81-87A-15 Series

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81-87A-15 Series

 

81-87A-15 Series, 851-869 MHz, Single-Junction Circulator and Isolators are designed to provide the specified isolation under continuous duty at maximum power. Their conservative, rugged design and construction have a record of excellent reliability and high performance established through over 20 years of service in critical systems.

Isolators

  • Provides rated isolation at rated continuous power
  • Standard isolator loads rated to protect against antenna system failure

Circulators

  • Available dual or single junction versions from 118-250 MHz, 300-530 MHz and 746-960 MHz
  • Small package outline
  • Up to 250 watts power handling
  • High isolation throughout bandwidth (no-tuning)
  • Low insertion loss
  • Low PIM Design
  • Wide operation temperature range
  • RoHS compliant
  • Various connector options available
  • Ideal for applications with minimal guard band between transmit and receive frequencies

 

Part Number 81-87A-15-00 81-87A-15-20 81-87A-15-50 81-87A-15-60 81-87A-15-100
RF Load # None 82-01-05 82-01-16 82-01-17 82-01-15
Continous RF Load Power None 5 W25 W 60 W 100 W
Dimensions, HxWxD
[inches(mm)]
5.63 x 3.15 x 1.84
(143 x 80 x 47)
6.66 x 3.15 x 1.84
(169 x 80- x 47)
10.41 x 3.15 x 1.84
(264 x 80 x 47)
11.59 x 3.15 x 1.84
(294 x 80 x 47)
11.59 x 3.94 x 2.90
(294 x 100 x 74)
Weight, lb. (kg) 1.32 (0.60) 1.50 (0.68) 1.97 (0.89) 2.60 (1.18) 3.33 (1.51)

 


 

Product Specifications 
Item No81-87A-15 Series
Item Name851-869 MHz, Single-Junction Circulator and Isolator
Frequency Range851-869 Mhz
Number of Junctions1
Junction TypeDistributed Parameter
Max Continuous Input Power150 W
Isolation Bandwidth2.5% of center frequency (dB)
Typical Insertion Loss0.25 dB
Insertion Loss0.3 dB
Peak Reverse Isolation> 30 dB
Min Reverse Isolation> 25 dB
Impedance Ω50
Min Return Loss - VSWR20 dB (1.22 : 1)
Temperature Range-30 to +60 °C
Connectors Input-Output-LoadN