2900 Series/ Microminiat ure Reed Relays
2904 2
2911 2
x 2920 2,3
Model Number
Parameters
Test Conditions
Units
1 Form A
1 Form C
1 Form A Hg
Wet
COIL RESISTANCE
Nom. Coil Voltage
Coil Resistance
VDC
5
12
1500
9.0
5
12
1500
9.0
5
12
250
9.0
1.0
+/- 10%, 25° C
Must Operate by
Must Release by
370
3.8
0.4
230
3.8
0.4
75
3.8
0.4
Ω
Operate Voltage
Release Voltage
VDC - Max.
VDC - Min.
1.0
1.0
CONTACT RATING
Switching Voltage
Switching Current
Carry Current
Max DC/Peak AC Resist.
Max DC/Peak AC Resist.
Max DC/Peak AC Resist.
Max DC/Peak AC Resist.
Volts
Amps
200
150
500
1.0
2.0
50
0.5
1.5
10
0.25
1.0
3
Amps
Contact Rating
Life Expectancy-Typical 1
Watts
x 106 Ops.
Signal Level 1.0V, 10mA
500
100
1000
Static Contact
Resistance (max. init.)
50mV, 10mA
0.100
0.200
0.150
0.200
0.075
0.100
Ω
Ω
Dynamic Contact
Resistance (max. init.)
0.5V, 50mA
at 100 Hz, 1.5 msec
RELAY SPECIFICATIONS
Insulation Resistance
(minimum)
Between all Isolated Pins
at 100V, 25°C, 40% RH
x 1012
x 1011
x 1010
Ω
pF
pF
Capacitance - Typical
Across Open Contacts
Shield Floating
Shield Guarding
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
0.1
1.0
2.0
1.5
1.0
Zener-Diode Suppression4
Release Time - Typical
msec.
Top View:
Dot stamped on top of relay refers to pin #1 location
Grid= .1"x.1" (2.54mmx2.54mm)
Environmenta l Ra tings
Note s:
-
+
Storage Temp: 35°C to 100°C;
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.
-
+
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
11
COTO TECHNOLOGY 55 Dupont Drive, Providence, RI 02907-3105 / (401) 943-2686 Fax (401) 942-0920
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