The PMT 221A is a 250 MHz, standard sized, 1:1 and 10:1 switchable passive probe designed for instruments having 1 MΩ input resistance. This probe is recommended for general purpose probing applications and is adjustable for low and high frequencies. The probe is rated with 300 V CAT II maximum input voltage and complies with latest safety standards. Like every PMK passive probe the PMT 221A features CeramCoreTM technology. The probe's entire core is made of a high quality
ceramic hybrid. Pure coaxial design and laser trimmed resistors ensure highest signal fidelity along the signal path offering high bandwidth and fast risetimes for accurate impulse measurements. All switchable probes offer unbreakable coaxial reed switches for changing between attenuation modes. Our passive probes are equipped with PMKs signature spring loaded, needle sharp tips to support precise and safe measurements minimizing the risk of slipping off the board and produce a short circuit. Various types of tips are available. Besides the spring contact tips there is also a solid tip
available at the users choice. Probe tips are interchangeable and can be replaced easily. Basic probe accessories and replacement tips are provided within the scope of delivery or can be purchased separately. The probes mechanical construction is modular and therefore spare probe leads are available. See this datasheet and corresponding documents for further details
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