■ Features
• Protects telephone line equipment (telephone, modem, facsimile etc.)
against surge
and over voltage
(UL1459, CSA-22.2 No. 225-M90).
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■ Part number system
DSSV |
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301 |
L |
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YD |
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Series |
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DC
Spark-over
voltage(Vs) |
DC
Spark-over
voltage tolerance |
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Shape |
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The
first two digits are significant,
and the third is number of zeros. |
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■ Dimensions
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■ Characteristics
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Series |
Part Number |
DC spark-over
voltage Vs |
Insulation resistance
IR |
Electrostatic
capacitance
1kHz-6V max. |
Surge current
capacity
8/20μsec. |
Surge life
test |
UL recognized |
UL 497A 3) |
DSSV |
DSSV-201M-YD |
200V (160~240) |
100MΩmin. |
DC
100V |
2pF
max |
400A |
FCC 1cycle 1) |
O |
DSSV-301L-YD |
300V (255~345) |
DOC 1cycle 2) |
DSSV-401M-YD |
400V (320~480) |
DC
250V |
O |
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| 1): |
FCC10/560μsec. 100A ±3times, 10/160μsec.
200A ±3times
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| 2): |
DOC 1cycle 10/1000μsec. 1KV-12times, 100/1000μsec.
1KV-12times respectively. |
| 3): |
UL Standard UL 497A File No. E131010(N) |
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■ Surge Response characteristics (Reference)
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■ Overvoltage cut off properties of DSSV type
Part number |
DSSV-301L-YD, DSSV-401M-YD
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Applied conditions |
AC 600V-40A-1.50sec. |
AC 600V-7A-5sec. |
AC 600V-2.2A-30min.
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Rate of ignition n=100 |
0 |
0 |
0 |
Overvoltage testing is
required in both UL60950
and CSA–C22.2 No.225–M90.
The DSSV
is effective in protecting
against these overvoltage
conditions by opening
the circuit.
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