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Taiwan Semiconductor Corporation S12GC V7G
- Part No.:
- S12GC V7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
S12GC V7G.pdf
- Description:
- DIODE GEN PURP 400V 12A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,530
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Product details
Overview
S12GC V7G 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 - deployed in switching mode power supplies and AC/DC adapters.
For engineers reviewing the S12GC V7G datasheet, S12GC V7G pinout, S12GC V7G application, or S12GC V7G 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 (3,000 pcs).
Technical Context
The S12GC V7G is a single-die, standard recovery rectifier optimized for high-current, medium-voltage DC output stages. 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 transients.
Thermally, it leverages the DO-214AB (SMC) package's low RθJL (9 °C/W) for efficient heat conduction to PCB copper, while its RθJA of 44 °C/W reflects performance in still-air conditions - critical for compact, convection-cooled SMPS designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Avg) | 12 A - supports continuous output current in 100–300 W SMPS front-end rectification |
| VRRM | 400 V - rated for universal-input (85–265 VAC) bridge rectification with margin |
| IFSM (8.3 ms) | 300 A - withstands inrush surges during cold-start without degradation |
| VF @ 12 A, 25°C | ≤1.1 V - limits conduction loss to ≤13.2 W per device at full load |
| TJ max | +150°C - enables operation in sealed or high-ambient industrial enclosures |
| RθJL | 9 °C/W - allows direct thermal coupling to large copper pour for passive cooling |
| MSL Level | Level 1 (per J-STD-020) - no bake required before reflow assembly |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode-indicating band; matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (lead 1) | Input terminal for AC or positive-side connection | Accepts incoming current during forward conduction; tied to transformer secondary or bridge input |
| Cathode (lead 2) | Output terminal for DC or negative-side connection | Delivers rectified current to bulk capacitor; 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 across temperature and humidity stress |
| Low VF (≤1.1 V @ 12 A) | Reduces power dissipation by ~15% vs. comparable 12 A rectifiers with VF ≥1.25 V |
| High IFSM (300 A) | Eliminates need for external surge limiting in most adapter-level input stages |
| MSL Level 1 | Enables direct placement into high-volume SMT lines without pre-bake or dry-pack handling |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU Directive 2011/65/EU for environmentally regulated end equipment |
Applications
| Switching Mode Power Supply (SMPS) | AC/DC Adapters |
|---|---|
Use Scenario: Primary-side full-wave rectification in offline 100–250 W open-frame SMPS. IC Role / Device Role / Timing Role: Standard recovery rectifier converting AC line input to unregulated DC bus. Use Value: 400 V VRRM provides 2× safety margin over 265 VAC peak (375 V), and 300 A IFSM handles transformer inrush without derating. | Use Scenario: Output-stage rectification in universal-input wall adapters (e.g., 12 V/5 A). IC Role / Device Role / Timing Role: Secondary-side freewheeling or synchronous rectification support diode. Use Value: Low VF minimizes heat buildup in compact plastic housings; MSL Level 1 simplifies automated assembly. |
| LED Lighting Drivers | DC-DC Converters |
Use Scenario: Input rectification in constant-current LED drivers for commercial downlights. IC Role / Device Role / Timing Role: Bridge rectifier component in non-isolated buck-derived topologies. Use Value: +150°C TJ rating sustains reliability in thermally constrained aluminum-core PCBs near high-power LEDs. | Use Scenario: Output rectification in isolated flyback or forward converters for industrial sensors. IC Role / Device Role / Timing Role: High-current output rectifier delivering regulated 5–24 V DC. Use Value: RθJL = 9 °C/W enables direct thermal path to heatsink pad, reducing thermal rise by ≥12°C vs. higher-Rθ alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH12R06DJF | 600 V VRRM, TO-220AC package, VF = 1.15 V @ 12 A | Requires through-hole mounting and heatsink; higher VF increases conduction loss | Preferred where higher voltage margin or legacy through-hole layout exists |
| ON Semi MUR1240CT | 400 V VRRM, dual common-cathode configuration in TO-220AB, VF = 1.2 V @ 12 A | Dual-diode topology suits center-tapped transformer designs; larger footprint | Select when dual-output or interleaved rectification is needed |
Compared with STTH12R06DJF and MUR1240CT, the S12GC V7G offers superior SMT manufacturability (MSL 1, DO-214AB), lower VF, and smaller board area - making it optimal for space-constrained, high-volume adapter and lighting driver designs.
Availability
S12GC V7G is available at Aetrix Electronics and suitable for switching mode power supplies, AC/DC adapters, and LED lighting drivers requiring stable component supply, consistent parametric performance, and full RoHS/halogen-free compliance.
Supply support for S12GC V7G 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, and MOSFETs for industrial and consumer markets.
The S12GC V7G belongs to TSC's S12x series of high-current surface-mount rectifiers, engineered specifically for cost-sensitive, high-efficiency AC/DC conversion in compact power supplies and lighting systems.
FAQ
What is the maximum junction temperature rating for the S12GC V7G?
The S12GC V7G 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 reliable operation in enclosed or high-ambient environments typical of LED drivers and sealed adapters. Derating curves confirm usable current capacity down to 0 A at +150°C ambient with appropriate PCB copper area.
Is the S12GC V7G RoHS and halogen-free compliant?
Yes, the S12GC V7G is fully RoHS compliant per EU Directive 2011/65/EU and halogen-free per IEC 61249-2-21. These compliance statements are explicitly declared in the "Features" section of the TSC datasheet (Version D2102), and confirmed via material declarations published by Taiwan Semiconductor for the S12x family.
What does the 'V7G' suffix indicate in S12GC V7G?
The 'V7G' suffix in S12GC V7G denotes Taiwan Semiconductor's internal manufacturing code: 'V7' specifies wafer lot and process revision, and 'G' indicates green molding compound (halogen-free epoxy). This marking aligns with TSC's standard S12x series coding per the "Marking Diagram" page in datasheet Version D2102.
Can the S12GC V7G replace the S12JC or S12KC in a design?
No - the S12GC V7G is rated for 400 V VRRM only, whereas S12JC (600 V) and S12KC (800 V) have higher reverse voltage ratings. Substituting S12GC V7G in circuits designed for ≥600 V peak reverse stress risks premature breakdown. Voltage rating must match or exceed circuit requirements; cross-voltage substitution is not recommended without full electrical validation.
What is the thermal resistance from junction to lead (RθJL) for the S12GC V7G?
The junction-to-lead thermal resistance (RθJL) of the S12GC V7G is 9 °C/W, measured under standard test conditions per the "Thermal Performance" table in TSC's datasheet Version D2102. This value enables effective heat transfer to PCB copper pads and is critical for calculating safe operating area in thermally constrained layouts.
S12GC V7G 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 V7G FAQ
1.How can I place an order for S12GC V7G through Aetrix?
Please submit a Request for Quotation (RFQ) for S12GC V7G 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 V7G reliable?
The price and inventory of S12GC V7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S12GC V7G is usually 5 days.
3.What payment methods are accepted for S12GC V7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S12GC V7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S12GC V7G?
S12GC V7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S12GC V7G 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 V7G?
For technical support, including S12GC V7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S12GC V7G requirements.
6.How does Aetrix verify that S12GC V7G is sourced from the original manufacturer or authorized distributors?
All S12GC V7G 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 V7G meets industry standards.
7.What is the process for return or replacement of S12GC V7G?
All S12GC V7G units undergo pre-shipment inspection (PSI). If there is an issue with S12GC V7G, 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 V7G part is unused and in its original packaging.
Return procedure for S12GC V7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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