TIC253M-S Equivalent & Substitute Parts

Part Overview

The TIC253M-S is a standard TRIAC manufactured by Bourns Inc., rated for 600V off-state voltage and 20A on-state current in a Through Hole SOT-93 package. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning. The TIC253M-S serves applications requiring AC power control in industrial and consumer equipment within the specified voltage and current ratings.

Substiute Parts

TIC253M-S

Bourns Inc.In Stock: 1239TIC253M-S Datasheet

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MAC15MG

onsemiIn Stock: 6081MAC15MG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TIC253M-S is determined by matching the following critical electrical parameters: off-state voltage rating (600V), on-state current capability, gate trigger characteristics, and surge current handling. The MAC15MG qualifies as a substitute based on identical 600V off-state voltage rating and compatible gate trigger voltage specification. However, the on-state current rating differs: the MAC15MG is rated for 15A maximum versus the TIC253M-S at 20A. This reduction in current capacity must be evaluated against application requirements. Both devices maintain the same non-repetitive surge current rating of 150A and compatible gate trigger current specifications. Package differences (TO-218-3 versus TO-220-3) require mechanical redesign consideration but do not affect electrical substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

The MAC15MG represents an active product alternative to the obsolete TIC253M-S. Selection of the MAC15MG requires confirmation that application current requirements do not exceed 15A on-state current, as this represents a 25% reduction from the original TIC253M-S specification. The MAC15MG offers an extended operating temperature range (-40°C to 125°C) compared to the TIC253M-S (-40°C to 110°C), providing improved thermal margin in high-temperature environments. Both devices maintain ROHS3 compliance status. Package transition from TO-218-3 to TO-220-3 requires PCB layout modification and mechanical redesign of mounting hardware. Gate trigger voltage specification of the MAC15MG (1.5V maximum) is more stringent than the TIC253M-S (2V maximum), which may require gate drive circuit adjustment in existing designs.

Frequently Asked Questions (FAQ)

Q: Can the MAC15MG directly replace the TIC253M-S without circuit modification?

A: Electrical substitution is possible only if application on-state current requirements do not exceed 15A. Package differences (TO-218-3 versus TO-220-3) require PCB and mounting hardware redesign. Gate trigger voltage specification differences may necessitate gate drive circuit evaluation.

Q: What is the primary limitation of using MAC15MG as a substitute?

A: The MAC15MG on-state current rating of 15A is 5A lower than the TIC253M-S 20A rating. Applications requiring sustained currents above 15A cannot use this substitute.

Q: Are there compliance differences between the two parts?

A: Both devices are ROHS3 compliant. The MAC15MG offers an extended operating temperature range (125°C junction temperature versus 110°C case temperature for TIC253M-S), providing additional thermal headroom in high-temperature applications.

Q: How do package differences affect substitution?

A: The TIC253M-S uses TO-218-3 package while MAC15MG uses TO-220-3 package. Both are through-hole mounted, but pin configuration and mechanical dimensions differ, requiring PCB layout and mounting redesign.

Q: What gate drive considerations apply when substituting?

A: The MAC15MG gate trigger voltage maximum of 1.5V is lower than the TIC253M-S specification of 2V. Gate drive circuits must be evaluated to ensure compatibility with the more stringent trigger voltage requirement.