UU9.8 1mh Coils Choke Power Common Mode Inductor
The chip on the PC board is not only an electromagnetic
interference object, but also an electromagnetic interference
source in the working process. In general, we can divide these
electromagnetic interferences into two categories: series mode
interference (differential mode interference) and common mode
interference (ground interference). Taking the two PCB traces on
the motherboard (the wires connecting the components of the
motherboard) as an example, the so-called series-mode interference
refers to the interference between the two traces; while the
common-mode interference is the two traces and the PCB ground.
Interference caused by potential differences between lines. The
series mode interference current acts between the two signal lines,
and its conduction direction is consistent with the waveform and
signal current; the common mode interference current acts between
the signal line and the ground wire, and the interference current
flows through half of the two signal lines. One and the same
direction, and use the ground wire as the common circuit.
The common mode inductor is essentially a two-way filter: on the
one hand, it needs to filter out the common mode electromagnetic
interference on the signal line, and on the other hand, it must
suppress itself from emitting electromagnetic interference, so as
to avoid affecting the normal operation of other electronic devices
in the same electromagnetic environment.
Product performance:
1. Entirely wrapped in UL heat shrinkable sleeve.
2. Large inductance range.
3. Good stability.
| Model | Rated current(A) | Inductance (mH) min. | DC resistance(Q/line)max. |
| UU9.8 | 0.1 | 10 | 8 |
| 0.2 | 8 | 6 |
| 0.3 | 5 | 3 |
| 0.5 | 2 | 1 |
| 0.7 | 1 | 0.6 |
| 1 | 0.5 | 0.3 |
| 0.1 | 18 | 8 |
| 0.2 | 14 | 6 |
| 0.3 | 9 | 3 |
| 0.5 | 3.4 | 1 |
| 0.7 | 1.7 | 0.6 |
| 1 | 0.8 | 0.3 |
| UU10.5 | 0.3 | 10 | 3 |
| 0.3 | 5 | 2 |
| 0.5 | 5 | 1.5 |
| 0.7 | 4 | 1 |
| 1 | 3 | 0.5 |
| 1] | 2 | 0.5 |
| 1 | 1 | 0.4 |
| 1.3 | 1 | 0.3 |
| 1.5 | 1 | 0.2 |
| 2 | 0.6 | 0.15 |
| UU16 | 0.4 | 30 | 2.8 |
| 0.5 | 20 | 1.6 |
| 0.6 | 10 | 1.2 |
| 0.8 | 8 | 0.8 |
| 1 | 6 | 0.5 |
| 1] | 4 | 0.4 |
| 1.2 | 3.5 | 0.3 |
| 1.5 | 1.5 | 0.15 |
Performance
1. Working frequency: generally work under 20kHz-500KHz
2. Operating temperature: The temperature should be between -40℃ to
+125℃, otherwise it may affect the use of the inductor.
3. Storage temperature: storage temperature -25°C to +85°C to avoid
inductance aging
Characteristics
UU9.8 common mode inductor has the characteristics of small size,
convenient winding, low price and high reliability. It is often
used to deal with EMI.
Application
UU9.8 inductors are often used in common mode filter inductors,
drive transformers, current transformers, etc.
