The Microchip MCP6231UT-E/LT is a single-channel general-purpose op-amp with a 300 kHz gain-bandwidth product and a 0.15 V/µs slew rate. This is a micropower part, drawing just 20 µA of supply current, so it's built for battery-powered or loop-powered sensor conditioning where every microamp matters. The 300 kHz GBW means you get clean gain up to about 30 kHz at a gain of 10 — plenty for thermocouple outputs, strain-gauge bridges, or photodiode front-ends that don't need video-speed settling.
The SC-70-5 package (also known as SOT-353) is a five-lead, surface-mount footprint that fits tight layouts — about 2.0 mm × 2.1 mm. That's small enough to slip into a sensor probe or a compact I/O module.
If you're looking for a pin-compatible alternative with higher bandwidth, the MCP6281T-E/SN (5 MHz) and MCP6291T-E/MS (10 MHz) are in the same family, but they draw more supply current — 400 µA and 1 mA respectively — so the trade-off is speed versus battery life.