2904 RHOPOINT | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 2
Technical content
M MM MMICROMINIATURE ICROMINIATUREICROMINIATURE ICROMINIATUREICROMINIATURE R R R R REED EEDEED EEDEED R R R R RELAYS ELAYSELAYS ELAYSELAYS Ideally suited to the needs of Automated Test Equipment and RF requirements. The specification tables allow you to select the appropri- ate relay for your particular application. Slightly larger than the 2200 Series; these relays provide maximum versatility with options such as electrostatic and coaxial shielding. If your requirements differ, please consult your local representative or Coto’s Factory.
2900 S 2900 S2900 S 2900 S2900 SERIES ERIESERIES ERIESERIES F F F F FEATURES EATURESEATURES EATURESEATURES
u Very small (0.20 in 2), high reliability reed relays. u High Insulation Resistance - 10 12 Ω offered on some models. u High speed switching compared to electromechanical relays. u Hermetically sealed contacts for long life. u Epoxy coated steel shell provides magnetic shielding. u Optional Electrostatic Shield for reducing capacitive coupling. u Optional Coaxial Shield for 50 Ω impedance and switching of fast rise time digital pulses.
2900 Series/Microminiature Reed Relays
Dimensions in Inches (Millimeters) Bottom View
COTO TECHNOLOGY RHOPOINT COMPONENTS LTD Holland Rd, Hurst Green, Oxted, Surrey, RH8 9AX,ENGLAND Model Number 2904 2 2911 2 x 2920 2,3 Parameter s Test Conditions Units 1 For m A 1 For m C 1 For m A Hg Wet COI L RESISTANCE Nom. Coil Voltage VDC 5 12 5 12 5 12 Coil Resistance +/- 10%, 25° C Ω 370 1500 230 1500 75 250 CONTAC T RATING Switching Voltage Max DC/Peak AC Resist. Volts 200 150 500 Switching Current Max DC/Peak AC Resist. Amps 0.5 0.25 1.0 Carry Current Max DC/Peak AC Resist. Amps 1.5 1.0 2.0 Contact Rating Max DC/Peak AC Resist. Watts 10 3 50 Life Expectancy-Typical Signal Level 1.0V, 10mA x 106 Ops. 500 100 1000 Static Contact Dynamic Contact Resistance (max. init.) 0.5V, 50mA at 100 Hz, 1.5 msec Ω 0.200 0.200 0.100 RELAY SPECIFICATIONS Insulation Resistance (minimum) Between all Isolated Pins at 100V, 25°C, 40% RH Ω x 10 12 x 1011 x 1010 Capacitance - Typical Across Open Contacts Shield Floating Shield Guarding pF pF 1.0 0.3 2.0 1.0 1.4 0.2 Dielectric Strength (minimum) Between Contacts Contacts to Shield Contacts/Shield to Coil VDC/peak AC VDC/peak AC VDC/peak AC 350 350 1500 200 200 1500 1000 1000 1500 Operate Time - including bounce - Typical At Nominal Coil Voltage, 30 Hz Square Wave msec. 0.5 1.0 1.5 Release Time - Typical Zener-Diode Suppression 4 msec. 0.1 2.0 1.0 Notes: 1Consult factory for life expectancy at other switching loads. 2Model 2904, 2911 and 2920, pin #7 is tied to optional electrostatic shield, pins #6 & #7 are tied to optional coaxial shield. 3Model 2920 has Hg wet contacts - position sensitive, must be mounted within 30° of vertical plane. See schematic. 4Consist of 20V Zener-Diode and 1N4002 diode in series, connected in parallel with coil. Environmental Ratings Storage Temp: -35°C to +100°C; Operating Temp: -20°C to +85°C Solder Temp: 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 Top View: Dot stamped on top of relay refers to pin #1 location Grid = .1"x.1" (2.54mm x 2.54mm)