DA53

The DA53 has a micro-gap cut to an accuracy of several tens of microns for rapid response against induced lightning and electrostatic discharges.
Ideal for protecting power supplies from power-line surge voltage.

Features

•Small size. (φ5.3mm 10mm length)
•Capable of many types of AC withstand tests.
•Used to protect power supplies.
•Quick response for surge voltage and low limiting voltage.
•Small capacitance and excellent insulation resistance.
•Stable for repeated discharge test conditions and environmental fluctuation.
•No polarity.
•No dark effect.
•DA53 series surge absorber in series with a varistor used for surge protection in many types of power supplies.

Dimensions

Characteristics

Part Number DC spark-over
voltage Vs
Insulation resistance
IR
Electrostatic
capacitance
1kHz-6V max.
Surge current
capacity
8/20μsec.
DA53-501M 500V(400~600) 100MΩ min. DC 250V 1pF max. 3,000A
DA53-701M 700V(560~840)
DA53-272M 2,700V(2,160~3,240) DC 500V
DA53-302M 3,000V(2,400~3,600)
DA53-362M 3,600V(2.880~4,320)
DA53-622M 6,200V(4,960~7,440) DC 1,000V
DA53-752M 7,500V(6,000~9,000)
DA53-782M 7,800V(6,240~9,360)
Part Number Surge life
test.
8/20μsec.
100A
AC
Withstanding
voltage
UL recognized CSA recognized EN recognized
3)
UL1449
4)
LTI-002-2011
5)
EN62368-1
DA53-501M 300times - - - -
DA53-701M ○ 1) - -
DA53-272M AC1,000V-1min.
AC1,200V-3sec.
○ 1) ○ 1) -
DA53-302M AC1,500V-1min. ○ 1) ○ 1) ○ 2)
DA53-362M AC1,800V-3sec. ○ 1) ○ 1) ○ 2)
DA53-622M AC3,000V-3sec. - ○ 1) ○ 2)
DA53-752M AC3,600V-3sec. - ○ 1) ○ 2)
DA53-782M AC4,000V-1min. - - ○ 2)
1): Approved if used with a varistor (125VAC : V1mA ≧ 270V, φ≧ 5mm ; 250VAC : V1mA ≧ 470V, φ≧ 5mm) electrically connected in series.
2): Approved if used with a varistor (V1mA ≧ 470V, φ≧ 5mm) electrically connected in series.
3): UL Standard UL 1449 File No. E318314
4): CSA Standard LTI-002-2011 File No. CA111411
5): TÜV Report No. J9851289(DA53-752M,782M), J9850855(DA53-302M,362M,622M)
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