The TS1851ILT: RoHS3 compliant, so it passes the current environmental compliance gate without an exemption letter.
630 kHz GBW — where this op-amp fits in a signal chain
With a gain-bandwidth product of 630 kHz and a 0.25 V/µs slew rate, this is a general-purpose amplifier for low-to-moderate speed signals — think sensor conditioning, ADC buffering, or filter stages where the signal content stays below about 60 kHz at unity gain.
No need for a separate supply rail just for the op-amp. Quiescent supply current is 162 µA — low enough for battery-powered field instruments that run continuously, but not an ultra-micro-power part. The 48 mA output drive can directly drive a modest load or a downstream ADC input.
SOT-23-5 — board-fit for tight layouts
Housed in the SOT-23-5 (SC-74A) package, this is a five-pin surface-mount package with 0.95 mm pitch — hand-solderable with a fine tip, and reflow-friendly for production. The small footprint (roughly 3×3 mm) fits into sensor modules or portable device PCBs where board area is tight.