571-581 Series Normally Open, SMA
SMA
C M A
Commercial
Military
Avionics
S
Space
RF Characteristics
Frequency
GHz
DC-4
4-8
8-12.4
12.4-18
VSWR
(max)
1.20
1.30
1.40
1.50
Isolation
dB (min)
70
65
60
60
Ins. Loss
dB (max)
0.20
0.30
0.40
0.50
571-581 Series Normally
Open, SMA
Specifications
Operating Voltage:
(across temperature range)
12 Vdc (11-14 Vdc)
28 Vdc (24-32 Vdc)
Coil Current (Nominal):
12 Vdc 286 mA
28 Vdc 122 mA
Switching Time:
15 mS maximum
Operating Temperature:
-25ºC to +65ºC (Standard)
-55ºC to +85ºC (Extended “T” Option)
Mechanical Life, Cycles:
1,000,000 minimum
Nominal Weight:
5.0 oz., (142g.)
Mechanical
581-530822 Shown
Part Number Selection
571
J
5
2
08
02
A
For Electrical Schematic
see page # 3-9
Family
Special Options
Actuator
Coil Voltage
Connectors
Indicators
Circuit Option
571
= SP7T
581
= SP8T
C
= Mounting Bracket
J
= 9 OR 20* Pin
“D” connector
S
= Epoxy Seal
T
= -55º to +85º C
* 26-Pin 'O' Connector is 3 row high density
5
= Normally Open
2
= 12Vdc
3
= 28Vdc
8
= 24Vdc
9
= 15Vdc
08
= SMA Female
02
= No Indicators
22
= SPST Indicators
A
= TTL High
ISO 9001 Certified
3-5
www.dowkey.com
MP Normally Open Series Electrical Schematics
1
Normally Open
Terminals not Polarity Sensitive
2
Normally Open TTL
TTL Inputs
Optional Indicators
Optional Indicators
Logic Low (off) = 0 - 0.8Vdc
Logic High (on) = 2.4 - 5.5Vdc
3
N.O. Terminated
Terminals not Polarity Sensitive
4
N.O. Terminated TTL
TTL Inputs
Optional Indicators
Optional Indicators
Logic Low (off) = 0 - 0.8Vdc
Logic High (on) = 2.4 - 5.5Vdc
ALL SCHEMATICS SHOWN IN POSITION 1 ENERGIZED.
ISO 9001 Certified
3-9
www.dowkey.com
