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

Taiwan Semiconductor Corporation S8KC

Name: S8KC
Brand: Taiwan Semiconductor Corporation
SKU: S8KC
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S8KC

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: S8KC.pdf

Description:: DIODE GEN PURP 800V 8A DO214AB

Quantity:: RFQ Add To RFQ list

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Inventory:2,079

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Product details

Overview

S8KC from Taiwan Semiconductor is a surface-mount silicon rectifier diode rated for 8 A average forward current and 800 V repetitive peak reverse voltage in a DO-214AB (SMC) package. It features low forward voltage drop (max 0.985 V at 8 A, 25°C), high surge capability (200 A @ 8.3 ms), and operates up to 150°C junction temperature. It is used in switching mode power supplies and AC/DC converters requiring robust, automated-placement-compatible rectification.

For engineers reviewing the S8KC datasheet, S8KC pinout, S8KC application, or S8KC equivalent, key selection criteria include its 800 V V_RRM, 200 A I_FSM surge rating, thermal resistance (R_θJL = 12.5 °C/W), moisture sensitivity level 1 compliance, and DO-214AB mechanical footprint compatibility with standard SMC land patterns.

Technical Context

The S8KC is a single-die, glass-passivated, standard recovery rectifier optimized for high-efficiency AC/DC front-end stages. Its electrical behavior is defined by a maximum forward voltage of 0.985 V at 8 A and 25°C, reverse leakage of ≤10 µA at rated V_R and 25°C, and junction capacitance of 48 pF at 1 MHz and 4 V reverse bias.

Thermally, it delivers R_θJL = 12.5 °C/W and R_θJA = 44.0 °C/W under standard conditions, enabling reliable operation in compact, convection-cooled power supplies. Polarity is marked by a cathode band on the molded body per JEDEC DO-214AB specification.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	800 V - Maximum non-repetitive reverse blocking voltage before breakdown; defines usable input voltage range in bridge or single-phase rectifier designs.
I_F	8 A - Continuous average forward current at case temperature ≤75°C; determines steady-state power handling without derating.
I_FSM (8.3 ms)	200 A - Peak non-repetitive surge current capability; supports inrush current tolerance during cold-start in SMPS and adapters.
V_F (8 A, 25°C)	≤0.985 V - Forward voltage drop directly impacts conduction loss and thermal design; enables <1.0 W dissipation at full load.
T_J max	+150°C - Maximum allowable junction temperature; sets thermal margin for PCB layout and heatsinking requirements.
R_θJL	12.5 °C/W - Junction-to-lead thermal resistance; critical for estimating die temperature rise when lead is used as primary heat path.
C_J	48 pF - Junction capacitance at 4 V reverse bias; influences high-frequency switching noise and EMI filter design in PFC stages.

Pinout & Package

Package: DO-214AB (SMC), molded plastic case meeting UL 94V-0; matte tin-plated leads, polarity indicated by cathode band; weight ≈ 0.270 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry terminal	Connected to AC input or transformer secondary; must withstand full surge current and thermal cycling.
Cathode	Forward current exit terminal	Connected to bulk capacitor or DC bus; marked by visible band; carries full output current and requires low-impedance trace routing.

Key Features

Feature	Design Value
Glass-passivated chip junction	Enhances long-term reliability and humidity resistance in industrial environments without conformal coating.
Moisture sensitivity level 1 (J-STD-020)	Eliminates bake requirement prior to reflow; supports standard SMT assembly without special handling.
High I_FSM/I_F ratio (25:1)	Provides robust overcurrent margin for transient surges in universal-input AC/DC converters.
Halogen-free & RoHS compliant	Meets IEC 61249-2-21 and global environmental regulations for commercial and industrial end equipment.
DO-214AB mechanical standardization	Ensures compatibility with automated pick-and-place machines and industry-standard SMC footprints.

Applications

Switching Mode Power Supply (SMPS)	AC/DC Adapters
Use Scenario: Primary-side rectification in offline flyback or forward converters accepting 85–265 VAC input. IC Role / Device Role / Timing Role: High-voltage, high-current unidirectional current switch converting AC line to pulsating DC. Use Value: 800 V V_RRM safely covers 265 VAC × √2 × safety margin; 200 A surge rating handles startup inrush without degradation.	Use Scenario: Output rectification in isolated 12–24 V DC adapters for consumer electronics. IC Role / Device Role / Timing Role: Secondary-side freewheeling or synchronous rectification element (when used with controller). Use Value: Low 0.985 V V_F reduces conduction loss and improves efficiency above 85% at full load; DO-214AB footprint simplifies board layout.
LED Lighting Drivers	DC-DC Converters
Use Scenario: Bridge rectification in constant-current LED drivers for streetlights and commercial fixtures. IC Role / Device Role / Timing Role: Input-stage rectifier converting rectified AC to high-voltage DC bus for buck or boost regulation. Use Value: 150°C T_J max allows operation in thermally constrained enclosed housings; halogen-free construction meets lighting safety standards.	Use Scenario: Input rectification in isolated DC-DC modules converting 48 V or 270 V DC to lower voltages. IC Role / Device Role / Timing Role: High-voltage clamp and current path in DC-fed forward or push-pull topologies. Use Value: 48 pF C_J minimizes capacitive coupling noise in high-frequency isolated converters; R_θJL = 12.5 °C/W supports direct lead soldering to thermal pads.

Switching Mode Power Supply (SMPS)

AC/DC Adapters

Use Scenario: Primary-side rectification in offline flyback or forward converters accepting 85–265 VAC input.

IC Role / Device Role / Timing Role: High-voltage, high-current unidirectional current switch converting AC line to pulsating DC.

Use Value: 800 V V_RRM safely covers 265 VAC × √2 × safety margin; 200 A surge rating handles startup inrush without degradation.

Use Scenario: Output rectification in isolated 12–24 V DC adapters for consumer electronics.

IC Role / Device Role / Timing Role: Secondary-side freewheeling or synchronous rectification element (when used with controller).

Use Value: Low 0.985 V V_F reduces conduction loss and improves efficiency above 85% at full load; DO-214AB footprint simplifies board layout.

LED Lighting Drivers

DC-DC Converters

Use Scenario: Bridge rectification in constant-current LED drivers for streetlights and commercial fixtures.

IC Role / Device Role / Timing Role: Input-stage rectifier converting rectified AC to high-voltage DC bus for buck or boost regulation.

Use Value: 150°C T_J max allows operation in thermally constrained enclosed housings; halogen-free construction meets lighting safety standards.

Use Scenario: Input rectification in isolated DC-DC modules converting 48 V or 270 V DC to lower voltages.

IC Role / Device Role / Timing Role: High-voltage clamp and current path in DC-fed forward or push-pull topologies.

Use Value: 48 pF C_J minimizes capacitive coupling noise in high-frequency isolated converters; R_θJL = 12.5 °C/W supports direct lead soldering to thermal pads.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH8R06D (STMicroelectronics)	600 V V_RRM, 8 A I_F, faster recovery (t_rr = 65 ns), higher V_F (1.15 V)	Better suited for high-frequency PFC where fast recovery reduces switching loss	Select S8KC for cost-sensitive 800 V systems; STTH8R06D only if 600 V rating suffices and faster recovery is required.
VS-8EWH06FN-M3 (Vishay)	600 V V_RRM, 8 A I_F, TO-277 package (smaller footprint), same V_F spec	Enables denser layouts but lacks DO-214AB compatibility and 800 V headroom	Choose S8KC when 800 V blocking and DO-214AB placement are mandatory; VS-8EWH06FN-M3 only for space-constrained 600 V designs.

Compared with STTH8R06D and VS-8EWH06FN-M3, the S8KC uniquely provides 800 V V_RRM in the widely supported DO-214AB package with industry-leading surge margin (200 A), making it optimal for universal-input offline power supplies where voltage headroom and ruggedness outweigh ultra-fast recovery needs.

Availability

S8KC is available at Aetrix Electronics and suitable for switching mode power supplies, AC/DC adapters, and LED lighting drivers requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for S8KC 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, TVS diodes, MOSFETs, and IGBTs, with global distribution and AEC-Q200 qualified offerings.

The S8KC belongs to TSC's S8GC–S8MC family of high-voltage surface-mount rectifiers designed specifically for cost-effective, high-reliability AC/DC conversion in industrial, consumer, and lighting applications.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for the S8KC?

The S8KC has a maximum repetitive peak reverse voltage (V_RRM) of 800 V, as specified in the Absolute Maximum Ratings table. This value is confirmed across all official Taiwan Semiconductor documentation for the S8KC variant and defines its safe operating reverse-bias limit in rectifier circuits. The S8KC is part of a family spanning 400 V (S8GC) to 1000 V (S8MC), with each variant marked distinctly on the device body.

Does the S8KC have a specified forward voltage (V_F) at full rated current?

Yes, the S8KC has a maximum forward voltage (V_F) of 0.985 V at 8 A forward current and 25°C junction temperature, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and represents the upper bound for conduction loss calculation in thermal and efficiency modeling for the S8KC.

Is the S8KC compatible with standard reflow soldering processes?

Yes, the S8KC is fully compatible with standard reflow soldering processes. It is rated at Moisture Sensitivity Level 1 per J-STD-020, meaning it can be stored indefinitely at ambient conditions and placed directly into reflow without baking. Its matte tin-plated leads meet J-STD-002 solderability requirements, ensuring reliable wetting and joint formation during SMT assembly of the S8KC.

What is the thermal resistance from junction to lead (R_θJL) for the S8KC?

The junction-to-lead thermal resistance (R_θJL) for the S8KC is 12.5 °C/W, as published in the Thermal Performance section of the datasheet. This parameter is critical for estimating die temperature rise when heat is conducted through the leads-especially important in designs where the S8KC is mounted without external heatsinking or with minimal copper pour.

How is polarity indicated on the S8KC package?

Polarity on the S8KC is indicated by a visible cathode band on the molded plastic body, consistent with JEDEC DO-214AB (SMC) standard marking conventions. The band identifies the cathode terminal, which must be connected toward the positive side of the DC output or bulk capacitor in rectifier configurations. This marking is clearly shown in the Marking Diagram on page 4 of the Taiwan Semiconductor S8GC–S8MC datasheet.

S8KC Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AB, SMC

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 800 V

Current - Average Rectified (Io):: 8A

Voltage - Forward (Vf) (Max) @ If:: -

Speed:: Standard Recovery >500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 10 µA @ 800 V

Capacitance @ Vr, F:: 48pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

Operating Temperature - Junction:: -55°C ~ 150°C

S8KC FAQ

1.How can I place an order for S8KC through Aetrix?

Please submit a Request for Quotation (RFQ) for S8KC 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 S8KC reliable?

The price and inventory of S8KC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S8KC is usually 5 days.

3.What payment methods are accepted for S8KC?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S8KC transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S8KC?

S8KC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S8KC 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 S8KC?

For technical support, including S8KC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S8KC requirements.

6.How does Aetrix verify that S8KC is sourced from the original manufacturer or authorized distributors?

All S8KC 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 S8KC meets industry standards.

7.What is the process for return or replacement of S8KC?

All S8KC units undergo pre-shipment inspection (PSI). If there is an issue with S8KC, 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 S8KC part is unused and in its original packaging.

Return procedure for S8KC:

1.Submit a request within 90 days.

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

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