CSNF651 by Honeywell Sensing And Control is an industrial-grade analog circuit with 3 terminals. It operates b/w -40 to 85°C, supporting supply voltages from -15V to 15V. Ideal for applications requiring a special shape rectangular package style and through-hole terminal form.
LM555CM by Texas Instruments is an Analog Waveform Generation IC with a supply voltage range of 4.5V to 16V and max operating temperature of 70°C. It comes in a small outline package, suitable for applications requiring pulse generation or rectangular waveform outputs. With surface mount capability and low supply current of 15mA, it is ideal for commercial-grade electronic circuits.