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Large Diameter Solder-In High Temp EMI Filters

Large diameter solder-in, high temperature EMI Filters can withstand 300°C installation temperatures. These EMI filters are ideal for low to medium impedance circuits where large amounts of capacitance to ground can be tolerated.

Spectrum Control offers a variety of Solder-In EMI Filters, Press-In EMI Filters, and Threaded Spanner EMI Filters.

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Large Diameter Solder-In High Temp EMI Filter Features

  • .400” diameter mounting vs .128” diameter mounting
  • Increased capacitance values - up to 1.2µF
  • EMI filtering from 500KHz up to 10GHz
  • 15 amp current rating
  • Glass sealed one end provided protection from hostile environments and maintain hermeticity
  • Rugged monolithic discoidal capacitor construction
  • High-temperature construction withstands 300°C installation temperatures
  • Gold plated suited for gold bonding
  • EMI filter designed to be soldered into a package, bracket or bulkhead
  • Reverse seal available
  • Special lead length and end terminations available
  • Ideal for low to medium impedance circuits where large amounts of capacitance to ground can be tolerated (feedthrough "C" circuit)

Large Diameter Solder-In High Temp EMI Filter Applications

  • Microwave attenuators
  • Microwave oscillators
  • High impedance circuits where large capacitance values are not practical
  • Signal and data lines
  • DC power lines

Large Diameter Solder-In High Temp EMI Filter Specifications

Part Number Circuit AMP DC Voltage Min Cap (µf) Minimum Insertion Loss (dB)
500 KHz 1
MHz		 10
MHz		 100
MHz		 1
GHz		 10
GHz
SCI-9945-125H C 15 50 1.2 33 37 52 70 70 70
SCI-9945-504H C 15 100 .50 26 34 42 58 70 70
SCI-9945-754H C 15 100 .75 31 37 43 62 70 70
SCI-9945-105H C 15 100 1.0 31 40 48 64 70 70
SCI-9945-503HAC C 15 200* .050 7 15 34 42 70 70
SCI-9945-154HAC C 15 200* .15 17 24 38 50 70 70
SCI-9945-103H C 15 400 .010 - 4 20 34 50 60
SCI-9945-503H C 15 400 .050 7 15 34 44 70 70
*Rated 200VDC or 125VAC/400Hz