A50, the S3A M6G provides optimal balance of low VF, industry-standard trr, and full halogen-free/RoHS compliance - making it preferred for cost-sensitive, thermally constrained, and environmentally regulated industrial and lighting SMPS designs.
Availability
S3A M6G is available at Aetrix Electronics and suitable for AC/DC adapters, LED driver input stages, and industrial SMPS requiring stable component supply with full traceability and long-lifecycle support.
Supply support for S3A M6G 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 S3A M6G belongs to TSC's S3x series of surface-mount standard recovery rectifiers, engineered specifically for high-reliability, cost-optimized AC/DC conversion in space-constrained power supplies.
FAQ
What is the maximum junction temperature rating for the S3A M6G?
The S3A M6G has a maximum junction temperature (TJ) rating of +150 °C, with an operational range from –55 to +150 °C. This rating allows reliable operation in enclosed industrial power supplies and LED drivers where ambient temperatures exceed 70 °C. Thermal design must ensure that actual junction temperature under worst-case load and ambient conditions remains within this limit to prevent premature failure.
Does the S3A M6G have a halogen-free construction?
Yes, the S3A M6G uses halogen-free molding compound and complies with IEC 61249-2-21. This is confirmed in the "Features" section of the official Taiwan Semiconductor datasheet (Version O2301), which explicitly states "Halogen-free" alongside RoHS compliance - critical for meeting EU and regional environmental directives in end equipment.
What is the reverse recovery time (trr) specification for the S3A M6G?
The S3A M6G has a reverse recovery time (trr) of 1500 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions. This value is specified in the Electrical Specifications table of the Taiwan Semiconductor datasheet and reflects its classification as a standard (not ultrafast) recovery rectifier, appropriate for 50–150 kHz SMPS designs.
Is the S3A M6G pin-compatible with other S3x series devices like S3M or S3G?
Yes, all S3x series devices including S3A M6G, S3G, and S3M share identical DO-214AB (SMC) package dimensions, pinout, and mechanical footprint. The only differences are VRRM ratings (50 V for S3A M6G vs. 400 V for S3G and 1000 V for S3M), enabling direct substitution when voltage requirements change - provided thermal and surge margins remain adequate.
What does the "M6G" suffix indicate in S3A M6G?
The "M6G" suffix in S3A M6G is Taiwan Semiconductor's internal date/batch code, where "M6" denotes manufacturing week/year (e.g., week 6 of 2023 or 2024) and "G" identifies the fabrication line or process variant. It does not affect electrical specifications - all S3A devices, regardless of suffix, meet the same rated parameters defined in the S3A–S3M family datasheet.
S3A M6G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.15 V @ 3 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 1.5 µs
- Current - Reverse Leakage @ Vr:
- 5 µA @ 50 V
- Capacitance @ Vr, F:
- 30pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S3A M6G FAQ
1.How can I place an order for S3A M6G through Aetrix?
Please submit a Request for Quotation (RFQ) for S3A M6G 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 S3A M6G reliable?
The price and inventory of S3A M6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S3A M6G is usually 5 days.
3.What payment methods are accepted for S3A M6G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S3A M6G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S3A M6G?
S3A M6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S3A M6G 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 S3A M6G?
For technical support, including S3A M6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S3A M6G requirements.
6.How does Aetrix verify that S3A M6G is sourced from the original manufacturer or authorized distributors?
All S3A M6G 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 S3A M6G meets industry standards.
7.What is the process for return or replacement of S3A M6G?
All S3A M6G units undergo pre-shipment inspection (PSI). If there is an issue with S3A M6G, 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 S3A M6G part is unused and in its original packaging.
Return procedure for S3A M6G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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