TIC236D-S TRIAC Equivalent & Substitute Parts

Part Overview

The TIC236D-S is a standard TRIAC manufactured by Bourns Inc., rated for 400V off-state voltage and 12A 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 support and procurement continuity. The TIC236D-S operates across a temperature range of -40°C to 110°C and is RoHS3 compliant with unlimited moisture sensitivity rating.

Key Parameters

Parameter	TIC236D-S
Voltage - Off State	400 V
Current - On State (It (RMS)) (Max)	12 A
Voltage - Gate Trigger (Vgt) (Max)	2 V
Current - Non Rep. Surge 50, 60Hz (Itsm)	100A @ 50Hz
Current - Gate Trigger (Igt) (Max)	50 mA
Current - Hold (Ih) (Max)	40 mA
Operating Temperature Range	-40°C ~ 110°C (TC)
Package / Case	TO-220-3
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the TIC236D-S is determined by the following critical parameters:

Voltage Rating (Off State): Must equal or exceed 400V to maintain circuit protection margins
Current Rating (On State): The substitute must support the required load current; lower ratings indicate reduced current capacity
Gate Trigger Parameters (Vgt, Igt): Must remain within acceptable ranges to ensure reliable gate control
Hold Current (Ih): Must be compatible with circuit holding requirements
Package and Mounting: TO-220-3 through-hole configuration is required for mechanical and thermal compatibility
Temperature Operating Range: Must cover the application's thermal environment
Compliance Standards: RoHS3 compliance is mandatory for regulatory alignment

The T2800DG from Littelfuse Inc. meets the core voltage and package requirements but operates at a reduced on-state current rating of 8A compared to the original 12A specification.

Parameter Comparison

Parameter	TIC236D-S (Bourns)	T2800DG (Littelfuse)	Compatibility Notes
Voltage - Off State	400 V	400 V	Matched
Current - On State (It (RMS)) (Max)	12 A	8 A	Substitute rated lower; verify load current requirements
Voltage - Gate Trigger (Vgt) (Max)	2 V	2.5 V	Substitute requires higher gate voltage
Current - Non Rep. Surge 50, 60Hz (Itsm)	100A @ 50Hz	100A @ 60Hz	Surge ratings equivalent at different frequencies
Current - Gate Trigger (Igt) (Max)	50 mA	25 mA	Substitute requires lower gate current
Current - Hold (Ih) (Max)	40 mA	30 mA	Substitute has lower hold current requirement
Operating Temperature Range	-40°C ~ 110°C (TC)	-40°C ~ 125°C (TJ)	Substitute supports extended upper temperature limit
Package / Case	TO-220-3	TO-220-3	Matched
Mounting Type	Through Hole	Through Hole	Matched
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Matched

Engineering Selection Recommendations

The T2800DG is a direct substitute for the obsolete TIC236D-S when the application load current does not exceed 8A. Both components share identical 400V off-state voltage ratings, TO-220-3 package configurations, and RoHS3 compliance status, ensuring regulatory and mechanical compatibility.

The T2800DG from Littelfuse Inc. is currently in active production status, providing long-term availability and supply chain stability compared to the obsolete TIC236D-S. The extended operating temperature range of the T2800DG (-40°C to 125°C) offers additional thermal margin for demanding applications.

Selection of the T2800DG requires verification that the circuit load current remains within the 8A maximum on-state rating. Applications requiring the full 12A capacity of the original TIC236D-S must identify alternative components with higher current ratings.

Frequently Asked Questions (FAQ)

Q: Can the T2800DG directly replace the TIC236D-S in all applications?

A: The T2800DG is mechanically and electrically compatible for applications where the load current does not exceed 8A. If the circuit requires the full 12A capacity of the TIC236D-S, alternative components with higher current ratings must be selected.

Q: What is the significance of the different gate trigger voltage specifications?

A: The T2800DG requires a maximum gate trigger voltage of 2.5V compared to 2V for the TIC236D-S. This difference means the substitute may require slightly higher gate drive voltage to achieve reliable triggering. Existing gate drive circuits must be evaluated to confirm compatibility.

Q: Are both components suitable for the same temperature environments?

A: Both components operate from -40°C to at least 110°C. The T2800DG extends to 125°C, providing additional thermal headroom. For applications operating near the upper temperature limit, the T2800DG offers improved margin.

Q: What is the difference between the surge current specifications?

A: Both components are rated for 100A non-repetitive surge current, but at different line frequencies: the TIC236D-S at 50Hz and the T2800DG at 60Hz. This reflects regional power system standards and does not affect substitution compatibility.

Q: Why is the T2800DG listed as active while the TIC236D-S is obsolete?

A: The TIC236D-S has been discontinued by Bourns Inc., making it unavailable for new procurement. The T2800DG remains in active production by Littelfuse Inc., ensuring continued availability and supply chain support for new designs and legacy system maintenance.

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