Inquiry of the product
Electronic parts department
TEL81-3-6362-8851 |
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MR Sensor
MRS-137A
Sample(s) can be ordered here.
Sample Price (Japanese yen) |
1p/lot
|
500p/lot
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1000p/lot
|
4,000 |
2,200 |
2,000 |
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This sensor is made from InSb magnetic resistance. That resistance value changes by the magnetic field and the permanent magnet which gives this sensor magnetic bias. When a magnetic substance approaches the detection side, an output signal can be received because the magnetic flux density which affects the magnetic resistance changes and the resistance value of this senser is changed. And, this is the model which hardly suffers the influence of the position precision of the carriage. |
Feature
A magnetic resistance element is an InSb mono-crystal. That sensitivity and the ratio of S/N are high.
It can be detected even if detected material doesn't stick to the detection side
Output doesn't depend on the movement speed of the magnetic body, and it can detect a stationary body.
A detection part is pure resistance, and hardly catches guidance noise.
Magnetic data can be detected in the wider range (width 9mm).
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Absolute Maximum Rating (Ta=25C) |
Item |
Symbol |
Standard Value |
Unit |
Excitation,Maximum |
Vamax |
5.5 |
V |
Withstand Voltage |
VI |
100 |
V |
Allowable Loss |
PD |
44 |
mW |
Operation Environmental Temperature |
Topg |
-30 ~ +85 |
℃ |
Preserved Environmental Temperature |
Tstg |
-30 ~ +85 |
℃ |
Electrical Property (Ta=25C) |
Item |
Symbol |
Condition |
min. |
Typ. |
Max. |
Unit |
Output voltage |
VOUT |
Va=5V *1 |
0.16 |
|
0.42 |
mVrms |
Resistance balance |
d |
I=1mA *2 |
|
|
30 |
% |
Input resistance |
R |
I=1mA |
800 |
- |
3500 |
Ω |
Voltage Noise |
VNW |
Va=5V |
|
|
50 |
μVP-P |
Piezo Noise |
VNP |
Va=5V押圧10g |
|
|
300 |
μVP-P |
Magnetic Flux Density |
B |
|
|
0.11
(S Pole)
|
|
T |
Detection Width |
W |
|
|
9 |
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mm |
*1 Input uses the magnetic flux which occurs when it is charged with current of 50Hz, 100mA(rms) in the line of φ 0.1mm.
*2 d =|MR1-MR2|/MR1(or MR2)*100
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# The product specifications and the appearance are possibility of changing without notice.

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