1409 IET | Alldatasheet
Document overview
- Manufacturer or author: IET Labs
- PDF pages: 2
Technical content
Reference or Working Standard
1409 Series Page 1 of 2
Long Island, NY IET LABS, INC. in the GenRad Tradition www.ietlabs.com TEL: (516) 334-5959 EMAIL: info@ietlabs.com 1409 Data Sheet/Oct. 2015
- 0.001 μF to 1000 μF
- Excellent stability: ±100 ppm/year
- Two-to-fi ve terminal confi guration, depending on model The 1409 Standard Capacitors are fi xed value capacitors with very high stability for use as two, three, or fi ve-terminal laboratory reference standards. Typical capacitors, observed over more than 15 years, have shown random fl uctuations of less than ±0.01% in measured capacitance with no evidence of systematic drift. The capacitors of ≤1 μF consist of a silvered- mica and foil pile, spring-held in a heavy-duty metal clamping structure for mechanical stabil- 1409 1 μF Standard Capacitor Specifi cations Calibration and Test Conditions: Calibrated at 23°C, <50% RH, Traceable to SI 1 nF - 1 μF: Units are calibrated as both 2-terminal and as 3-terminal capacitors. For 2-terminal measurements, the LO terminal is shorted to the GND terminal. The Adjustments to Nominal specifi ed in the table above apply to 2-terminal measurements. 10 μF - 1000 μF: Units are calibrated as 5-terminal capacitors, "series model" Series Inductance: for 0.01 μF - 1 μF: typically < 0.06 μH Nominal value Model Initial Adjustment to nominal* Temperature coeffi cient (ppm/°C) Calibration frequency Dissipation (typical) Stability (per year) Max voltage Terminals Capacitor type Peak (V) Max Frequency 1 nF 1409-F ±0.02% 20 1 kHz 0.0003 ±100 ppm 500 10 kHz 2 bp's + gnd Silvered Mica mechanically stabilized hermetically sealed 10 nF 1409-L ±0.02% 20 1 kHz 0.0003 ±100 ppm 500 10 kHz 100 nF 1409-T ±0.02% 20 1 kHz 0.0003 ±100 ppm 500 10 kHz 1 µF 1409-Y ±0.02% 20 1 kHz 0.0002 ±100 ppm 500 10 kHz 10 µF 1409-10µF ±0.04% ±50 100 Hz 0.0005 ±200 ppm 22 Vrms† 1 kHz 4 bp's + gnd Metallized Polypropyl- ene Sulfi de (MPPS) hermetically sealed 100 µF 1409-100µF ±0.05% ±50 100 Hz 0.001 ±500 ppm 22 Vrms† 1 kHz 1,000 µF 1409-1000µF ±0.4% -150 100 Hz 0.001 ±500 ppm 22 Vrms† 1 kHz Custom 1409-X customer-selected value and power specifi cations † Maximum allowable Vrms; subject to maximum Vdc = 50 V and max Vrms = (39000/f) for C = 10 μF; (26000/f) for C = 19 μF; (13000/f) for C ≤100μF, where f = frequency (in Hz). * Initial Adjustment to nominal is only applicable when manufactured Series Resistance: for 0.01 μF - 0.1μF: 0.02 Ω for 1 μF: 0.03 Ω Frequency Characteristics: Varies as √f above 100 kHz. See fi gure 1. Leakage Resistance: 5,000 ohm-Farads or 100 GΩ, whichever is less Environment: Operating: +10 to +40°C, <80% RH Storage: -20 to +65°C ity. The units are selected for low dissipation fac- tor and are stabilized by heat cycling. They are housed in cast aluminum cases, along with sil- ica gel which provides continuous dessication. These cases are sealed with high-temperature wax. A well is provided in the wall of the case for insertion of a dial-type thermometer. Three jack-top binding posts are provided on the top of the case, and removable banana plugs on the bottom, for convenient parallel connection without error.
- 2-terminal and 3-terminal calibrations provided, where applicable
- Use to verify meter and instrumentation calibration
Reference or Working Standard
1409 Series Page 2 of 2
Long Island, NY IET LABS, INC. in the GenRad Tradition www.ietlabs.com TEL: (516) 334-5959 EMAIL: info@ietlabs.com 1409 Data Sheet/Oct. 2015 Figure 1 Change in capacitance as a function of frequency for typical 1409 Capacitors. The 1-kHz value on the plot should be used as a basis of reference in estimating frequency errors. Figure 2 Dissipation factor as a function of frequency.
1409 Mechanical Information:
1 nF - 100 nF 10.2 cm H x 8.3 cm W x 5.1 cm D 1 μF 14.3 cm H x 8.3 cm W x 6.9 cm D 10 μF - 100 μF 8.6 cm H x 10.5 cm W x 12.7 cm D 1,000 μF 31 cm W x 8.9 cm H x 10.2 cm D Various models of 1409 Standard Capacitors