ARA0000CE2

Magneto Resistive Elements
Magneto Resistive Elements
(MR Elements)
Type:
EZMP
Panasonic MR Sensor is a magnetic sensor in which
magneto resistive element is used with a magnet rotator /
scale, pre-magnetized at an accuracy pitch of 0.1 mm to
1.0 mm. With this combination, a highly accurate control
can be realized and can be used for various application.
Features
● Flat
sensing surface
(Precise and easy to assemble)
● Short turn around-time by standardized pitch and shape.
● High speed and accuracy control possible
● RoHS compliant
Recommended Applications
● Capstan motors (Rotation speed)
● Camera lens unit (Position)
● Printers (Printing timing)
● Counter (Number of rotations)
● Disc drive actuator (Position)
Explanation of Part Numbers
1
2
3
4
5
6
7
8
9
10
11
E
Z
M
P
D
3
0
0
N
0
1
Product Code
Magneto Resistive Elements
S
Function
Design No.
□□□
Single
D,H 90 ˚phase double
R,Z
180 ˚phase double
Design No.
MR Sensitivity
Shape
N
Biased
P
Non-biased
Non-biased
High sensitivity
Non-biased
Super high sensitivity
H
M
01
S8
SA
Construction
Bracket
Bias Magnet
Molded MR Coreblock
Sensing Element
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
01 May. 2015
Magneto Resistive Elements
Dimensions in mm (not to scale)
01 Bracket Assembly
• Available for both biased
type and non-biased type
Vcc GND
Vo1 Vo2
3
4
6
(3-2.0)
8
6
1.9
5.8
8.5
Sensing element
2
f2
5
(1.5)
2.2
3.9
(10.4)
12
17.6
Vcc GND
Vo1 Vo2
S8 Bracket Assembly
“S Petit Mold MR”
• Available for only
non-biased type
1.9
1.35
1.85 / S8
2.2 / SA
3.5
5.8
0.85
2-0.3
3.1
0.3
SA Bracket Assembly
“S Petit Mold MR”
• Available for only
biased type
2-R 0.7
5
(3-1.5)
1.7
0.6
1.7
3.05
4.4
4.5
2.8
7.1
1.0
(0.7)
(4.2)
Performance Specifications, Summary
Item
Characteristics
Resistance Value
1 kΩ (standard) ±30%
Sensing Range
1600 A/m to 16000 A/m
Pitch Density
Category Temperature Range
Applied Voltage
Resistance Change by Magnetic Force
0.1 mm min.
–30 °C to +70 °C
5 V (standard)
N: 3 % min. (at ±16000 A/m)
P: 2 % min. (at ±16000 A/m)
M: 6 % min. (at ±16000 A/m)
RB
= (50±0.6) %
RA + RB
Circuit Diagram
RA
RB
Resistance Pair-Matching
a
b
c
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
01 May. 2015
Magneto Resistive Elements
Packaging Methods
Part No.
Standard Quantity
Style
Mass (Weight) [g/pc.]
EZMP□□□□□01
3,600 pcs./Box
Tray
0.58
EZMP□□□□□SA
15,000 pcs./Box
Tray
0.12
EZMP□□□□□S8
15,000 pcs./Box
Tray
0.09
1. Detection of rotations
(1) Detection of position
EZM detects the magnetized spot on a rotator.
Rotator
w
Output signal
Application Examples
Magnetized
spot
S
N
EZM
0
90
180
270
360
N
S
N
N
S
S
Rotator
S
N
N
w
S
Magnet
S
N
S
N
S
N
(2) Detection of rotation angle
The circumference of a rotator has been
magnetized as shown in the figure on the right.
EZM detects a rotation angle by analyzing
wave forms.
(3) Detection of number of rotations.
Output signal
1 cycle
EZM
N S N S N S N S N S
Angle
Examples of Applications
● To
sense movement without contact
sense weak signals that a Hall Sensor can’t do
● Can sense more precisely accurately than a Hall Sensor
● To get more stabilized output voltage from ring head
● To substitute for optical sensor in dusty environment
● To sense at a higher speed than an optical sensor
● To sense at a higher speed or a higher accuracy than a stepping motor
● To
Safety Precautions
The following are precautions for individual products. Please also refer to the common precautions for MR Sensors in
this catalog.
1. Solder Magneto Resistive Elements (hereafter called the MR Elements) at their terminal tips at 260 °C or lower for
no more than 10 seconds.
2. Do not apply excessive shock, such as a drop impact, to the MR Elements' bodies or terminals.
3. Do not use any corrosive adhesives, such as those made of acid, alkali, or base, or any adhesives that apply
stress to the MR Elements.
4. Do not wash the MR Elements with organic solvents.
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
01 May. 2015
Magneto Resistive Elements
MR Elements Inquiry Work Sheet
Please fill out the following items and send with your request.
Your name
Please give your adress and phone number to our sales staff.
Sensing Item
1)Rotation speed 2)Rotation angle/direction 3)Linear speed
4)Linear position
5)Approach
8) Current
Application Set.
1)VCR
Projected Quantity
Projected Qty.
6)Flow
2)Camera
7)Direction
3)Motor
4)Water-flowmeter
5)Other
(
)
Monthly Rate
/M
,
Manufacturing Schedule
E.S.
, P.P
Engineering sample
Detecting (FINE) Pitch
Sample Required
µm or
EZM
, M.P.
Pilot production
Mass production
mm
pcs.
x
Additional Comments:
Questions:
If you couldn't use
MR elements,
What's alternative?
1)Hall Element/IC
2)Magnetic head
5)Optical sensor 6)Eddy current 7)Other
3)Coil
(
4)Coil pattern
)
We appreciate your input. Thank you.
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
01 May. 2015
Safety Precautions (Common precautions for MR Sensors)
• When using our products, no matter what sort of equipment they might be used for, be sure to make a written
agreement on the specifications with us in advance. The design and specifications in this catalog are subject
to change without prior notice.
• Do not use the products beyond the specifications described in this catalog.
• This catalog explains the quality and performance of the products as individual components. Before use, check
and evaluate its operations when installed in your products.
• Install the following systems for a failsafe design to ensure safety if these products are to be used in equipment
where a defect in these products may cause the loss of human life or other significant damage, such as damage to
vehicles (automobile, train, vessel), traffic lights, medical equipment, aerospace equipment, electric heating
appliances, combustion/gas equipment, rotating equipment, and disaster/crime prevention equipment.
✽ Systems equipped with a protection circuit and a protection device
✽ Systems equipped with a redundant circuit or other system to prevent an unsafe status in the event of a single fault
(1) Precautions for use
• These products are designed and manufactured for general and standard use in general electronic equipment
(e.g. AV equipment, home electric appliances, office equipment, information and communication equipment)
• These products are not intended for use in the following special conditions. Before using the products,
carefully check the effects on their quality and performance, and determine whether or not they can be used.
1. In liquid, such as water, oil, chemicals, or organic solvent
2. In direct sunlight, outdoors, or in severe dust condition
3. In salty air or air with a high concentration of corrosive gas, such as Cl2, H2S, NH3, SO2, or NO2
4. Electric Static Discharge (ESD) Environment
These components are sensitive to static electricity and can be damaged under static shock (ESD).
Please take measures to avoid any of these environments.
Smaller components are more sensitive to ESD environment.
5. Electromagnetic Environment
Avoid any environment where strong electromagnetic waves exist.
6. In an environment where these products cause dew condensation
7. Sealing or coating of these products or a printed circuit board on which these products are mounted, with
resin or other materials
• These products generate Joule heat when energized. Carefully position these products so that their heat will
not affect the other components.
• Carefully position these products so that their temperatures will not exceed the category temperature range due
to the effects of neighboring heat-generating components. Do not mount or place heat-generating components
or inflammables, such as vinyl-coated wires, near these products.
• Note that non-cleaning solder, halogen-based highly active flux, or water-soluble flux may deteriorate the
performance or reliability of the products.
• Carefully select a flux cleaning agent for use after soldering. An unsuitable agent may deteriorate the performance
or reliability. In particular, when using water or a water-soluble cleaning agent, be careful not to leave water
residues. Otherwise, the insulation performance may be deteriorated.
(2) Precautions for storage
The performance of these products, including the solderability, is guaranteed for a year from the date of arrival
at your company, provided that they remain packed as they were when delivered and stored at a temperature
of 5 °C to 35 °C and a relative humidity of 45 % to 85 %.
The performance of Chip MR is guaranteed for 3 months after our delivery, provided that they are stored at a
temperature of 5 °C to 35 °C and a relative humidity of 45 % to 85 %.
Even within the above guarantee periods, do not store these products in the following conditions. Otherwise,
their electrical performance and/or solderability may be deteriorated, and the packaging materials (e.g. taping
materials) may be deformed or deteriorated, resulting in mounting failures.
1. In salty air or in air with a high concentration of corrosive gas, such as Cl2, H2S, NH3, SO2, or NO2
2. In direct sunlight
<Package markings>
Package markings include the product number, quantity, and country of origin.
In principle, the country of origin should be indicated in English.
00 May. 2015
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