Coaxial Limiters
2690 Series

OUTLINE 1
V 4.00
Features
n Broadband Frequency Ranges
n Environmentally Sealed
n Feedback Leveling
n Small Size
n Reduced VSWR

Description
M/A-COM’s standard limiter series 2690 is a line of com-
pletely passive solid state receiver protectors. They exhibit
octave and multi-octave performance using a unique con-
struction technique involving PIN diodes in broadband
microstrip circuits. Careful diode selection allows a variety
of device performance, trading off peak and average power
handling, spike leakage and recovery time. Typical
insertion loss and VSWR curves are shown below.

Electrical Specifications: TA = 25°C
OUTLINE 2
Part
Number
Frequency
Range
(GHz)
Insertion
Loss (dB)
VSWR Average
Power (W)
Peak
Power (W)
Recovery
Time (nS)
Leakage
Power
(mW)
Outline
Drawing
2690-1001 1.0 - 2.0 0.7 1.5:1 1.0 100 100 75 1
2690-1003 0.9 1.5:1 3.0 1000 1000 100 2
2690-1005 2.0 - 8.0 1.1 1.6:1 1.0 100 100 50 1
2690-1007 1.3 1.6:1 3.0 1000 1000 100 2
2690-1009 8.0 - 18.0 1.8 2.0:1 1.0 100 100 50 1
2690-1011 2.3 2.0:1 3.0 1000 1000 100 2
2690-1013 2.0 2.0:1 1.0 100 100 50 1
2690-1014 2.2 2.0:1 2.0 500 250 75 1
2690-1015 2.3 2.0:1 3.0 1000 1000 100 2
2.0 - 18.0
1. Insertion Loss and VSWR measured at 0 dBm input power.
2. Peak input power rated at 1 microsecond pulse width, 1% duty into 1.5:1 source VSWR and 1.15 load VSWR.
3. Spike leakage energy: 0.5 ergs max.
4. 1 dB compression: +7 dBm min.