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Taiwan Semiconductor Corporation S12MC M6G
- Part No.:
- S12MC M6G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
S12MC M6G.pdf
- Description:
- DIODE GEN PURP 12A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,854
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Product details
Overview
S12MC M6G from Taiwan Semiconductor is a 12A, 1000V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring glass-passivated junction, 1.1V max forward voltage at 12A, 300A peak surge capability, and 150°C maximum junction temperature - deployed in high-efficiency AC/DC converters and industrial SMPS front-ends.
For engineers reviewing the S12MC M6G datasheet, S12MC M6G pinout, S12MC M6G application, or S12MC M6G equivalent, key selection criteria include verified 1000V VRRM, J-STD-020 Level 1 moisture sensitivity, UL 94V-0 molding compound, and RoHS/halogen-free compliance for high-reliability power conversion designs.
Technical Context
The S12MC M6G is a single-die, unidirectional silicon rectifier optimized for high-voltage, high-current switching applications. Its glass-passivated junction ensures stable reverse leakage (<1 µA @ 25°C, <250 µA @ 125°C) and robust surge tolerance (300A, 8.3ms half-sine).
Thermal performance is defined by RθJL = 9°C/W and RθJA = 44°C/W, enabling reliable operation up to 150°C junction temperature in forced-air or PCB-conducted cooling configurations typical of compact adapter and lighting driver layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports input rectification in universal-line (85–265 VAC) SMPS with ≥2× safety margin |
| IF | 12 A continuous - delivers rated output power in 100–300 W converter topologies without derating at 75°C ambient |
| IFSM | 300 A (8.3 ms) - withstands cold-start inrush and transient line surges without failure |
| VF | ≤1.1 V @ 12 A, 25°C - minimizes conduction loss (≤13.2 W) and thermal stress in high-duty-cycle operation |
| TJMAX | 150°C - enables use in sealed enclosures or high-ambient industrial environments with proper heatsinking |
| CJ | 78 pF @ 4 V - limits high-frequency switching noise and EMI generation in >100 kHz PFC stages |
Pinout & Package
DO-214AB (SMC) surface-mount package with matte tin-plated leads, cathode band polarity marking, and UL 94V-0 compliant molding compound. Weight: 0.270 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (lead 1) | Input current entry point | Connected to AC input or transformer secondary; must handle full RMS current and peak surge |
| Cathode (lead 2) | Output current exit point | Feeds bulk capacitor or downstream switch; marked by visible cathode band on body |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term stability of reverse leakage and breakdown voltage under thermal cycling and humidity exposure |
| Moisture sensitivity level 1 | Eliminates bake requirements before reflow; compatible with standard SMT assembly lines without dry-pack handling |
| High IFSM/IF ratio (25:1) | Provides margin against repetitive line transients and startup surges without derating or parallel devices |
| Halogen-free per IEC 61249-2-21 | Meets environmental compliance for export markets including EU RoHS and JEITA EG-701 |
Applications
| Industrial SMPS Front-End | LED Driver Input Stage |
|---|---|
Use Scenario: Rectifying 230 VAC mains input in 200 W industrial power supply with active PFC. IC Role / Device Role / Timing Role: Primary AC-to-DC conversion element; conducts during positive half-cycles only. Use Value: 1000 V VRRM provides 3.5× margin over peak line voltage (325 V), reducing risk of avalanche failure during brownouts or surges. | Use Scenario: Input rectification in constant-current LED drivers for street lighting (150–250 W). IC Role / Device Role / Timing Role: Unidirectional current path feeding bulk storage capacitor; operates at 50/60 Hz line frequency. Use Value: Low 1.1 V VF reduces conduction loss by 18% vs. legacy 1.35 V diodes, improving system efficiency from 89% to 90.2%. |
| Universal Input Adapter | DC-DC Converter Input Protection |
Use Scenario: Dual-range (100–240 VAC) laptop adapter with foldback overvoltage protection. IC Role / Device Role / Timing Role: Bridge input rectifier (used as single diode in voltage-doubler configuration). Use Value: 300 A IFSM handles 10× rated current during cold-start, preventing fuse blowout and enabling smaller input fusing. | Use Scenario: Reverse-polarity and backfeed protection at 48 V DC input of isolated flyback converter. IC Role / Device Role / Timing Role: Series blocking diode preventing battery backfeed into upstream DC source. Use Value: 150°C TJMAX allows operation in confined chassis with 85°C ambient, eliminating need for external thermal monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1210D (STMicroelectronics) | 12 A, 1000 V; VF = 1.15 V @ 12 A; RθJA = 40°C/W; DO-214AB | Slightly higher VF increases conduction loss by ~0.6 W at full load | Preferred where tighter VF distribution or ST-qualified automotive grade required |
| ES1JHM3/84A (Vishay) | 12 A, 600 V; VF = 1.05 V @ 12 A; RθJA = 42°C/W; DO-214AB | Lower VRRM restricts use to ≤265 VAC inputs without derating | Valid alternative only in 115 VAC-only or regulated DC-input systems |
Compared with STTH1210D and ES1JHM3/84A, the S12MC M6G offers superior 1000 V rating for universal-input designs and lower thermal resistance than ES1JHM3/84A, making it optimal for space-constrained, high-ambient industrial converters requiring no voltage derating.
Availability
S12MC M6G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and AC/DC adapters requiring stable component supply, long-lifecycle support, and full RoHS/halogen-free compliance.
Supply support for S12MC 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 industrial, computing, and consumer markets since 1979.
The S12GC–S12MC series was developed specifically for high-reliability, high-voltage rectification in compact surface-mount power supplies - emphasizing surge robustness, thermal stability, and automated assembly compatibility.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for the S12MC M6G?
The S12MC M6G has a VRRM of 1000 V, confirmed in the Absolute Maximum Ratings table of Taiwan Semiconductor's D2102 datasheet. This rating applies across the full operating temperature range (−55°C to +150°C) and defines the highest reverse voltage the device can block repeatedly without breakdown. It is the defining parameter distinguishing S12MC from lower-voltage variants like S12GC (400 V) and S12KC (800 V).
Does the S12MC M6G meet RoHS and halogen-free requirements?
Yes, the S12MC M6G is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the official datasheet. The molding compound is UL 94V-0 rated, and terminals are matte tin-plated per J-STD-002, supporting lead-free reflow soldering without compromising environmental compliance.
What is the forward voltage drop (VF) specification for the S12MC M6G at rated current?
The S12MC M6G has a maximum forward voltage of 1.1 V at IF = 12 A and TJ = 25°C, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) to avoid self-heating effects. At elevated junction temperatures (e.g., 125°C), VF decreases slightly due to negative temperature coefficient of silicon diodes.
Is the S12MC M6G suitable for use in high-surge environments such as motor drive input stages?
Yes, the S12MC M6G supports IFSM = 300 A for an 8.3 ms half-sine surge, making it suitable for motor drive input rectification where high inrush currents occur. Its glass-passivated junction and robust thermal design (RθJL = 9°C/W) ensure reliability under repeated surge events, provided PCB layout provides adequate copper area for heat dissipation.
What package type and polarity marking does the S12MC M6G use?
The S12MC M6G uses the DO-214AB (SMC) surface-mount package with cathode polarity indicated by a visible band on the device body. Leads are matte tin-plated and solderable per J-STD-002. The package meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1, enabling direct placement without baking.
S12MC 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):
- 1000 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 @ 1000 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
S12MC M6G FAQ
1.How can I place an order for S12MC M6G through Aetrix?
Please submit a Request for Quotation (RFQ) for S12MC 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 S12MC M6G reliable?
The price and inventory of S12MC M6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S12MC M6G is usually 5 days.
3.What payment methods are accepted for S12MC M6G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S12MC M6G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S12MC M6G?
S12MC M6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S12MC 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 S12MC M6G?
For technical support, including S12MC M6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S12MC M6G requirements.
6.How does Aetrix verify that S12MC M6G is sourced from the original manufacturer or authorized distributors?
All S12MC 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 S12MC M6G meets industry standards.
7.What is the process for return or replacement of S12MC M6G?
All S12MC M6G units undergo pre-shipment inspection (PSI). If there is an issue with S12MC 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 S12MC M6G part is unused and in its original packaging.
Return procedure for S12MC M6G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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