Two electrode ceramic tube SPD for AC power supply or communication/signal/telephone line.

DC Breakdown Voltage 100V/s ~ 500V/s (V) ±20%
Low Voltage Type: 90 to 600
DC Breakdown Voltage 500V/s (V) ±20%
High Voltage Type: 800 to 4,500
Maximum Impulse Sparkover Voltage 100V/µs (V)
Low Voltage Type: 450 to 1,300
Minimum Insulation Resistance (MΩ)
Low Voltage Type: 10,000 (50VDC) to 10,000 (100VDC)
High Voltage Type: 10,000 (250VDC) to 10,000 (1,000VDC)
Maximum Capacitance 1MHz (pF)
Withstanding Voltage Test
High Voltage Type: 1,250VAC 3s - 1,500VAC 60s - 1,800VAC 3s - 2,000VAC 60s
Impulse Life Test 10/1,000µs (A)
Low Voltage Type: 100
Impulse Life Test 8/20µs (A)
High Voltage Type: 1,000
Alternating Discharge Current 50Hz, 1s 10 times (A)
Low Voltage Type: 10
Impulse Discharge Current 8/20µs (A)
Operating Temperature


  • Quick response for surge
  • High impulse current capacity
  • Able to withstand alternating current
  • Conforms to ITU-T


  • Telephone
  • PBX
  • Wireless base station
  • Optical transmission equipment
  • CATV transmission equipment
  • Fire alarm systems
  • Home security systems