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Q2004F31 is listed in the Triacs range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is TRIAC SENS GATE 200V 4A TO202. Review the specifications below when checking this part for your BOM.
The Q2004F31 is a logic-level sensitive gate TRIAC manufactured by Littelfuse Inc. It features a 200V repetitive peak off-state voltage and a 4A on-state current rating. The device utilizes a TO-202 package for through-hole mounting. Key electrical specifications include a gate trigger current of 10mA, with additional gate parameters listed as 10mA and 10mA in official documentation. This component serves as a bidirectional solid-state switch designed for AC switching and phase control applications.
Verify the obsolete lifecycle status before procurement planning. Confirm that the TO-202 package footprint matches the target PCB design. Ensure the 200V voltage rating and 4A current capacity meet the specific circuit requirements. Check for available replacement components from the manufacturer due to end-of-life status.
Select this component for low-power AC switching tasks requiring logic-level gate drive. The 200V rating suits low-voltage AC lines. Consider the TO-202 package size constraints. Evaluate thermal management needs for continuous 4A operation. Verify compatibility with existing logic control signals given the sensitive gate characteristics.
This part belongs to the Low Power TRIAC series from Littelfuse, covering ratings up to 1200V. It is an industry-standard thyristor designed for rigorous hardware requirements. The Q2004F31 specifically addresses the lower end of the power range within this family, offering compact switching solutions.
Public confirmed substitute part numbers are not provided in the source material. Due to the obsolete lifecycle status, consult Littelfuse for current alternative recommendations or equivalent logic-gate TRIACs with matching voltage and current ratings.
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