SMCJ7.0C Transient Voltage Suppressor - Equivalent & Substitute Parts

Part Overview

The SMCJ7.0C 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 7V reverse standoff voltage range with a peak pulse power rating of 1500W and is housed in a DO-214AB (SMC) package. The part is currently in active production status with 986 units in stock inventory.

Identifying equivalent and substitute parts is necessary when primary inventory is depleted, when supply chain constraints occur, or when design flexibility is required across manufacturing locations while maintaining identical electrical and mechanical performance characteristics.

Substiute Parts

SMCJ7.0C

Taiwan Semiconductor CorporationIn Stock: 1025SMCJ7.0C Datasheet

Current PartRFQ

SMCJ7.0CA

Taiwan Semiconductor CorporationIn Stock: 84416SMCJ7.0CA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMCJ7.0C is determined by strict equivalence across the following critical parameters:

Mandatory Matching Criteria:

• Reverse standoff voltage: 7V (Typ)
• Breakdown voltage minimum: 7.78V
• Package type: DO-214AB (SMC)
• Mounting configuration: Surface Mount
• Bidirectional channel count: 1
• Operating temperature range: -55°C to 150°C (TJ)
• Peak pulse power rating: 1500W

Allowable Variation Range:

• Clamping voltage (Max) @ Ipp: ±1.3V tolerance
• Peak pulse current (10/1000µs): ±13A tolerance

The SMCJ7.0CA meets all mandatory matching criteria and operates within the allowable variation range for clamping voltage and peak pulse current, qualifying it as a direct substitute for the SMCJ7.0C in applications requiring identical reverse standoff and breakdown voltage characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the SMCJ7.0C and SMCJ7.0CA are active production components manufactured by Taiwan Semiconductor Corporation and carry identical RoHS3 and REACH compliance certifications. Both parts are classified as ECCN EAR99 and share the same HTSUS tariff code (8541.10.0080).

The SMCJ7.0CA exhibits superior peak pulse current handling (131A versus 118A) and a lower clamping voltage (12V versus 13.3V). These characteristics position the SMCJ7.0CA as functionally equivalent and suitable for direct substitution in circuit designs where the SMCJ7.0C is specified, provided the circuit design accommodates the lower clamping voltage and higher current capacity.

Selection between these parts should be based on circuit-level requirements and inventory availability. The SMCJ7.0CA maintains significantly higher inventory levels (84,400 units) compared to the SMCJ7.0C (986 units), making it the preferred choice for supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the SMCJ7.0CA replace the SMCJ7.0C in existing designs without circuit modification?

A: Yes. Both parts share identical reverse standoff voltage (7V), breakdown voltage (7.78V minimum), operating temperature range (-55°C to 150°C), package type (DO-214AB/SMC), and peak pulse power rating (1500W). The SMCJ7.0CA operates within the allowable parameter variation range established for this product category.

Q: What is the significance of the clamping voltage difference between these parts?

A: The SMCJ7.0C clamps at 13.3V maximum, while the SMCJ7.0CA clamps at 12V maximum. The lower clamping voltage of the SMCJ7.0CA provides tighter voltage regulation during transient events. This difference is within the allowable tolerance range for TVS diodes in this voltage class and does not affect substitution eligibility.

Q: Why does the SMCJ7.0CA have higher peak pulse current than the SMCJ7.0C?

A: The SMCJ7.0CA is rated for 131A peak pulse current compared to 118A for the SMCJ7.0C. This represents enhanced current handling capability within the same 1500W power envelope and identical package configuration. This characteristic makes the SMCJ7.0CA suitable for applications requiring higher transient current suppression.

Q: Are there any package or mounting differences between these parts?

A: No. Both the SMCJ7.0C and SMCJ7.0CA use identical DO-214AB (SMC) surface-mount packaging. PCB footprints, solder reflow profiles, and automated assembly processes are identical for both parts.

Q: What compliance certifications apply to both parts?

A: Both parts are RoHS3 compliant and REACH unaffected. Both carry ECCN classification EAR99 and HTSUS tariff code 8541.10.0080. Regulatory and environmental compliance requirements are satisfied identically by either part.

Q: Is the SMCJ7.0CA available in Tape & Reel packaging?

A: The SMCJ7.0C is specified as Tape & Reel (TR) packaging. The SMCJ7.0CA packaging specification is not provided in the available technical data. Confirm packaging format with the supplier before procurement to ensure compatibility with automated assembly equipment.