HMC1021S Honeywell,, Unipolar Magnetoresistive Sensor, 2 → 25 V, 8-Pin. Mounting Type: Surface Mount. Minimum Operating Supply Voltage: 2 V. Length: 4.98mm. Width: 3.988mm. Dimensions: 4.979 x 3.988 x 1.728mm. Minimum Operating Temperature: -55 °C. Maximum Operating Temperature: +150 °C.