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