2900 SERIES REED RELAYS

2900 SERIES REED RELAYS
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 application. 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 requirements 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 - 1012Ω 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)
DIMENSIONS
in Inches (Millimeters)
.250
(6.35)
.820
(20.82)
.280 (7.11)
.500
(12.7)
.125
(3.18)
.700
(17.78)
1 2
3 4
8 7
6 5
.020
(0.51)
.100
(2.54)
.022 Dia. pins
(0.56)
Bottom View
Ordering Information
Part Number
Model Number
2904
2911
2920
29XX-XX-XX1
Shielding Options2
0=No Shield
1=Electrostatic Shield
2=Co-axial Shield
Coil Voltage
05=5 volts
12=12 volts
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)
07082013
tel: (401) 943.2686
|
fax: (401) 942.0920
MODEL NUMBER
Parameters
Test Conditions
Units
29042
29112
29202,3
1 Form A
1 Form C
1Form A
Hg Wetted
COIL SPECS.
Nom. Coil Voltage
VDC
5 12
5 12
5 12
+/- 10%, 25° C
Ω
370 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
Max DC/Peak AC Resist.
Volts
200
150
500
Coil Resistance
CONTACT RATINGS
Switching Voltage
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
Max DC/Peak AC Resist.
Watts
10
3
50
Contact Rating
Signal Level 1.0V, 10mA
x 10 Ops.
500
100
1000
Static Contact
Resistance (max. init.)
50mV, 10mA
Ω
0.100
0.150
0.075
Dynamic Contact
Resistance (max. init.)
0.5V, 50mA
at 100 Hz, 1.5 msec
Ω
0.200
0.200
0.100
Insulation Resistance
(minimum)
Between all Isolated Pins
at 100V, 25°C, 40% RH
Ω
1012
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
msec.
0.1
2.0
1.0
Life Expectancy-Typical
1
6
RELAY SPECIFICATIONS
Release Time - Typical
Top View:
Grid = .1”x.1” (2.54mm x 2.54mm)
5
6
4
3
5
6
4
3
5
4
6
3
7
8
2
1
UP
7
8
2
1
7
8
2
1
Notes:
Consult factory for life expectancy at other switching loads.
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.
1
2
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
07082013
For most recent data visit www.cotorelay.com
COTO TECHNOLOGY, INC.