52-188-003-A

Current:	20A
Height:	1.261" (32.04mm)
Size / Dimension:	2.300" L x 1.000" W (58.42mm x 25.40mm
Package / Case:	Barrier Block, 3 Position
Mounting Type:	Chassis Mount
Voltage - Rated:	100V
Applications:	Data Lines for Mobile Devices
Operating Temperature:	-55°C ~ 125°C
ESD Protection:	No
Values:	C = 2500pF ~ 5200pF
Series:	--
Resistance - Channel (Ohms):	0.01
Attenuation Value:	--
Center / Cutoff Frequency:	--
Number of Channels:	3
Technology:	LC (Pi)
Filter Order:	3rd
Type:	Low Pass
Part Status:	Discontinued at Digi-Key
Packaging:	Bulk

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Introduction

The 52-188-003-A is an RF interference reducing device, otherwise known as an EMI/RFI filter. An EMI/RFI filter is a circuit that reduces electromagnetic interference and radio frequency interference from connected devices. EMI and RFI are two distinct phenomena, however, they often occur in tandem and hence are treated as the same in most filter applications.

Application Field and Working Principle

The 52-188-003-A is designed specifically for use as an EMI/RFI filter. It is used to provide a certain degree of shielding for analogue, digital and switched-mode power supplies. This ensures that electrical signals passing through these devices remain within the stated standards. The 52-188-003-A can be used in automotive and other electrical systems where electromagnetic disturbances can occur. The filter operates by providing paths to harmlessly dissipate EMI and RFI signals generated in radio transmissions. The 52-188-003-A utilizes both LC (Inductors and Capacitors) and RC (Resistors and Capacitors) networks to provide effective interference rejection. LC and RC networks are series and parallel combinations of chemical, ferrite, and inductive components, which are tuned to filter out electrical noise. When electromagnetic disturbance is present in an electrical system, these filters will automatically adjust their parameters to match the frequency of the disturbance. This is how they reduce the amount of interference passing through the electrical circuit. The 52-188-003-A also has built-in transient protection, which provides an additional level of protection against high-energy voltage or current spikes. If voltage transients occur, the filter’s circuitry will be able to detect and divert these energies in a safe manner. This will provide a critical safeguard against the risk of premature equipment failure due to unpredictable spikes or surges in power.

Conclusion

In conclusion, the 52-188-003-A is a specialized EMI/RFI filter, designed for automotive and other electrical applications where electromagnetic interference could present a problem. It uses LC and RC networks as well as built-in transient protection to ensure that incoming signals remain within accepted levels. By using such a filter, engineers can be sure that their electronics will remain safe even in the presence of high-energy electrical transients.

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