Type DF

Product Information

Type DF

Magnetic sensors capable of measuring minute magnetic changes even in strong static magnetic fields. Only AC signals are detected, eliminating static magnetic field signal components that are stronger than geomagnetism.
The sensor detects only alternating current signals by eliminating the strong magnetostatic signal component of geomagnetism. It can be used to detect minute magnetic fields without the use of a magnetic shield.

It can be used for metal detection near magnetic fields generated by MRI or magnetic metals.

*Preview item

Magnetic noise characteristic

Magnetic noise characteristic

Product Specifications

Model No. MI-CB-1DF
Power supply voltage +5V(Typ.)
Magnetic fluctuation detection range 160.0 μTpp(at +/-650 μT DC field)
Sensitivity 0.025V/μT
Frequency response 0.2 to 10kHz @ -3dB
Output linearity Less than 0.2%
Noise 300pT/√Hz@1Hz
Substrate size 43mm×11mm
Operating current single type 32mA @0µT, 42mA @650µT
multi type 20mA @0µT, 30mA @650µT


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Part No. Selection Guide

Please specify the product number.

Single Type Multi Type
PCB longitudinal direction
(B direction)
PCB transverse direction
(A direction)

Magnetic sensing direction and sensor element position

TypeDF single and multipin layouts

Here are examples of how to connect to a single-type MI-CB-1DF-S-A (B) and a multi-type MI-CB-1DF-M-A (B).

TypeDJ single and multipin layouts

Note when using multiple DF in parallel

Cautionary Statement

Notes on using more than one MI-CB-1DF

If several single-type nanotesla sensor MI-CB-1DF-S are used side by side, the respective sensors will interfere with each other, resulting in malfunction. Therefore, when two or more sensors are used together, select a MI-CB-1DF-M, which does not have an oscillator, and connect to a common oscillator MI-CB-1DF-OSC. When purchasing a multi-type MI-CB-1DF-M, an oscillator is supplied. (We also sell it.)

Connection example