P22Z3 데이터 시트보기 (PDF) - Littelfuse, Inc
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P22Z3 Datasheet PDF : 13 Pages
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Varistor Products
Radial Lead Varistors > ZA Series
Power Dissipation Ratings
Peak Pulse Current Test Waveform
100
90
80
70
60
50
40
30
20
10
0
-55 50
Figure 1
60 70 80 90 100 110 120 130 140 150
AMBIENT TEMPERATURE ( oC)
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 shown on the Device Ratings
and Specifications Table for the specific device. Furthermore,
the operating values need to be derated at high temperatures as
shown in the diagram above. 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.
Maximum Clamping Voltage for 5mm Parts
V8ZA05(P) - V68ZA05(P)
600
500
MAX CLAMPINGVOLTAGE
MODEL SIZE 5mm
400
300
8 TO
TA =
-6585VoNC(DTCO)
RATING
85oC
200
100
90
80
70
60
V68ZA05(P)
V56ZA05(P)
V47ZA05(P)
50 V39ZA05(P)
40
V33ZA05(P)
V27ZA05(P)
30
V22ZA05(P)
V18ZA05(P)
20 V12ZA05(P)
V8ZA05(P)
10
10-3
10-2
10-1
100
101
102
103
Figure 3
PEAK AMPERES (A)
V360ZA05(P) - V750ZA05(P)
3000
2000
1000
V750ZA05(P)
V715ZA05(P)
V680ZA05(P)
V620ZA05(P)
V470ZA05(P)
V430ZA05(P)
V390ZA05(P)
V360ZA05(P)
MAX CLAMPING VOLTAGE
MODEL SIZE 5mm
3TA60=T-O557o5C0VTON(D85Co) CRATING
100
90
50
10
O1
Figure 2
T
T1
T2
TIME
01 7JSUVBM0SJHJOPG8BWF
5 5JNFGSPNUPPG1FBL
T = Rise Time = 1.25 x T
1
T = Decay Time
2
Example - For an 8/20 μT$VSSFOU8BWFGPSN
8μs = T1 = Rise Time
20μs = T2 = Decay Time
V82ZA05(P) - V33ZA05(P)
2000
1000
500
V330ZA05(P)
V270ZA05(P)
V240ZA05(P)
V220ZA05(P)
V205ZA05(P)
V180ZA05(P)
V150ZA05(P)
V120ZA05(P)
MAX CLAMPING VOLTAGE
MODEL SIZE 5mm
82
TA
T=O-5353o0CVTNO(D8C5) oRCATING
200
V1V0802ZZAA0055((PP))
100
0.0001 0.001
Figure 4
0.01
0.1
1
10
PEAK AMPERES (A)
100 1000
500
0.0001 0.001 0.01
0.1
1
10
Figure 5
PEAK AMPERES (A)
ZA Varistor Series
100 1000
Revision: September 22, 2010
©2010 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/za.html for current information.
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