SMCJ58C Transient Voltage Suppressor - Equivalent & Substitute Parts

Part Overview

The SMCJ58C is a 1500W bidirectional transient voltage suppressor (TVS) diode manufactured by Taiwan Semiconductor Corporation. This surface mount component operates with a 58V reverse standoff voltage and 103V maximum clamping voltage, designed for general-purpose transient protection applications. The part is currently in active production status with 665 units available in inventory. Alternative equivalent parts may be required due to supply chain considerations, packaging preferences, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

SMCJ58C

Taiwan Semiconductor CorporationIn Stock: 754SMCJ58C Datasheet

Current PartRFQ

SMCJ58CA

EVVO SemiIn Stock: 35247SMCJ58CA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMCJ58C is determined by strict alignment of the following critical electrical parameters:

Mandatory Matching Parameters:

• Reverse standoff voltage: 58V (typical)
• Breakdown voltage minimum: 64.4V
• Bidirectional channel configuration: 1 channel
• Peak pulse power rating: 1500W
• Operating temperature range: -55°C to 150°C
• Package/case type: DO-214AB (SMC)
• Mounting configuration: Surface mount

Allowable Variation Parameters:

• Clamping voltage (Max) @ Ipp: Substitute must not exceed 103V
• Peak pulse current (10/1000µs): Substitute must meet or exceed 15A

The SMCJ58CA from EVVO Semi qualifies as an equivalent substitute based on matching all mandatory parameters. The substitute exhibits a lower clamping voltage (93.6V versus 103V) and higher peak pulse current capability (16.1A versus 15A), both of which represent acceptable operational characteristics within the application envelope of the original part.

Parameter Comparison

Engineering Selection Recommendations

Both the SMCJ58C and SMCJ58CA are active production components with ROHS3 compliance and EAR99 export classification. Selection between these parts is based on the following factors:

SMCJ58C Selection Criteria:

• Primary choice when maximum clamping voltage specification of 103V is required
• Preferred when Taiwan Semiconductor Corporation supply chain is established
• Suitable for applications where the higher clamping voltage provides additional design margin

SMCJ58CA Selection Criteria:

• Acceptable alternative when EVVO Semi supply chain offers improved availability or lead time
• Preferred when lower clamping voltage (93.6V) aligns with circuit protection requirements
• Suitable when higher peak pulse current capability (16.1A) provides operational advantage
• Available in higher inventory quantities (35,200 units versus 665 units)

Both parts maintain identical electrical performance in the critical parameters of standoff voltage, breakdown voltage, power rating, and temperature range. The packaging and mounting characteristics are identical, ensuring direct PCB-level compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Can SMCJ58CA be used as a direct replacement for SMCJ58C in existing designs?

A: Yes. Both parts share identical reverse standoff voltage (58V), breakdown voltage (64.4V), peak pulse power (1500W), operating temperature range (-55°C to 150°C), and package configuration (DO-214AB SMC surface mount). The SMCJ58CA exhibits lower clamping voltage (93.6V) and higher peak pulse current (16.1A), both of which are compatible with the original application envelope.

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

A: The SMCJ58C specifies a maximum clamping voltage of 103V, while the SMCJ58CA specifies 93.6V. Lower clamping voltage provides tighter transient suppression. The SMCJ58CA's lower value represents improved performance for circuit protection. Both values remain within acceptable operating parameters for general-purpose TVS applications.

Q: Are there packaging differences between SMCJ58C and SMCJ58CA?

A: Both parts use the DO-214AB (SMC) package for surface mount applications. The SMCJ58C is supplied in Tape & Reel (TR) format, while the SMCJ58CA is available in Cut Tape (CT) and Digi-Reel® formats. The physical component dimensions and PCB footprint are identical.

Q: What compliance certifications apply to both parts?

A: Both SMCJ58C and SMCJ58CA are ROHS3 compliant and REACH unaffected. Both carry EAR99 export classification and fall under HTSUS code 8541.10.0080.

Q: Which part should be selected for new design implementations?

A: Selection depends on supply chain strategy and application requirements. The SMCJ58CA offers significantly higher inventory availability (35,200 units) compared to SMCJ58C (665 units), which may influence lead time and procurement efficiency. Both parts are functionally equivalent for general-purpose transient voltage suppression applications.

Q: Is the peak pulse current difference between 15A and 16.1A significant?

A: The SMCJ58CA's higher peak pulse current (16.1A versus 15A) represents approximately 7% additional current handling capability. Both parts maintain the same 1500W peak pulse power rating. The higher current capability of the SMCJ58CA does not create compatibility issues and may provide additional design margin in transient protection circuits.