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Taiwan Semiconductor Corporation S12GC M6G
- Part No.:
- S12GC M6G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
S12GC M6G.pdf
- Description:
- DIODE GEN PURP 400V 12A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,836
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Product details
Overview
S12GC M6G from Taiwan Semiconductor is a 12A, 400V surface-mount glass-passivated silicon rectifier diode in DO-214AB (SMC) package, featuring low forward voltage drop (≤1.1 V at 12 A), high surge current capability (300 A), and junction temperature rating up to +150°C - used in primary-side rectification of offline SMPS and AC/DC adapters.
For engineers reviewing the S12GC M6G datasheet, S12GC M6G pinout, S12GC M6G application, or S12GC M6G equivalent, key selection criteria include repetitive peak reverse voltage (400 V), thermal resistance (RθJL = 9 °C/W), moisture sensitivity level (MSL 1), RoHS/halogen-free compliance, and tape-and-reel packaging for automated assembly.
Technical Context
The S12GC M6G is a single-die, standard recovery rectifier optimized for high-efficiency, high-current DC output stages in switching power supplies. Its glass-passivated junction ensures stable reverse leakage (<1 µA at 25°C, <250 µA at 125°C) and robust surge tolerance under 8.3 ms half-sine stress.
Thermally, it delivers RθJL = 9 °C/W and RθJA = 44 °C/W, enabling reliable operation at full 12 A average forward current with appropriate PCB copper area. Polarity is marked by a cathode band on the DO-214AB body.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Avg) | 12 A - supports continuous output current in 100–300 W SMPS designs without forced air cooling |
| VRRM | 400 V - rated for universal-input (85–265 VAC) flyback and forward converter primary rectification |
| IFSM | 300 A - withstands inrush surges during cold-start and line transients per IEC 61000-4-5 |
| VF @ 12 A | ≤1.1 V - reduces conduction loss and improves efficiency vs. higher-VF alternatives |
| TJ max | +150 °C - enables operation in compact, thermally constrained enclosures |
| RθJL | 9 °C/W - allows direct heat transfer to PCB copper pour or heatsink via cathode/anode pads |
| CJ | 78 pF - limits high-frequency switching noise and EMI in >100 kHz topologies |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, polarity indicated by cathode band. Weight: 0.270 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward conduction path | Connected to transformer secondary or bridge output; requires adequate trace width for 12 A RMS |
| Cathode | Output terminal for forward conduction path | Connected to bulk capacitor input; serves as main thermal interface to PCB copper pour |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term reliability and stable IR under humid or high-bias stress conditions |
| MSL Level 1 | Enables unlimited floor life and reflow compatibility without baking prior to assembly |
| UL 94V-0 molding compound | Meets flammability safety requirements for enclosed power supplies and lighting drivers |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth in high-reliability industrial and telecom applications |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| Offline AC/DC Adapters | LED Driver Power Stages |
|---|---|
Use Scenario: 12 V/5 A universal-input wall adapter for consumer electronics. IC Role / Device Role / Timing Role: Primary-side output rectifier in discontinuous conduction mode (DCM) flyback topology. Use Value: Low VF (≤1.1 V) reduces power loss by ~1.3 W vs. 1.3 V diodes at 12 A, improving thermal margin and no-load efficiency. | Use Scenario: Constant-voltage LED driver for commercial downlights (24 V/3 A). IC Role / Device Role / Timing Role: Secondary-side rectifier in quasi-resonant (QR) flyback delivering regulated DC bus. Use Value: 300 A IFSM handles lamp hot-plug surges; DO-214AB footprint enables compact board layout with minimal thermal pad area. |
| Industrial SMPS Modules | DC-DC Converter Inputs |
Use Scenario: 24 V/10 A open-frame power supply for PLC I/O modules. IC Role / Device Role / Timing Role: Output rectifier in forward converter with synchronous rectification assist. Use Value: RθJL = 9 °C/W allows direct thermal coupling to chassis-mounted heatsink, sustaining 12 A at +70°C ambient. | Use Scenario: Input-stage rectifier in isolated 48 V-to-12 V DC-DC brick for telecom equipment. IC Role / Device Role / Timing Role: Bulk rectifier feeding active clamp forward or LLC resonant converter. Use Value: 400 V VRRM provides 2× safety margin over 230 VAC peak (325 V), ensuring robustness against line spikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH12R06DJF | 600 V VRRM, TO-277A package, VF = 1.15 V @ 12 A | Higher voltage rating suits 277 VAC lighting systems; larger footprint than DO-214AB | Choose when system requires >400 V margin or uses TO-277A-compatible layout |
| ON Semi MUR1240CT | 400 V VRRM, dual common-cathode configuration in TO-220AC, VF = 1.25 V @ 12 A | Dual-diode structure enables center-tapped transformer use; through-hole mounting only | Choose for legacy through-hole designs or dual-output SMPS requiring shared cathode |
Compared with STTH12R06DJF and MUR1240CT, the S12GC M6G offers lowest profile, MSL 1 compatibility, and smallest PCB footprint among 12 A/400 V rectifiers - critical for space-constrained adapter and LED driver designs.
Availability
S12GC M6G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and AC/DC adapters requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing.
Supply support for S12GC 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, specializing in power rectifiers, TVS diodes, MOSFETs, and bipolar transistors.
The S12GC M6G belongs to TSC's S12x series of high-current surface-mount rectifiers, designed specifically for cost-sensitive, high-volume AC/DC power conversion where thermal efficiency, assembly compatibility, and regulatory compliance are critical.
FAQ
What is the maximum junction temperature rating for the S12GC M6G?
The S12GC M6G has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings table in the official TSC datasheet Version D2102. This allows sustained 12 A operation in ambient temperatures up to +70°C when mounted on ≥1 in² 2-oz copper with thermal vias. Derating curves confirm usable current drops to ~8 A at +100°C ambient.
Does the S12GC M6G meet RoHS and halogen-free requirements?
Yes, the S12GC M6G is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the "Features" section of the TSC datasheet. The molding compound is UL 94V-0 rated, and terminals are matte tin-plated to J-STD-002 solderability standards - all confirmed in the Mechanical Data and Ordering Information pages of Version D2102.
What is the forward voltage drop specification for the S12GC M6G at rated current?
The S12GC M6G has a maximum forward voltage (VF) of 1.1 V at IF = 12 A and TJ = 25°C, measured under pulse test conditions (PW = 0.3 ms). Typical VF is lower, but design margins must use the 1.1 V max value. At 125°C junction temperature, VF decreases slightly due to negative temperature coefficient of silicon.
Is the S12GC M6G suitable for automated SMT placement?
Yes, the S12GC M6G is explicitly optimized for automated placement, as noted in its "Features" list. Its DO-214AB (SMC) package has standardized dimensions, matte tin-plated leads compatible with lead-free reflow profiles, and MSL Level 1 rating - eliminating pre-bake requirements and supporting high-yield pick-and-place throughput in volume manufacturing.
What is the repetitive peak reverse voltage (VRRM) of the S12GC M6G?
The S12GC M6G has a repetitive peak reverse voltage (VRRM) of 400 V, as defined in the Absolute Maximum Ratings table of the TSC datasheet. This value is fixed per part number suffix 'GC' and distinguishes it from S12JC (600 V), S12KC (800 V), and S12MC (1000 V) variants in the same family.
S12GC 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):
- 400 V
- Current - Average Rectified (Io):
- 12A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 12 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 µA @ 400 V
- Capacitance @ Vr, F:
- 78pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S12GC M6G FAQ
1.How can I place an order for S12GC M6G through Aetrix?
Please submit a Request for Quotation (RFQ) for S12GC 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 S12GC M6G reliable?
The price and inventory of S12GC M6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S12GC M6G is usually 5 days.
3.What payment methods are accepted for S12GC M6G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S12GC M6G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S12GC M6G?
S12GC M6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S12GC 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 S12GC M6G?
For technical support, including S12GC M6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S12GC M6G requirements.
6.How does Aetrix verify that S12GC M6G is sourced from the original manufacturer or authorized distributors?
All S12GC 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 S12GC M6G meets industry standards.
7.What is the process for return or replacement of S12GC M6G?
All S12GC M6G units undergo pre-shipment inspection (PSI). If there is an issue with S12GC 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 S12GC M6G part is unused and in its original packaging.
Return procedure for S12GC M6G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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