Spec No.: JELF243B 0026L-01 P1/9 CHIP COILS (CHIP INDUCTORS) LQM21PNGR REFERENCE SPECIFICATION 1. Scope This reference specification applies to chip coils (chip inductors) LQM21PN GR series for general electronic equipment. 2. Part Numbering (Ex.) LQ M 21 P N 1R0 N G R 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 -55C to +125C Storage temperature range -55C to +125C Rated current Inductance *1 (A) DC Self-resonant Customer Murata resistance frequency Nominal Ambient Ambient Part number Part number Tolerance ( ) (MHz min.) value temperature temperature (%) *2 *2 ( H) 85C 125C LQM21PN1R0NGRD 1.0 N: 30 0.06625% 50 1.3 0.95 LQM21PN3R3MGRD 3.3 M: 20 0.15025% 30 1.0 0.75 LQM21PN3R3NGRD 3.3 N: 30 0.15025% 30 1.0 0.75 LQM21PN4R7MGRD 4.7 M: 20 0.2325% 30 0.8 0.6 LQM21PN4R7NGRD 4.7 N: 30 0.2325% 30 0.8 0.6 *1 When rated current is applied to the products, temperature rise caused by self-generated heat shall be limited to 40C max. *2 As shown in the diagram below, derating is applied to the rated current based on the operating temperature. 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 0026L-01 P2/9 5. Appearance and Dimensions Unit mass (typical value): 0.012 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