TIC226M-S TRIAC Equivalent & Substitute Parts

Part Overview

The TIC226M-S is a standard TRIAC rated for 600V off-state voltage and 8A on-state current 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 ongoing design support and production continuity. The part operates across a temperature range of -40°C to 110°C and is RoHS3 compliant.

Substiute Parts

TIC226M-S

Bourns Inc.In Stock: 1153TIC226M-S Datasheet

Current PartRFQ

MAC8SMG

Littelfuse Inc.In Stock: 4249MAC8SMG Datasheet

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2N6344G

LittelfuseIn Stock: 43482N6344G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the TIC226M-S is determined by the following critical parameters:

• Voltage - Off State: 600 V (minimum requirement)
• Current - On State: 8 A (minimum requirement)
• Package / Case: TO-220-3 (mechanical compatibility)
• Mounting Type: Through Hole (board-level compatibility)
• RoHS Status: ROHS3 Compliant (regulatory requirement)

Substitute parts must meet or exceed these specifications. Variations in gate trigger voltage, gate trigger current, and hold current are permissible within the scope of TRIAC functionality, provided the primary electrical ratings and package form factor remain compatible.

Parameter Comparison

Engineering Selection Recommendations

Both MAC8SMG and 2N6344G are active production parts from Littelfuse and serve as viable substitutes for the obsolete TIC226M-S.

MAC8SMG is a logic-sensitive gate TRIAC with reduced gate trigger current (5 mA vs. 50 mA) and lower gate trigger voltage (1.5 V vs. 2 V). This variant is suitable for applications requiring lower gate drive power. The extended operating temperature range (-40°C to 125°C) provides additional thermal margin compared to the original part.

2N6344G is a standard TRIAC with electrical characteristics closely aligned to the TIC226M-S. Gate trigger specifications match the original part (Vgt 2 V, Igt 50 mA). The higher non-repetitive surge current rating (100A @ 60Hz vs. 70A @ 50Hz) and extended operating temperature range offer improved performance margins. Both substitute parts maintain full RoHS3 compliance and MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can MAC8SMG replace TIC226M-S directly in existing designs?

A: MAC8SMG meets the core electrical requirements (600V, 8A, TO-220-3 package). The sensitive gate characteristics require lower gate drive current, which may improve circuit efficiency but does not prevent direct substitution if the gate drive circuit is compatible with the reduced trigger current specification.

Q: What is the difference between MAC8SMG and 2N6344G?

A: MAC8SMG is a logic-sensitive gate variant with lower gate trigger specifications (Vgt 1.5V, Igt 5mA). 2N6344G is a standard TRIAC with gate specifications matching the original TIC226M-S (Vgt 2V, Igt 50mA). Selection depends on gate drive circuit design and power consumption requirements.

Q: Are the TO-220AB and TO-220 packages mechanically compatible?

A: Both MAC8SMG (TO-220AB) and 2N6344G (TO-220AB) use the TO-220-3 case outline. The TO-220AB designation indicates a variant of the standard TO-220 package. Mechanical compatibility with existing PCB layouts and heatsinks is maintained.

Q: Do substitute parts maintain the same operating temperature range?

A: Both MAC8SMG and 2N6344G operate from -40°C to 125°C (TJ), extending the upper temperature limit by 15°C compared to the original TIC226M-S (-40°C to 110°C TC). This provides additional thermal headroom in high-temperature applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. TIC226M-S, MAC8SMG, and 2N6344G are all RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting current regulatory requirements for electronic component procurement.