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Taiwan Semiconductor Corporation SK84C M6G
- Part No.:
- SK84C M6G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SK84C M6G.pdf
- Description:
- DIODE SCHOTTKY 40V 8A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,792
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Product details
Overview
SK84C M6G from Taiwan Semiconductor is an 8A, 40V Schottky barrier surface-mount rectifier in DO-214AB (SMC) package, featuring 0.55V forward voltage at 8A/25°C, 150A surge capability, and 125°C maximum junction temperature. It serves as a high-efficiency output rectifier in DC-DC converters and AC-DC adapters.
For engineers reviewing the SK84C M6G datasheet, SK84C M6G pinout, SK84C M6G application, or SK84C M6G equivalent, key selection criteria include repetitive peak reverse voltage (40V), forward voltage drop, thermal resistance (20°C/W), surge current rating, and RoHS/halogen-free compliance for industrial power supply designs.
Technical Context
This discrete Schottky diode uses a single-die construction with guard ring structure to enhance overvoltage ruggedness and suppress leakage under high-temperature bias. Its low VF and high IFSM support high-frequency switching topologies with minimal conduction loss.
The device operates across –55°C to +125°C junction range, with moisture sensitivity level 1 (J-STD-020) and matte tin-plated leads compliant with J-STD-002 solderability. Thermal performance is characterized by RθJA = 20°C/W in standard JEDEC PCB layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in flyback or buck output stage |
| IF | 8 A - Continuous forward current rating; determines heatsink sizing and PCB copper area requirements |
| IFSM | 150 A - Non-repetitive surge current (8.3 ms half-sine); supports inrush and transient overload tolerance |
| VF | 0.55 V @ 8 A, 25°C - Low conduction loss enables >92% efficiency in 12V-output SMPS designs |
| RθJA | 20 °C/W - Junction-to-ambient thermal resistance; used to calculate max ambient temp for 125°C TJ |
| IR | 0.5 mA @ 40 V, 25°C - Reverse leakage sets minimum no-load power loss in standby mode |
| TJ max | 125 °C - Maximum junction temperature; limits derating curve above 75°C ambient |
Pinout & Package
Package: DO-214AB (SMC) - Surface-mount plastic case with cathode band marking; 0.210 g weight; UL 94V-0 rated molding compound; matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., transformer secondary center-tap or switch node) |
| Cathode | Forward current exit point | Connected to output rail; polarity marked by visible band on body |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Improves dv/dt immunity and prevents premature avalanche breakdown during voltage transients |
| Low forward voltage (0.55 V) | Reduces conduction loss by ~35% vs. comparable 45V Si diodes, lowering thermal stress in compact adapters |
| Moisture sensitivity level 1 | Enables direct placement without baking; eliminates pre-reflow moisture mitigation steps |
| Halogen-free (IEC 61249-2-21) | Meets environmental compliance for export to EU, Japan, and China RoHS-regulated markets |
| 150 A surge rating | Withstands 6× rated current for 8.3 ms, supporting robust operation during cold-start or short-circuit events |
Applications
| Server Power Supply Rectification | Laptop Adapter Output Stage |
|---|---|
Use Scenario: High-density 48V–12V intermediate bus converter in 1U server PSU. IC Role / Device Role / Timing Role: Primary output rectifier replacing synchronous MOSFETs where gate drive complexity must be minimized. Use Value: Delivers stable 12V/8A output with <0.6V drop, reducing thermal footprint versus Si alternatives while maintaining 93% efficiency at full load. | Use Scenario: Secondary-side rectification in 65W GaN-based laptop adapter. IC Role / Device Role / Timing Role: Freewheeling diode in active-clamp flyback topology operating at 150 kHz. Use Value: Enables zero-voltage switching assist with fast recovery and low Qrr, minimizing EMI and improving light-load regulation. |
| LED Driver Constant-Current Loop | Industrial DC-DC Module Input Protection |
Use Scenario: Output rectification in isolated 24V/3A constant-current LED driver for street lighting. IC Role / Device Role / Timing Role: Main power path diode in secondary synchronous rectification circuit. Use Value: Maintains <1.2W conduction loss at 3A/24V, enabling passive cooling and extending electrolytic capacitor life via reduced thermal stress. | Use Scenario: Reverse-polarity and backfeed protection in 24V input industrial DC-DC module. IC Role / Device Role / Timing Role: Series-blocking diode on main input rail before bulk capacitor. Use Value: Withstands 150A surge from hot-plug events and provides 40V reverse isolation without latch-up or thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-8EWH04FN-M3 | Same 40V VRRM, 8A IF, but TO-277 package (smaller footprint, higher RθJA = 25°C/W) | Preferred for ultra-thin adapters where height <1.8 mm is critical | Select when board space is constrained and thermal margin allows higher RθJA |
| ON Semiconductor SB840-E3/54 | 40V VRRM, 8A IF, DO-214AB package, but VF = 0.57 V (25°C) and IR = 1.0 mA @ 40 V | Suitable for cost-sensitive consumer adapters with relaxed leakage specs | Choose when BOM cost priority outweighs 0.02 V VF advantage and 2× IR tolerance |
Compared with VS-8EWH04FN-M3 and SB840-E3/54, the SK84C M6G offers the lowest forward voltage in DO-214AB form factor and tighter reverse leakage control at 100°C, making it optimal for thermally constrained industrial and telecom power supplies requiring long-term reliability.
Availability
SK84C M6G is available at Aetrix Electronics and suitable for switching mode power supplies, LED drivers, and industrial DC-DC converters requiring stable component supply, consistent parametric performance, and full RoHS/halogen-free compliance.
Supply support for SK84C 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 global power electronics and automotive markets since 1979.
The SK82C–SK810C series was designed specifically for high-efficiency, high-reliability AC-DC and DC-DC power conversion in industrial, computing, and lighting applications-emphasizing low VF, rugged surge handling, and extended temperature operation.
FAQ
What is the maximum junction temperature rating for SK84C M6G?
The SK84C M6G has a maximum junction temperature (TJ) of +125°C, validated per absolute maximum ratings table. This rating applies under continuous DC forward current conditions and requires thermal design that maintains junction temperature below this limit using the specified RθJA = 20°C/W. The SK84C M6G is not rated for 150°C operation-only SK85C through SK810C variants support that higher rating.
Does SK84C M6G have a halogen-free construction?
Yes, the SK84C M6G is halogen-free in accordance with IEC 61249-2-21, confirmed in the official Taiwan Semiconductor product documentation. This includes both molding compound and internal metallization. The "M6G" suffix explicitly denotes halogen-free and RoHS-compliant manufacturing, distinguishing it from legacy non-halogen-free variants.
What does the "M6G" suffix mean in SK84C M6G?
The "M6G" suffix in SK84C M6G indicates Taiwan Semiconductor's standardized packaging and compliance code: "M" = tape-and-reel packaging (3,000 pcs/reel), "6" = green compound (halogen-free), and "G" = RoHS-compliant finish. It is not a performance variant-it fully matches the electrical and thermal specifications of SK84C as defined in the SK82C–SK810C family datasheet.
Is SK84C M6G compatible with lead-free reflow soldering processes?
Yes, SK84C M6G is qualified for lead-free reflow soldering per J-STD-002. Its matte tin-plated leads meet wetting balance requirements, and its moisture sensitivity level (MSL) is Level 1-meaning it can be stored indefinitely at ≤30°C/60% RH and placed directly into reflow without baking, even for peak temperatures up to 260°C.
What is the reverse leakage current of SK84C M6G at 100°C?
The reverse leakage current (IR) of SK84C M6G is 15 mA maximum at rated VRRM = 40 V and TJ = 100°C, as specified in the Electrical Specifications table. This value is critical for standby power budgeting in energy-efficient adapters and must be accounted for in no-load loss calculations alongside controller quiescent current.
SK84C 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:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 40 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 125°C
SK84C M6G FAQ
1.How can I place an order for SK84C M6G through Aetrix?
Please submit a Request for Quotation (RFQ) for SK84C 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 SK84C M6G reliable?
The price and inventory of SK84C M6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK84C M6G is usually 5 days.
3.What payment methods are accepted for SK84C M6G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK84C M6G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK84C M6G?
SK84C M6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK84C 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 SK84C M6G?
For technical support, including SK84C M6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK84C M6G requirements.
6.How does Aetrix verify that SK84C M6G is sourced from the original manufacturer or authorized distributors?
All SK84C 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 SK84C M6G meets industry standards.
7.What is the process for return or replacement of SK84C M6G?
All SK84C M6G units undergo pre-shipment inspection (PSI). If there is an issue with SK84C 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 SK84C M6G part is unused and in its original packaging.
Return procedure for SK84C M6G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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