KTM19x1 series TMR based magnetic switches
General information
The sensors in the KTM19x1 family are magnetic switch sensors based on the tunnelmagnetoresistive (TMR) effect.
The sensors offer
- Very small size (SOT 23-3L package)
- Low power consumption
- wide supply voltage range 1.8 V to 5.5 V
- extended ambient temperatur range -40 °C to +125 °C
Product variants
This product family has various sensor variants for you to choose from.
Push-Pull output stage:
- KTM1901 omnipolar switch
- KTM1911 unipolar switch (south pole)
- KTM1931 bipolar switch (latch)
Open-Drain output stage:
- KTM1902 omnipolar switch
- KTM1912 unipolar switch (south pole)
Application examples
Suitable for different switching applications e.g.:
- non.contact end-point detection
- water-, electric- or gas-meters
- switch detection for laptops
General information
The sensors of the KTM19xx sensor family are magnetic sensors with integrated tunneling magnetoresistance (TMR) and CMOS technology for use in industrial and consumer switch applications. The temperature compensation circuitry improves stability of magnetic switch points over the whole operating range.
The sensors have a wide operating voltage range (1.8 V up to 5.5 V) and a wide operating temperature
range up to +125 °C.
Within the sensor families there are different variants available.
Sensors with ...
- various switching characteristics
- different switching points
- push-pull or open drain output stage
- high frequency switching of low-power version with 50 Hz switching frequency
The KTM19xx sensors are available in SOT23-3L packages.
Please contact our sales team if you need more information about available types and if you need samples.
Product variants
| Name | Characteristic | Operation point | Release point | Sampling frequency | Output |
|---|---|---|---|---|---|
| KTM1901TA | omnipolar | ±45 G | ±36 G | continuous | push-pull |
| KTM1901TC | omnipolar | ±18 G | ±12 G | continuous | push-pull |
| KTM1911TC | unipolar (south) | +18 G | +12 G | continuous | push-pull |
| KTM1931TC | bipolar (latch) | +18 G | -18 G | continuous | push-pull |
| KTM1902SD | omnipolar | ±9 G | ±6 G | 50 Hz | open-drain |
| KTM1912SC | unipolar (south) | +18 G | +12 G | 50 Hz | open-drain |
KTM1901
The KTM1901 is an omnipolar magnetic sensor with integrated tunneling magnetoresistance (TMR) and CMOS technology for use in industrial and consumer switch applications. The temperature compensation circuitry improves stability of magnetic switch points over the whole operating range. The KTM1901 has a wide operating voltage range and a wide operating temperature range. The sensor output is equipped with a push-pull stage.
The KTM1901 are available in SOT23-3L packages.
KTM1911
The KTM1911 is magnetic sensor with integrated tunneling magnetoresistance (TMR) and CMOS technology for use in industrial and consumer switch applications for detection of a magnetic south pole. The temperature compensation circuitry improves stability of magnetic switch points over the whole operating range. The KTM1911 has a wide operating voltage range and a wide operating temperature
range. The sensor output is equipped with a push-pull stage and provides a high output frequency with a very low average power consumption.
The KTM1911 are available in SOT23-3L packages.