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ASTMC373-66

更新时间： 2024-12-02 01:01:51

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ASTMC373-66 数据手册

Beryllium Oxide Ceramic

Beryllium oxide insulators have a high dielectric strength, which allows safe

operating voltages of 1500 volts or more. For applications involving high frequency

or high pulse rate circuitry, the inherent low electrical capacitance of these insulators

revents circuit detuning and loss of signal power. Beryllium oxide insulators have a

dielectric strength of approximately 22.8 x 103 volts/mm for .81mm material (580

volts/mil for .032" material), and 17.7 x 103 volts/mm for 1.57mm material (450

volts/mil for .062 material). The thermal conductivity of beryllium oxide is 221.94

-1

Wm °C^-1(128.2 Btu/hr.ft.°F).

Beryllium oxide is chemically inert and completely safe to use in its fired state.

Handling of finished parts presents absolutely no health hazards. Beryllium oxide,

however, is toxic when dust, mist or fumes containing particles small enough to

enter the lungs are inhaled. Therefore, grindings, sanding, and pulverizing the

material should be avoided.

For TO-3

"A" = 39.65 (1.561)

"B" = 26.67 (1.050)

"C" = 3.68 (.145)

"D" = 3.68 (.145)

Part No. 4003, Thickness .062 (1.57)

12 3

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