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3810 Datasheet(PDF) 1 Page - IRC - a TT electronics Company. |
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3810 Datasheet(HTML) 1 Page - IRC - a TT electronics Company. |
1 / 2 page General Note IRC reserves the right to make changes in product specification without notice or liability. All information is subject to IRC’s own data and is considered accurate at time of going to print. A subsidiary of TT electronics plc • 4222 South Staples Street • Corpus Christi Texas 78411 USA Wire and Film Technologies Division Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com 3810 Series • Low Voltage • Hermetically sealed • Resistance range up to 100T ohms (10 14 ohms) • Designed for low current (pica ampere level) measurements • Leakage current minimised by hermetic sealing and guard ring Glass Envelope Glass to metal seal Solder coated leads Flexible connecting coil Ultra-High Value Precision Resistor Electrical Data IRC Type Resistance Range (ohms) Limiting Element Voltage (volts) TCR (20°C - 70°C) ppm/°C Resistance Tolerance (%) Values Operating Temperature Range (°C) Voltage Coefficient of Resistance (measured at voltages of 100 & 500 volts) ppm/volt 100M Ω 1T Ω 100T Ω 3810 100M to 1T 500 -500 to -3500 10, 20 EIA 2% values preferred -40 to 100 -20 -160 3811 100M to 1T 1000 1, 2, 5, 10 -10 -80 -150 3812 1T to 100M 1000 2, 5, 10 -10 -80 -150 CONSTRUCTION: The Cermetox resistive film is fired onto a high quality ceramic substrate; brass end caps are force fitted to the substrate which is then adjusted to value with a hellical cut in the film; the leads are mechanically locked into the end caps and the assembly sealed into the glass envelope. All close tolerance units utilize two resistors connected in series within the glass envelope. High value units, type 3812, are part filled with silicone oil. the guard band is described, with application notes, in a Product Information sheet, available on request. TERMINATIONS: Solder-coated dumet-wire. MARKING: Type reference, TCR code, resistance value and tolerance code are legend marked. Resistance value marking conforms to IEC 62. SOLVENT RESISTANCE: The glass envelope is coated with silicone and should not be subjected to solvents or their vapors. (See application notes.) PACKAGING: Each resistor is individually packed in a polythene envelope together with a card carrying measure- ment details and serial number. (See application notes.) Typical Load at Rated Voltage (1000 hrs at 20°C) ∆R% Shelf Life (12 months at room temperature) ∆R% Resistance To Solder Heat ∆R% Inductance Capacitance pF 1 0.5 <0.1 Low inductance versions available in the range 100M to 1T 3810 3811 0.4 0.2 Performance Data 3810 Series Issue July 2008 Sheet 1 of 2 |
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