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.
The new generation of flat-screen, high-definition colour
televisions and monitors require an excellent picture quality
with high colour purity. This can only be achieved by a dual
PTC device housing two PTC thermistors in intimate thermal
contact, one being used to heat the other and so further
reduce the residual current.
CCB442
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
Resistance of heater PTC (R
p
) 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/1e
4e/2e
Standard pin length
Detailed specifications based on
10.16 to 2.54
10.16 to 5.08
4.2
mm
mm
mm
VALUE
3 to 30
20 and 25
3000
75
145 to 276
10 to 30
0 to 60
UNIT
Ω
%
Ω
%
V
A
°
C
CECC 44000/
IEC 60738
www.vishay.com
184
For technical questions contact: nlr.europe@vishay.com
Document Number: 29077
Revision: 10-Oct-03
2322 662 96...
PTC Thermistors For Degaussing,
Dual, Mono And Double Mono Cased
DUAL RANGE
ELECTRICAL DATA AND ORDERING INFORMATION
MINIMUM
PEAK-TO-PEAK
(2)(6)
INRUSH CURRENT
(A)
MAXIMUM
PEAK-TO-PEAK
(2)
RESIDUAL CURRENT
(mA)
after
5s
after
30 s
after
180 s
2
2
4
2
2
2
4
4
5
5
5
10
10
10
14
10
10
R
25
(3)
(
Ω
)
R
coil
(4)(6)
(
Ω
)
TYPICAL DECAY
PERFORMANCE
TYPE
(8)
R
s
±
%
MIN.
TYP.
DECAY
TIME
(5)(6)
(ms)
60
40
40
65
50
75
40
45
70
80
95
115
110
80
85
85
115
ALPHA
MAX.
(6)
(%)
36
43
44
33
38
29
45
40
36
30
33
26
33
31
30
31
29
−
−
−
LD
−
LD
−
LD
LT
LD/LT
LT
LD/LT
LD/LT
LT
−
LD/LT
LD
4e/1e pitch
4e/2e pitch
CATALOG NUMBER
(9)
2322 662 .....
Vishay BCcomponents
U
R
= 220 to 240 V
RMS
(U
max
= 276 V
RMS
)
11
50
5
14
50
5
16
80
8
16
80
8
20
80
8
18
80
15
25
80
10
25
80
10
21
80
10
21
100
20
20
100
40
20
100
25
21
100
40
U
R
= 100 to 120 V
RMS
(U
max
= 145 V
RMS
)
19
200
20
27
200
50
30
200
20
30
200
20
30
26
22
22
18
18
14
14
12
12
9
9
7
7
5
5
3
25
25
25
25
25
25
25
25
20
20
20
20
20
20
30/15
20
30/15
17
14
14
10
10
10
10
10
10
10
13
13
20
5
5
4
4
25
17
17
17
13
17
10
10
17
17
20
20
20
7
6
5
6
96209
96211
96216
96616
96624
96626
96602
96642
96606
96646
96608
96648
−
96213
96605
96645
96643
96309
96311
96316
96716
96724
96726
96702
96742
96706
96746
96708
96748
96709
96313
96705
96745
96743
MONO CASED RANGE
ELECTRICAL DATA AND ORDERING INFORMATION
MINIMUM
PEAK-TO-PEAK
(2)
INRUSH
CURRENT
(A)
MAXIMUM
PEAK-TO-PEAK
(2)
RESIDUAL CURRENT
(mA)
R
25
(3)
(
Ω
)
R
coil
(4)(7)
(
Ω
)
TYPICAL DECAY
PERFORMANCE
CATALOG NUMBER
(9)
2322 662 .....
TYPE
(8)
after
after
after
DECAY
ALPHA
4e pitch
R
s
±
% MIN. TYP.
(5)(7)
(ms) MAX.
(6)
(%)
5s
30 s
180 s
TIME
U
R
= 220 to 240 V
RMS
(U
max
= 276 V
RMS
)
11
100
40
20
30
25
17
25
75
30
96281
−
12
50
30
20
26
25
14
25
90
30
96688
−
16
80
40
20
22
25
14
17
40
44
96286
−
20
100
50
25
18
25
10
13
50
38
96682
−
25
200
50
30
14
25
10
10
40
45
96683
−
25
200
80
30
14
25
10
10
45
40
LD
96692
21
200
80
30
12
20
10
17
70
36
96684
−
21
200
80
30
12
20
10
17
80
30
LD
96696
20
100
50
30
9
20
13
20
95
33
LT
96687
20
200
50
25
9
20
13
20
115
26
LD/LT
96698
96681
21
100
50
30
7
20
20
20
110
33
LD/LT
U
R
= 100 to 120 V
RMS
(U
max
= 145 V
RMS
)
19
200
70
40
7
20
5
7
80
31
96285
−
27
200
70
40
5
30/1
5
6
85
30
−
96686
30
200
70
40
5
20
4
5
85
31
LD
96695
30
200
70
40
3
30/1
4
6
115
29
LD
96693
Notes
1. Electrical data and catalog numbers. The shading indicates preferred types.
2. All peak-to-peak currents are measured at typical resistance of the coil, at 50 Hz (AC), at 25ºC and at 220 Vrms for the 276V types, and 110Vrms for the 145V types.
3. Lower tolerances on resistance of degaussing PTC are available on request.
4. Lower minimum coil resistance is available on request.
5. Decay time is the time from the moment of maximum peak current until the half of the maximum peak inrush current.
6. Alpha maximum is the maximum decrease in current expressed in percent between two successive peaks.
7. Inrush currents and decay times at other voltage coil combinations can be derived from Figures 7 to 13, see section
‘Introduction, PTC thermistors for degaussing”.
8. LT = low tolerance; LD = long decay.
9. Smallest packaging quantity (SPQ) = 600 units.
Document Number: 29077
Revision: 10-Oct-03
For technical questions contact: nlr.europe@vishay.com
www.vishay.com
185
2322 662 96...
Vishay BCcomponents
PTC Thermistors For Degaussing,
Dual, Mono And Double Mono Cased
DOUBLE MONO CASED RANGE
ELECTRICAL DATA AND ORDERING INFORMATION
MINIMUM
PEAK-TO-PEAK
(1)
INRUSH
CURRENT
(A)
MAXIMUM
PEAK-TO-PEAK
(1)
RESIDUAL CURRENT
(mA)
after
5s
after
30 s
after
180 s
R
25
(3)
(
Ω
)
R
coil
(2)(6)
(
Ω
)
TYPICAL DECAY
PERFORMANCE
TYPE
(7)
R
s
±
%
MIN.
TYP.
DECAY
TIME
(4)(6)
(ms)
ALPHA
MAX.
(5)
(%)
4e/2e pitch
CATALOG NUMBER
(8)
2322 662 .....
U
R
= 220 to 240 V
RMS
(U
max
= 276 V
rms
)
33
34
36
33
35
200
200
200
200
200
35
35
40
45
50
25
25
30
35
40
9.0 (18
×
2)
7.0 (14
×
2)
6.0 (12
×
2)
4.5 (9
×
2)
3.5 (7
×
2)
25
25
20
20
20
7
7
7
10
13
10
10
10
13
13
80
80
85
130
135
31
31
31
27
27
LD
LD
LD/LT
LD/LT
LD/LT
96754
96752
96756
96758
96759
U
R
= 100 to 120 V
RMS
(U
max
= 145 V
rms
)
27
34
39
Notes
All peak-to-peak currents are measured at typical resistance of the coil, at 50 Hz (AC), at 25ºC and at 220 Vrms for the 276V types, and 110Vrms for the 145V types.
Lower minimum coil resistance is available on request.
The indicated resistance value is the parallel combination of two degaussing PTCs.
Decay time is the time from the moment of maximum peak current until the half of the maximum peak inrush current.
Alpha maximum is the maximum decrease in current expressed in percent between two successive peaks.
Inrush currents and decay times at other voltage coil combinations can be derived from Figures 7 to 13 in the section,
“Introduction, PTC thermistors for degaussing”.
7. LT = low tolerance; LD = long decay.
8.
Smallest packaging quantity (SPQ) = 600 units.
1.
2.
3.
4.
5.
6.
250
250
250
80
80
80
45
45
45
3.5 (7
×
2)
2.5 (5
×
2)
1.5 (3
×
2)
20
20
20
3
3
4
7
6
6
255
200
250
16
19
21
LD/LT
LD/LT
LD/LT
96757
96755
96753
INRUSH CURRENT
Minimum inrush current as a percentage of mains voltage.
I
INR
(%)
CCB447
100
80
60
40
20
0
90
110
220
300
V (V
RMS
)
APPLICATION SPECIFIC DATA
The data shown in the above tables 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 the
“Introduction, PTC thermistors for degaussing”,
datasheet.
www.vishay.com
186
For technical questions contact: nlr.europe@vishay.com
Document Number: 29077
Revision: 10-Oct-03
2322 662 96...
PTC Thermistors For Degaussing,
Dual, Mono And Double Mono Cased
DIMENSIONS AND PIN CONFIGURATION
(1)
PRODUCT TYPE
MONO
4e
2322 662 9628.
2322 662 9668.
2322 662 9669.
Note
1. See Mono, Dual and Dual and Double drawings below.
4e/1e
2322 662 962..
2322 662 966..
DUAL
4e/2e
2322 662 963..
2322 662 967..
DOUBLE MONO
4e/2e
−
2322 662 9675.
Vishay BCcomponents
DIMENSIONS
in millimeters
Dual PTC pin configuration 4e/1e pitch.
16.5
±0.5
14.1
±0.5
4e/1e pitch
B
A
20.5
±0.4
0.9
±0.1
10.16
±0.508
0.25
±0.05
1.1 max.
2.54
±0.3
5.08
±0.3
5.08
±0.3
C
2.54
±0.3
(1e)
4.2
±0.3
CCB303
For electrical data and ordering information, see Dual Range table.
Dual and Double mono PTC pin configuration 4e/2e pitch.
16.5
±0.5
14.1
±
0.5
4e/2e pitch
B
A
20.5
±0.4
0.9
±0.1
10.16
±0.508
0.25
±0.05
1.1 max.
5.08
±0.3
5.08
±0.6
5.08
±0.6
CCB304
C
5.08
±0.3
(2e)
4.2
±0.3
For electrical data and ordering information, see Dual Range and Double Mono Range tables.
Mono PTC pin configuration 4e pitch.
16.5
±0.5
14.1
±0.5
4e pitch
A
B
20.5
±0.4
0.9
±0.1
10.16
±0.508
4.2
±0.3
1.1 max.
10.16
±0.3
0.25
±0.05
CCB305
For electrical data and ordering information, see Mono Cased Range table.
Document Number: 29077
Revision: 10-Oct-03
For technical questions contact: nlr.europe@vishay.com
www.vishay.com
187
2322 662 96...
Vishay BCcomponents
PTC Thermistors For Degaussing,
Dual, Mono And Double Mono Cased
PIN CONFIGURATIONS
PRODUCT TYPE
CONNECTION
MONO
Mains
Coil(s)
point
A
point
B
DUAL
points
A and B
points
A and B
DOUBLE MONO
point
B
points
A and C
MEASURING CIRCUITS
B
R
s
+T
V
mains
R
c
±2%
V
V
mains
+T
R
p
A
B
R
s
+T
C
R
c
±2%
V
CCB456
A
CCB457
a. Mono cased PTC degaussing.
B
R
s1
+T
R
s2
V
mains
+T
A
R
c
±2%
V
C
b. Dual cased PTC degaussing.
V = A/D converter or oscilloscope.
R
s
= resistance of series PTC or degaussing PTC.
R
p
= resistance of parallel PTC or heater PTC.
R
c
= replaces the degaussing coil.
V
mains
= AC power source with high output current
capability; frequency = 50 Hz
±1%;
total harmonic
distortion
<
2%.
For residual current measurement the R
c
resistor can be
increased to 100
Ω
1%, 30 s after inrush.
CCB458
c. Double mono cased PTC degaussing.
CONSTRUCTION
The dimensions of the ceramic are just for reference and
might vary according to the PTC degaussing type.
DUAL CASED PTC DEGAUSSING
2
5
4
Pitch 4e/1e
3
6
2
5
4
3
6
MONO CASED PTC DEGAUSSING
2
3
5
Pitch 4e
2
5
3
1
CCB449
3
4
2
3
4
5
3
6
1
4
3
1
CCB448
Pitch 4e/2e
3
3
Mono cased PTC degaussing.
CCB450
3
4
Dual cased PTC degaussing.
DOUBLE MONO CASED PTC DEGAUSSING
2
3
5
Pitch 4e/2e
1
CCB452
3
4
Double mono cased PTC degaussing.
www.vishay.com
188
For technical questions contact: nlr.europe@vishay.com
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