CSA 70 Series is a chip type surge absorber for protecting communication networks.
Through our long history of developing microgap products,
we have been able to realize a product with excellent surge protection
characteristics and low capacitance of less than 0.6pF. Even with its small
package design, it is easily able to withstand 1,500A (8/20µsec.) surges.
Meets the standard for ADSL POTS* splitters, in accordance with ITU-T (International Telecommunication Union test standard) K.20 and K.21 Basic Test Conditions.
*POTS : Plain Old Telephone Service
■ Features
• Standard small
chip package (EIA 1612, height 2.3±0.2mm), for use with standard place and
reflow solder equipment.
• Superior surge response
characteristics from
microgap technology.
• Low capacitance of
less than 0.6pF means
no appreciable attenuation on high-speed, megabit class communication
signals.
• High insulation resistance
of over 100Mohm.
• Use tin plated electrodes
and are completely
lead free.
|
■ Part number system
|
CSA70
|
|
401
|
L
|
|
T
|
|
|
|
|
|
|
|
|
Series
|
|
DC
Spark-over
voltage(Vs)
|
DC
Spark-over
voltage tolerance
|
|
Taping
form
|
| |
|
|
|
|
|
|
|
|
The
first two digits are significant,
and the third is number of zeros.
|
|
|
|
|
|
| |
|
|
|
|
|
|
■ Dimensions
|
■ Recommended Land Pattern
 |
■ Characteristics
|
Series
|
Part
number
|
DC
spark-over
voltage
Vs
|
Insulation
resistance
IR
|
Electrostatic
capacitance
1kHz-6V max. C
|
Surge
current
capacity
|
Surge
life test
|
UL
recognized
|
|
UL
497B i)
|
|
CSA70
|
CSA70-301L
|
300V±15%
|
100MΩmin.
|
0.6pF
max
|
8/20μsec-1500A
|
8/20μsec-50A
300times
|
○
|
CSA70-401L
|
400V±15%
|
○
|
CSA70-601M
|
600V±20%
|
○
|
1) UL
Standard
UL 497B File
No.
E175280 (N) |
|
■ Surge Response characteristics (Reference)
|
■ Insertion Ioss properties (Reference)
 |
|
As can be seen in the figure on the
left, the CSA70 series can be used on megabit class
lines without in bibiting the high-speed signals
due to a low capacitance of less than 0.6pF. |
|
■ ITU-T K2.0 or K21 Basic Test Condition for CSA70-401L
(Reference)
 |
As seen in the figure on the left,
through out the test, the breakdown voltage never
decreases, Furthermore, there is no charge in the
insulation resistance or capacitance of the part. |
| |
| |
Power cross Test : AC230V (10~1000Ω)
15min. |
| |
However, AC230V is too low for CSA70-401L to react. |
| |
As mentioned above, CSA70-401L correspond
to ITU-T (International / Telecommunication Union
Test Standard) K.20 or K.21 Basic Test Conditions
for the ADSL POTS* spliter standard |
|
| |
