TIC201S-S TRIAC Equivalent & Substitute Parts

Part Overview

The TIC201S-S is a standard TRIAC rated for 700V off-state voltage and 2.5A 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 new designs and ongoing production support. The TIC201S-S serves as a general-purpose thyristor for AC switching applications requiring moderate current handling at high voltage levels.

Key Parameters

Parameter	Value
Manufacturer Part Number	TIC201S-S
Manufacturer	Bourns Inc.
Category	Thyristors
Voltage - Off State	700 V
Current - On State (It (RMS)) (Max)	2.5 A
Voltage - Gate Trigger (Vgt) (Max)	2.5 V
Current - Gate Trigger (Igt) (Max)	25 mA
Current - Hold (Ih) (Max)	30 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	12A @ 50Hz
Triac Type	Standard
Operating Temperature	-40°C ~ 110°C (TC)
Mounting Type	Through Hole
Package / Case	TO-220-3
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the TIC201S-S is determined by the following critical parameters:

Voltage Rating (Off State): Must be 700V or higher to maintain voltage margin
Current Rating (On State): Must be equal to or greater than 2.5A to handle design current
Package Type: TO-220-3 through-hole configuration for mechanical and thermal compatibility
Gate Trigger Characteristics: Vgt and Igt parameters determine gate drive circuit compatibility
Operating Temperature Range: Must support the application's thermal requirements
RoHS Compliance: ROHS3 compliance required for regulatory alignment

Substitute parts are grouped into two categories based on current rating capacity and gate sensitivity:

Group 1 - Higher Current Capacity (10A+): ACST1010-7T, ACST1035-7T, ACST1210-7T. These parts exceed the 2.5A requirement and provide design margin for applications with potential current growth or thermal headroom.

Group 2 - Lower Current Capacity (4A): T410-700T. This part meets the 2.5A minimum requirement with modest margin and is suitable for direct replacement in current-limited applications.

Group 3 - Voltage Mismatch: BTB16-700SWRG operates at 100V off-state voltage and is not suitable as a substitute due to insufficient voltage rating for 700V applications.

Parameter Comparison

Parameter	TIC201S-S	T410-700T	ACST1010-7T	ACST1035-7T	ACST1210-7T	BTB16-700SWRG
Voltage - Off State	700 V	700 V	700 V	700 V	700 V	100 V
Current - On State (It (RMS)) (Max)	2.5 A	4 A	10 A	10 A	12 A	16 A
Voltage - Gate Trigger (Vgt) (Max)	2.5 V	1.3 V	1 V	1 V	1 V	1.3 V
Current - Gate Trigger (Igt) (Max)	25 mA	10 mA	10 mA	35 mA	10 mA	10 mA
Current - Hold (Ih) (Max)	30 mA	15 mA	30 mA	50 mA	30 mA	Not specified
Triac Type	Standard	Logic - Sensitive Gate	Logic - Sensitive Gate	Standard	Logic - Sensitive Gate	Standard
Operating Temperature	-40°C ~ 110°C (TC)	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3
Product Status	Obsolete	Active	Active	Active	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Recommended Primary Substitutes: ACST1010-7T and ACST1035-7T from STMicroelectronics are the preferred substitutes. Both maintain the 700V voltage rating, exceed the 2.5A current requirement, and carry active product status with ROHS3 compliance. ACST1010-7T features sensitive gate characteristics with lower Vgt (1V) and Igt (10mA), reducing gate drive circuit complexity. ACST1035-7T is a standard TRIAC with higher gate trigger current (35mA), providing robust gate drive margin.

Secondary Substitute: T410-700T is suitable for applications where current margin is less critical. This part maintains 700V voltage rating and provides 4A on-state current, exceeding the 2.5A minimum. The sensitive gate characteristics (Vgt 1.3V, Igt 10mA) require gate drive circuit verification against the original TIC201S-S design.

Not Recommended: BTB16-700SWRG operates at 100V off-state voltage and is unsuitable for 700V applications. This part does not meet the voltage substitution criterion.

Obsolete Parts: ACST1210-7T is classified as obsolete and should not be selected for new designs despite meeting electrical parameters.

Frequently Asked Questions (FAQ)

Q: Can the T410-700T directly replace the TIC201S-S in all applications?

A: T410-700T meets the minimum electrical requirements (700V, 4A) and shares the TO-220-3 package. However, gate trigger characteristics differ: T410-700T has Vgt of 1.3V and Igt of 10mA compared to TIC201S-S values of 2.5V and 25mA. Gate drive circuits must be evaluated for compatibility with the lower trigger voltage and current.

Q: Why is BTB16-700SWRG listed as a substitute if it cannot be used?

A: BTB16-700SWRG was included in the original substitute list but does not meet substitution criteria due to its 100V off-state voltage rating. It is not suitable for 700V applications and should not be selected.

Q: What is the difference between standard and sensitive gate TRIACs?

A: Standard TRIACs require higher gate trigger voltage and current for reliable switching. Sensitive gate TRIACs (Logic - Sensitive Gate) operate with lower trigger thresholds, reducing gate drive circuit power requirements. Selection depends on the existing gate drive circuit design.

Q: Are all substitute parts available in the same packaging?

A: All recommended substitutes use the TO-220-3 through-hole package, ensuring mechanical and thermal compatibility with the original TIC201S-S footprint.

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

A: Substitute parts support -40°C to 125°C (TJ), which exceeds the TIC201S-S range of -40°C to 110°C (TC). This provides additional thermal margin for new designs.

Q: Which substitute offers the best long-term availability?

A: ACST1010-7T and ACST1035-7T carry active product status, ensuring long-term availability and supply continuity. T410-700T is also active. ACST1210-7T is obsolete and should not be selected for new production.

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