Reference Only Spec No. JETE243A-0052-01 P 1/9 CHIP COILCHIP INDUCTORS DFE21CCNEL REFERENCE SPECIFICATION 1. Scope This reference specification applies to Chip Coil (Chip Inductor) DFE21CCN EL series for general electronic equipment. 2. Part Numbering (ex) DF E 21 CC N R47 M E L L Product Special Type Dimension Applications Category Inductance Tolerance Dimension Packaging ID specifications (LW) And (T) Characteristics 3. Part Number and Rating Operating temperature range (ambient temperature not including self-temperature rise) -40C to +125C Storage temperature range -40C to +125C Maximum voltage 20V *3 Rated current (mA) Inductance Customer Murata DC resistance *1 Based on *2 Based on Nominal Part number Part number ( max) Tolerance inductance change temperature rise value (%) ( H) DFE21CCNR24MELL 0.24 20 0.020 6500 5200 DFE21CCNR47MELL 0.47 20 0.029 4800 4100 DFE21CCN1R0MELL 1.0 20 0.060 3300 2700 DFE21CCN2R2MELL 2.2 20 0.138 2100 1800 *1The saturation allowable DC current value is specified when the decrease of the initial Inductance value at 30%. *2The rated current (Based on the temperature rise) is the current value that reaches 40C. *3Keep the temperature (ambient temperature plus self-generation of heat) under 125C. The rated current is the rated current based on inductance change and the rated current based on temperature rise, whichever is smaller one. 4. Testing Conditions < Unless otherwise specified > < In case of doubt > Temperature : ordinary temperature (15C to 35C) Temperature :20C 2C Humidity : ordinary humidity 25% to 85%(RH) Humidity :60% to 70%(RH) Atmospheric pressure :86kPa to 106kPa 5. Appearance and Dimensions Unit mass (typical value): 0.013 g 6. Marking No marking. MURATA MFG.CO., LTD Reference Only Spec No. JETE243A-0052-01 P 2/9 7. Electrical Performance No. No. Specification Item 7.1 Inductance Inductance shall meet item 3. Measuring EquipmentKEYSIGHT 4284A or equivalent Measurement signal level0.5V Measuring Frequency: 1MHz 7.2 DC Resistance DC Resistance shall meet item 3. Measuring EquipmentHIOKI 3541 or equivalent 7.3 Rated Current The saturation allowable DC current The rated current based on inductance change specified in (Inductance value is specified when the decrease Chapter 3 is applied. change) of the initial Inductance value at 30%. 7.4 Rated Current The temperature rise due to self- The rated current based on temperature rise specified in (temperature heating of the product is 40C or less. Chapter 3 is applied. rise) 7.5 Maximum 20V The voltage is applied in the impulse test. voltage 8. Mechanical Performance The product is soldered on a substrate for test.(Except Resistance to soldering heat, Solderability) It shall be soldered on the single Layer substrate (t=1.0mm). (Except Resistance to soldering heat, Solderability) (Test shall be done using Flux, Solder and Soldering condition which are specified in chapter 12 except the case of being specified special condition.) No. Item Specification Test method 8.1 Shear test No significant mechanical damage or Applying force:10N no sign of electrode peeling off shall Holding time:5s be observed. Force application direction: 8.2 Bending test No significant mechanical damage or Test substrate: glass-epoxy substrate no sign of electrode peeling off shall (100401.0mm) be observed. Pressurizing speed:0.08mm/s Pressure jig:R340 Amount of bending:2mm Holding time:20s 8.3 Vibration No significant mechanical damage or Oscillation frequency:10 Hz to 55 Hz to 10 Hz/1min. no sign of electrode peeling off shall Total amplitude: total amplitude of 1.5mm or acceleration 2 be observed. amplitude of 98m/s whichever is smaller Test time:3 directions perpendicular to each other, 2 h for each direction (6 h in total) 8.4 Solderability 90% or more of the outer electrode Flux:Ethanol solution of rosin,25(wt)% shall be covered with new solder Solder : Sn-3.0Ag-0.5Cu seamlessly. Pre-Heating:15010C / 60 to 90s Solder Temperature:2455C Immersion Time:30.5 s 8.5 Resistance to Appearance: No significant Flux: Ethanol solution of rosin,25(wt)% Soldering mechanical damage shall be Solder: Sn-3.0Ag-0.5Cu Heat observed. Pre-Heating: 150~180C / 60 to 120s Inductance change rate: within 10% Solder Temperature: 230C min / 30 to 90s Peak Temperature: 260+5/-0C Reflow times: 2 times max Post-treatment: left for 1 to 2 hours at room temperature. MURATA MFG.CO., LTD