D20419-80 Datasheet, PDF (325/386 Pages) ITT Industries – Military/Aerospace

EMP Suppression Connectors
PSP
Meet applicable portions of MIL-Specs.
ITT Cannon has developed a new connector concept
to satisfy the need to protect today's sophisticted
electronic circuitry from electromagnetic pulses
(EMP) generated by lightning, system transients,
nuclear blast, or static discharges.
Transient suppression, built into the ITT Cannon
PSP (Phoenix Surge Protector) connectors, is ac-
complished by the switching action of a silicon p-n
junction device mounted on the connector contact
which switches from a steady state standby condi-
tion into the avalanche condition. This device con-
ducts when the voltage surge reaches a value
sufficient to caues avalanche multiplication. The
transient is shunted through the silicon device to
the connecto housing. Response time of the tran-
sient absorbing suppressor clamping action is bet-
ter than 1 x 10 ⁹ seconds with a peak pulse power
dissipation of 500-1500 watts at 25˚C depending
on contact size.
Addition of the EMP suppression cifcuitry does not
require changes in the connnector diameter or in-
terface dimensions.
The PSP connector is offered in MIL-C-38999
Series I, II, III, and IV, Mil-C-81659 (ARINC 404)
and ARINC 600. All versions can be provided with
EMP or EMP/EMI combinations.
Standard Data
E
kV/m
50
40
30
EMP
20
E = 50 kV/m ts90% = 5 ns tf50% = 200 ns H = 133 A/m
HORIZONTAL POLARIZATION
10
VERTICAL POLARIZATION
E = 15 kV/m
0
0
50
100
150
t
200 ^ns
i
200kA
LIGHTNING
{ ^{PROBABILITY OF EXCEEDING}
CURRENT: 0.7%
CHARGE(i-t): 2%
i² -t:
1%
PROBABILITY OF MEETING OR
EXCEEDING ALL CHARACTERISTICS:
0.001%
100kA
7kA
1kA
400A
3.5kA
500kA
AB
C
D
E
2µs 100µs
5 ms
55 ms
FG
H
t
355 ms 355.1 ms 360 ms
355.002 ms
A
i-t (C)
0.2
i² ,t(10 ⁶ A ² S) 0.03
B
10.2
1.25
C
19.6
0.28
D
35
0.03
E
F
G
H
120 0.1 5
9.8
0.05 0.01 0.34 0.02
Diode Breakdown Voltage
Typical electrical vales for the two breakdown voltage extremes are as follows:
Min.
Breakdown
Voltage
(BR)
Max.
Test
Current
I_T
V _DC
V _DC
mA DC
6.4
7.3
10.0
189.0
209.0
1.0
Note: All values are based on an 8 x 20 µs (microsecond) wave form.
Rated
Stand Off
Voltage
V_WM
V
5.0
170.0
Max. Reverse
Leakage
Current
I_{D @}
V _WM
µA DC
600.0
1.0
Max. Peak
Reverse
Voltage
V_{C Max.}
@ ^IPP
V
9.6
275.0
Max. Peak
Pulse
Current
I_PP
A
52.0
1.8
Max. Temp.
Coefficient
of ^V (BR)
(TA) -55˚C
to 100˚C
%/˚C
.057
.108
Contacts
Diode contacts are available in 500, 1,000 and 1,500 watts with breakdown voltage (VBR) values of 6.8 to
200 voltage D.C. The contacts can be provided in a positive, negative, or bi-junction polarity as required by
operating line voltage.
Dimensions are shown in inches (millimeters).
Dimensions subject to change.
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