BC Components
Product specification
PTC thermistors for degaussing
FEATURES
•
Extra long decay time
•
Stable performance over a long
time (>20000 operations)
•
Self-extinguishing white plastic
case
(“UL 94.V.0”)
•
Design-in support available.
APPLICATIONS
•
Colour televisions
•
Colour monitors.
DESCRIPTION
For good picture definition, colour
televisions and monitors must be
degaussed by a strong alternating
magnetic field which gradually and
symmetrically decays to a small value
of residual current. This can be
achieved by connecting a PTC
thermistor in the degaussing circuit.
MBB633
Double mono cased
145 V to 276 V
handbook, halfpage
Fig.1 Double mono outlines.
QUICK REFERENCE DATA
PARAMETER
Resistance of degaussing PTC (R
s
) at 25
°C
Standard tolerance on resistance of
degaussing PTC (R
s
) at 25
°C
Standard tolerance on resistance of heater
PTC (R
p
) at 25
°C
Maximum AC voltage (RMS value)
Minimum inrush current (peak-to-peak value)
Temperature range (at maximum voltage)
Available pitch:
4e/2e
Standard pin length
Detailed specifications based on
10.16 to 5.08
4.2
mm
mm
VALUE
1.5 to 9
20 and 25
75
145 to 276
27 to 39
0 to 60
Ω
%
%
V
A
°C
UNIT
CECC 44000/IEC 60 738
1999 May 17
276
BC Components
Product specification
PTC thermistors for degaussing
INRUSH CURRENT
Double mono cased
145 V to 276 V
handbook, full pagewidth
I
INR
(%)
CCB447
100
80
60
40
20
0
90
110
220
300
V (V
RMS
)
Fig.2 Minimum inrush current as a percentage of mains voltage.
Application specific data
The data shown in Tables 1 and 2 is obtained from measurements at reference parameters. If these parameters do not
correspond to the application parameters required, refer to Figures 7 to 13 in this data handbook, section
“Introduction, PTC thermistors for degaussing”.
1999 May 17
277
BC Components
Product specification
PTC thermistors for degaussing
MECHANICAL DATA
Double mono cased
145 V to 276 V
16.5
±0.5
handbook, full pagewidth
14.1
±
0.5
4e/2e pitch
B
A
C
5.08
±0.3
(2e)
H
±0.4
0.9
±0.1
4.2
±0.3
1.1 max.
5.08
±0.3
5.08
±0.6
10.16
±0.508
0.25
±0.05
5.08
±0.6
CCB304
Dimensions in mm.
High cap (H = 20.5 mm.).
For electrical data and ordering information, see Tables 1 and 2.
Fig.3 Double mono PTC pin configuration 4e/2e pitch.
1999 May 17
278
1999 May 17
279
BC Components
ELECTRICAL DATA AND ORDERING INFORMATION
PTC thermistors for degaussing
Double mono cased range
Table 1
Electrical data and catalogue numbers;
U
R
= 220 to 240 V (RMS)
MAXIMUM
PEAK-TO-PEAK
(1)
RESIDUAL CURRENT
(mA)
after
5s
200
200
200
200
200
after
30 s
35
35
35
40
40
after
180 s
25
25
25
30
30
R
25
(3)
(Ω)
R
coil
(2)(6)
(Ω)
TYPICAL DECAY
PERFORMANCE
CAP
(7)
R
s
9 (18
×
2)
7 (14
×
2)
6 (12
×
2)
4.5 (9
×
2)
3.5 (7
×
2)
±%
25
25
20
20
20
MIN.
7
7
7
10
13
TYP.
10
10
10
13
13
DECAY
TIME
(4)(6)
(ms)
80
80
85
130
135
ALPHA
MAX.
(5)
(%)
31
31
31
27
27
high
high
high
high
high
4e/2e pitch
2322 662 96754
2322 662 96752
2322 662 96756
2322 662 96758
2322 662 96759
CATALOGUE NUMBER
(8)
2322 662 .....
MINIMUM
PEAK-TO-PEAK
(1)
INRUSH CURRENT
(A)
33
34
36
33
35
Notes
1. All peak-to-peak currents are measured at typical resistance of the coil at 220 V 50 Hz (AC) and at 25
°C.
2. Lower minimum coil resistance is available on request.
3. The indicated resistance value is the parallel combination of two degaussing PTCs.
4. Decay time is the time from the moment of maximum peak current until the half of the maximum peak inrush current.
5. Alpha maximum is the maximum decrease in current expressed in percent between two successive peaks.
6. Inrush currents and decay times at other voltage coil combinations can be derived from Figures 7 to 13 in this data handbook,
section
“Introduction, PTC thermistors for degaussing”.
7. Cap: high cap; H = 20.5 mm.
Double mono cased
276 V
8. Smallest packaging quantity (SPQ) = 600 units.
Product specification
1999 May 17
280
BC Components
Table 2
Electrical data and catalogue numbers;
U
R
= 100 to 120 V (RMS)
PTC thermistors for degaussing
MINIMUM
PEAK-TO-PEAK
(1)
INRUSH CURRENT
(A)
MAXIMUM
PEAK-TO-PEAK
(1)
RESIDUAL CURRENT
(mA)
after
5s
250
250
250
after
30 s
80
80
80
after
180 s
45
45
45
R
25
(3)
(Ω)
R
coil
(2)(6)
(Ω)
TYPICAL DECAY
PERFORMANCE
CAP
(7)
DECAY
TIME
(4)(6)
(ms)
255
200
265
ALPHA
MAX.
(5)
(%)
16
19
20
high
high
high
CATALOGUE NUMBER
(8)
2322 662 .....
R
s
3.5 (7
×
2)
2.5 (5
×
2)
1.5 (3
×
2)
±%
20
20
20
MIN.
3
3
3
TYP.
7
6
6
4e/2e pitch
2322 662 96757
2322 662 96755
2322 662 96753
27
34
39
Notes
1. All peak-to-peak currents are measured at typical resistance of the coil at 110 V 50 Hz (AC) and at 25
°C.
2. Lower minimum coil resistance is available on request.
3. The indicated resistance value is the parallel combination of two degaussing PTCs.
4. Decay time is the time from the moment of maximum peak current until the half of the maximum peak inrush current.
5. Alpha maximum is the maximum decrease in current expressed in percent between two successive peaks.
6. Inrush currents and decay times at other voltage coil combinations can be derived from Figures 7 to 13 in this data handbook,
section
“Introduction, PTC thermistors for degaussing”.
7. Cap: high cap; H = 20.5 mm.
8. Smallest packaging quantity (SPQ) = 600 units.
Double mono cased
145 V
Product specification