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PRODUCTION DATA

6.3 Thermal Information

THERMAL METRIC⁽¹⁾		CD74HCT4075	UNIT
		N (PDIP)
		14 PINS
R_θJA	Junction-to-ambient thermal resistance	61.2	°C/W
R_θJC(top)	Junction-to-case (top) thermal resistance	48.9	°C/W
R_θJB	Junction-to-board thermal resistance	40.9	°C/W
Ψ_JT	Junction-to-top characterization parameter	28.6	°C/W
Ψ_JB	Junction-to-board characterization parameter	40.7	°C/W
R_θJC(bot)	Junction-to-case (bottom) thermal resistance	N/A	°C/W

(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report.