LQM2MPNR68MEHL

Spec No.: JELF243B_0049D-01 P1/9 CHIP COILS (CHIP INDUCTORS) LQM2MPN□□□□EH□ REFERENCE SPECIFICATION 1. Scope This reference specification applies to chip coils (chip inductors) LQM2MPN_EH series for general electronic equipment. 2. Part Numbering (Ex.) LQ M 2M P N Product ID Structure Dimension Application and (L × W) characteristic Category R24 M E H Inductance Tolerance Dimension Other (T) L Packaging L: taping *B: bulk *B: Bulk packing is also available. 3. Part Number and Rating Operating temperature range Storage temperature range -40°C to +85°C -40°C to +85°C Inductance Customer Part number Murata Part number Nominal Tolerance value (%) (μH) DC resistance (mΩ) Typ. Max. Self-resonant frequency (MHz min.) Rated current (A)*3 Based on inductance change*1 Based on temperature rise*2 Typ. Max. Typ. Max. LQM2MPNR24MEHL 0.24 ±20 35 44 130 4.5 4.1 3.3 2.6 LQM2MPNR47MEHL 0.47 ±20 50 63 80 2.5 2.3 2.8 2.15 LQM2MPNR68MEHL 0.68 ±20 75 94 60 2.2 2.0 2.3 1.75 LQM2MPN1R0MEHL 1.0 ±20 100 125 50 2.0 1.8 2.0 1.5 LQM2MPN1R5MEHL 1.5 ±20 90 113 40 0.9 0.75 2.1 1.6 LQM2MPN2R2MEHL 2.2 ±20 180 225 30 0.85 0.7 1.45 1.1 *1 When rated current is applied to the products, inductance will be within ±30% of initial inductance value range. *2 When rated current is applied to the products, temperature rise caused by self-generated heat shall be limited to 40°C max. *3 Keep the temperature (ambient temperature plus self-generation of heat) under 125°C. 4. Testing Conditions Unless otherwise specified Temperature: ordinary temperature (15°C to 35°C) Humidity: ordinary humidity [25% to 85% (RH)] In case of doubt Temperature: 20°C±2°C Humidity: 60% to 70% (RH) Atmospheric pressure: 86 kPa to 106 kPa MURATA MFG CO., LTD Spec No.: JELF243B_0049D-01 P2/9 5. Appearance and Dimensions Unit mass (typical value): 0.010 g 6. Marking No marking. 7. Electrical Performance No. Item 7.1 Inductance Specification Meet chapter 3 ratings. 7.2 DC resistance Meet chapter 3 ratings. Test method Measuring equipment: Keysight 4294A or the equivalent (1 mA) Measuring frequency: 1 MHz Measuring equipment: digital multimeter Measuring circuit: Measure with the product set to terminal 2 and the switch pressed (open between a and b). When setting or removing the product, press the switch to short between a and b. 7.3 Self-resonant frequency Meet chapter 3 ratings. Measuring equipment: Keysight 4294A or the equivalent 8. Mechanical Performance No. Item 8.1 Shear test Specification Test method No significant mechanical damage or no Force application direction: sign of electrode peeling off shall be observed. Applying force: 10 N Holding time: 5 s±1 s MURATA MFG CO., LTD Spec No.: JELF243B_0049D-01 No. Item 8.2 Bending test P3/9 Specification Test method No significant mechanical damage or no Test substrate: glass-epoxy substrate (100 mm × 40 mm × sign of electrode peeling off shall be 1.0 mm) observed. Pressurizing speed: 0.5 mm/s Deflection: 2 mm Holding time: 30 s Pressure jig R230 F Deflection 45 45 Product (in mm) 8.3 Vibration Appearance shall have no significant mechanical damage. Oscillation frequency: 10 Hz to 2000 Hz to 10 Hz, for approx. 20 min Total amplitude: total amplitude of 3.0 mm or acceleration amplitude of 245 m/s2, whichever is smaller Test time: 3 directions perpendicular to each other, 4 h for each direction (12 h in total) 8.4 Drop Appearance shall have no significant mechanical damage. The product shall be dropped so that it falls freely onto concrete or a steel board. Height: 1 m Number of falls: 10 times 8.5 Solderability 90% or more of the outer electrode shall Flux: immersed in ethanol solution with a rosin content of be covered with new solder seamlessly. 25(wt)% for 5 s to 10 s Solder: Sn-3.0Ag-0.5Cu solder Pre-heating: 150°C±10°C/60 s to 90 s Solder temperature: 240°C±5°C Immersion time: 3 s±1 s 8.6 Resistance to Appearance: No significant mechanical soldering heat damage shall be observed. Inductance change rate: within ±30% Flux: immersed in ethanol solution with a rosin content of 25(wt)% for 5 s to 10 s Solder: Sn-3.0Ag-0.5Cu solder Pre-heating: 150°C±10°C/60 s to 90 s Solder temperature: 270°C±5°C Immersion time: 10 s±1 s Post-treatment: left at a room temperature for 24 h±2 h 9. Environmental Performance The product is soldered on a substrate for test. No. Item Specification Test method 9.1 Heat resistance Appearance: No significant mechanical damage shall be observed. Inductance change rate: within ±30% Temperature: 85°C±2°C Test time: 1000 h (+48 h, -0 h) Post-treatment: left at a room temperature for 24 h±2 h 9.2 Cold resistance Appearance: No significant mechanical damage shall be observed. Inductance change rate: within ±30% Temperature: -40°C±2°C Test time: 1000 h (+48 h, -0 h) Post-treatment: left at a room temperature for 24 h±2 h 9.3 Humidity Appearance: No significant mechanical damage shall be observed. Inductance change rate: within ±30% Temperature: 40°C±2°C Humidity: 90% (RH) to 95% (RH) Test time: 1000 h (+48 h, -0 h) Post-treatment: left at a room temperature for 24 h±2 h 9.4 Temperature cycle Appearance: No significant mechanical damage shall be observed. Inductance change rate: within ±30% Single cycle conditions: Step 1: -40°C±2°C/30 min±3 min Step 2: ordinary temperature/10 min to 15 min Step 3: +85°C±2°C/30 min±3 min Step 4: ordinary temperature/10 min to 15 min Number of testing: 100 cycles Post-treatment: left at a room temperature for 24 h±2 h MURATA MFG CO., LTD Spec No.: JELF243B_0049D-01 P4/9 10. Specification of Packaging 10.1 Appearance and dimensions of tape (8 mm width/plastic tape) A 1.9±0.1 B 2.4±0.1 t 0.9±0.1 t' 0.25±0.05 (in mm) * The dimensions of the cavity are measured at its bottom. 10.2 Taping specifications Packing quantity (Standard quantity) 3000 pcs/reel Packing method The products are placed in embossed cavities of a plastic tape and sealed by a cover tape. Feed hole position The feed holes on the plastic tape are on the right side when the cover tape is pulled toward the user. Joint The plastic tape and the cover tape are seamless. Number of missing products Number of missing products within 0.025% of the number per reel or 1 pc., whichever is greater, and are not continuous. The specified quantity per reel is kept. 10.3 Break down force of tape Break down force of plastic tape 10 N min. Break down force of cover tape 5 N min. 10.4 Peeling off force of cover tape Speed of peeling off Peeling off force 165 to 180 degree 300 mm/min 0.1 N to 0.7 N (The lower limit is for typical value.) F Cover tape Plastic tape 10.5 Dimensions of leader section, trailer section and reel A vacant section is provided in the leader (start) section and trailer (end) section of the tape for the product. The leader section is further provided with an area consisting only of the cover tape (or top tape). (See the diagram below.) MURATA MFG CO., LTD Spec No.: JELF243B_0049D-01 P5/9 10.6 Marking for reel Customer part number, Murata part number, inspection number (*1), RoHS marking (*2), quantity, etc. *1 Expression of inspection No.: (1) Factory code  □□ ○○○○ (2) Date First digit: year/last digit of year (1) (2) (3) Second digit: month/Jan. to Sep.→1 to 9, Oct. to Dec.→O, N, D Third, Fourth digit: day (3) Serial No. *2 Expression of RoHS marking: (1) RoHS regulation conformity ROHSY () (2) Murata classification number (1) (2) 10.7 Marking on outer box (corrugated box) Customer name, purchasing order number, customer part number, Murata part number, RoHS marking (*2), quantity, etc. 10.8 Specification of outer box Label H D W 11. Dimensions of outer box (mm) W D H 186 186 93 Standard reel quantity in outer box (reel) 5 * Above outer box size is typical. It depends on a quantity of an order. Caution Restricted applications Please contact us before using our products for the applications listed below which require especially high reliability for the prevention of defects which might directly cause damage to the third party's life, body or property. (1) Aircraft equipment (2) Aerospace equipment (3) Undersea equipment (4) Power plant control equipment (5) Medical equipment (6) Transportation equipment (vehicles, trains, ships, etc.) (7) Traffic signal equipment (8) Disaster/crime prevention equipment (9) Data-processing equipment (10) Applications of similar complexity and/or reliability requirements to the applications listed in the above MURATA MFG CO., LTD Spec No.: JELF243B_0049D-01 P6/9 12. Precautions for Use This product is for use only with reflow soldering. It is designed to be mounted by soldering. If you want to use other mounting method, for example, using a conductive adhesive, please consult us beforehand. 12.1 Land dimensions The following diagram shows the recommended land dimensions for soldering: Ｃｈｉｐ ｃｏｉｌ Chip Ferrite Bead c d Pattern thickness and dimension d Applied current (A) a b c 18 μm 35 μm 70 μm 0 to 1.5 0.8 2.4 1.8 1.8 1.8 1.8 1.5 to 2.5 0.8 2.4 1.8 2.4 1.8 1.8 2.5 to 4.5 0.8 2.4 1.8 5.0 2.4 1.8 a b (in mm) Solder Resist Pattern 12.2 Flux and solder used Flux • Use a rosin-based flux. • Do not use a highly acidic flux with a halide content exceeding 0.2(wt)% (chlorine conversion value). • Do not use a water-soluble flux. Solder • Use Sn-3.0Ag-0.5Cu solder. • Standard thickness of solder paste: 100 μm to 150 μm If you want to use a flux other than the above, please consult our technical department. 12.3 Soldering conditions (reflow) • Pre-heating should be in such a way that the temperature difference between solder and product surface is limited to 150°C max. Cooling into solvent after soldering also should be in such a way that the temperature difference is limited to 100°C max. Insufficient pre-heating may cause cracks on the product, resulting in the deterioration of product quality. • Standard soldering profile and the limit soldering profile is as follows. The excessive limit soldering conditions may cause leaching of the electrode and/or resulting in the deterioration of product quality. Temp. (℃) 260℃ 245℃±3℃ 230℃ 220℃ Limit Profile 180 150 Standard Profile 30s～60s 60s max. 90s±30s Time. (s) Standard profile Limit profile Pre-heating 150°C to 180°C/90 s±30 s 150°C to 180°C/90 s±30 s Heating Above 220°C/30 s to 60 s Above 230°C/60 s max. 245°C±3°C 260°C/10 s 2 times 2 times Peak temperature Number of reflow cycles MURATA MFG CO., LTD Spec No.: JELF243B_0049D-01 P7/9 12.4 Reworking with soldering iron The following requirements must be met to rework a soldered product using a soldering iron. Item Requirement Pre-heating 150°C/approx. 1 min Tip temperature of soldering iron 350°C max. Power consumption of soldering iron 80 W max. Tip diameter of soldering iron ø3 mm max. Soldering time 3 s (+1 s, -0 s) Number of reworking operations 2 times max. * Avoid a direct contact of the tip of the soldering iron with the product. Such a direction contact may cause cracks in the ceramic body due to thermal shock. 12.5 Solder volume Solder shall be used not to be exceeded the upper limits as shown below. An increased solder volume increases mechanical stress on the product. Exceeding solder volume may cause the failure of mechanical or electrical performance. 12.6 Product's location The following shall be considered when designing and laying out PCBs. (1) PCB shall be designed so that products are not subject to mechanical stress due to warping the board. [Products direction] Products shall be located in the sideways direction (length: a < b) to the mechanical stress. a b 〈 Poor example〉 〈 Good example〉 (2) Components location on PCB separation It is effective to implement the following measures, to reduce stress in separating the board. It is best to implement all of the following three measures; however, implement as many measures as possible to reduce stress. Contents of measures Stress level (1) Turn the mounting direction of the component parallel to the board separation surface. A > D*1 (2) Add slits in the board separation part. A>B (3) Keep the mounting position of the component away from the board separation surface. A>C *1 A > D is valid when stress is added vertically to the perforation as with hand separation. If a cutting disc is used, stress will be diagonal to the PCB, therefore A > D is invalid. MURATA MFG CO., LTD Spec No.: JELF243B_0049D-01 P8/9 (3) Mounting components near screw holes When a component is mounted near a screw hole, it may be affected by the board deflection that occurs during the tightening of the screw. Mount the component in a position as far away from the screw holes as possible. 12.7 Handling of substrate After mounting products on a substrate, do not apply any stress to the product caused by bending or twisting to the substrate when cropping the substrate, inserting and removing a connector from the substrate or tightening screw to the substrate. Excessive mechanical stress may cause cracking in the product. Bending Twisting 12.8 Cleaning The product shall be cleaned under the following conditions. (1) The cleaning temperature shall be 60°C max. If isopropyl alcohol (IPA) is used, the cleaning temperature shall be 40°C max. (2) Perform ultrasonic cleaning under the following conditions. Exercise caution to prevent resonance phenomenon in mounted products and the PCB. Item Requirement Power Time 20 W/L max. 5 min max. Frequency 28 kHz to 40 kHz (3) Cleaner Alcohol-based cleaner: IPA Aqueous agent: PINE ALPHA ST-100S (4) There shall be no residual flux or residual cleaner. When using aqueous agent, rinse the product with deionized water adequately and completely dry it so that no cleaner is left. * For other cleaning, consult our technical department. 12.9 Storage and transportation Storage period Use the product within 6 months after delivery. If you do not use the product for more than 6 months, check solderability before using it. Storage conditions • The products shall be stored in a room not subject to rapid changes in temperature and humidity. The recommended temperature range is -10°C to +40°C. The recommended relative humidity range is 15% to 85%. Keeping the product in corrosive gases, such as sulfur, chlorine gas or acid may cause the poor solderability. • Do not place the products directly on the floor; they should be placed on a palette so that they are not affected by humidity or dust. • Avoid keeping the products in a place exposed to direct sunlight, heat or vibration. • Avoid storing the product by itself bare (i.e. exposed directly to air). Transportation Excessive vibration and impact reduces the reliability of the products. Exercise caution when handling the products. 12.10 Resin coating The inductance value may change and/or it may affect on the product's performance due to high cure-stress of resin to be used for coating/molding products. So please pay your careful attention when you select resin. In prior to use, please make the reliability evaluation with the product mounted in your application set. MURATA MFG CO., LTD Spec No.: JELF243B_0049D-01 P9/9 12.11 Handling of product Inductance could change due to the effect of magnetism. Do not use magnetized tweezers, magnets, or other similar tools when handling the product (instead, use tweezers with resin or ceramic tips). 12.12 Magnetic saturation A current exceeding the rated current could cause the inductance value to drop due to magnetic saturation. 13. Note (1) Please make sure that your product has been evaluated in view of your specifications with our product being mounted to your product. (2) You are requested not to use our product deviating from the reference specifications. (3) The contents of this reference specification are subject to change without advance notice. Please approve our product specifications or transact the approval sheet for product specifications before ordering. MURATA MFG CO., LTD