By Steve Bush 17th August 2020
Streamline Avionics (formerly Elpac Capacitors) has a series of general purpose metallised polyester film capacitors for filtering, coupling or bypassing in high or low impedance circuits within ac or dc applications.
Called Z Series, they are available in three forms – axial oval wrap-and-fill, axial round wrap-and-fill and radial moulded box.
They can be used in “applications that require long term stability at a relatively low cost,” according to New Jersey-based New Yorker Electronics, which is stocking the parts. “The self-healing characteristics of the metallised dielectric provide a very high level of reliability.”
Voltage ratings span 50V to 600V, and the series has a temperature range of -55°C to +85°C a full rated voltage, de-rated linearly from +85°C to 50% at +125°C.”
Terminal to terminal, they withstand 150% of rated voltage for 60 seconds through a limited resistance of 100Ω/V. Terminal to case, they withstand 200% of rated voltage.
Dielectric absorption is 0.2 to 1% depending on configuration, voltage and temperature. Dc life is tested for 250hr at 140% rated voltage and +125°C. Temperature coefficeint is 960ppm/°C.
The New Yorker product page is here
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