B78408A1902A3 EPCOS Inc, B78408A1902A3 Datasheet - Page 2

• Manufacturer Part Number: B78408A1902A3
• Manufacturer: EPCOS Inc

Specifications of B78408A1902A3

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Technical data
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Feature
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Marking
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Delivery mode and packing unit
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Circuit diagram and test arrangement
Insertion loss
Measurement instrument: Network analyzer
Impedance: 75 Ω
Values specified at 25 °C
Frequency (MHz)
Mainline loss Input/Output (dB)
Coupling Input/Coupled (dB)
Please read Cautions and warnings and
Important notes at the end of this document.
3
1
Transformers for information technology
20 dB directional coupler
Double-aperture transformer
Recommended frequency range:
5 MHz to 2000 MHz
Operating temperature: −40 °C to +85 °C
Weight: approx. 80 mg
RoHS-compatible
No marking on components
Minimum data on reel:
Manufacturer, ordering code,
quantity, date code
12-mm blister tape to IEC 60286-3,
wound on 330-mm ∅ reel
Packing unit: 2100 pcs./reel
FIN0273-B
6
5
4
2
5
19.7 ±0.4
Dimensional drawing
0.4 ±0.3
03/08
6
1
2 x 1.5 = 3
2 x 1.5 = 3
1.5
4.6 max.
1
5
2
Output
75 Ω
4
3
470
19.3 ±0.4
0.3 ±0.3
0.6 max.
Exemplary winding
construction
FIN0287-O
Pick-and-place area
FIN0335-V-E
1
3
1000
18.6 ±1.0
B78408A1902A003
0.5 ±0.3
6
5
4
Layout
recommendation
Dimensions in mm
DL 3.6, small
5.5 max.
2 max.
Coupled
Input
2000
17.9 ±1.8
0.2
1.5 ±0.7
FIN0274-J-E