Spec No.: JELF243B 0036F-01 P1/8 CHIP COILS (CHIP INDUCTORS) LQM21PNGS REFERENCE SPECIFICATION 1. Scope This reference specification applies to chip coils (chip inductors) LQM21PN GS series for general electronic equipment. 2. Part Numbering (Ex.) LQ M 21 P N 2R2 M G S D Product ID Structure Dimension Application and Category Inductance Tolerance Dimension Other Packaging (L W) characteristic (T) D: taping *B: bulk *B: Bulk packing is also available. 3. Part Number and Rating Operating temperature range -40C to +85C Storage temperature range -40C to +85C Inductance DC Self-resonant Customer Murata Rated current Nominal resistance frequency Tolerance Part number Part number (mA) value ( ) (MHz min.) (%) (H) LQM21PN2R2MGSD 2.2 M: 20 0.18025% 40 950 LQM21PN4R7MGSD 4.7 M: 20 0.29025% 20 750 4. Testing Conditions Unless otherwise specified Temperature: ordinary temperature (15C to 35C) Humidity: ordinary humidity 25% to 85% (RH) In case of doubt Temperature: 20C2C Humidity: 60% to 70% (RH) Atmospheric pressure: 86 kPa to 106 kPa 5. Appearance and Dimensions Unit mass (typical value): 0.012 g 6. Marking No marking. MURATA MFG CO., LTD Spec No.: JELF243B 0036F-01 P2/8 7. Electrical Performance No. Item Specification Test method 7.1 Inductance Meet chapter 3 ratings. Measuring equipment: Keysight 4294A or the equivalent (1 mA) Measuring frequency: 1 MHz 7.2 DC resistance Meet chapter 3 ratings. 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 Meet chapter 3 ratings. Measuring equipment: Keysight 4294A or the equivalent frequency 7.4 Rated current Product temperature rise: 40C max. Apply the rated current from chapter 3. 8. Mechanical Performance No. Item Specification Test method 8.1 Shear test No significant mechanical damage or no Force application direction: sign of electrode peeling off shall be observed. Applying force: 10 N Holding time: 5 s1 s 8.2 Bending test 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 Oscillation frequency: 10 Hz to 2000 Hz to 10 Hz, for approx. mechanical damage. 20 min Total amplitude: total amplitude of 3.0 mm or acceleration 2 amplitude of 245 m/s , 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 The product shall be dropped so that it falls freely onto mechanical damage. 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: 150C10C/60 s to 90 s Solder temperature: 240C5C Immersion time: 3 s1 s MURATA MFG CO., LTD