TIC116D-S Equivalent & Substitute Parts

Part Overview

The TIC116D-S is a Silicon Controlled Rectifier (SCR) rated for 400V off-state voltage with 8A RMS current capacity in a TO-220-3 through-hole package, manufactured by Bourns Inc. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. The TIC116D-S features standard recovery characteristics with a maximum gate trigger voltage of 1.5V and gate trigger current of 20mA, suitable for AC switching and power control applications.

Substiute Parts

TIC116D-S

Bourns Inc.In Stock: 2414TIC116D-S Datasheet

Current PartRFQ

MCR8SDG

onsemiIn Stock: 2208MCR8SDG Datasheet

DirectRFQ

S4012R

LittelfuseIn Stock: 1123S4012R Datasheet

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S4012RTP

Littelfuse Inc.In Stock: 2316S4012RTP Datasheet

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S4016RTP

Littelfuse Inc.In Stock: 711S4016RTP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the TIC116D-S is determined by the following critical parameters: off-state voltage rating (400V), on-state RMS current capacity (8A minimum), gate trigger characteristics (Vgt and Igt), package type (TO-220-3), and mounting method (through-hole). The substitute parts are grouped into two categories:

Direct Functional Equivalent: MCR8SDG meets the 400V and 8A RMS specifications with compatible gate trigger parameters, though with improved sensitivity (lower Igt of 200µA versus 20mA). This part is active and available.

Higher Current Capacity Alternatives: S4012RTP and S4016RTP provide 12A and 16A RMS current ratings respectively, both at 400V with standard recovery characteristics. These parts exceed the original 8A specification and are suitable for applications requiring additional current margin or higher power handling.

Parameter Comparison

Engineering Selection Recommendations

MCR8SDG is the primary direct substitute for TIC116D-S applications. It maintains identical voltage and current ratings with active product status and full availability. The sensitive gate characteristic (Igt 200µA) provides improved gate drive efficiency compared to the standard gate TIC116D-S. Operating temperature range matches the original specification. This part is recommended for direct replacement in existing designs.

S4012RTP and S4016RTP are suitable alternatives when higher current capacity is acceptable or required. Both parts are active with extended operating temperature range (-40 to 125°C versus -40 to 110°C) and ROHS3 compliance. S4012RTP provides 12A RMS capacity with identical gate trigger specifications to the original part. S4016RTP offers 16A RMS capacity with slightly higher gate trigger current (30mA). These parts are appropriate for applications where current margin or thermal headroom is beneficial.

All substitute options maintain TO-220-3 package compatibility and through-hole mounting, ensuring mechanical and thermal interface compatibility with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can MCR8SDG directly replace TIC116D-S in all applications? A: MCR8SDG is a direct functional equivalent with matching 400V and 8A RMS ratings. The sensitive gate characteristic (lower Igt) is compatible with standard gate drive circuits. Verify gate drive voltage and current capability in your specific application, as the MCR8SDG requires only 200µA gate trigger current versus 20mA for the TIC116D-S.

Q: What is the difference between standard recovery and sensitive gate SCRs? A: Standard recovery SCRs (TIC116D-S, S4012RTP, S4016RTP) require higher gate trigger current (20-30mA) for reliable triggering. Sensitive gate SCRs (MCR8SDG) require significantly lower gate trigger current (200µA), reducing gate drive circuit complexity and power consumption. Both types are suitable for AC switching applications.

Q: Can I use S4012RTP or S4016RTP as substitutes if my application only requires 8A? A: Yes. S4012RTP (12A) and S4016RTP (16A) exceed the 8A requirement and are backward compatible. Higher current ratings provide additional safety margin and thermal headroom. All other electrical parameters (voltage, gate characteristics, temperature range) are compatible or superior.

Q: Are all substitute parts available in the same package? A: All substitute parts use TO-220-3 through-hole packages. MCR8SDG is supplied in TO-220AB variant, which is mechanically and electrically compatible with TO-220-3. S4012RTP and S4016RTP use TO-220 Non-Isolated Tab packages, also compatible with TO-220-3 mounting.

Q: What compliance certifications apply to these substitute parts? A: MCR8SDG, S4012RTP, and S4016RTP are ROHS3 compliant. S4012RTP and S4016RTP include REACH Unaffected status. All parts carry ECCN EAR99 and HTSUS 8541.30.0080 classifications matching the original TIC116D-S.

Q: How do I select between MCR8SDG and the Littelfuse alternatives? A: MCR8SDG is the direct 8A equivalent with active status and immediate availability. Select MCR8SDG for direct replacement. Choose S4012RTP or S4016RTP if your application benefits from higher current capacity or extended temperature range (-40 to 125°C). All three parts are electrically compatible with TIC116D-S gate drive circuits.