SPD for Coaxial Connection – F connection


  • Otowa High Frequency Surge Protective Device for coaxial cable are generally applicable for various signal lines. They are designed and tested to manage the transient overvoltages caused by lightning strikes on coaxial cables even sometimes connected directly to outside areas. The coaxial product lines cover the TV and CCTV systems and others with C2 and D1 impulse durability. They are avaiable with F connections.
  • JISクラスⅠ・Ⅱ
  • JISクラスⅠ・Ⅱ


・SPD Class (Category)C2, D1 lightning durability
・Superior high frequency performance
・Protect surges from aerial antenna of Digital TV, BS, CS broadcasting line
・EU RoHS Compliant with regulated substances




Type CS-FJJ75-T230HD
SPD Class (Category) C2 , D1
Connector type F
socket /socket
Bandwidth 0 - 3.3GHz
Impedance 75Ω
Insertion loss DC - 2.15GHz : ≤ 0.3 dB
2.15GHz - 2.6GHz : ≤0.4 dB
2.6GHz - 3.3GHz : ≤0.8 dB
Max. Continuous
operating voltage (Uc)
Voltage protection level
(8/20μs : Up)
≤ 650 V
C2 Nominal discharge current (8/20μs) 15kA
D1 Lightning impulse current (10/350μs) 2.5kA
Maximum allowable power 80W
Rated current 2A (40Vdc)
Overstressed fault Mode mode 2
Voltage Standing Wave Ratio (VSWR) 0 - 2.15GHz : ≤ 1.3
2.15GHz - 2.60GHz : ≤ 1.4
2.60GHz - 3.30GHz : ≤ 2.0
Shield earthing Directly
Operating temperature range (TU) -20 °C ~ +80 °C
Weight approx. 85g
Degree of protection
(if lines are connected)
IP 20
Location category Indoor
Test standards IEC 61643-21


Protects equipment from lightning surges that enter through coaxial cables (coaxial).
4K, 8K (~3224MHz), Digital Terrestrial (UHF), CS (110°), BS, Cable TV (CATV), VHF, FM, HF
and other TV receiving equipment (F-type connector)

Dimension drawing