Reference Only Spec No. JELF243B-0004Q-01 P.1/8 CHIP COIL (CHIP INDUCTORS) LQM21DN00 REFERENCE SPECIFICATION 1. Scope This reference specification applies to LQM21DN series, Chip coil (Chip Inductors). 2. Part Numbering (ex) LQ M 21 D N 1R0 N 0 0 D Product ID Structure Dimension Applications Category Inductance Tolerance Features Electrode Packaging (LW) and D: Taping Characteristics (Paper tape) L: Taping (Plastic tape) *B: Bulk *B: Bulk packing also available 3. Rating Operating Temperature Range 40C to + 85C Storage Temperature Range 55C to +125C Self DC Rated Customer MURATA Inductance Resonant Resistance Current Part Number Part Number Frequency (H) Tolerance ( max.) (MHz min.) (mA) LQM21DN1R0N00D 1.0 0.10 75 60 LQM21DN2R2N00D 2.2 0.17 50 40 LQM21DN4R7N00D 4.7 0.30 35 30 30% LQM21DN100N00D 10 0.50 24 15 LQM21DN220N00L 22 0.65 16 13 LQM21DN470N00L 47 1.20 7.5 7 4. Appearance and Dimensions 0.50.3 Ferrite Electrode T 2.00.2 1.250.2 (in mm) Inductance: 1.0 H to 10 H 0.85mm0.2mm Dimension of T Inductance: 22 H to 47 H 1.25mm0.2mm Unit Mass Inductance: 1.0 H to 10 H 0.010g (Typical value) Inductance: 22 H to 47 H 0.016g 5. Testing Conditions Unless otherwise specified In case of doubt Temperature : Ordinary Temperature / 15C to 35C Temperature : 20C 2C Humidity : Ordinary Humidity / 25%(RH) to 85%(RH) Humidity : 60%(RH) to 70%(RH) Atmospheric Pressure : 86kPa to 106kPa MURATA MFG.CO., LTD Reference Only Spec No. JELF243B-0004Q-01 P.2/8 6. Electrical Performance No. Item Specification Test Method 6.1 Inductance Inductance shall meet item 3. Measuring Equipment: Agilent 4291A or equivalent (1mA) Measuring Frequency: 1MHz 6.2 DC Resistance DC Resistance shall meet item 3. Measuring Equipment: Digital multi meter Digital multi meter (TR6846 or equivalent) a terminal1 terminal2 SW b DC resistance shall be measured after putting chip coil between the terminal 2 under the condition of opening between a and b. Every measurement the terminal 1 shall be shorted between a and b when changing chip coil. 6.3 Self Resonant S.R.F shall meet item 3. Measuring Equipment: Frequency Agilent 4195A or equivalent (1mA) (S.R.F) 6.4 Rated Current Self temperature rise shall be The rated current is applied. limited to 20C max. Inductance Change: within 50% 7. Mechanical Performance No. Item Specification Test Method 7.1 Shear Test Chip coil shall not be damaged Applied Direction: Solder after tested as test method. Substrate Chip Coil Force: 10N Hold Duration: 5 s1 s 7.2 Bending Test Chip coil shall not be damaged Substrate: Glass-epoxy substrate after tested as test method. (100mm40mm 1.6mm) Pressure jig R340 F Deflection 45 45 Product (in mm) Speed of Applying Force: 1mm / s Deflection: 2mm Hold Duration: 30s 7.3 Vibration Chip coil shall not be damaged Oscillation Frequency: after tested as test method. 10Hz to 55Hz to 10Hz for 1 min Total Amplitude: 1.5mm Testing Time: A period of 2 h in each of 3 mutually Perpendicular directions. 7.4 Solderability The wetting area of the electrode Flux: Ethanol solution of rosin 25(wt)% shall be at least 90% covered (Immersed for 5s to 10s) with new solder coating. Solder: Sn-3.0Ag-0.5Cu Pre-Heating: 150C10C / 60s to 90s Solder Temperature: 240C5C Immersion Time: 3s1s 7.5 Resistance to Appearance: No damage Flux: Ethanol solution of rosin 25(wt)% Soldering Heat Inductance Change: within 20% (Immersed for 5s to 10s) Solder: Sn-3.0Ag-0.5Cu Pre-Heating: 150C10C / 60s to 90s Solder Temperature: 270C5C Immersion Time: 10s1s Then measured after exposure in the room condition for 24h2h. MURATA MFG.CO., LTD