Small-signal P-Channel MOSFET for low-voltage load switching
With a maximum on-resistance of 13 Ohm at 10 mA gate drive and 10 V Vgs, this part is designed for low-current switching applications such as load disconnect, power-rail sequencing, or signal-level analog switches.
What the ratings mean for your BOM
The 13 Ohm Rds(on) is relatively high compared to power MOSFETs, but that is expected for a small-signal device in a tiny SC-75 package. The input capacitance is 5000 pF maximum at 3 V Vds, so the gate-drive rise time is not a concern for switching frequencies below a few hundred kHz. The Bulk shipping medium means the parts are not taped and reeled; if your pick-and-place line expects tape, you will need to order the tape-and-reel variant or arrange re-reeling.
Lifecycle and sourcing
The 2SJ559-T1-A is listed as Active on the lifecycle record, so there is no last-time-buy risk and it remains suitable for new designs and ongoing production.
