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Data Sheet
CP Series
July 1999 File Number 2188.5
[ /Title
(CP
Series)
/Sub-
ject
(Tubu-
lar
Metal-
Oxide
Varis-
tors)
/Autho
r ()
/Key-
words
(Littel-
fuse,
Inc.,
Sup-
pres-
sion
Prod-
ucts,
TVS,
Tran-
sient
Sup-
pres-
sion,
Protec-
tion,
High-
reli-
ability,
High
Reli-
ability,
Mil,
Hi-rel,
Tubular Metal-Oxide Varistors
The CP Series of transient voltage surge suppressors are
metal-oxide varistors (MOVs) of tubular construction. These
varistors are intended for mounting within a multipin
connector assembly. This series is available in a wide range
of voltage ratings from 6V to 150V VM(AC)RMS. Their internal
dimensions allow them to be used with 16, 20, or 22 gauge
connector pins. The unique coaxial mounting arrangement of
these tubular varistors allow them to become part of a
transmission line itself. Added inductive lead effects are
eliminated.
Varistor action takes place between the inside and outside
diameters of the tube. Typically, data or signal lines make
electrical connection to the inside of the tube. The outside
tube surface is then connected to ground or common.
The CP Series is supplied in Bulk Pack.
Features
• Unique Coaxial Design and Mounting Arrangement in
Tubular Form
• Designed to be Integrated Within Standard Connector
Assemblies
• Wide Operating Voltage Range VM(AC)RMS . . . . 6V to 150V
• Can be Used with 16, 20, or 22 Gauge Standard
Connector Pins
• No Derating up to 125oC Ambient
Packaging
CP SERIES
OBSOLETE
PART
4-82
1-800-999-9445 or 1-847-824-1188 | Copyright © Littelfuse, Inc. 1999

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CP Series
Absolute Maximum Ratings For ratings of individual members of a series, see Device Ratings and Specifications chart
Continuous:
Steady State Applied Voltage:
AC Voltage Range (VM(AC)RMS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC Voltage Range (VM(DC)) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transient:
Peak Pulse Current (ITM)
For 8/20µs Current Wave (See Figure 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Single Pulse Energy Range
For 10/1000µs Current Wave (WTM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Ambient Temperature Range (TA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range (TSTG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature Coefficient (αV) of Clamping Voltage (VC) at Specified Test Current . . . . . . . . . . . . . . . . . .
CP SERIES
6 to 150
8 to 150
250 to 500
1.5 to 5
-55 to 125
-55 to 150
<0.01
UNITS
V
V
A
J
oC
oC
%/oC
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Device Ratings and Specifications
MAXIMUM RATINGS (125oC)
SPECIFICATIONS (25oC)
MODEL
OBSOLETEPART
CONTINUOUS
TRANSIENT
VRMS
VM(AC)
VDC
PEAK
ENERGY CURRENT
(10/1000µs) (8/20µs)
VM(DC)
WTM
ITM
VARISTOR VOLTAGE AT
1mA DC TEST CURRENT
MIN VN(DC) MAX
MAX. CLAMPING
VOLTAGE VC AT
TEST CURRENT
(8/20µs)
VC IP
CAPACI-
TANCE AT
f = 1MHz
MIN MAX
NUMBER
SIZE
(V)
(V)
(J)
(A) (V) (V) (V) (V) (A) (pF) (pF)
V8CP22
V14CP22
V31CP22
V38CP22
V130CP22
PART22B 6.0
8.0
22B 10.0 14.0
22B 25.0 31.0
22B 30.0 38.0
1.5
1.5
1.5
1.5
250 12.5 16.0 19.5 34.0
250 18.5 22.0 25.5 42.0
250 35.0 39.0 48.0 85.0
250
42.0
47.0
58.0 100.0
22A 130.0 130.0
2.4
300 184.0 200.0 228.0 375.0
10 1600 2950
10 1600 2950
5 450 1950
5 450 1950
5 150 350
V150CP22
22A 150.0 150.0
2.4
300 212.0 240.0 268.0 430.0 5 100 300
V31CP20
20B 25.0 31.0
2.0
300
35.0 39.0 48.0 85.0
10 700 2200
V38CP20
20B 30.0 38.0
2.0
300
42.0
47.0
58.0 100.0
10
650 1950
V130CP20
20A 130.0 130.0
3.0
400 184.0 200.0 228.0 375.0 10 150 400
V150CP20
20A 150.0 150.0
3.0
400 212.0 240.0 268.0 430.0 10 100 350
V38CP16
16A 30.0 38.0
3.0
350
42.0
47.0
58.0 100.0
20 1000 2750
V130CP16
16A 130.0 130.0
5.0
500 184.0 200.0 228.0 375.0 20 250 700
V150CP16
16A 150.0 150.0
5.0
500 212.0 240.0 268.0 430.0 20 200 650
NOTE: Average power dissipation of transients not to exceed 250mW, 300mW and 350mW for sizes 22AWG, 20AWG and 16AWG, respectively.
4-83

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CP Series
Device Leakage Current
25oC
LEAKAGE CURRENT AT VT(DC)
125oC
MODEL
NUMBER
PART SIZE
IL TYP
(µA)
IL MAX
(µA)
IL TYP
(µA)
IL MAX
(µA)
VT(DC)
(V)
V8CP22
22B 0.5
5.0
5.0
50
8
V14CP22 22B 0.5 5.0 5.0 50 14
V31CP22 22B 0.5 5.0 5.0 50 28
V38CP22 22B 0.5 5.0 5.0 50 36
V130CP22
22A
0.5
5.0 25.0 100 130
V150CP22
22A
0.5
5.0 25.0 100 150
V31CP20 20B 0.5 5.0 5.0 50 28
V38CP20 20B 0.5 5.0 5.0 50 36
V130CP20
V150CP20
V38CP16
V130CP16
V150CP16
20A 0.5
20A 0.5
16A 0.5
OBSOLETE16A 0.5
5.0 25.0 100 130
5.0 25.0 100 150
5.0 5.0 50 36
5.0 25.0 100 130
16A 0.5
5.0 25.0 100 150
Power Dissipation Ratings
1.
Should transients occur in rapid succession, the average
power dissipation required is simply the energy (watt-
seconds) per pulse times the number of pulses per second.
The power so developed must be within the specifications
PARTshown on the Device Ratings and Specifications table for the
100
90
80
70
60
specific device. Furthermore, the operating values need to
50
be derated at high temperatures as shown in Figure 1.
40
Because varistors can only dissipate a relatively small
amount of average power they are, therefore, not suitable for
repetitive applications that involve substantial amounts of
average power dissipation.
30
20
10
0
-55 50 60 70 80 90 100 110 120 130 140 150
AMBIENT TEMPERATURE (oC)
FIGURE 1. CURRENT, ENERGY AND POWER DERATING
CURVE
100
90
O1 = Virtual Origin of Wave
T = Time From 10% to 90% of Peak
T1 = Virtual Front time = 1.25 t
T2 = Virtual Time to Half Value (Impulse Duration)
50 Example: For an 8/20µs Current Waveform:
8µs = T1 = Virtual Front Time
20µs = T2 = Virtual Time to Half Value
10
O1
T
T1
T2
TIME
FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM
4-84

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Transient V-I Characteristics Curves
300
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 16 GAUGE
200 T3A8V=M-(5D5Co)CRTAOTI1N2G5oC
CP Series
3,000
2,000
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 16 GAUGE
T1A30=T-O551o5C0VTOM(1A2C5) oRCATING
100
90
80
70
60 V38CP16
50
40
30
20
10-3
10-2
10-1
100
101 102 103
PEAK AMPERES (A)
1,000
900
800
700
600
500
400
V150CP16
300
V130CP16
200
10-3
10-2
10-1
100
101 102 103
PEAK AMPERES (A)
FIGURE 3. CLAMPING VOLTAGE FOR V38CP16
300
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 20 GAUGE
OBSOLETE200
31
TA
T=O-5358oVCMT(DOC1)2R5AoTCING
FIGURE 4. CLAMPING VOLTAGE FOR V130CP16 - V150CP16
3,000
2,000
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 20 GAUGE
1TA30=T-O551o5C0VTOM(1A2C5) oRCATING
100
90
80
70
60
V38CP20
50
40 V31CP20
30
20
10-3
10-2
10-1
100
101
PEAK AMPERES (A)
PART1,000
900
800
700
600
500
400
V150CP20
300
V130CP20
102 103
200
10-3
10-2
10-1
100
101
PEAK AMPERES (A)
102 103
FIGURE 5. CLAMPING VOLTAGE FOR V31CP20 - C38CP20
FIGURE 6. CLAMPING VOLTAGE FOR V130CP20 - V150CP20
300
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 22 GAUGE
200 31 TO 38VM(DC) RATING
TA = -55oC TO 125oC
100
90
80
70 V38CP22
60
50 V31CP22
40
30
20
10-3
10-2
10-1
100
101 102 103
PEAK AMPERES (A)
FIGURE 7. CLAMPING VOLTAGE FOR V31CP22 - V38CP22
3,000
2,000
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 22 GAUGE
1TA30=T-O551o5C0VTOM(1A2C5) oRCATING
1,000
900
800
700
600
500
400
300
V150CP22
V130CP22
200
10-3
10-2
10-1
100
101
PEAK AMPERES (A)
102 103
FIGURE 8. CLAMPING VOLTAGE FOR V130CP22 - V150CP22
4-85

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CP Series
Transient V-I Characteristics Curves (Continued)
100
100
V14CP22
10
V8CP22
10
1
10-3
10-2
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 22 GAUGE
T1A4V=M-(5D5Co)CRTAOTI1N2G5oC
10-1 100 101 102 103
PEAK AMPERES (A)
1
10-3
10-2
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 22 GAUGE
8TAVM=(D-5C5)oRCATTOIN1G25oC
10-1 100 101 102 103
PEAK AMPERES (A)
FIGURE 9. CLAMPING VOLTAGE FOR V14CP22
FIGURE 10. CLAMPING VOLTAGE FOR V8CP22
Pulse Rating Curves
500
1
200 2
100
102
50
MODEL SIZE 16 GAUGE
10 V38CP16
OBSOLETE104105106
1,000
500
200
100
50
1
2
10
102
MODEL SIZE 16 GAUGE
V130CP16 - V150CP16
103104105106
103
20
20 10
10
5
2 INDEFINITE
1
PART5
2 INDEFINITE
1
0.5
0.2
0.5
20
100 1,000
IMPULSE DURATION (µs)
10,000
0.1
20
100 1,000
IMPULSE DURATION (µs)
10,000
FIGURE 11. SURGE CURRENT RATING CURVES FOR V38CP16
FIGURE 12. SURGE CURRENT RATING CURVES FOR
V130CP16 - V150CP16
500
1
200
100
50 102
103
20
10
5
MODEL SIZE 20 GAUGE
V31CP20 - V38CP20
2
10
104105106
2 INDEFINITE
1
0.5
20
100 1,000
IMPULSE DURATION (µs)
10,000
FIGURE 13. SURGE CURRENT RATING CURVES FOR
V31CP20 - V38CP20
1,000
500 1
200 2
100 10
50
MODEL SIZE 20 GAUGE
V130CP20 - V150CP20
102103104105106
20
10
5
2
INDEFINITE
1
0.5
0.2
0.1
20
100 1,000
IMPULSE DURATION (µs)
10,000
FIGURE 14. SURGE CURRENT RATING CURVES FOR
V130CP20 - V150CP20
4-86