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Taiwan Semiconductor Corporation S12MCHR7G
- Part No.:
- S12MCHR7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
S12MCHR7G.pdf
- Description:
- DIODE GEN PURP 1KV 12A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,011
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Product details
Overview
S12MCHR7G from Taiwan Semiconductor is a 12A, 1000V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring glass-passivated junction, low forward voltage drop (≤1.1 V at 12 A), and high surge capability (300 A IFSM). It serves as the main output rectifier in high-efficiency AC/DC converters and offline SMPS.
For engineers reviewing the S12MCHR7G datasheet, S12MCHR7G pinout, S12MCHR7G application, or S12MCHR7G equivalent, key selection criteria include peak reverse voltage rating (1000 V), thermal resistance (9 °C/W junction-to-lead), moisture sensitivity level (J-STD-020 Level 1), RoHS/halogen-free compliance, and tape-and-reel packaging for automated assembly.
Technical Context
This device is a single-die, standard recovery rectifier optimized for high-voltage, medium-current switching applications. Its glass-passivated junction ensures stable reverse leakage (<1 µA at 25°C, <250 µA at 125°C) and robust surge tolerance under repetitive 8.3 ms half-sine transients.
The DO-214AB (SMC) package provides 44 °C/W junction-to-ambient thermal resistance and supports automated placement with matte tin-plated leads compliant to J-STD-002. Polarity is marked by a cathode band, and the molding compound meets UL 94V-0.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - Maximum non-repetitive reverse voltage the device blocks without breakdown |
| IF | 12 A - Continuous average forward current at case temperature ≤75°C |
| IFSM | 300 A - Peak non-repetitive surge current survivable for 8.3 ms half-sine wave |
| VF | ≤1.1 V @ 12 A, 25°C - Low conduction loss enabling higher efficiency in high-frequency SMPS |
| RθJL | 9 °C/W - Enables direct thermal path to PCB copper, critical for power density in compact adapters |
| IR | ≤1 µA @ 25°C - Minimal leakage preserves standby power in energy-efficient designs |
| CJ | 78 pF @ 4 V - Junction capacitance impacts EMI filtering and snubber design in flyback topologies |
Pinout & Package
DO-214AB (SMC) surface-mount package with two terminals: anode and cathode. Cathode identified by molded band on body. Matte tin-plated leads meet J-STD-002 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward conduction | Connected to transformer secondary or switch node; must handle full load current and transient spikes |
| Cathode | Output terminal for forward conduction | Connected to output capacitor and load; polarity marking ensures correct orientation during automated placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enhances long-term reliability under humidity and thermal cycling, validated per J-STD-020 Level 1 |
| Low VF (≤1.1 V) | Reduces conduction losses by ~15% vs. comparable 1000 V rectifiers, improving adapter efficiency at full load |
| 300 A IFSM rating | Withstands cold-start surges and line-dip recovery without degradation in 60 Hz input SMPS |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally compliant manufacturing |
| DO-214AB mechanical robustness | UL 94V-0 molding compound and JESD201 Class 2 whisker resistance support industrial-grade field life |
Applications
| LED Driver Power Supply | Industrial AC/DC Adapter |
|---|---|
Use Scenario: Constant-current LED driver with offline flyback topology operating at 50–60 Hz input and 100 kHz switching frequency. IC Role / Device Role / Timing Role: Primary output rectifier converting high-voltage DC to low-voltage DC bus before current regulation stage. Use Value: 1000 V VRRM prevents breakdown during line surges; 9 °C/W RθJL allows thermal management without heatsink in sealed enclosures. | Use Scenario: 60 W industrial control power supply with universal AC input (85–265 VAC) and reinforced isolation. IC Role / Device Role / Timing Role: Secondary-side rectifier delivering regulated 24 VDC to PLC I/O modules. Use Value: ≤1 µA IR at 25°C minimizes no-load power draw; matte tin leads ensure reliable reflow soldering across batch production. |
| Server PSU Front-End | Smart Home AC-DC Module |
Use Scenario: High-density server power supply using active clamp forward or LLC resonant topology. IC Role / Device Role / Timing Role: Bulk rectification stage handling 12 A continuous output after PFC stage. Use Value: 300 A IFSM withstands inrush into large bulk capacitors; DO-214AB footprint enables dense PCB layout. | Use Scenario: Compact smart plug or Wi-Fi thermostat with integrated AC-DC conversion. IC Role / Device Role / Timing Role: Input rectifier feeding buck converter IC in space-constrained enclosure. Use Value: Halogen-free and RoHS compliance satisfies global consumer electronics regulatory requirements; J-STD-020 Level 1 simplifies factory handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-12EWH10 | Same 12 A / 1000 V rating; VF = 1.15 V max; RθJL = 10 °C/W; DO-214AB package | Higher VF increases conduction loss by ~50 mW at 12 A; slightly lower thermal performance | Acceptable where margin exists in thermal budget and efficiency targets allow 0.05 V higher VF |
| ON Semiconductor MUR1210CT | 12 A / 1000 V; ultrafast recovery (trr = 75 ns); TO-220AC package; VF = 1.7 V typical | Ultrafast trr reduces switching loss but increases VF; through-hole mounting requires different PCB layout | Preferred only when EMI reduction via faster recovery outweighs efficiency penalty and layout change cost |
Compared with VS-12EWH10, S12MCHR7G offers lower VF and better thermal resistance; versus MUR1210CT, it trades ultrafast recovery for lower conduction loss and surface-mount compatibility-critical for high-volume automated production of compact power supplies.
Availability
S12MCHR7G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and industrial AC/DC adapters requiring stable component supply, RoHS compliance, and J-STD-020 Level 1 handling.
Supply support for S12MCHR7G 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 since 1979.
The S12GC–S12MC family was designed specifically for high-reliability, high-voltage rectification in cost-sensitive, high-volume power conversion systems-including consumer adapters, industrial PSUs, and LED drivers-balancing performance, manufacturability, and regulatory compliance.
FAQ
What is the maximum junction temperature rating for S12MCHR7G?
The S12MCHR7G has a maximum junction temperature (TJ MAX) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet Version D2102. This rating applies under continuous operation with proper thermal management using the DO-214AB package's 9 °C/W junction-to-lead thermal resistance. Derating is required above 75°C case temperature per the forward current derating curve.
Does S12MCHR7G support lead-free reflow soldering?
Yes, S12MCHR7G features matte tin-plated leads qualified per J-STD-002 for solderability and compatible with standard lead-free reflow profiles (peak temperature up to 260°C). The device is rated J-STD-020 Level 1 for moisture sensitivity, eliminating bake requirements prior to assembly-enabling direct use in high-speed SMT lines without process modification.
Is S12MCHR7G halogen-free and RoHS compliant?
Yes, S12MCHR7G is both halogen-free per IEC 61249-2-21 and RoHS compliant per EU Directive 2011/65/EU. These certifications are explicitly stated in the Taiwan Semiconductor product documentation (Version D2102) and verified through material declarations. No brominated flame retardants or chlorine-based compounds are used in the molding compound or plating.
What is the reverse leakage current specification for S12MCHR7G at elevated temperature?
At TJ = 125°C and rated reverse voltage, S12MCHR7G exhibits a maximum reverse leakage current (IR) of 250 µA, as specified in the Electrical Specifications table of the Taiwan Semiconductor datasheet. At 25°C, IR is limited to 1 µA. This low leakage supports energy-efficient designs meeting strict no-load power standards such as DOE Level VI and EU CoC Tier 2.
Can S12MCHR7G be used as a direct replacement for S12KCHR7G in existing designs?
No-S12MCHR7G (1000 V VRRM) and S12KCHR7G (800 V VRRM) are distinct voltage-grade variants within the same S12x series. While both share identical DO-214AB packaging, pinout, and thermal characteristics, substituting S12MCHR7G for S12KCHR7G is permissible only if the circuit's reverse voltage stress exceeds 800 V. Using S12KCHR7G in place of S12MCHR7G risks catastrophic failure under 1000 V transients.
S12MCHR7G 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:
- Fast 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
S12MCHR7G FAQ
1.How can I place an order for S12MCHR7G through Aetrix?
Please submit a Request for Quotation (RFQ) for S12MCHR7G 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 S12MCHR7G reliable?
The price and inventory of S12MCHR7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S12MCHR7G is usually 5 days.
3.What payment methods are accepted for S12MCHR7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S12MCHR7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S12MCHR7G?
S12MCHR7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S12MCHR7G 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 S12MCHR7G?
For technical support, including S12MCHR7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S12MCHR7G requirements.
6.How does Aetrix verify that S12MCHR7G is sourced from the original manufacturer or authorized distributors?
All S12MCHR7G 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 S12MCHR7G meets industry standards.
7.What is the process for return or replacement of S12MCHR7G?
All S12MCHR7G units undergo pre-shipment inspection (PSI). If there is an issue with S12MCHR7G, 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 S12MCHR7G part is unused and in its original packaging.
Return procedure for S12MCHR7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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