CJ2301

CJ2301 is a P-channel MOSFET from CJ (Jiangsu Changjing) in SOT-23, verified against the Changjing datasheet, which prints device marking S1 for this code. Verified figures: drain-source breakdown voltage of -20 V, continuous drain current of -2.3 A, on-state resistance of 0.065 Ω typical and 0.112 Ω maximum at -4.5 V gate drive, gate-threshold voltage of -0.4 V minimum, -0.7 V typical and -1.0 V maximum, and power dissipation of 0.4 W. Selection advice: keep this code separate from the CJ2301S, a different Changjing variant rated at 0.35 W whose figures do not carry over, and read the resistance at the -4.5 V row when the switch is driven from a logic rail — the verified table for this code is a low-voltage-drive table. Parameters verified against the Changjing CJ2301 datasheet.