DA53

The DA53 is made using micro-gap technology to an accuracy of several tens of microns for accuracy and 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).
•Compliant with various AC withstanding voltage 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 tests and for many environmental fluctuations.
•No polarity.
•No dark effect.
•The DA53 series surge absorber combined in series with a varistor is 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 approved
4)
UL1449
5)
C22.2
No.1
6)
C22.2
No.60065
7)
EN60065
EN60950-1
DA53-501M 300times - - - - -
DA53-701M ○ 1) - - -
DA53-272M AC1,000V-1min.
AC1,200V-3sec.
○ 1) ○ 1) - -
DA53-302M AC1,500V-1min. ○ 1) ○ 1) - ○ 3)
DA53-362M AC1,800V-3sec. ○ 1) ○ 1) - ○ 3)
DA53-622M AC3,000V-3sec. - ○ 1) ○ 2) ○ 3)
DA53-752M AC3,600V-3sec. - ○ 1) ○ 2) ○ 3)
DA53-782M AC4,000V-1min. - - - ○ 3)
1): Approved if used with a varistor (125VAC : V1mA≧270V, φ≧5mm ; 250VAC : V1mA≧470V, φ≧5mm) electrically connected in series (soldered, crimped, or welded).
2): Approved if used with a varistor (125VAC : V1mA≧270V, φ≧14mm ; 250VAC : V1mA≧470V, φ≧14mm) electrically connected in series (soldered, crimped, or welded).
3): Approved if used with a varistor (V1mA≧470V, φ≧5mm) electrically connected in series (soldered, crimped, or welded).
4): UL Standard UL 1449 File No. E318314
5): CSA Standard C22.2 No.1 File No. CA111411
6): CSA Standard C22.2 No.60065 File No. CA111411
7): TÜV Report No. J9851289(DA53-752M,782M), J9850855(DA53-302M,362M,622M)
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