SpecNo.JELF243A-0043P-01 P3/9
MURATA MFG.CO., LTD
Reference
Only
4. Testing Conditions
<Unless otherwise specified> <In case of doubt>
Temperature : Ordinary Temperature (15 to 35°C) Temperature
: 20 ± 2°C
Humidity
: Ordinary Humidity (25 to 85 %(RH)) Humidity : 60 to 70 %(RH)
Atmospheric Pressure : 86 to 106 kPa
5.Appearance and Dimensions (No marking)
(in mm)
■
Unit Mass (Typical value)
0.13g
6.Electrical Performance
No. Item Specification Test Method
6.1 Inductance
Inductance shall meet item 3. Measuring Equipment:
Agilent 4192A or equivalent
Measuring Frequency:
1MHz／1.0 to 390H
1kHz／470 to 1500H
6.2 Q Measuring Equipment:
Agilent 4192A or equivalent
Measuring Frequency:
1MHz / 1.0 to 82H
796kHz / 100 to 820H
252kHz / 1000 to 1500 H
6.3 DC Resistance DC Resistance shall meet item 3. Measuring Equipment:Digital multi meter
6.4 Self Resonant
Frequency
(S.R.F)
S.R.F shall meet item 3. Measuring Equipment:
Agilent 4991A or equivalent
6.5 Rated Current Self temperaturer rise shall be limited
to 20°C max.
Inductance Change : within ± 10%
The rated current is applied.
6.6 Temperature
Characteristics
Temperature Coefficient
150 to 1400 PPM/°C
Temperature coefficient on the basis of
step 3 shall meet specification after tested
as follows.It shall be subjected to the
condition of Table 1, and its inductanse
shall be measured at each step after
reaching the thermal equiligrium and be
calculated.
Table 1
Step1/+20±2°C Step4/+85±2°C
Step2/
-25±2°C Step5/+20±2°C
Step3/+20±2°C
3.2±0.2
4.5±0.3
1.0 min.
3.6±0.2
3.2±0.2
1.0 min. 1.0 min.
2.6±0.2
