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) |
