NL5ST4599DFT2G

The NL5ST4599DFT2G is a single-pole double-throw analog switch in the miniature SC-88 package, supplied on tape and reel for signal routing in industrial equipment. Electrically it matches its S-suffix sibling — a single 2.0 V to 5.5 V supply, on-resistance of 25 Ω maximum at 5.5 V with 6 Ω flatness at 4.5 V, 200 MHz bandwidth, -93 dB off-isolation at 100 kHz, 3 pC charge injection, a typical 8 ns turn-on time and break-before-make switching — but its select input decodes TTL levels: VIH is 2.0 V at 4.5 V and 5.5 V supplies and 1.5 V at 3.0 V, and the input tolerates 5.5 V regardless of VCC. ESD protection exceeds 4 kV HBM and operation spans -55 °C to +125 °C. That threshold choice matters in mixed-voltage systems: a 5 V microcontroller can command the switch directly even when the analog rail sits at 3 V, with no level shifter and no ambiguity at mid-rail levels. Selection note: choose the ST version for TTL-referenced control; if your select line is generated by logic powered from the same rail as the switch, the CMOS-threshold NL5S4599D is the cleaner match. Parameters verified against onsemi documentation.