DA38

DA38 has a micro gap cut to an accuracy of several tens of microns in width for rapid response against induced lightning and electrostatic discharges.
Allows performing the AC withstanding voltage test.
This series are ideal for protecting power supplies against surge voltage.

Features

•Small size. (φ3.8mm Length 10mm)

•Allows performing the AC withstanding voltage test.

•Quick response for surge voltage, and low limiting voltage.

•Small capacitance and excellent insulation resistance.

•Stable for repeated discharge test conditions and environmental fluctuation.

•Axial taping available.

•No polarity.

•No dark effect.

•DA38 Series combined with varistor can be used as surge-protecting elements in power supplies.

Dimensions

Characteristics

Part Number DC spark-over
voltage Vs
Insulation resistance
IR
Electrostatic
capacitance
1kHz-6V max.
Surge current
capacity
8/20μsec.
DA38-102M 1,000V(800~1,200) 100MΩmin. DC 500V 1pF max. 2,000A
DA38-152M 1,500V(1,200~1,800)
DA38-272M 2,700V(2,160~3,240)
DA38-302M 3,000V(2,400~3,600)
DA38-362M 3,600V(2,880~4,320)
DA38-452M 4,500V(3,600~5,400) DC 1000V 1,500A
DA38-622M 6,200V(4,960~7,440)
Part Number Surge life
test.
8/20μsec.
100A
AC
Withstanding
voltage
UL recognized CSA recognized EN approved
UL 1414
5)
UL 1449
6)
CSA C22.2
7)
EN60065
EN60950-1
8)
DA38-102M 300times - - ○ 3) - -
DA38-152M - - ○ 3) - -
DA38-272M AC1,000V-1min.
AC1,200V-3sec.
○ 1) ○ 3) ○ 3) -
DA38-302M AC1,500V-1min. ○ 1) ○ 3) ○ 3) ○ 4)
DA38-362M AC1,800V-3sec ○ 1) ○ 3) ○ 3) ○ 4)
DA38-452M AC2,000V-1min. ○ 2) - - -
DA38-622M 200times AC3,000V-1min. ○ 2) - - -
1): Approved if used together with a varistor (AC125V : V1mA≧270V 8 Joule Min at 2ms, AC250V : V1mA≧470V 8 Joule Min at 2ms), electrically connected in series by means such as twist and soldering, staking, welding etc.
2): Approved if used together with a varistor (V1mA≧470V, 8 Joule Min at 2ms), electrically connected in series by means such as twist and soldering, staking, welding etc.
3): Approved if used together with a varistor (AC125V : V1mA≧270V, D≧φ5mm, AC250V : V1mA≧470V, D≧φ5mm), electrically connected in series by means such as twist and soldering, staking, welding etc.
4): Approved if used together with a varistor (V1mA≧470V, D≧φ5mm), electrically connected in series by means such as twist and soldering, staking, welding etc.
5): UL Standard UL1414 File No.E89615
6): UL Standard UL1449 File No.E318314
7): CSA Standard C22.2 No1 File No. CA111411
8): TÜV Report No. J9950875
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