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

Taiwan Semiconductor Corporation S12MC V7G

Name: S12MC V7G
Brand: Taiwan Semiconductor Corporation
SKU: S12MC V7G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S12MC V7G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: S12MC V7G.pdf

Description:: DIODE GEN PURP 1KV 12A DO214AB

Quantity:: RFQ Add To RFQ list

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Inventory:1,590

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Product details

Overview

S12MC V7G from Taiwan Semiconductor is a 12A, 1000V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring glass-passivated junction, low 1.1V forward voltage at 12A, and 300A surge capability - deployed in high-efficiency AC/DC converters and industrial SMPS front-ends.

For engineers reviewing the S12MC V7G datasheet, S12MC V7G pinout, S12MC V7G application, or S12MC V7G equivalent, key selection criteria include verified 1000V V_RRM, thermal resistance R_θJL = 9°C/W, JESD201 Class 2 whisker compliance, and RoHS/halogen-free qualification for high-reliability power conversion designs.

Technical Context

This single-die standard recovery rectifier operates with a maximum junction temperature of 150°C and supports repetitive reverse voltages up to 1000V. Its 1.1V typical forward voltage at 12A and 250µA reverse leakage at 125°C enable efficient conduction and low standby loss in continuous-duty power stages.

The device uses glass passivation for junction stability, matte tin-plated leads compliant with J-STD-002 solderability, and meets UL 94V-0 flammability rating. Polarity is marked by cathode band; moisture sensitivity level is J-STD-020 Level 1 - suitable for standard reflow without baking.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1000 V - blocks full-wave rectified 707V RMS input without breakdown
I_F	12 A - continuous average forward current rating at T_A = 75°C with adequate heatsinking
I_FSM	300 A - withstands 8.3ms half-sine surge, enabling robust inrush handling in offline supplies
V_F	1.1 V max @ 12A, 25°C - reduces conduction loss and thermal stress in high-current paths
R_θJL	9 °C/W - enables direct thermal path to PCB copper, supporting compact layout without external heatsink
C_J	78 pF @ 4V - limits high-frequency switching noise and EMI in fast-switching topologies

Pinout & Package

Package: DO-214AB (SMC), surface-mount, cathode-indicated by band, matte tin-plated leads, 0.270g weight.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Input current entry point	Connected to AC line or transformer secondary; must handle full surge current and thermal cycling
Cathode	Output current exit point	Drives bulk capacitor or downstream converter stage; polarity marking ensures correct PCB orientation

Key Features

Feature	Design Value
Glass-passivated junction	Enhances long-term reliability under thermal stress and humidity exposure in industrial environments
J-STD-020 Level 1 moisture sensitivity	Eliminates pre-bake requirement during SMT assembly, reducing process complexity and cost
JESD 201 Class 2 whisker resistance	Prevents tin whisker growth in high-voltage, long-life applications such as LED drivers and UPS systems
UL 94V-0 molding compound	Meets flame-retardancy requirements for enclosed power supplies and safety-critical end equipment

Applications

Industrial SMPS Front-End	LED Driver Input Stage
Use Scenario: Rectifying 380–480VAC three-phase input in telecom rectifiers and server PSUs. IC Role / Device Role / Timing Role: Primary AC/DC conversion element handling 12A continuous current and 300A surges. Use Value: 1000V V_RRM provides 2× safety margin over peak line voltage, minimizing failure risk during transients.	Use Scenario: Bridge rectification in constant-current LED drivers for street lighting and high-bay fixtures. IC Role / Device Role / Timing Role: High-voltage input rectifier operating continuously at elevated ambient temperatures. Use Value: 150°C T_JMAX and 9°C/W R_θJL allow stable operation without forced air cooling in sealed enclosures.
AC-DC Adapter Secondary	DC-DC Converter Input Protection
Use Scenario: Output rectification in universal-input 90–264VAC adapters powering consumer electronics. IC Role / Device Role / Timing Role: Fast-recovery rectifier delivering low-loss DC output after transformer isolation. Use Value: 1.1V V_F minimizes conduction loss at 12A, improving efficiency and reducing thermal footprint.	Use Scenario: Reverse-polarity and overvoltage protection at input of isolated DC-DC modules in industrial PLCs. IC Role / Device Role / Timing Role: Standby-blocking diode preventing backfeed and fault propagation. Use Value: 250µA I_R at 125°C ensures negligible leakage current in hot, unventilated control cabinets.

Industrial SMPS Front-End

LED Driver Input Stage

Use Scenario: Rectifying 380–480VAC three-phase input in telecom rectifiers and server PSUs.

IC Role / Device Role / Timing Role: Primary AC/DC conversion element handling 12A continuous current and 300A surges.

Use Value: 1000V V_RRM provides 2× safety margin over peak line voltage, minimizing failure risk during transients.

Use Scenario: Bridge rectification in constant-current LED drivers for street lighting and high-bay fixtures.

IC Role / Device Role / Timing Role: High-voltage input rectifier operating continuously at elevated ambient temperatures.

Use Value: 150°C T_JMAX and 9°C/W R_θJL allow stable operation without forced air cooling in sealed enclosures.

AC-DC Adapter Secondary

DC-DC Converter Input Protection

Use Scenario: Output rectification in universal-input 90–264VAC adapters powering consumer electronics.

IC Role / Device Role / Timing Role: Fast-recovery rectifier delivering low-loss DC output after transformer isolation.

Use Value: 1.1V V_F minimizes conduction loss at 12A, improving efficiency and reducing thermal footprint.

Use Scenario: Reverse-polarity and overvoltage protection at input of isolated DC-DC modules in industrial PLCs.

IC Role / Device Role / Timing Role: Standby-blocking diode preventing backfeed and fault propagation.

Use Value: 250µA I_R at 125°C ensures negligible leakage current in hot, unventilated control cabinets.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH12R06DJF	600V V_RRM, 12A, TO-220AC package, faster recovery (t_rr = 65ns)	Limited to ≤600V systems; requires through-hole mounting and heatsink	Select when faster switching and higher thermal mass are prioritized over surface-mount integration
VS-12EWH06FN-M3	600V V_RRM, 12A, DO-214AB, ultra-low V_F (0.92V typ)	Lower voltage rating; optimized for efficiency-critical 230VAC inputs, not 400V+ systems	Choose for 230VAC-derived supplies where conduction loss dominates over voltage margin

Compared with STTH12R06DJF and VS-12EWH06FN-M3, the S12MC V7G uniquely delivers 1000V blocking capability in a surface-mount DO-214AB package - essential for 400–690VAC industrial and three-phase applications where voltage margin and automated assembly are non-negotiable.

Availability

S12MC V7G is available at Aetrix Electronics and suitable for industrial SMPS front-ends, LED driver input stages, and AC-DC adapter secondary circuits requiring stable component supply and long-lifecycle support.

Supply support for S12MC 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, serving global power, automotive, and industrial markets since 1979.

The S12MC V7G belongs to TSC's S12x series of high-current, high-voltage rectifiers designed specifically for ruggedized AC/DC conversion in harsh-environment power supplies and lighting systems.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) rated for S12MC V7G?

The S12MC V7G is rated for 1000V V_RRM, confirmed in the Absolute Maximum Ratings table on page 2 of the official Taiwan Semiconductor datasheet (Version D2102). This value applies specifically to the S12MC variant - other members of the S12x family (e.g., S12GC, S12JC) have lower V_RRM ratings. The 1000V rating enables use in 690VAC three-phase rectification with appropriate safety margin.

Does S12MC V7G meet RoHS and halogen-free requirements?

Yes, the S12MC V7G is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the Features section of the Taiwan Semiconductor datasheet. These qualifications are verified for the DO-214AB (SMC) package configuration and apply to all units shipped under this part number.

What is the thermal resistance from junction to lead (R_θJL) for S12MC V7G?

The S12MC V7G has a typical junction-to-lead thermal resistance (R_θJL) of 9°C/W, specified in the Thermal Performance table on page 2 of the datasheet. This value is measured under standard test conditions and reflects the device's ability to transfer heat directly from the die to the PCB copper via the leads - critical for thermally constrained SMT layouts.

Is S12MC V7G suitable for automated SMT placement?

Yes, the S12MC V7G is explicitly designed for automated placement, as noted in its Features list. Its DO-214AB (SMC) package, matte tin-plated leads compliant with J-STD-002, and J-STD-020 Level 1 moisture sensitivity eliminate pre-bake and support standard reflow profiles - making it compatible with high-speed pick-and-place equipment.

What is the forward voltage (V_F) of S12MC V7G at rated current?

The S12MC V7G has a maximum forward voltage of 1.1V at 12A and 25°C, per the Electrical Specifications table (page 2). This value is measured under pulsed conditions (PW = 0.3ms) and represents worst-case conduction loss - actual V_F decreases slightly at lower currents and increases with junction temperature.

S12MC 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):: 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 V7G FAQ

1.How can I place an order for S12MC V7G through Aetrix?

Please submit a Request for Quotation (RFQ) for S12MC 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 S12MC V7G reliable?

The price and inventory of S12MC V7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S12MC V7G is usually 5 days.

3.What payment methods are accepted for S12MC V7G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S12MC V7G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S12MC V7G?

S12MC V7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S12MC 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 S12MC V7G?

For technical support, including S12MC V7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S12MC V7G requirements.

6.How does Aetrix verify that S12MC V7G is sourced from the original manufacturer or authorized distributors?

All S12MC 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 S12MC V7G meets industry standards.

7.What is the process for return or replacement of S12MC V7G?

All S12MC V7G units undergo pre-shipment inspection (PSI). If there is an issue with S12MC 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 S12MC V7G part is unused and in its original packaging.

Return procedure for S12MC V7G:

1.Submit a request within 90 days.

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

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