TBFL1 - Transient Limiter

The TBFL1 is a combined transient limiter / attenuator / high pass filter, designed to provide optimum protection of spectrum analyzer or measurement receiver inputs when carrying out conducted noise measurements or other measurements where the input levels cannot be predicted with certainty or where accidental overloads may occur. 

Pin- and schottky diodes combined with a multi-stage 10dB attenuator result in a device which can withstand a continuous RF input level of up to 5W (37 dBm). A gas discharge tube provides additional protection against high voltage transients. Furthermore, a 9 kHz high pass filter suppresses harmonics of the mains supply voltage. 

With a limiting threshold of +11dBm and a flat frequency response from 9 kHz to 600 MHz, the TBFL1 limiter can be used as protective device for the complete range of conducted noise measurements and in many other applications.

SPECIFICATIONS

• Frequency range: 9 kHz – 600 MHz
• Attenuation: 10 dB – 0.8/+1.6 dB in-band (9 kHz to 600 MHz)
• Attenuation HP-filter: > 40 dB @ 1kHz
• Maximum continuous RF input power: 5W (+37 dBm) in-band
• Maximum DC input voltage: ± 20V
• Input matching, linear operating range: 9 kHz - 600 MHz < - 16 dB
• Output matching, linear operating range: 9 kHz - 600 MHz < - 23 dB
• Linear operating range: up to 0 dBm input level, in-band
• Limiting threshold: +11 dBm (@ 37dBm input level)
• Input connector: N-female
• Output connector: N-male
• Dimensions: 156 mm x 26 mm x 26mm
• Weight: 170 g

APPLICATION

• general purpose RF transient limiter
• transient limiter for conducted noise measurement set up

DOCUMENTATION

TBFL1 manual

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