S8KC-HF Equivalent & Substitute Parts

Part Overview

The S8KC-HF is a general-purpose rectifier diode manufactured by Comchip Technology, rated for 800 V DC reverse voltage and 8 A average rectified current in a surface mount DO-214AB (SMC) package. This component is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across manufacturers. The S8KC-HF has established parametric equivalents from Vishay General Semiconductor, Taiwan Semiconductor Corporation, and Panjit International Inc., all meeting the same voltage, current, and package specifications required for direct circuit substitution.

Substiute Parts

S8KC-HF

Comchip TechnologyIn Stock: 872S8KC-HF Datasheet

Current PartRFQ

S8CK-M3/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 7861S8CK-M3/I Datasheet

Parametric EquivalentRFQ

S8KC V7G

Taiwan Semiconductor CorporationIn Stock: 1171S8KC V7G Datasheet

Parametric EquivalentRFQ

S8K_R1_00001

Panjit International Inc.In Stock: 1415S8K_R1_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the S8KC-HF rectifier diode is determined by strict equivalence in the following critical parameters:

• Voltage Rating: All substitute parts maintain 800 V DC reverse voltage (Vr) maximum
• Current Rating: All substitute parts maintain 8 A average rectified current (Io)
• Forward Voltage: All substitute parts maintain 985 mV maximum forward voltage at 8 A
• Reverse Leakage: All substitute parts maintain 10 µA maximum reverse leakage current at 800 V
• Recovery Speed: All substitute parts maintain standard recovery characteristics >500 ns at >200 mA
• Package: All substitute parts use DO-214AB (SMC) surface mount package
• Operating Temperature Range: All substitute parts maintain -55°C to 150°C junction temperature range
• Compliance: All substitute parts are RoHS3 compliant with MSL 1 rating

Parametric equivalents identified are S8CK-M3/I (Vishay), S8KC V7G (Taiwan Semiconductor Corporation), and S8K_R1_00001 (Panjit International Inc.).

Parameter Comparison

Engineering Selection Recommendations

S8CK-M3/I (Vishay General Semiconductor - Diodes Division) is the primary parametric equivalent. This part maintains all critical electrical specifications and is currently Active in product status. Vishay is an established manufacturer with REACH compliance documentation. This substitute is suitable for direct replacement in applications where the S8KC-HF is specified.

S8K_R1_00001 (Panjit International Inc.) is an active parametric equivalent meeting all electrical and mechanical requirements. This part is currently in active production status with REACH compliance. This substitute is suitable for direct replacement in applications where the S8KC-HF is specified.

S8KC V7G (Taiwan Semiconductor Corporation) is a parametric equivalent; however, this part is listed as Discontinued at DiGi Electronics. While electrical specifications remain equivalent, the discontinued status may affect long-term availability and supply chain continuity. This substitute should be evaluated based on current inventory requirements and supply chain strategy.

All three substitute parts are RoHS3 compliant with MSL 1 rating, matching the compliance profile of the S8KC-HF. Selection between active alternatives should be based on supplier availability, lead time, and inventory requirements.

Frequently Asked Questions (FAQ)

Q: Can S8CK-M3/I be used as a direct replacement for S8KC-HF?

A: Yes. The S8CK-M3/I maintains identical electrical specifications: 800 V reverse voltage, 8 A average rectified current, 985 mV forward voltage at 8 A, and 10 µA reverse leakage current. Both use DO-214AB (SMC) surface mount packaging. The part is currently Active in product status.

Q: What is the difference between S8KC-HF and S8K_R1_00001?

A: Both parts are parametric equivalents with identical voltage, current, and forward voltage specifications. The primary difference is manufacturer: S8KC-HF is from Comchip Technology, while S8K_R1_00001 is from Panjit International Inc. Both are Active in product status and RoHS3 compliant.

Q: Why is S8KC V7G listed as discontinued?

A: S8KC V7G is marked as Discontinued at DiGi Electronics. While the part maintains all required electrical specifications for substitution, discontinued status indicates reduced availability through standard distribution channels. Active alternatives (S8CK-M3/I and S8K_R1_00001) are recommended for new designs or long-term supply requirements.

Q: Are there packaging differences between these substitute parts?

A: S8KC-HF and S8CK-M3/I are supplied in Tape & Reel (TR) packaging. S8KC V7G is supplied in Cut Tape (CT) & Digi-Reel® packaging. S8K_R1_00001 is supplied in Tape & Reel (TR) packaging. All use the same DO-214AB (SMC) component package for surface mount assembly.

Q: What is the significance of the capacitance variation shown in the parameter comparison?

A: Capacitance values range from 40 pF to 79 pF at 4 V and 1 MHz across the substitute parts. This variation is within normal manufacturing tolerance for rectifier diodes and does not affect the substitution criteria, which are based on voltage, current, forward voltage, and reverse leakage specifications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts (S8CK-M3/I, S8KC V7G, and S8K_R1_00001) are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the compliance profile of the S8KC-HF.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, for designs currently using S8KC-HF. All substitute parts maintain identical electrical specifications and use the same DO-214AB (SMC) surface mount package. No circuit modifications are required for substitution.