Polystyrene and Foil Capacitors

Series 1906

Specifications | Typical Temperature Curves | Series 1906 Catalog Nomenclature
Series 1906 PDF Download
 
EFC Series 1906 are polystyrene and foil capacitors. This series offers the advantage of extremely high insulation resistance (IR), low dissipation factor and very low dielectric absorption. 1906 have a linear negative temperature coefficient. Applications include: timing circuits and filters. Packaging options include: wrap and fill (TC), axial lead box (EC). Application options: -120 PPM/°C temperature coefficient (T1906TC, T1906EC), -80 PPM/°C temperature coefficient (A1906TC, A1906EC).
 

Specification

 

    • Temperature Range
      -55°C to +85°C at rated voltage.
    • Capacitance
      Capacity shall be measured at 1 kHz ± 20 Hz. Measurements shall be taken at 25°C.
    • Dielectric Strength
      At 25°C, 200% of rated voltage when applied terminal to terminal for one minute through a current limiting resistance.
    • Insulation Resistance
      At 25°C after 2 minutes charge time at rated voltage or 500 VDC, whichever is less, the minimum IR shall be 500,000 Megohm-Microfarads, but need not exceed 1,000,000 Megohms.
    • Humidity Resistance
      Series 1906 shall meet the requirements of MIL-STD. 202C, Method 103B.
    • Dissipation Factor
      Shall be 0.1% max. when measured as in Par. 2.
    • Life Test
      Will withstand the application of 140% rated voltage at +85°C for 250 hours with not more than one failure in 12 permitted.

Typical Temperature Curves

Polystyrene and Foil


Series 1906 Catalog Nomenclature

* 1906 TC -03 -0.001 -01 -05

Available Application Options
A - Temperature Coefficient = -150 PPM / °C ± 30 PPM
T - Temperature Coefficient = -270 PPM / °C ± 30 PPM
Dielectric Code
1906 - Polystyrene/Foil
Case Code
TC - Wrap & Fill - Round - Axial
EC - Epoxy Case - Round - Axial
Size Code
3 - Standard
2 - Miniature
1 - Subminiature
X - Non-Standard
For EC cases use the two-letter diameter/length size code
Capacitance (mF)
See Dimensions and Ratings Tables
Voltage
0 - 050 VDC
1 - 100 VDC
2 - 200 VDC
4 - 400 VDC
6 - 600 VDC
Tolerance
1 - ± 1%
2 - ± 2%
5 - ± 5%
etc.


EFC will manufacture to any non-standard value and size. Please consult factory for special requirements.