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Taiwan Semiconductor Corporation SK59C M6G
- Part No.:
- SK59C M6G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SK59C M6G.pdf
- Description:
- DIODE SCHOTTKY 90V 5A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,066
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Product details
Overview
SK59C M6G from Taiwan Semiconductor is a 5A, 90V Schottky barrier surface-mount rectifier in DO-214AB (SMC) package, optimized for high-efficiency switching power supplies with low forward voltage (0.85 V at 5 A, 25°C), high surge capability (120 A IFSM), and junction temperature up to 150°C. It serves as the output rectifier in AC/DC adapters and DC/DC converters.
For engineers reviewing the SK59C M6G datasheet, SK59C M6G pinout, SK59C M6G application, or SK59C M6G equivalent, key selection criteria include its 90 V repetitive peak reverse voltage, 0.85 V forward drop at rated current, 0.3 mA reverse leakage at 25°C, thermal resistance (RθJL = 13°C/W), and RoHS/halogen-free compliance for industrial and lighting power designs.
Technical Context
The SK59C M6G implements a single-die Schottky structure with guard ring overvoltage protection and matte tin-plated leads compliant with J-STD-002 solderability. Its 13°C/W junction-to-lead thermal resistance enables reliable operation under sustained 5 A conduction on standard PCB copper pads.
Rated for 90 V VRRM and 120 A non-repetitive surge (8.3 ms half-sine), it supports high-duty-cycle SMPS topologies while maintaining low conduction loss - critical for efficiency-critical 24–48 V output rails in telecom and industrial converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 90 V - Maximum repetitive reverse voltage; defines safe operating limit in flyback/freewheeling applications |
| IF | 5 A - Continuous forward current rating; determines minimum heatsinking for steady-state operation |
| VF @ 5 A, 25°C | 0.85 V - Low conduction loss reduces power dissipation and improves system efficiency |
| IR @ 90 V, 25°C | 0.3 mA - Minimal reverse leakage preserves standby power budget in energy-sensitive designs |
| IFSM | 120 A - Peak surge withstand capability ensures robustness against line transients and startup stress |
| RθJL | 13 °C/W - Enables direct thermal path to PCB copper; simplifies thermal design without external heatsink |
| Junction Temp | −55°C to +150°C - Supports operation in harsh environments including industrial enclosures and outdoor lighting |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, cathode indicated by band. Molded plastic body meets UL 94V-0; weight ≈ 0.210 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current terminal | Connected to transformer secondary or switch node; carries full load current during conduction |
| Cathode | Output current terminal | Connected to output filter capacitor; polarity marked by visible band on package body |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Enhances ruggedness against transient overvoltage without derating VRRM |
| Moisture sensitivity level 1 | Eliminates bake requirement before reflow; compatible with standard SMT assembly lines |
| RoHS & halogen-free | Meets global environmental compliance mandates for industrial and consumer end equipment |
| High IFSM/IF ratio (24×) | Provides margin for inrush and fault currents without catastrophic failure |
Applications
| AC/DC Adapters | LED Drivers |
|---|---|
Use Scenario: Secondary-side rectification in 12–24 V, 30–60 W wall adapters for networking and IoT devices. IC Role / Device Role / Timing Role: Output freewheeling rectifier replacing fast recovery diodes to reduce conduction loss. Use Value: 0.85 V VF cuts rectifier power loss by ~35% vs. 1.1 V Si diode, improving adapter efficiency from 82% to ≥85%. |
Use Scenario: Constant-current LED string rectification in outdoor streetlight drivers with wide input range. IC Role / Device Role / Timing Role: High-reliability output rectifier handling 5 A continuous current in buck-derived topologies. Use Value: 150°C max junction temperature and 120 A surge rating ensure stable operation during lightning-induced surges and thermal cycling. |
| Industrial SMPS | DC/DC Converters |
Use Scenario: Main output rectifier in 48 V input, 12 V/5 A industrial power modules for PLCs and sensors. IC Role / Device Role / Timing Role: Primary conduction path during synchronous rectifier dead-time intervals. Use Value: RθJL = 13°C/W allows full 5 A load on 16 mm × 16 mm Cu pad without forced air, reducing BOM cost. |
Use Scenario: Isolated secondary rectifier in 1/4-brick DC/DC converters for telecom base stations. IC Role / Device Role / Timing Role: High-frequency switching rectifier operating at 100–500 kHz with minimal reverse recovery loss. Use Value: Schottky architecture eliminates reverse recovery charge (Qrr ≈ 0), eliminating switching loss spikes and EMI. |
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-50SQ030 | 30 V VRRM, 50 A IF, higher VF (0.47 V @ 25 A); TO-277 package | Not suitable for 90 V circuits; better for low-VIN, high-current 3.3–5 V rails | Select only if system VRRM requirement ≤30 V and board space allows larger footprint |
| ON Semiconductor SB590 | 90 V VRRM, 5 A IF, VF = 0.82 V @ 5 A, same DO-214AB package | Near-identical electrical specs; slightly lower VF but higher IR (0.5 mA @ 25°C) | Drop-in alternative where tighter reverse leakage spec is not required; verify layout compatibility |
Compared with SK59C M6G, VS-50SQ030 offers higher current but insufficient voltage rating for 90 V systems, while SB590 matches voltage and package but trades 0.03 V lower VF for 0.2 mA higher leakage - making SK59C M6G preferable for low-standby-power lighting and adapter designs.
Availability
SK59C M6G is available at Aetrix Electronics and suitable for AC/DC adapters, LED drivers, and industrial SMPS requiring stable component supply, long-term lifecycle support, and RoHS-compliant Schottky rectification.
Supply support for SK59C 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, MOSFETs, and TVS diodes, with global distribution and AEC-Q200 qualified products.
The SK52C–SK520C family targets cost-sensitive, high-volume power conversion applications - delivering optimized Schottky performance across 20–200 V ratings with standardized DO-214AB packaging and industrial-grade reliability.
FAQ
What is the maximum junction temperature rating for SK59C M6G?
The SK59C M6G has a maximum junction temperature (TJ) of +150°C, enabling operation in thermally demanding environments such as enclosed LED drivers or industrial power supplies without derating at ambient temperatures up to 85°C when mounted on a 16 mm × 16 mm copper pad. This rating is confirmed in the Absolute Maximum Ratings table of the official TSC S2311 datasheet.
Is SK59C M6G RoHS and halogen-free compliant?
Yes, SK59C M6G is fully RoHS compliant and halogen-free per TSC documentation (Version S2311). The device uses lead-free matte tin plating on terminals and UL 94V-0 compliant molding compound, satisfying IPC-J-STD-609 and IEC 61249-2-21 requirements for environmentally restricted substances.
What is the forward voltage of SK59C M6G at 5 A and 125°C?
The forward voltage (VF) of SK59C M6G is not specified at 125°C in the published datasheet - only values at 25°C (0.85 V) and typical curves showing VF increase with temperature are provided. Designers should use Fig.10 (Typical Forward Characteristics) to interpolate; at 125°C and 5 A, VF is approximately 0.72–0.75 V based on curve extrapolation.
Does SK59C M6G have a specified reverse recovery time (trr)?
No, SK59C M6G does not specify reverse recovery time (trr) because it is a Schottky barrier diode - which operates via majority-carrier conduction and exhibits negligible reverse recovery charge (Qrr ≈ 0). This eliminates switching losses and associated EMI seen in PN-junction rectifiers, a key advantage confirmed in TSC's Electrical Specifications section.
What is the moisture sensitivity level (MSL) of SK59C M6G?
The SK59C M6G has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it is not humidity-sensitive and can be stored indefinitely at room temperature without dry-packaging or baking prior to reflow soldering - simplifying manufacturing logistics and reducing process risk.
SK59C 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):
- 90 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 850 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 300 µA @ 90 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SK59C M6G FAQ
1.How can I place an order for SK59C M6G through Aetrix?
Please submit a Request for Quotation (RFQ) for SK59C 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 SK59C M6G reliable?
The price and inventory of SK59C M6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK59C M6G is usually 5 days.
3.What payment methods are accepted for SK59C M6G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK59C M6G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK59C M6G?
SK59C M6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK59C 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 SK59C M6G?
For technical support, including SK59C M6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK59C M6G requirements.
6.How does Aetrix verify that SK59C M6G is sourced from the original manufacturer or authorized distributors?
All SK59C 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 SK59C M6G meets industry standards.
7.What is the process for return or replacement of SK59C M6G?
All SK59C M6G units undergo pre-shipment inspection (PSI). If there is an issue with SK59C 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 SK59C M6G part is unused and in its original packaging.
Return procedure for SK59C M6G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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