SMCJ6.0C Transient Voltage Suppressor - Equivalent & Substitute Parts

Part Overview

The SMCJ6.0C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Taiwan Semiconductor Corporation, designed for general-purpose overvoltage protection applications. This surface-mount component operates in the 6V reverse standoff voltage range with a peak pulse power rating of 1500W and is housed in a DO-214AB (SMC) package. The product maintains active status with 728 units currently in stock.

Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and maintain component availability across manufacturing cycles while preserving circuit protection performance.

Substiute Parts

SMCJ6.0C

Taiwan Semiconductor CorporationIn Stock: 751SMCJ6.0C Datasheet

Current PartRFQ

SMCJ6.0CA

MDDIn Stock: 8737SMCJ6.0CA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMCJ6.0C is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Voltage - Reverse Standoff (Typ): 6V
• Voltage - Breakdown (Min): 6.67V
• Power - Peak Pulse: 1500W
• Package / Case: DO-214AB (SMC)
• Mounting Type: Surface Mount
• Type: Zener (Bidirectional)

Allowable Variation Parameters:

• Voltage - Clamping (Max) @ Ipp: Must not exceed the original specification to maintain circuit protection integrity
• Current - Peak Pulse (10/1000µs): May vary within the 1500W power envelope
• Operating Temperature Range: May be narrower or equal to the original range
• Manufacturer: Different manufacturers permitted if all electrical and mechanical parameters align

The SMCJ6.0CA qualifies as a direct substitute based on matching all mandatory parameters while maintaining equivalent protection characteristics within the specified power and voltage envelope.

Parameter Comparison

Engineering Selection Recommendations

Both the SMCJ6.0C and SMCJ6.0CA are active products with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution.

The SMCJ6.0CA presents a functionally equivalent alternative with the following characteristics:

The substitute part maintains identical reverse standoff voltage (6V), breakdown voltage (6.67V), and peak pulse power rating (1500W), ensuring equivalent circuit protection performance. The clamping voltage of the SMCJ6.0CA (10.3V) is lower than the main part (11.4V), providing enhanced transient suppression with faster response to overvoltage events. Peak pulse current capacity is marginally higher (145.7A versus 138A), remaining within the 1500W power envelope.

The operating temperature range of the SMCJ6.0CA (-50 to 150°C) is narrower at the lower bound compared to the SMCJ6.0C (-55 to 150°C). Applications requiring operation below -50°C must retain the original SMCJ6.0C specification.

Both components are housed in identical DO-214AB (SMC) surface-mount packages, permitting direct PCB footprint compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the SMCJ6.0CA be used as a direct replacement for the SMCJ6.0C in all applications?

A: The SMCJ6.0CA is electrically and mechanically compatible for applications operating within the temperature range of -50°C to 150°C. Applications requiring operation below -50°C must use the original SMCJ6.0C due to its extended lower temperature limit of -55°C.

Q: What is the significance of the lower clamping voltage in the SMCJ6.0CA?

A: The SMCJ6.0CA clamping voltage of 10.3V (versus 11.4V in the SMCJ6.0C) indicates faster transient suppression and lower peak voltage stress on protected circuitry. This represents an improvement in protection performance while maintaining the same 1500W power rating and 6V reverse standoff specification.

Q: Are there any PCB layout considerations when substituting the SMCJ6.0CA for the SMCJ6.0C?

A: No layout modifications are required. Both components use the identical DO-214AB (SMC) surface-mount package, ensuring direct footprint compatibility without PCB redesign.

Q: Do both parts meet current regulatory compliance standards?

A: Yes. Both the SMCJ6.0C and SMCJ6.0CA are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: What is the basis for determining substitution eligibility?

A: Substitution is based on matching critical electrical parameters (reverse standoff voltage, breakdown voltage, peak pulse power, and clamping voltage envelope) and mechanical parameters (package type and mounting method). Manufacturer differences are permitted provided all specified parameters align within acceptable tolerances.