Spec No.: JELF243B 0048D-01 P1/8 CHIP COILS (CHIP INDUCTORS) LQM18PW CH REFERENCE SPECIFICATION 1. Scope This reference specification applies to chip coils (chip inductors) LQM18PW CH series for general electronic equipment. 2. Part Numbering (Ex.) LQ M 18 P W 1R0 M C H 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 Rated current Inductance *3 (A) DC Self-resonant resistance Customer Murata Based on Based on frequency Nominal (m) Part number Part number inductance temperature Tolerance (MHz min.) value *1 *2 change rise (%) ( H) Typ. Max. Typ. Max. Typ. Max. LQM18PW1R0MCHD 1.0 20 230 288 70 0.70 0.60 1.05 0.95 LQM18PW2R2MCHD 2.2 20 380 475 50 0.30 0.20 0.85 0.75 LQM18PW2R5NCHD 2.5 30 240 300 50 0.15 0.10 1.00 0.90 *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 40C max. *3 Keep the temperature (ambient temperature plus self-generation of heat) under 125C. 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 MURATA MFG CO., LTD Spec No.: JELF243B 0048D-01 P2/8 5. Appearance and Dimensions Unit mass (typical value): 0.004 g 6. Marking No marking. 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 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 MURATA MFG CO., LTD