Thursday, 03 December 2015 17:24

Coaxial RF Connectors

altEMP-Protectors CSP Series


The CSP-series consists of a number of surge protection devices for the protection of coaxial RF-cables.

CSP-series protection devices can be installed as feed-through components directly into a bulkhead such as the wall of a shielded room. This diverts surge currents on the outer conductor to the grounded shield. Overvoltage surges on the inner conductor are limited with respect to the outer conductor.

Depending on the application different protection technologies with varying protection levels are used. The transient residual let-through energy strongly depends on the protection technology and the temporal behaviour of the overvoltage surge. Therefore standardized pulse shapes and a load impedance matched to line impedance are used for specification.

GDT-technology (Gas Discharge Tube) has the advantage of broadband and extremely low insertion loss protection from DC (e.g. for remote powering of an external antenna)  up to several GHz. The protection levels are limited due to the large bandwidth and are mostly determined by the behaviour of the gas discharge tube.

Stubline technology, also called lambda/quater or quater wave technology, works like a bandpass  filter for a certain passband. Advantages are low attenuation in the passband and high surge current capability.

Highpass filter technology blocks low frequencies while having low insertion loss in the passband. This permits relatively low transient residual energies. Special versions additionally permit DC-feed-through for remote powering over the coaxial cable.

CSP-40101 Coax Protector, DC-1GHz, 150W, N-N

CSP-40101 protects a coaxial cable with N-connectors using gas discharge tube technology. Frequencies from DC to 1 GHz and RF power up to 150W pass almost unchanged, overvoltages are short-circuited to the outer conductor by a powerful gas tube arrester.  CSP-40101 datasheet

CSP-40102 Coax Protector, DC-1GHz, 150W, BNC-BNC

CSP-40102 protects a coaxial cable with BNC-connectors using gas discharge tube technology. Frequencies from DC to 1 GHz and RF power up to 150W pass almost unchanged, overvoltages are short-circuited to the outer conductor by a powerful gas tube arrester. CSP-40102 datasheet

CSP-43101 Coax Protector, DC-1GHz, 300W, N-N

CSP-43101 protects a coaxial cable with N-connectors using gas discharge tube technology. Frequencies from DC to 1 GHz and RF power up to 300W pass almost unchanged, overvoltages are short-circuited to the outer conductor by a powerful gas tube arrester. CSP-43101 datasheet

CSP-47101 Coax Protector, DC-1GHz, 700W, N-N

CSP-40101 protects a coaxial cable with N-connectors using gas discharge tube technol7gy. Frequencies from DC to 1 GHz an RF power up to 700W pass almost unchanged, overvoltages are short-circuited to the outer conductor by a powerful gas tube arrester. CSP-47101 datasheet

CSP-55101 Coax Protector, 806-2500 MHz, 500W, N-N

CSP-55101 protects a coaxial cable with N-connectors using high-pass filter technology. Frequencies from 806 to 2500 MHz and RF power up to 500W pass almost unchanged, DC and low frequencies are blocked. This also blocks most of the energy of transient overvoltages resulting in very good protection levels.  CSP-55101 datasheet

CSP-73101 Coax Protector, 2-6GHz, 300W, N-N

CSP-73101 protects a coaxial cable with N-connectors using stubline technology. Frequencies from 2000 MHz to 6000 MHz and RF power up to 300W pass almost unchanged, DC and low frequencies are blocked. This also blocks most of the energy of transient overvoltages resulting in very good protection levels. CSP-73101 datasheet

CSP-81101 Coax Protector, DC+650-2500 MHz, 50W, N-N

CSP-81101 protects a coaxial cable with N-connectors using hybrid gas discharge tube and filter technology. Frequencies from 650 MHz  to 2500 MHz and RF power up to 50W pass almost unchanged, additionally CSP-81101 passes DC voltages up to 15V and currents up to 3A. This permits use for remote powering, e.g. for an antenna amplifier. A typical application is an active GPS-antenna.   CSP-81101 datasheet

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