B82498B3471J EPCOS Inc, B82498B3471J Datasheet - Page 18

• Manufacturer Part Number: B82498B3471J
• Description: RF Inductors 470nH 100MHz 115mA 5%
• Manufacturer: EPCOS Inc

Specifications of B82498B3471J

• Dimensions: 1.2 mm W x 2.2 mm L x 1.4 mm H
• Test Frequency: 100 MHz
• Inductance: 470 nH
• Tolerance: 5 %
• Maximum Dc Current: 115 mA
• Maximum Dc Resistance: 2.4 Ohms
• Self Resonant Frequency: 660 MHz
• Q Minimum: 35
• Operating Temperature Range: - 55 C to + 125 C
• Termination Style: SMD/SMT
• Package / Case: 0805 (2012 metric)
• Inductance Tolerance: ± 5%
• Dc Resistance Max: 2.4ohm
• Dc Current Rating: 115mA
• Core Material: Ceramic
• Inductor Case Style: 0805
• No. Of Pins: 2
• Svhc: No SVHC (18-Jun-2010)
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Multilayer winding:
The winding pitch is equal to the wire diameter. The coil is wound with several layers. This leads to
parasitic capacitances between the layers in addition to the turn-to-turn capacitances. In compari-
son to all other types of winding, this type leads to the highest capacitances and thus the lowest
resonance frequencies.
Random winding:
The winding pitch is smaller than the wire diameter. The coil is wound in one direction only. This
method of winding a coil does not permit the final position of a turn to be predetermined exactly. The
cross section of this type of winding clearly shows a disorderly, “random” arrangement of the turns.
This leads to the parasitic capacitances being only minimally greater than those achieved by single-
layer winding, and the resonance frequencies are equal to those achieved by single-layer winding.
General Technical Information
1
1
1
1
19 18 17 16 15 14 13 12
19 18 17 16 15 14 13 12
2 3 5 6 8 10 11 13 14
2 3 5 6 8 10 11 13 14
2 3 4 5 6 7 8 9 10
2 3 4 5 6 7 8 9 10
4
4
7 9
7 9
12
12
11
11
16 18
16
15 17 19
15 17 19
14
18
26
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