DIODE LIMITER SERIES LT
0.1-18 GHz
GENERAL INFORMATION
The LT ser ies high speed Diode Limiters (receiv
er protectors) are used
at the input of sensiti
v e receiv ers in order to protect them against acci
-
dental b urnout caused
b y high levels of CW or pulsed p
o wer. Most mod -
els are b uilt i n "air free" solid dielectr ic str iplin e, and can there
f ore handle
high values of high po wer.
GENERAL SPECIFICATIONS
Frequenc y Rang e: 0.1 to 18.0 GHz
RF Impedance: 50 Ohms
Environment: MIL-E-5400
Operating Temperature: 55 C to +85 C
Connector s: SMA
Notes:
1. See Figure 1 f or limited definition.
2. Limiters having higher peak and
a ver age po wer capacity can be supplied.
3. Peak po wer specified is
f or 10
s pulse width f or frequencies to 2 GHz and
1
s for frequencies above 2 GHz.
4. If a narr ow frequency bandwidth is required KDI/
T riangle can supply a unit
that is electr ically optimized f or that bandwidth. Mechanical dimensions will
remain the same as the standard unit, and the pr
ice will gener ally be lo wer.
Specify the frequency
r ange when orde
r ing a narrow bandwidth model and
a special pa
r t number will be assigned.
5. To insure full limiting the applied RF po wer should e xceed 100
w atts peak
or 30% of the maxim um peak po wer rating.
MECHANICAL OUTLINES
A B C D E F
Out- in in in in in in
line [mm] [mm] [mm] [mm] [mm] [mm]
1 3.00[76,2] 2.00[50,8] 2.600[66,04] 1.800[45,7] 0.50[12,7] 0.20[5,1]
2 0.80[20,3] 0.60[15,2] 0.400[10,2] 0.30[7,6] 0.40[10,2]
3 0.95[24,13] 0.75[19,1] 0.500[12,7] 0.50[12,7] 0.48[12,2]
4 0.80[20,3] 0.60[15,2] 0.400[10,2] 0.25[6,4] 0.40[10,2]
5 2.00[50,8] 1.38[35,0] 1.600[40,64] 1.175[29,85] 0.50[12,7] 0.20[5,1]
T
2
T
1
FLAT LEAKAGE
T
1
T
2
TURN-ON TIME
RECOVERY TIME
INPUT PULSE
SPIKE LEAKAGE
FIG. 1
C
A
SMA
FEMALE
TYP.
F
IN OUT
B D
0.10
[2,5]
0.093
[2,36] DIA. THRU
MOUNTING HOLES
E
0.38
[9,7]
TYP.
0.38
[9,7]
ELECTRICAL PERFORMANCE
Maximum Maximum Maximum Maximum Maximum Maximum Maximum
Frequency Maximum Insertion Peak Avg. Flat Spike Turn-on Recovery
Model No. Range,
GHz
VSWR Loss, dB Power, kW Power Watts Leakege, mW Leakage Ergs Time, nanosec Time, nanosec Outline
LT-35 0.1-0.2 1.20 0.5 5.0 20 50 0.10 5 150 1
LT-38 0.1-1.0 1.25 0.5 3.0 10 50 0.10 5 150 1
LT-42 0.2-0.5 1.20 0.5 6.0 20 50 0.10 5 150 1
LT-44 0.2-0.3 1.20 0.5 6.0 20 50 0.07 5 150 1
LT-47 0.5-1.0 1.30 0.5 2.0 20 50 0.10 5 150 3
LT-49 0.7-0.95 1.25 0.5 6.0 50 50 0.07 5 150 5
LT-52 0.95-1.25 1.25 0.5 6.0 50 50 0.07 5 150 5
LT-55 1.0-2.0 1.30 0.6 2.0 10 50 0.10 5 150 4
LT-59 1.02-1.10 1.20 0.5 6.0 50 50 0.05 5 150 5
LT-62 1.2-1.4 1.20 0.6 5.0 30 50 0.07 5 150 5
LT-68 2.0-4.0 1.40 0.7 0.80 10 50 0.10 6 30 2
LT-76 4.0-8.0 1.40 1.2 0.75 5.0 80 0.10 5 30 2
LT-82 5.4-5.9 1.40 1.00 0.80 20 50 0.05 4 30 2
LT-83 7.0-12.4 1.50 1.70 0.30 4.0 50 0.07 5 30 2
11-5-02
KEY: Inches[Millimeters] .XX .03 .XXX .010 [.X 0.8 .XX 0.25]
60 South Jefferson Road, Whippany, NJ 07981
Tel: 973-887-8100 Fax: 973-884-0445
email: sales@mcekdi-integrated.com
See us on the web @ www.mcekdi-integrated.com
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