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

Taiwan Semiconductor Corporation SK83CHR7G

Name: SK83CHR7G
Brand: Taiwan Semiconductor Corporation
SKU: SK83CHR7G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SK83CHR7G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: SK83CHR7G.pdf

Description:: DIODE SCHOTTKY 30V 8A DO214AB

Quantity:: RFQ Add To RFQ list

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Inventory:3,251

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Product details

Overview

SK83CHR7G from Taiwan Semiconductor is a 30V, 8A Schottky barrier surface-mount rectifier in DO-214AB (SMC) package, featuring 0.55V forward voltage at 8A/25°C, 150A surge capability, and guard-ring overvoltage protection-used in high-efficiency AC/DC adapters and DC-DC converters.

For engineers reviewing the SK83CHR7G datasheet, SK83CHR7G pinout, SK83CHR7G application, or SK83CHR7G equivalent, key selection criteria include V_RRM = 30 V, I_F = 8 A, T_J max = 150 °C, R_θJA = 20 °C/W, and moisture sensitivity level 1 compliance per J-STD-020.

Technical Context

This discrete Schottky diode uses a single-die construction with a guard ring to enhance ruggedness against transient overvoltage events. Its low VF and high IFSM support high-frequency switching topologies where conduction loss minimization is critical.

Designed for surface-mount assembly on PCBs with matte tin-plated leads compliant to J-STD-002, it operates across -55°C to +150°C junction temperature range and meets UL 94V-0 flammability and halogen-free requirements per IEC 61249-2-21.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	30 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in flyback or buck converter freewheeling paths.
I_F	8 A - Continuous forward current rating at case temperature ≤ 115°C; determines heatsink sizing in power supply output stages.
V_F @ 8A, 25°C	0.55 V - Low conduction loss enables >92% efficiency in 12V-output SMPS designs at full load.
I_FSM	150 A - Non-repetitive surge current handling for cold-start and line-transient conditions without failure.
T_J max	150 °C - Extended junction temperature rating allows operation in compact, sealed enclosures without derating at ambient up to 85°C.
R_θJA	20 °C/W - Thermal resistance from junction to ambient under standard JEDEC 2S2P board; informs thermal pad area design.
MSL	Level 1 - No floor life limitation or bake requirement before reflow; supports direct placement in high-volume SMT lines.

Pinout & Package

DO-214AB (SMC) package: molded epoxy case with cathode band marking; matte tin-plated leads; weight ≈ 0.210 g; UL 94V-0 rated compound.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential node (e.g., switch node in synchronous rectification or transformer secondary center-tap).
Cathode	Forward current exit / reverse blocking terminal	Marked by band; tied to output rail or ground return path; must withstand full V_RRM during off-state.

Key Features

Feature	Design Value
Guard ring structure	Improves dv/dt immunity and prevents premature edge breakdown under fast-rising transients (dV/dt = 10,000 V/µs).
Low forward voltage	0.55 V at 8A/25°C reduces conduction loss by ~35% vs. comparable 40V Schottkys, directly lowering thermal stress.
High surge robustness	150A IFSM rating supports 10× nominal current for 8.3ms half-sine surges-critical for universal-input adapter inrush handling.
Halogen-free & RoHS	Complies with IEC 61249-2-21 and EU RoHS Directive; eliminates brominated flame retardants in PCB assembly environments.

Applications

Laptop AC Adapter	USB-C PD Power Module
Use Scenario: Secondary-side rectification in 65W–100W flyback adapters with 20V output. IC Role / Device Role / Timing Role: Uncontrolled Schottky rectifier replacing slower PN diodes to minimize conduction loss and improve light-load efficiency. Use Value: Enables 0.55V VF to reduce output-stage power loss by 1.2W at 5A, allowing smaller heatsinks and higher power density.	Use Scenario: Output rectification in 45W USB-C PD buck-boost converters with 9–20V variable output. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectifier-assisted topology, providing redundancy and fault tolerance. Use Value: 150A IFSM withstands 200% overload surges during cable insertion events without degradation.
LED Driver Power Supply	Industrial DC-DC Converter
Use Scenario: Output rectification in constant-current LED drivers for street lighting (36–48V output, 1.5A–3A). IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 8A peak current in quasi-resonant topology. Use Value: 150°C T_J max permits operation in thermally constrained outdoor enclosures without forced air cooling.	Use Scenario: Input rectification in 24V-to-12V isolated DC-DC modules for PLC backplanes. IC Role / Device Role / Timing Role: Bridge leg diode in full-wave rectifier configuration feeding bulk capacitor input stage. Use Value: MSL Level 1 ensures zero moisture-related popcorning during lead-free reflow, improving manufacturing yield.

Laptop AC Adapter

USB-C PD Power Module

Use Scenario: Secondary-side rectification in 65W–100W flyback adapters with 20V output.

IC Role / Device Role / Timing Role: Uncontrolled Schottky rectifier replacing slower PN diodes to minimize conduction loss and improve light-load efficiency.

Use Value: Enables 0.55V VF to reduce output-stage power loss by 1.2W at 5A, allowing smaller heatsinks and higher power density.

Use Scenario: Output rectification in 45W USB-C PD buck-boost converters with 9–20V variable output.

IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectifier-assisted topology, providing redundancy and fault tolerance.

Use Value: 150A IFSM withstands 200% overload surges during cable insertion events without degradation.

LED Driver Power Supply

Industrial DC-DC Converter

Use Scenario: Output rectification in constant-current LED drivers for street lighting (36–48V output, 1.5A–3A).

IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 8A peak current in quasi-resonant topology.

Use Value: 150°C T_J max permits operation in thermally constrained outdoor enclosures without forced air cooling.

Use Scenario: Input rectification in 24V-to-12V isolated DC-DC modules for PLC backplanes.

IC Role / Device Role / Timing Role: Bridge leg diode in full-wave rectifier configuration feeding bulk capacitor input stage.

Use Value: MSL Level 1 ensures zero moisture-related popcorning during lead-free reflow, improving manufacturing yield.

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-8EWH03FN-M3/45	V_RRM = 30 V, I_F = 8 A, V_F = 0.52 V @ 8A, DO-214AB, but T_J max = 175 °C and R_θJA = 18 °C/W.	Higher thermal capability suits higher ambient environments; slightly lower VF improves efficiency marginally.	Preferred where extended temperature margin or tighter thermal budget is required; same footprint and solder profile.
ON Semiconductor SB830	V_RRM = 30 V, I_F = 8 A, V_F = 0.57 V @ 8A, DO-214AB, T_J max = 150 °C, but I_FSM = 120 A and no guard ring.	Lower surge rating and missing guard ring reduce robustness in high-dV/dt industrial environments.	Acceptable for cost-sensitive consumer adapters with benign line conditions; not recommended for industrial-grade designs.

Compared with VS-8EWH03FN-M3/45, SK83CHR7G offers identical voltage/current ratings but trades 3°C/W higher thermal resistance for broader availability and lower unit cost; versus SB830, SK83CHR7G delivers superior surge immunity and transient ruggedness essential for reliable field operation.

Availability

SK83CHR7G is available at Aetrix Electronics and suitable for laptop AC adapters, USB-C PD power modules, and industrial DC-DC converters requiring stable component supply, long-term lifecycle support, and J-STD-020 Level 1 moisture handling.

Supply support for SK83CHR7G 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 devices, and MOSFETs for industrial and consumer markets.

The SK8xC series was developed specifically for high-efficiency, surface-mount AC/DC and DC/DC power conversion, emphasizing low VF, high surge tolerance, and robust packaging for automated manufacturing.

FAQ

What is the maximum junction temperature rating for SK83CHR7G?

The SK83CHR7G has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet (Version L2102). This allows uninterrupted operation in enclosed power supplies where case temperatures reach 85°C, provided thermal design maintains junction temperature below this limit. The SK83CHR7G's 20°C/W R_θJA enables straightforward thermal pad implementation on standard FR-4 boards.

Does SK83CHR7G have a guard ring structure?

Yes, SK83CHR7G incorporates a guard ring for overvoltage protection, explicitly stated in the "Features" section of the Taiwan Semiconductor datasheet. This structure enhances edge termination robustness, enabling the device to sustain dV/dt up to 10,000 V/µs without premature breakdown-critical in high-frequency switching applications like QR flyback converters where rapid voltage transitions occur across the diode.

What is the forward voltage of SK83CHR7G at 8A and 25°C?

The forward voltage (V_F) of SK83CHR7G is 0.55 V at I_F = 8 A and T_J = 25°C, as specified in the "ELECTRICAL SPECIFICATIONS" table under "SK83C" row. This value is measured using a 0.3 ms pulse test and reflects low conduction loss ideal for high-efficiency power supplies. At elevated junction temperatures (e.g., 100°C), V_F decreases slightly, maintaining stable performance across operating range.

Is SK83CHR7G RoHS and halogen-free compliant?

Yes, SK83CHR7G is RoHS compliant and halogen-free per IEC 61249-2-21, as confirmed in the "FEATURES" section of the official datasheet. The molding compound contains no brominated or chlorinated flame retardants, and lead-free matte tin plating meets J-STD-002 solderability standards. These qualifications make SK83CHR7G suitable for environmentally regulated markets including EU, Japan, and China RoHS zones.

What is the moisture sensitivity level (MSL) of SK83CHR7G?

SK83CHR7G is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and requires no baking prior to reflow soldering. This is confirmed in the "FEATURES" list and simplifies SMT line integration-especially for high-throughput manufacturing of power adapters and industrial converters where moisture-related defects (e.g., popcorning) must be eliminated without process overhead.

SK83CHR7G 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):: 30 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 @ 30 V

Capacitance @ Vr, F:: -

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AB (SMC)

Operating Temperature - Junction:: -55°C ~ 125°C

SK83CHR7G FAQ

1.How can I place an order for SK83CHR7G through Aetrix?

Please submit a Request for Quotation (RFQ) for SK83CHR7G 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 SK83CHR7G reliable?

The price and inventory of SK83CHR7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK83CHR7G is usually 5 days.

3.What payment methods are accepted for SK83CHR7G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK83CHR7G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SK83CHR7G?

SK83CHR7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SK83CHR7G 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 SK83CHR7G?

For technical support, including SK83CHR7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK83CHR7G requirements.

6.How does Aetrix verify that SK83CHR7G is sourced from the original manufacturer or authorized distributors?

All SK83CHR7G 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 SK83CHR7G meets industry standards.

7.What is the process for return or replacement of SK83CHR7G?

All SK83CHR7G units undergo pre-shipment inspection (PSI). If there is an issue with SK83CHR7G, 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 SK83CHR7G part is unused and in its original packaging.

Return procedure for SK83CHR7G:

1.Submit a request within 90 days.

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

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