| Allicdata Part #: | 4251-002-ND |
| Manufacturer Part#: |
4251-002 |
| Price: | $ 11.87 |
| Product Category: | Filters |
| Manufacturer: | Tusonix a Subsidiary of CTS Electronic Components |
| Short Description: | FILTER LC(PI) 0.012UF CHASSIS |
| More Detail: | LC (Pi) EMI Filter 3rd Order Low Pass 1 Channel C ... |
| DataSheet: |  4251-002 Datasheet/PDF |
| Quantity: | 1000 |
| 100 +: | $ 10.79120 |
Specifications
| Height: | -- |
| Series: | 4200 |
| Packaging: | Bulk |
| Part Status: | Active |
| Type: | Low Pass |
| Filter Order: | 3rd |
| Technology: | LC (Pi) |
| Number of Channels: | 1 |
| Center / Cutoff Frequency: | -- |
| Attenuation Value: | 65dB @ 100MHz |
| Resistance - Channel (Ohms): | -- |
| Current: | 10A |
| Values: | C = 0.012µF |
| ESD Protection: | No |
| Operating Temperature: | -55°C ~ 125°C |
| Applications: | Data Lines for Mobile Devices |
| Voltage - Rated: | 125V |
| Mounting Type: | Chassis Mount |
| Package / Case: | Axial, Bushing |
| Size / Dimension: | 0.187" Dia x 0.470" L (4.75mm x 11.94mm) |
Description
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EMI/RFI filters, both in LC and RC networks, are essential components in the ever-growing world of electronic systems and have a large number of practical applications. While the terrestrial radio frequency interference filter, or RFI, is used to attenuate or dampen any electrical noise from sources such as radios and televisions, the 4251-002 can be used to convert a signal from the radio frequency band to the audio frequency band. Furthermore, these filters can be found protecting sensitive components from mechanical and environmental disturbances in a variety of applications, from military and aerospace systems, to industrial and medical equipment.
The 4251-002 is an application specific EMI/RFI filter that operates within a frequency range of 400 kHz to 4 GHz. It is designed to offer a low insertion loss, meaning a minimal amount of signal attenuation is introduced, and a low return loss, referred to as the amount of reflected energy. It is built in a \'board level or surface mount configuration\' and is fairly small in size, measuring just 1.6 x 1.6 x 0.6 inches. The 4251-002 is capable of being used in various applications such as Wi-Fi, Bluetooth, ZigBee, satellite communications, and 3G/4G wireless networks.
The working principle of the 4251-002 is based on the electromagnetic, or radio frequency (RF), interference properties of a duplexer, also known as a diplexer. A diplexer is used to separate two components of a signal and is comprised of two filters; one for transmit and one for receive. The 4251-002 is designed with a transmit filter that blocks signals being transmitted from one device from interfering with the signal of the other, while the receive filter blocks noise from coming into the system. To ensure the signal outputting from the transmit filter is as clean as possible, an additional low pass filter is included in the transmit filter section to extend the stopband characteristics of the device.
Aside from the transmit/receive duplexer, the 4251-002 filter also features a return gain amplifier (RGA). The RGA, also known as a low noise amplifier (LNA), is used to reduce the noise generated by the transmitter and to improve the overall performance of the device. Additionally, the 4251-002 contains low noise shunts and ferrite beads to help suppress any EMI or RFI generated in the receive path. The combination of the duplexer, RGA, and low noise shunts helps the 4251-002 to efficiently work around the noise generated by other devices in its vicinity.
In conclusion, the 4251-002 EMI/RFI filter is a practical component that can offer many benefits in applications related to the military, aerospace, industrial, medical, and consumer electronics markets. This filter is constructed with several key features which enable it to filter out unwanted electromagnetic and radio frequency interference (EMI/RFI), and allow the clean signal to be conveyed without harms and interference.
The specific data is subject to PDF, and the above content is for reference
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