Equivalent & Substitute Parts for SMCJ28C Transient Voltage Suppressor (TVS) Diode

Part Overview

The SMCJ28C from Taiwan Semiconductor Corporation is an active 1500W, 34.6V, 10%, bidirectional transient voltage suppressor (TVS) diode. It features surface mount construction in the DO-214AB (SMC) package. TVS diodes like SMCJ28C are critical for protecting electronics from voltage transients. Finding alternative models is necessary due to sourcing flexibility, supply chain continuity, and the need for electrical and mechanical interchangeability in maintenance or redesign processes.

Substiute Parts

SMCJ28C

Taiwan Semiconductor CorporationIn Stock: 1129SMCJ28C Datasheet

Current PartRFQ

SMCJ28CA

Fairchild SemiconductorIn Stock: 34188SMCJ28CA Datasheet

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SMCJ28CA

Fairchild SemiconductorIn Stock: 34188SMCJ28CA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts are selected based on strict equivalence in core electrical and mechanical parameters for the transient voltage suppressor category. The essential criteria used include:

• Voltage - Reverse Standoff (Typ)
• Voltage - Breakdown (Min)
• Voltage - Clamping (Max) @ Ipp
• Current - Peak Pulse (10/1000µs)
• Power - Peak Pulse
• Bidirectional Channel Count
• Mounting Type
• Package / Case
• Operating Temperature

Only parts matching these values or falling within allowable tolerance and construction for this product category are included.

Parameter Comparison

Engineering Selection Recommendations

Both SMCJ28C and SMCJ28CA are active status parts. Both are ROHS3 compliant and REACH unaffected. The ECCN and HTSUS codes are identical, supporting direct substitution for compliance and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Which parameters are essential for substituting a transient voltage suppressor (TVS) diode?
A: Key parameters include voltage reverse standoff, breakdown voltage, clamping voltage, peak pulse current, peak pulse power, bidirectionality, mounting type, package/case, and operating temperature.

Q: Is the SMCJ28CA fully compatible with the SMCJ28C in terms of footprint?
A: Both SMCJ28C and SMCJ28CA use the DO-214AB (SMC) package/case and surface mount style, ensuring mechanical compatibility.

Q: Are there any differences in compliance status between the SMCJ28C and the SMCJ28CA?
A: Both parts possess EAR99 ECCN, HTSUS 8541.10.0080, and meet ROHS3 and REACH standards as provided.

Q: Can SMCJ28CA be used in all applications currently using SMCJ28C, considering the provided parameters?
A: Based on electrical, mechanical, and compliance parameters given for Transient Voltage Suppressors (TVS), SMCJ28CA matches the requirements for substitution.

Q: Is there any difference in bidirectional capability between SMCJ28C and SMCJ28CA?
A: Both models are specified as bidirectional with one channel.

Q: Does the peak pulse power change between the two parts?
A: Both parts list a peak pulse power of 1500W (1.5kW).

Q: What is the significance of operating temperature in substitution?
A: Both parts support an identical operating temperature of -55°C to 150°C (TJ), supporting thermal compatibility in designs.