1) Power supply requiring AC withstanding

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


IEC60950-1 Am.2 Ed.2.0(2013) permits series usage of VDR※1) and GDT※ 2) to bridge the basic insulation in the primary circuits of all IT equipment.


※1) The VDR complies with the requirements of AnnexQ.
※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
Normal mode(Between L1 and L2)
DSANR‐1
DSAZR1‐301L
DSANR‐3
DSAZR2‐501M
Common mode
(Between L1/L2 and GND)

AC withstanding voltage test condition)
Test is not required DSANR‐1, DSAZR1‐301L DSANR‐3, DSAZR2‐501M
AC1,000V-1min.
AC1,200V-3sec.
DSANR‐4, DSAZR1‐242M
CDA70-272M+Varistor1)
CDA70L-272M+Varistor1)
DA53‐272M+Varistor1)
DSA‐242M+Varistor1)
DE37‐272M+Varistor1)
DSAZR2‐242M
CDA70‐272M+Varistor2)
CDA70L-272M+Varistor2)
DA53‐272M+Varistor2)
DSA‐242M+Varistor2)
DE37‐272M+Varistor2)
AC1,500V-1min. DSANR‐5, DSAZR1‐302M
CDA70-302M+Varistor1)
CDA70L-302M+Varistor1)
DA53‐302M+Varistor1)
DSA‐302M+Varistor1)
DE37‐302M+Varistor1)
DSANR‐5, DSAZR2‐302M
CDA70‐302M+Varistor2)
CDA70L-302M+Varistor2)
DA53‐302M+Varistor2)
DSA‐302M+Varistor2)
DE37‐302M+Varistor2)
AC1,800V-3sec. DSANR‐6, DSAZR1‐362M
CDA70-362M+Varistor1)
CDA70L-362M+Varistor1)
DA53‐362M+Varistor1)
DSA‐362M+Varistor1)
DE37‐362M+Varistor1)
DSANR‐6A, DSAZR2‐362M
CDA70‐362M+Varistor2)
CDA70L-362M+Varistor2)
DA53‐362M+Varistor2)
DSA‐362M+Varistor2)
DE37‐362M+Varistor2)
AC2,000V-1min. DSANR‐10B, DSAZR1‐452M
DSA‐402M+Varistor1)
DE37‐452M+Varistor1)
DSANR‐10B, DSAZR2‐452M
DSA‐402M+Varistor2)
DE37‐452M+Varistor2)

Varistor1):Varistor voltage:More than 220V(UL recognized:More than 270V)
Varistor2): Varistor voltage:More than 470V
"+" : electrically connected series by gas discharge tube and varistor

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