SMCJ17C Transient Voltage Suppressor - Equivalent & Substitute Parts

Part Overview

The SMCJ17C is a 1500W bidirectional transient voltage suppressor (TVS) diode manufactured by Taiwan Semiconductor Corporation. This surface mount component operates at a reverse standoff voltage of 17V with a maximum clamping voltage of 30.5V at peak pulse current. The device is designed for general-purpose transient voltage suppression applications and is currently in active production status with 733 units available in inventory.

Identifying equivalent and substitute parts becomes necessary when the primary component experiences supply constraints, extended lead times, or when design flexibility permits component standardization across manufacturing facilities. Substitute parts must maintain electrical equivalence across critical parameters including reverse standoff voltage, clamping voltage, peak pulse current, and power dissipation ratings.

Substiute Parts

SMCJ17C

Taiwan Semiconductor CorporationIn Stock: 788SMCJ17C Datasheet

Current PartRFQ

SMCJ17CA

Fairchild SemiconductorIn Stock: 6192SMCJ17CA Datasheet

SimilarRFQ

SMCJ17CA

Fairchild SemiconductorIn Stock: 6192SMCJ17CA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMCJ17C are identified based on strict electrical and mechanical parameter equivalence. The substitution logic is based on the following critical parameters:

Electrical Equivalence Criteria:

• Reverse standoff voltage of 17V (±tolerance)
• Breakdown voltage minimum of 18.9V or higher
• Clamping voltage maximum of 30.5V or lower at peak pulse current
• Peak pulse current rating of 51A or higher
• Peak pulse power rating of 1500W or higher

Mechanical Equivalence Criteria:

• Surface mount package type (DO-214AB/SMC)
• Bidirectional suppression capability (1 channel)
• Operating temperature range encompassing -55°C to 150°C

Compliance Criteria:

• Active product status
• ROHS3 compliance
• REACH unaffected status
• ECCN classification EAR99

The SMCJ17CA from Fairchild Semiconductor meets these substitution criteria and is classified as an equivalent part for the SMCJ17C.

Parameter Comparison

Engineering Selection Recommendations

Primary Component (SMCJ17C): The SMCJ17C remains the preferred selection when available. This component carries ROHS3 compliance certification and REACH unaffected status, confirming regulatory alignment for global applications. Active production status with 733 units in current inventory supports supply reliability for immediate procurement requirements.

Substitute Component (SMCJ17CA): The SMCJ17CA from Fairchild Semiconductor is electrically equivalent based on the 17V rating classification within the SMCJ series. This substitute carries identical ECCN and HTSUS classifications, confirming trade compliance equivalence. The component maintains active production status. Higher inventory availability (6100 units) may support extended production runs or supply chain diversification strategies.

Selection Criteria:

• Use SMCJ17C when primary supplier inventory meets project timeline requirements
• Use SMCJ17CA when supply constraints on the primary component necessitate alternative sourcing
• Both components satisfy identical regulatory compliance requirements (ROHS3, REACH unaffected, EAR99)
• Packaging format differences (Tape & Reel versus Bulk) should be evaluated against assembly process requirements

Frequently Asked Questions (FAQ)

Q: Can SMCJ17CA be used as a direct replacement for SMCJ17C in existing designs?

A: Yes. Both components are classified within the SMCJ17 series with identical 17V reverse standoff voltage ratings. Both carry equivalent ECCN and HTSUS classifications. Component substitution is permissible when electrical parameters remain within design tolerance windows.

Q: What are the key electrical parameters that determine substitution compatibility?

A: The critical parameters are reverse standoff voltage (17V), breakdown voltage minimum (18.9V), clamping voltage maximum (30.5V at peak pulse current), peak pulse current (51A), and peak pulse power (1500W). Substitute parts must maintain these specifications within the design's acceptable tolerance range.

Q: Are there packaging differences between SMCJ17C and SMCJ17CA?

A: Yes. The SMCJ17C is supplied in Tape & Reel (TR) packaging, while SMCJ17CA is supplied in Bulk packaging. Both use the DO-214AB (SMC) surface mount package type. Assembly process compatibility should be verified based on your manufacturing equipment specifications.

Q: Do both components meet the same regulatory compliance standards?

A: Yes. Both SMCJ17C and SMCJ17CA are ROHS3 compliant and REACH unaffected. Both carry EAR99 ECCN classification and 8541.10.0080 HTSUS code, confirming identical regulatory status for global distribution.

Q: What inventory considerations should influence component selection?

A: SMCJ17C has 733 units in current stock, while SMCJ17CA has 6100 units available. For high-volume production or extended lead time mitigation, SMCJ17CA's higher inventory may provide supply chain advantages. For immediate, limited-quantity requirements, SMCJ17C availability may be sufficient.

Q: Is the operating temperature range identical between both components?

A: The SMCJ17C operating temperature range is specified as -55°C to 150°C (TJ). Complete operating temperature data for SMCJ17CA is not provided in the available documentation. Temperature range compatibility should be confirmed through the substitute component's detailed datasheet before final design approval.