521 Series SPDT Failsafe
SMA
C M A
Commercial
Military
Avionics
S
Space
RF Characteristics
Frequency
GHz
DC-4
4-8
8-12
12-18
*18-26.5
* “K” option only
VSWR
(max)
1.20
1.30
1.40
1.50
1.60
Isolation
dB (min)
70
65
60
60
55
Ins. Loss
dB (max)
0.20
0.30
0.40
0.50
0.70
521 Series SPDT
Failsafe, SMA
Specifications
Operating Voltage:
(across temperature range)
12 Vdc (11-14 Vdc)
28 Vdc (24-32 Vdc)
Coil Current (max @ nom.Vdc & 20°C):
12 Vdc 690 mA
28 Vdc 295 mA
Switching Time:
20 mS maximum
Operating Temperature:
-25ºC to +65ºC (Standard)
-55ºC to +85ºC (Extended “T” Option)
Mechanical Life, Cycles:
1,000,000 minimum
Vibration, Operating:
10 G RMS, 20-2000 Hz
Mechanical Shock, Non-Operating:
50 G, 1/2 Sine, 11 mS
Nominal Weight:
3 oz., (85g.)
Mechanical
521-2X0803 Shown
Part Number Selection
521
J
2
2
08
03
A
For Electrical Schematic
see page # 1-11
Special Options
Actuator
Coil Voltage
Connectors
Indicators/Terminations
Circuit Option
I
= Immersion Seal
J
= ‘D’ Connector
K
= 26.5 GHz
S
= Epoxy Seal
T
= -55ºC to +85ºC
2
= Failsafe, Position 1
6
= Failsafe, Position 1
Suppression Diodes
2
= 12 Vdc
3
= 28 Vdc
8
= 24 Vdc
9
= 15 Vdc
08
= SMA Female
02
= No Indicators, Unterminated Ports
A
= TTL High
03
= No Indicators, 2W Terminations
L
= TTL Low
05
= No Indicators, 5W Terminations
08
= No Indicators, 2W External Terminations
32
= Indicators, Unterminated Ports
33
= Indicators, 2W Terminations
35
= Indicators, 5W Terminations
38
= Indicators, 2W External Terminations
9
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