
5305 Spectrum Drive, Frederick, MD 21703-7362 TEL: 301-846-9222, 800-638-2048 Fax: 301-846-9116
web: www.weinschel.com email: sales@weinschel.com
96
4/30/02
Models 1457 & 1458
dc to 18.0/22.0 GHz
Medium Power Coaxial Terminations
50 Watts
Convection Cooled, 3.5mm & TNC Connectors
Features
o Compact Construction - Lowest size/power ratio.
o Rugged Construction - Quality connector with special
high temperature support bead.
o Ideal for Space & Airborne Applications
Specifications
NOMINAL IMPEDANCE: 50
FREQUENCY RANGE:
Model 1457: dc to 18.0 GHz
Model 1458: dc to 22.0 GHz
MAXIMUM SWR:
Frequency (GHz)
Model
SWR
dc - 18.0
1457
1.30
dc - 22.0
1458
1.30
POWER RATING:
50 watts average, 5 kilowatts peak
(1
sec pulse width; 0.5% duty cycle) with case temperature
held within 90°C maximum with appropriate conductive
heatsink.
TEMPERATURE RANGE: -55°C to 90°C case.
CALIBRATION: SWR Testing performed across the
frequency band. Test data is available at additional cost.
CONNECTOR: Model 1457: TNC connectors per MIL-
STD-348 interface dimensions - mates nondestructively
with MIL-C-39012 connector. Choice of male (-7) or female
connector (-6)
Model 1458: 3.5mm connectors - mate nondestructively
with SMA per MIL-C-39012, 2.92mm, and other 3.5mm
connectors. Choice of male (-2) or female connector (-1).
CONSTRUCTION: Aluminum alloy body, stainless steel
connector; gold plated beryllium copper contacts.
WEIGHT:
Model 85:
Net 64 g (2.2 oz) maximum
Model 86:
Net 56 g (1.9 oz) maximum
PHYSICAL DIMENSIONS:
Model 1457 (TNC):
Model 1458 (3.5mm)
NOTE: All dimensions are given in mm (inches) and
are maximum, unless otherwise specified.
Model #
DIM A
Connector Type
1458-1
9.9+0.5 (0.35+0.02)
3.5mm female
1458-2
13.4+0.5 (0.53+0.02)
3.5mm male
Model #
DIM A
Connector Type
1457-6 13.8+0.25 (0.546+0.01)
TNC female
1457-7 18.9+0.25 (0.744+0.01)
TNC male