CSB Series:

CSB Series:
◆ Features
■ Small in size but high in surge current capacity.
■ Dielectrically excellent.
■ Possible to test with-standing-voltage without removing surge absorber.
■ Due to small capacitance no affect on electric circuits.
■ No polarity.
■ No light and shade effect.
■ Becoming open-mode when damaged.
◆ Application
■ Protection of communication apparatuses such as telephones and facsimiles. modem
■ For AC withstanding voltage tests.
■ Protection of electric home appliances(coolers, heaters and the like).
■ Protection of apparatuses mounted on automobile.
■ Sensor lines and industrial machines.
■ Used to protect switching power supplies and uninterruptible power systems (ups).
■ Used to Eprotect circuits requiring large surge current capacity.
■ Excellent for protecting TV-tuner circuits.
1.Part Number System
CSB
Series
102
M
DC Spark-over
Voltage tolerance
DC Spark-over
Voltage
The first two digits are Significant
and the third is number of zeros
A
Shape
<
L
±15%
A
Axial
M
± 20%
R
Radial
B
Bulk
Example: Assume the designation is 102
This means that the Sark-over voltage is
10×102=1000V
2.Characteristics
Part
Number
DC Spark
over voltage
(V)
Insulation
Resistance IR
(MΩ)
CSB-301M
300
(240~360)
100
(DC100V)
400
(320~480)
500
(400~600)
1000
(800~1200)
1500
(1200~1800)
2400
(1920~2880)
3000
(2400~3600)
3600
(2880~4320)
4000
(3200-4800)
400
(3600-5400)
100
(DC250V)
100
(DC250V)
100
(DC500V)
100
(DC500V)
100
(DC500V)
100
(DC500V)
100
(DC500V)
100
(DC500V)
100
(DC500V)
CSB-401M
CSB-501M
CSB-102M
CSB-152M
CSB-242M
CSB-302M
CSB-362M
CSB-402M
CSB-452M
Capacitance
(pF)
Surge Current
Capacity
(8×20) μ sec
Surge Life
Test
(1.2× 50) μ
sec
100A
AC
Withstanding
Voltage
(1 min)
UL UL
CSA TUV
1414 1449
◎
N/A
◎
2Max.
2000A
300 times
◎
AC 1000V
◎
AC 1500V
◎
AC 1500V
◎
AC 2000V
◎
AC 2000V
◎
3.Electrical Characteristics
NO.
1
2
3
Test Item
RATED VALUE
Spark-over voltage
Rated value should be satisfied.
Insulation resistance
Rated value should be satisfied.
Capacitance
1pF max.
Surge life test
Variation of spark-over voltage should be
+20%.
Except it, rated values should be
±
satisfied.
Apply surge current of 1.2 x 50 micro
seconds 100A of surge current 300 times at
an interval of 30 seconds and carry out
characteristic tests.
Surge current capacity
No breaks at 2000A.
Apply surge current of 8 x 20 μsec 3 times at
an interval of 5 minutes. Then, check lead
wire, glass tube, etc. for any damage.
Cold resistance
Rated values should be satisfied.
Leave the subject in environment at -55
degrees centigrade for 1,000 hours. Then take
it back into environment under normal
temperature and normal pressure and after
four hours, carry out characteristic tests.
4
5
6
TEST PROCEDURE
Apply DC voltage gradually and measure the
voltage when discharge begins.
Measure insulation resistances between
terminals.
Apply voltage less than 1kHz6V and measure
capacitance.
Heat resistance
Rated values should be satisfied.
Humidity resistance
Rated values should be satisfied.
Temperature cycle
Rated values should be satisfied.
7
8
9
Compatibility with soldering More than 3/4should be covered with
solder.
10
Leave the subject in environment at 85
degrees centigrade for 1,000 hours. Then
take it back into environment under normal
temperature and normal pressure and after
four hours, carry out characteristic tests.
Leave the subject in environment at 40
degrees centigrade RH90-95% for 1,000
hours.
Then take it back into environment under
normal temperature and normal humidity
and after four hours, carry out characteristic
tests.
Make the subject under go a temperature
cycle of-55 degrees centigrade (30min.)
→normal temperature (2min.) → 85 degrees
centigrade (30min.) →normal temperature
(2min.) for 25times.
Then take it back into environment under
normal temperature and normal humidity
and after four hours, carry out characteristic
tests.
Immerse lead wire attached with prescribed
flux in fused solder at 230 +5/-5 degrees
centigrade for
5 seconds, leaving 5mm of the wire from the
root outside.
Wash it and examine fixing of solder.
Solder heat resistance
Rated value should be satisfied.
Tensile strength
Lead wire should not get off nor be burnt Apply a load of 4.9kg gradually in the
out.
axial direction in which it is drawn out.
Hold the load for 10 seconds and check
whether it has any apparent abnormality.
Bending strength
Lead wire should not get off nor be burnt Bend lead wire, at a point 5mm apart
out.
from the root, perpendicularly to its axis
by means of a 2.45N load and restore it.
Repeat this step twice and check whether
it has any apparent abnormality.
11
12
13
4.Standards & Drawings
5.PACKING FORM
1000PCS/Box
5000PCS/Carton
Immerse lead wire in fused solder at
260+5/-5% degrees centigrade for 10
seconds, leaving 5mm the wire from the
root outside.
Then, carry out characteristic tests.