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Power Supply Which Requiries an AC Withstanding TestSURGE ABSORBERS

Resonance Countermeasures

Application:SW power supply, inverter power supply, power supply of office and home appliance

IEC62368-1 requires series usage of MOV ※ 1) and GDT ※ 2) for surge protection in the primary circuits of equipment.

※1) The MOV complies with the requirements of AnnexG.8.
※2) The GDT complies with :
*the electric strength test for BASIC INSULATION ; and
*the external Clearance and Creepage distance requirements for basic insulation.

Recommended parts

  AC125V AC250V
Common mode
(Between L1/L2 and GND)

AC withstanding voltage test
condition
AC1,000V-1min.
AC1,200V-3sec.
CDA70-272M+MOV1) (MOV)1)
DA53‐272M+MOV1) (MOV)1)
DE37‐272M+MOV1) (MOV)1)
CDA70‐272M+MOV2) (MOV)2)
DA53‐272M+MOV2) (MOV)2)
DE37‐272M+MOV2) (MOV)2)
AC1,500V-1min. CDA70-302M+MOV1) (MOV)1)
DA53‐302M+MOV1) (MOV)1)
DE37‐302M+MOV1) (MOV)1)
CDA70‐302M+MOV2) (MOV)2)
DA53‐302M+MOV2) (MOV)2)
DE37‐302M+MOV2) (MOV)2)
AC1,800V-3sec. CDA70-362M+MOV1) (MOV)1)
DA53‐362M+MOV1) (MOV)1)
DE37‐362M+MOV1) (MOV)1)
CDA70‐362M+MOV2) (MOV)2)
DA53‐362M+MOV2) (MOV)2)
DE37‐362M+MOV2) (MOV)2)
AC2,000V-1min. DE37‐452M+MOV1) (MOV)1) DE37‐452M+MOV2) (MOV)2)

MOV1) : Varistor voltage:More than 220V(UL recognized:More than 270V)
MOV2) : Varistor voltage:More than 470V
"+" : electrically connected series by gas discharge tube and MOV

Resonance Countermeasures