B82451N4754E002 Datasheet, PDF (4/6 Pages) EPCOS – Inductors

Transponder coils
Size 7.7 s 7.5 s 2.65 (mm)
B82451N
Technical data and measuring conditions
Rated inductance L_R
Q factor Q_min
Sensitivity S_typ
Resonance frequency f_res
DC resistance R_max
Solderability (lead-free)
Resistance to soldering heat
Climatic category
Storage conditions
Weight
Measured with Agilent 4294A at frequency f_L,
RMS voltage 500 mV, 20 °C
Measured with Agilent 4294A at frequency f_Q,
RMS voltage 500 mV, 20 °C
Measured with Helmholtz coil test setup at 125 kHz
Measuring with network analyzer Agilent 8753D, 20 °C
Measured at 20 °C
Sn95.5Ag3.8Cu0.7: (245 ±5) °C, 3 s
Wetting of soldering area ≥ 90%
(based on IEC 60068-2-58)
260 °C, 40 s (as referenced in JEDEC J-STD 020C)
40/125/56 (to IEC 60068-1)
Mounted: −40 °C … +125 °C
Packaged: –25 °C … +40 °C, ≤ 75% RH
Approx. 1.5 g
Characteristics and ordering codes
L_R
mH
4.75
L
f_L, f_Q
Q_min
S_typ
tolerance
mV
kHz
μT
±3%
125
50
16
R_max
Ω
42
f_res
kHz
>1.2
Ordering code
B82451N4754E002
Characteristics and ordering codes for other L values available on request.
Please read Cautions and warnings and
Important notes at the end of this document.
4 10/08