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Magnetic Sensors - Linear, Compass (ICs)

Magnetic Sensors Linear Compass Ics sit in that awkward but necessary space between simple Hall switches and full inertial measurement units. They detect magnetic field direction or linear position and are commonly used in navigation modules, industrial automation, motor control, and consumer devices where orientation matters. On the distribution side, we usually see these devices grouped into linear Hall sensors, angle sensors, magnetoresistive sensors, and dedicated electronic compass ICs, often with I2C or SPI interfaces and factory calibration data baked in. Engineers tend to focus on sensitivity, offset drift, temperature range, and package size. Procurement teams look at different things: authorized sourcing, date codes, and whether the part is on allocation. A sensor that works perfectly on the bench can still be a headache if the supply chain is unstable. We have seen more than one project delayed because a low cost compass IC was only available through gray market channels, and that risk usually is not worth the savings. Counterfeit magnetic sensors are less common than memory chips, but they do show up, especially in popular automotive and industrial lines. Another practical point is packaging. Many buyers prefer tape and reel for volume production, but small engineering runs often need cut tape or trays. We try to match the packaging to the build stage so customers are not paying for excess handling. Lead time and price rarely move together. Paying a bit more for stock on the shelf can be cheaper than waiting eight weeks for factory allocation, particularly when the end product is already late. If you are sourcing Magnetic Sensors Linear Compass Ics, check current stock and request a quote directly at icxing.com.

Frequently Asked Questions

What magnetic field range and sensitivity should I select for my compass application?

Choose a sensor whose full-scale range exceeds your expected maximum field (typically ±2 to ±8 gauss for consumer compassing) with at least 20% headroom. Sensitivity should allow resolution of at least 0.1 µT for basic navigation; high-precision applications may require 10 mG resolution or better. Consider whether you need 2-axis (cost-effective) or 3-axis (tilt-compensated) sensing based on your device orientation constraints.

How do I evaluate the impact of hard-iron and soft-iron interference on my board?

Prototype with the sensor placed at least 5mm away from high-current traces, batteries, and speakers. Conduct 360° rotation testing in a magnetically clean environment to measure ellipsoidal distortion. Look for sensors with built-in calibration routines or integrate software calibration (ellipsoid fitting) into your firmware. If interference is unavoidable, specify sensors with integrated magnetic shielding or consider remote sensor placement via flex cable.

What interface and power specifications are critical for battery-powered designs?

Prioritize I²C interface for multi-sensor bus sharing, ensuring address configurability to avoid conflicts. Verify supply voltage compatibility (typically 1.8V or 3.3V) and check average current consumption in your target ODR (Output Data Rate) mode—look for <100 µA at 10Hz for wearables. Confirm the sensor supports low-power sleep modes with fast wake-up times (<1 ms) to enable duty-cycling. For high-volume production, also verify availability in automotive-grade (-40°C to +85°C) or industrial temperature ranges if your application requires extended environmental specs.

Current - Output (Max):
Image Part Manufacturer Description Stock Action
AK09973D AKM
3D MAGNETIC SENSO...
6,060
In-stock
Inquiry
AK09915C AKM
SENSOR HALL I2C/S...
5,230
In-stock
Inquiry
EQ731L AKM
SENSOR HALL EFFE...
6,070
In-stock
Inquiry
AK09916C AKM
SENSOR HALL EFFE...
2,480
In-stock
Inquiry
AK09918C AKM
SENSOR HALL EFFE...
3,720
In-stock
Inquiry
AK09912C AKM
SENSOR HALL I2C/S...
6,120
In-stock
Inquiry
HW322-B-15-F AKM
SENSOR HALL EFFE...
3,840
In-stock
Inquiry
HW322-B-15-E AKM
SENSOR HALL EFFE...
3,560
In-stock
Inquiry
EQ733L AKM
SENSOR HALL EFFE...
1,330
In-stock
Inquiry
HW102A AKM
SENSOR HALL EFFE...
6,060
In-stock
Inquiry
HW101A AKM
SENSOR HALL EFFE...
1,740
In-stock
Inquiry
HW108A AKM
SENSOR HALL EFFE...
3,520
In-stock
Inquiry
HW105A AKM
SENSOR HALL EFFE...
4,390
In-stock
Inquiry
HW300B AKM
SENSOR HALL EFFE...
3,390
In-stock
Inquiry
HW300B-15-DF AKM
SENSOR LINEAR AN...
2,800
In-stock
Inquiry
HG106A AKM
SENSOR HALL EFFE...
7,190
In-stock
Inquiry
HG106C AKM
SENSOR HALL EFFE...
6,740
In-stock
Inquiry
HG166A AKM
SENSOR HALL EFFE...
6,640
In-stock
Inquiry
HG176A AKM
SENSOR HALL EFFE...
1,770
In-stock
Inquiry
HG186A AKM
SENSOR HALL EFFE...
1,930
In-stock
Inquiry