3501-05-1-0 COTO | Alldatasheet
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Technical content
14 COTO TECHNOLOGY (USA) Tel: (401) 943-2686 / Fax (401) 942-0920 /c54 (Europe) T el: +31-45-5439343 / Fax +31-45-5427216 Low Thermal EMF Reed Relays The 3500 Series is ideally suited to the needs of Instrumentation, Data Acquisition and Process Control. The specification tables allow you to select the appropriate relay for your particular application. Recom- mended for use in high accuracy DVM’s, Multiplexers and Digital or Analog Multipoint Recorders. If your requirements differ from the selection options, please consult Coto’s Factory to discuss a custom reed relay.
3500 Series Features
/whwydiamond Low Thermal EMF: < 10 µV through < 0.5 µV with 50 nV stabilit y /whwydiamond Patented Low Thermal Design. U.S. Patent #4,084,142 /whwydiamond Low power coils to ensure low thermal EMF /whwydiamond High Insulation Resistance - 10 12 Ω /whwydiamond Control/Signal isolation of 1500 VDC /whwydiamond High reliability, hermetically sealed contacts /whwydiamond Form A, Dry or Hg Wet contacts. High Dielectric Strength /whwydiamond Epoxy coated steel shell provides magnetic shielding
3500 Series/Low Thermal EMF Reed Relays
Dimensions in Inches (Millimeters) (For Model #’s 3501 & 3540) (For Model #’s 3502, 3520, 3541) Bottom View
15For Most Recent Data, Consult the Coto T echnology Website: www.cotorelay.com /c54 E-mail: sales@cotorelay.com Notes: 1Consult factory for life expectancy at other switching loads. 2Models 3501 and 3540, optional electrostatic shield is tied to pin #5. Models 3502, 3520 and 3541, optional electro- static shield is tied to pin #13. 3Model 3520 has Hg wet contacts - position sensitive, must be mounted within 30° of vertical plane. See schematic. Hg Content per capsule: Form A, 0.04 grams. 4Consists of 56V Zener diode and 1N4148 diode in series, connected in parallel with coil. Environmental Ratings: Storage T emp: -35°C to +100°C; Operating T emp: -20°C to +85°C Solder T emp: 270°C max; 10 sec. max The operate and release voltage and the coil resistance are specified at 25°C. These values vary by approximately 0.4% / °C as the ambient temperature varies. Vibration: 20 G’s to 2000 Hz; Shock: 50 G’s T op View: Dot stamped on top of relay refers to pin #1 location Grid = .1"x.1" (2.54mm x 2.54mm)