PSM4-252P-05T0

Series:	PSM
Packaging:	Tape & Reel (TR)
Part Status:	Discontinued at Digi-Key
Capacitance:	2500pF
Tolerance:	0%, +100%
Voltage - Rated:	200V
Current:	5A
DC Resistance (DCR) (Max):	0.5 mOhm
Operating Temperature:	-55°C ~ 125°C
Insertion Loss:	--
Temperature Coefficient:	--
Ratings:	--
Package / Case:	3-PSM
Size / Dimension:	0.315" L x 0.118" W (8.00mm x 3.00mm)
Height (Max):	0.118" (3.00mm)
Thread Size:	--

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Feed Through CapacitorsA feed through capacitor, such as the PSM4-252P-05T0, is a specialized filtering component that acts as a low-impedance barrier between AC and DC circuits. Its design focuses on providing an isolating impediment for a large range of radio frequency (RF) circuit paths from receiving or transmitting RF signals, while also attenuating local signals and system noise within the circuit. The capacitance value and size of these feed-through capacitor components determine their purpose and capability within any given system.The PSM4-252P-05T0 has a capacitance value of 0.5pF in a compact SMA package with a frequency range of DC to 18GHz, making it suitable for a vast array of applications, including: RF/Microwave Telecommunications, Aerospace/Military, Audio/Video, Test/Measurement Instrumentation, and Broadcast/Commercial Radio.The working principle of a feed through capacitor is based on the fact that reactive energy created by adding an electrical element with “outside of the circuit” capacities, such as the PSM4-252P-05T0, is stored within itself. This self-storage capacity takes the form of capacitance and it functions by storing an electric charge from one part of the circuit, while introducing a corresponding reactive energy to the other side of the circuit. The amount of capacitance and reactance generated by these components depends on the architecture and design of the device.One of the key features of the PSM4-252P-05T0 is its dual construction, which separates the device into two components – the center pin capacitor and the surrounding metal shield. The center pin capacitor of the PSM4-252P-05T0 offers a low-loss, high-impedance solution for the device, which allows for low-noise signal transmission. Also, the device’s Tin-Plated Copper alloy shell provides a three-fold shielding effect by blocking the contact with the center pin capacitor and shielding it from potential airborne noise.The working principle of the PSM4-252P-05T0 boils down to three primary functions: high isolation between each of its circuits, high attenuation of internal and external noise, and low insertion loss. The microstrip technology used in the device’s construction also ensures low parasitic inductance, making it useable up to 18 GHz.In essence, the PSM4-252P-05T0 is suitable for applications that require an effective combination of high RF power isolation and high-level RF signal attenuation. This combination makes the device ideal for applications such as: RF circuits in mobile phones, high-frequency audio/video components, system-level receiver filters for receivers and transmitters, and even military and aerospace-level receivers. Additionally, the device is also compatible with a wide range of digital video systems, and can be used to effectively attenuate any reactive noise coming in contact with digital data transmissions.Overall, the PSM4-252P-05T0 provides an effective implementation of the feed through capacitor technology, which makes it suitable for a wide range of applications that require attenuation of low level signal noise, and high frequency isolation. The device’s low-loss, high-impedance design, along with its dual construction, makes it a powerful tool for any system that relies on accurate signal transmission.

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