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2900 Series Datasheet

Coto Technology

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Datasheet

DIMENSIONS
in Inches (Millimeters)
2900 Series Reed Relays
Ideally suited to the needs of Automated Test Equipment and RF requirements. The
specification tables allow you to select the appropriate relay for your particular applica-
tion. Slightly larger than the 2200 Series; these relays provide maximum versatility
with options such as a Form C with electrostatic or co-axial shielding. If your require-
ments differ, please consult your local representative or Coto’s Factory.
2900 Series Features
u
Very small (0.20 in
2
), high reliability reed relays
u
High Insulation Resistance - 10
12
Ω offered on 2904
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 50Ω impedance and switching of fast rise time
digital pulses
u
RoHS compliant (except for 2920)
2900 SERIES REED RELAYS
4
3
21
5
7
86
(2.54)
(7.11)
(17.78)
(12.7)
(20.82)
(0.56)
.022 Dia. pins
(0.51)
(3.18)
.100
(6.35)
.820
.500
.700
.125
.250
.020
.280
Ordering Information
Part Number 29XX-XX-XX1
Model Number
2904
2911
2920
Coil Voltage
05=5 volts
12=12 volts
Shielding Options2
0=No Shield
1=Electrostatic Shield
2=Co-axial Shield
Coil Options
1=Use for Model #2920 (5 & 12 volt coil)
3=Use for Model #2904 (12 volt coil) and for Model #2911 (5 & 12 volt coil)
4=Use for Model #2904 (5 volt coil)
Bottom View
tel: (401) 943.2686 | fax: (401) 942.0920
07082013
Notes:
1 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 wetted contacts - position sensitive, must be mounted within 30° of vertical plane. See schematic.
Hg Content per capsule: Form A, 0.04 grams.
Environmental Ratings:
Storage Temp: -35°C to +100°C; Operating Temp: -20°C to +85°C; Solder Temp: 270°C max; 10 sec. max
All electrical parameters measured at 25°C unless otherwise specified.
Vibration: 20 G’s to 2000 Hz; Shock: 50 G’s
COTO TECHNOLOGY, INC.For most recent data visit www.cotorelay.com
MODEL NUMBER 290422911229202,3
Parameters Test Conditions Units 1 Form A 1 Form C 1Form A
Hg Wetted
COIL SPECS.
Nom. Coil Voltage VDC 512 512 512
Coil Resistance +/- 10%, 25° C Ω370 1500 230 1500 75 250
Operate Voltage Must Operate by VDC - Max. 3.8 9.0 3.8 9.0 3.8 9.0
Release Voltage Must Release by VDC - Min. 0.4 1.0 0.4 1.0 0.4 1.0
CONTACT RATINGS
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 10 350
Life Expectancy-Typical1Signal Level 1.0V, 10mA x 106 Ops. 500 100 1000
Static Contact
Resistance (max. init.) 50mV, 10mA Ω0.100 0.150 0.075
Dynamic Contact
Resistance (max. init.)
0.5V, 50mA
at 100 Hz, 1.5 msec Ω0.200 0.200 0.100
RELAY SPECIFICATIONS
Insulation Resistance
(minimum)
Between all Isolated Pins
at 100V, 25°C, 40% RH Ω1012 1011 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 Coil
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 msec. 0.1 2.0 1.0
Top View:
Grid = .1”x.1” (2.54mm x 2.54mm)
1
2
3
45
6
7
8
UP
1
2
3
45
6
7
8
1
2
3
45
6
7
8
07082013

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