DSA

Features

  • This series is used extensively to protect against surges for low-voltage and low-current equipment used in telecommunications and sensors.
  • Excellent for protecting signal lines requiring low capacitance.
  • The DSA-A combined with a varistor or a cement resistor can be used to prevent surges in power supplies.
  • Allows performing AC withstanding voltage tests without removing the surge absorber (above 2400V).
  • The "MMCC" trademark is printed on the DSA-A series (except 402MA and 452MA) and are UL-recognized protectors when connected in series with an appropriate UL-recognized varistor or cement resistor (RGBS5 3, UL1449 File No.E318314 )

Dimensions

Characteristics

Shape Part Number DC Spark-Over
Voltage VS
Insulation Resistance
IR
Electrostatic
Capacitance
1kHz-6V
Surge Current
Capacity
8/20μs
A-Type DSA-301LA 300V (255 ~ 345) ≥ 100MΩ 100VDC 2pF max Lead wire
diameter
φ0.4mm
:1500A

Lead wire
diameter
φ0.5mm
:2000A
DSA-501MA 500V (400 ~ 600) 250VDC
DSA-701MA 700V (560 ~ 840)
DSA-102MA 1000V (800 ~ 1200) 500VDC
DSA-152MA 1500V (1200 ~ 1800)
DSA-242MA 2400V (1920 ~ 2880)
DSA-282MA 2800V (2240 ~ 3360)
DSA-302MA 3000V (2400 ~ 3600)
DSA-332MA 3300V (2640 ~ 3960)
DSA-362MA 3600V (2880 ~ 4320)
DSA-402MA 4000V (3200 ~ 4800)
DSA-452MA 4500V (3600 ~ 5400) 1000VDC
DSA-622MA 6200V (4960 ~ 7440)
DSA-752MA 7500V (6000 ~ 9000)
Shape Part Number Surge Life
Test.
8/20μs
100A
AC
Withstanding
Voltage
UL Recognized 6) CSA Approved
7) EN Approved
4)
UL1449
5)
UL497B
A-Type DSA-301LA 300times - ○1) - -
DSA-501MA - ○1) - -
DSA-701MA - ○1) - -
DSA-102MA - ○1) - - -
DSA-152MA - ○1) - - -
DSA-242MA 1000VAC-1min
1200VAC-3s
○1) - ○2) -
DSA-282MA 1000VAC-1min
1250VAC-3s
○1) - ○2) -
DSA-302MA 1500VAC-1min ○1) - ○2) ○3)
DSA-332MA 1800VAC-3s ○1) - ○2) ○3)
DSA-362MA ○1) - ○2) ○3)
DSA-402MA 2000VAC-1min ○1) - ○2) ○3)
DSA-452MA 2000VAC-1min ○1) - ○2) ○3)
DSA-622MA 3000VAC-3s - - ○2) ○3)
DSA-752MA 3600VAC-3s - - ○2) ○3)
1): Approved if used with a varistor (125VAC: RGBS5L-3K) or (125VAC: V1mA ≧ 270V, φ≧5mm; 250VAC: V1mA ≧ 470V, φ ≧ 5mm) connected in series (soldered, crimped, or welded).
2): Approved if used with a varistor (125VAC: V1mA ≧ 270V, D ≧ φ5mm, 250VAC: V1mA ≧ 470V, D ≧ φ5mm) connected in series (soldered, crimped, or welded).
3): Approved if used with a varistor (V1mA ≧ 470V, D ≧ φ5mm) connected in series (soldered, crimped, or welded).
4): UL Standard UL 1449 File No. E318314
5): UL Standard UL497B File No. E175280 DC spark-over voltage is described as breakdown voltage in the UL report.
6): CSA Standard C22.2 No.1 File No. CA111411
7): TÜV Report No. J9851289 (DSA-752MA), J9251508 (Others)

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

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