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CATV Protector

CATV Protector 77ALR
63(W) X 70(H) X 69(D) mm

  • The CATV protector interactive type are applicable for any frequency band from VHF to CS.
  • The CATV Protector with Filter has a function to exclude harmful frequency bands below 30 MHz and 70 MHz, respectively. They consist of a small high-performance 2-electrode gas tube surge arrester and a ring-type ceramic condenser featuring virtually no wave leakage. They are used to protect televisions and video devices from abnormally high voltages due to induced lightning, power line interference, etc.
  • Nisshin welcomes orders on OEM basis.


  Standard Specifications
Model Frequency
Range
(MHz)		 Insertion
loss		 V.S.W.R. Type Impedance
(dB at MHz)
NP-77A 10~450
451~770		 < 0.5
< 0.6		 < 1.3 Interactive -
NP-77AF 10~450
451~770		 < 0.5
< 1.0		 < 1.5 Interactive -
NP-77ALR 10~450
451~770		 < 0.5
< 1.0		 < 1.5 Interactive -
NP-77ALR-BS 10~450
451~1350		 < 0.5
< 1.0		 < 1.5 Interactive
suitable for BS		 -
NP-77AR 10~450
451~770		 < 0.5
< 0.6		 < 1.3 Interactive -
NP-77H70AR 70~450
451~770		 < 0.5
< 1.0		 < 1.5 W/Filter 60 at 10
30 at 30
*NP-77H70AR3 70~90
91~450
451~770		 < 1.0
< 0.5
< 1.0		 < 1.6
< 1.5
< 1.6		 W/Filter 60 at 10
40 at 30
*NP-77H73AR3 70~90
91~450
451~770		 < 1.0
< 0.5
< 1.0		 < 1.6
< 1.5
< 1.6		 W/Filter 30 at 10~50
NP-77H75AR 70~90
91~450
451~770		 < 1.0
< 0.5
< 1.0		 < 1.6
< 1.5
< 1.6		 W/Filter 50 at 10~50
*NP-77H30AR 30~50
51~450
451~770		 < 1.0
< 0.5
< 1.0		 < 1.6
< 1.5
< 1.6		 W/Filter 45 at 10
14 at 20
NP-77H35AR 30~50
51~450
451~770		 < 1.0
< 0.5
< 1.0		 < 1.6
< 1.5
< 1.6		 W/Filter 50 at 10~20
*NP-77AR-CS 10~450
451~1335
1336~1770		 < 0.5
< 1.0
< 1.5		 < 1.5
< 1.7
< 1.8		 Interactive
suitable for CS		 -



  Standard Specifications of Distributor
Model Frequency
Range
(MHz)		 Distribution
loss		 V.S.W.R. Connection
loss between
terminals		 Use Impedance
(dB at MHz)
NP-77DH70AR 70~450
451~770		 4.5
5.5		 1.7
2.0		 > 13 For both
Interactive
& w/filter		 40 at 70
10~450
451~770		 4.5
5.5		 1.7
2.0		 -
NP-77HH70AR 70~450 4.0 1.5 > 16 w/filter 40 at 30
70~450 4.0 1.5 w/filter 40 at 30
*NP-77DH75ALR 70~450 5.0 1.8 > 16 For both
Interactive
& w/filter		 50 at 10~50
70~450 4.5 1.8 -
*NP-77DDAR 10~450 4.0 1.5 > 16 Interactive -
10~450 4.0 1.5 -



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