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2911-12-321

P1-P2
DIMENSIONS
in Inches (Millimeters)
2900 Series Reed Relays
Ideally suited to the needs of Automated Test Equipment and RF requirements. e
specication 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 dier, 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 oered 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 Options
2
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 specied.
Vibration: 20 G’s to 2000 Hz; Shock: 50 G’s
COTO TECHNOLOGY, INC.For most recent data visit www.cotorelay.com
MODEL NUMBER
2904
2
2911
2
2920
2,3
Parameters Test Conditions Units 1 Form A 1 Form C 1Form A
Hg Wetted
COIL SPECS.
Nom. Coil Voltage VDC 5 12 5 12 5 12
Coil Resistance +/- 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
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 3 50
Life Expectancy-Typical
1
Signal Level 1.0V, 10mA x 10
6
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
RELAY SPECIFICATIONS
Insulation Resistance
(minimum)
Between all Isolated Pins
at 100V, 25°C, 40% RH
Ω
10
12
10
11
10
10
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
P1-P2

2911-12-321

Mfr. #:
Buy 2911-12-321
Manufacturer:
Coto Technology
Description:
Reed Relays Micromin FormC Reed
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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