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2900 Series/Microminiature Reed Relays om .c M REED R RELAYS R Ideally suited to the needs of Automated Test Equipment and RF 4U requirements. The specification tables allow you to select the appropriet e ate relay for your particular application. Slightly larger than the 2200 h Series; these relays provide maximum versatility with options such as S electrostatic and coaxial shielding. If your requirements differ, please ta consult your local representative or Coto's Factory. a .D w SERIES F FEATURES 2900 S w Very small (0.20 in ), high reliability reed relays. w High Insulation Resistance - 10 offered on some models.
ICROMINIATURE EED ELAYS ERIES EATURES
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High speed switching compared to electromechanical relays. Hermetically sealed contacts for long life. Epoxy coated steel shell provides magnetic shielding. Optional Electrostatic Shield for reducing capacitive coupling. Optional Coaxial Shield for 50 impedance and switching of fast rise time digital pulses.
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Dimensions in Inches (Millimeters)
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Catch Us on the Web! www.cotorelay.com
E-Mail us: sales@cotorelay.com
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2900 Series/Microminiature Reed Relays
Model Number Par ameter s
COIL RESISTANCE Nom. Coil Voltage Coil Resistance Operate Voltage Release Voltage CONTACT RATING Switching Voltage Switching Current Carry Current Contact Rating Life Expectancy-Typical 1 Static Contact Resistance (max. init.) Dynamic Contact Resistance (max. init.) RELAY SPECIFICATIONS Insulation Resistance (minimum) Capacitance - Typical Across Open Contacts Dielectric Strength (minimum) Operate Time - including bounce - Typical Release Time - Typical Between all Isolated Pins at 100V, 25C, 40% RH Shield Floating Shield Guarding Between Contacts Contacts to Shield Contacts/Shield to Coil At Nominal Coil Voltage, 30 Hz Square Wave Zener-Diode Suppression
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2904 2 Test Conditions Units 1 For m A
2911 2 1 For m C
x 2920 2,3 1 For m A Wet
5 75 3.8 0.4
Hg
VDC +/- 10%, 25 C Must Operate by Must Release by VDC - Max. VDC - Min.
5 370 3.8 0.4
12 1500 9.0 1.0
5 230 3.8 0.4
12 1500 9.0 1.0
12 250 9.0 1.0
Max DC/Peak AC Resist. Max DC/Peak AC Resist. Max DC/Peak AC Resist. Max DC/Peak AC Resist. Signal Level 1.0V, 10mA 50mV, 10mA 0.5V, 50mA at 100 Hz, 1.5 msec
Volts Amps Amps Watts x 106 Ops.
200 0.5 1.5 10 500 0.100 0.200
150 0.25 1.0 3 100 0.150 0.200
500 1.0 2.0 50 1000 0.075 0.100
pF pF VDC/peak AC VDC/peak AC VDC/peak AC msec. msec.
x 1012 1.0 0.3 350 350 1500 0.5 0.1
x 1011 2.0 1.0 200 200 1500 1.0 2.0
x 1010 1.4 0.2 1000 1000 1500 1.5 1.0
Top View: Dot stamped on top of relay refers to pin #1 location Grid = .1"x.1" (2.54mm x 2.54mm)
Notes:
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Environmental Ratings
Storage Temp: -35C to +100C; Operating Temp: -20C to +85C Solder Temp: 270C max; 10 sec. max The operate and release voltage and the coil resistance are specified at 25C. These values vary by approximately 0.4%/C as the ambient temperature varies. Vibration: 20 G's to 2000 Hz; Shock: 50 G's 11
Consult factory for life expectancy at other switching loads. 2 Model 2904, 2911 and 2920, pin #7 is tied to optional electrostatic shield, pins #6 & #7 are tied to optional coaxial shield. 3 Model 2920 has Hg wet contacts - position sensitive, must be mounted within 30 of vertical plane. See schematic. 4 Consist of 20V Zener-Diode and 1N4002 diode in series, connected in parallel with coil.
COTO TECHNOLOGY 55 Dupont Drive, Providence, RI 02907-3105 / (401) 943-2686 Fax (401) 942-0920

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