DSA

Features

•The Models of this series are extensively used as surge-protecting elements for electronic equipment in low-voltage and low-current circuits such as telecommunication equipment and sensor lines.

•Excellent for protecting signal lines that require low capacitance.

•The DSA-A-type combined with varistor or a cement resistor can be used as surge-protecting elements in power supplies.

•Allows performing the AC withstanding voltage test without removal of the surge absorber.

•DSA A-type series displaying the “MMCC”trademark (except 402MA,452MA)are UL-recognized protectors when connected to the appropriate varistor (UL recognized) or a cement resistor (RGBS5 3ΩK) in-series.
(UL1449 File No.E318314 )

*Some models are approved by CSA, TÜV.
Please contact us for details.

Dimensions

Characteristics

Shape Part Number DC spark-over
voltage Vs
Insulation resistance
IR
Electrostatic
capacitance
1kHz-6V max.
Surge current
capacity
8/20μsec.
A-Type *DSA-301LA 300V(255~345) 100MΩ min. DC100V 2pF max. Lead wire
diameter
φ0.4mm
:1500A

Lead wire
diameter
φ0.5mm
:2000A
*DSA-501MA 500V(400~600) DC250V
*DSA-701MA 700V(560~840)
*DSA-102MA 1,000V(800~1,200) DC500V
*DSA-152MA 1,500V(1,200~1,800)
*DSA-242MA 2,400V(1,920~2,880)
DSA-282MA 2,800V(2,240~3,360)
DSA-302MA 3,000V(2,400~3,600)
DSA-332MA 3,300V(2,640~3,960)
DSA-362MA 3,600V(2,880~4,320)
DSA-402MA 4,000V(3,200~4,800)
DSA-452MA 4,500V(3,600~5,400) DC1000V
DSA-622MA 6,200V(4,960~7,440)
DSA-752MA 7,500V(6,000~9,000)
S-Type DSA-301LS 300V(255~345) DC100V 1000A
DSA-501MS 500V(400~600) DC250V
DSA-701MS 700V(560~840)
DSA-102MS 1,000V(800~1,200) DC500V
Shape Part Number Surge life
test.
8/20μsec.
100A
AC
Withstanding
voltage
UL recognized CSA approved
8)
EN approved
9)
5)
UL1414
6)
UL1449
7)
UL497B
A-Type *DSA-301LA 300times - - ○2) - -
*DSA-501MA - - ○2) - -
*DSA-701MA - - ○2) - -
*DSA-102MA - - ○2) - - -
*DSA-152MA - - ○2) - - -
*DSA-242MA AC1,000V-1min.
AC1,200V-3sec.
○1) ○2) - ○3) -
DSA-282MA AC1,000V-1min.
AC1,250V-3sec.
○1) ○2) - ○3) -
DSA-302MA AC1,500V-1min. ○1) ○2) - ○3) ○4)
DSA-332MA AC1,800V-3sec. ○1) ○2) - ○3) ○4)
DSA-362MA ○1) ○2) - ○3) ○4)
DSA-402MA AC2,000V-1min. ○1) - - ○3) ○4)
DSA-452MA AC2,000V-1min. ○1) - - ○3) ○4)
DSA-622MA AC3,000V-3sec. ○1) - - ○3) ○4)
DSA-752MA AC3,600V-3sec. ○1) - - ○3) ○4)
S-Type DSA-301LS - - - - -
DSA-501MS - - - - -
DSA-701MS - - - - -
DSA-102MS - - - - - -
* U10T type can be provided
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 resistor (AC125V : RGBS5L-3ΩK) or 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.
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≧φ10mm), electrically connected in series by means such as twist and soldering, staking, welding etc.
5): UL Standard UL 1414 File No. E89615
6): UL Standard UL 1449 File No. E318314
7): UL Standard UL497B File No. E175280 DC spark-over voltage is described as break down voltage in the UL report.
8): CSA Standard C22.2 No.1 File No. CA111411
9): TÜV Report No. J9851289(DSA-752MA), J9251508(Others)