TIC225S-S Equivalent & Substitute Parts

Part Overview

The TIC225S-S is a Logic - Sensitive Gate TRIAC manufactured by Bourns Inc., rated for 700 V off-state voltage and 8 A on-state current in a TO-220-3 through-hole package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design requirements and production continuity. The sensitive gate configuration enables reliable triggering at low gate currents, suitable for applications requiring precise gate control in AC switching circuits.

Key Parameters

Parameter	TIC225S-S
Voltage - Off State	700 V
Current - On State (It (RMS)) (Max)	8 A
Voltage - Gate Trigger (Vgt) (Max)	2 V
Current - Gate Trigger (Igt) (Max)	5 mA
Current - Hold (Ih) (Max)	20 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	70 A @ 50Hz
Operating Temperature Range	-40°C ~ 110°C (TC)
Package / Case	TO-220-3
Mounting Type	Through Hole
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the TIC225S-S is determined by the following critical parameters:

Primary Substitution Criteria:

Triac Type: Logic - Sensitive Gate configuration
Voltage - Off State: 700 V minimum
Current - On State (It (RMS)): 8 A minimum
Package / Case: TO-220-3
Mounting Type: Through Hole

Secondary Compatibility Factors:

Voltage - Gate Trigger (Vgt): Lower or equal values ensure reliable gate control
Current - Gate Trigger (Igt): Lower or equal values reduce gate drive requirements
Operating Temperature Range: Must accommodate application requirements
RoHS Compliance: ROHS3 Compliant status for regulatory alignment

The substitute parts identified below meet the primary substitution criteria with variations in secondary parameters that remain within acceptable engineering tolerances for equivalent functionality.

Parameter Comparison

Parameter	TIC225S-S (Bourns)	T410-700T (STMicroelectronics)	BTB08-600SWRG (STMicroelectronics)	BTB16-700SWRG (STMicroelectronics)
Triac Type	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate	Standard
Voltage - Off State	700 V	700 V	600 V	100 V
Current - On State (It (RMS)) (Max)	8 A	4 A	8 A	16 A
Voltage - Gate Trigger (Vgt) (Max)	2 V	1.3 V	1.3 V	1.3 V
Current - Gate Trigger (Igt) (Max)	5 mA	10 mA	10 mA	10 mA
Current - Hold (Ih) (Max)	20 mA	15 mA	15 mA	Not specified
Operating Temperature Range	-40°C ~ 110°C (TC)	-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
Product Status	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

T410-700T (STMicroelectronics) is the closest functional equivalent to the TIC225S-S. Both components share identical off-state voltage (700 V), Logic - Sensitive Gate configuration, and TO-220-3 packaging. The T410-700T maintains active product status with ROHS3 compliance and extended operating temperature range (-40°C ~ 125°C). The primary limitation is reduced on-state current (4 A versus 8 A), making this substitute suitable only for applications requiring 4 A or less.

BTB08-600SWRG (STMicroelectronics) provides equivalent on-state current (8 A) and Logic - Sensitive Gate configuration with active product status and ROHS3 compliance. The off-state voltage is reduced to 600 V, limiting this substitute to applications with maximum voltage requirements of 600 V or less. Extended operating temperature range (-40°C ~ 125°C) and improved gate trigger characteristics (1.3 V) are advantageous for gate drive circuit design.

BTB16-700SWRG (STMicroelectronics) matches the 700 V off-state voltage and TO-220-3 package but differs significantly in triac type (Standard versus Logic - Sensitive Gate) and on-state current (16 A). This component is suitable only for applications where the Standard triac type and higher current rating are compatible with the original circuit design.

All substitute parts maintain ROHS3 compliance and active product status, ensuring regulatory alignment and long-term availability.

Frequently Asked Questions (FAQ)

Q: Can the T410-700T directly replace the TIC225S-S in all applications?

A: The T410-700T is functionally equivalent for applications requiring 4 A or less on-state current. Applications requiring the full 8 A rating of the TIC225S-S require alternative substitutes or design modification.

Q: What is the primary difference between the BTB08-600SWRG and the TIC225S-S?

A: The BTB08-600SWRG operates at 600 V off-state voltage compared to 700 V for the TIC225S-S. This substitute is suitable only for circuits with maximum voltage requirements of 600 V or less. On-state current (8 A) and gate configuration (Logic - Sensitive Gate) are equivalent.

Q: Why is the BTB16-700SWRG listed as a substitute if it has different specifications?

A: The BTB16-700SWRG matches the 700 V off-state voltage and TO-220-3 package. However, it uses a Standard triac type instead of Logic - Sensitive Gate and provides higher on-state current (16 A). This substitute is applicable only when the circuit design accommodates these differences.

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

A: Yes, all substitute parts use TO-220-3 through-hole packaging, maintaining identical mechanical compatibility and PCB layout requirements.

Q: Do the substitute parts have the same operating temperature range as the TIC225S-S?

A: The TIC225S-S operates from -40°C to 110°C (TC). All substitute parts extend this range to -40°C to 125°C (TJ), providing improved thermal performance for demanding applications.

Q: Are all substitute parts RoHS compliant?

A: Yes, all substitute parts listed are ROHS3 compliant, matching the regulatory status of the TIC225S-S.

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