Small Format Omnidirectional Palmheld Dynamic Paging Microphone with Talk Switch

651

Overview

The Astatic 651 is a small-format squeeze-to-talk, dynamic microphone for critical communications applications. The 651 has a tailored frequency response providing clear transmission and maximum intelligibility of speech. The housing is built to withstand rough mechanical impact while the transducer resists atmospheric extremes. The 651 has a simple to operate DPDT long-life, trouble-free, leaf switch. It has a low-impedance output and is factory wired normally open. The 651 may be rewired in the field if a line shorting function is desired. The Astatic 651 is an excellent choice for any application requiring a small-format palmheld microphone for discrete or tight-mounting spaces such as life-safety systems or paging stations where small size is required. The 651 is also suited to most public address and general, multiple-use, commercial paging applications such as factories, airports, lobbies, restaurants, warehouses, etc.

Features

• For commercial public-address and paging applications as well as security, emergency and life safety

• Small size for inclusion into life-safety systems or other paging stations where small size is indicated

• Omnidirectional for forgiving pick-up of users that may not be committed to the mic

• Low impedance (600 ohms) for long cable runs and hum resistance

• Rugged polyester mic element resists effects of extreme temperature, moisture, acids, alkalines and solvents

• Durable large-gauge wire grille

• Molded plastic that is resistant to high impact

• Permanently-attached 6ft (1.8m), heavy-duty, 4-conductor coiled cord with stripped and tinned ends

• Conforms to RoHS

Specifications

• Operating Principle: Moving Coil Dynamic

• Polar Pattern: Omnidirectional

• Frequency Response: 500Hz - 8KHz

• Sensitivity: -49dBV (3.6mV) @ 1Pa

• Impedance: 600 ohms

• Cable: 6ft (1.8m) extended, four-conductor, two-conductor shielded, coiled

• Switch: DPDT momentary leaf

• Case: Impact-resistant plastic

• Dimensions: See spec sheet (pdf)

• Net Weight [Mass]: 4.9oz [139g]

• Packaged Weight [Mass]: 8.0oz [227g]

• RF Immunity: Meets or exceeds EN55103-2, E1, E2, E3 and E4.

• RoHS Compliant