Transient
Voltage Suppressors
20KPA
Series
MERITEK
UL E223045
F
EATURES
Plastic package.
Glass passivated junction.
20,000W Peak Pulse Power capability on 10/1000µs waveform.
Excellent clamping capability.
Repetition rate (duty cycle): 0.05%.
Low incremental surge resistance.
Fast response time: typically less than 1.0ps from 0
volt
to BV.
High temperature soldering guaranteed: 265°C/10 seconds/.375",
(9.5mm) lead length, 5lbs., (2.3kg) tension.
6
P600
M
M
ECHANICAL
D
ATA
Case: Molded plastic over glass passivated junction.
Terminals: Plated Axial leads, solderable per MIL-STD-750, Method 2026.
Polarity: Color band denotes
cathode
except Bipolar.
Mounting Position: Any.
Weight: 0.07 ounce, 2.5 grams.
D
D
EVICES
F
OR
B
IPOLAR
A
PPLICATION
For
Bidirectional
use C or CA suffix for type 20KPA20 through type 20KPA300 (e.g. 20KPA20C, 20KPA300CA);
Eelectrical
characteristics apply in both directions.
M
AXIMUM
R
ATINGS
A
ND
C
HARACTERISTICS
Ratings at
25°C
ambient temperature unless otherwise specified.
RATING
Peak Pulse Power Dissipation on 10/1000 s waveform.
(Note 1,
Fig.
1)
Peak Pulse Current on 10/1000 s waveform. (Note 1, Fig. 3)
Steady State Power Dissipation at T
L
=75
°C
, Lead length .375”
(9.5mm). (Fig. 5)
Peak Forward Surge Current,8.3ms Single Half Sine-Wave
Superimposed on Rated Load. (JEDEC Method) (Note
2,
Fig. 6)
Operating junction and Storage Temperature Range.
SYMBOL
P
PPM
I
PPM
P
M(AV)
I
FSM
T
J
, T
STG
VALUE
Minimum
20,000
See Table
UNIT
Watts
Amps
Watts
Amps
°C
8.0
400
-55 to +175
Notes:
1. Non-repetitive current pulse, per Fig. 3 and derated above T
A
=
25
°C
per
Fig. 2.
22. 8.3ms single half sine-wave, or equivalent square wave, Duty cycle = 4 pulses per minute maximum.
All specifications are subject to change without notice.
1
Rev 7
Transient
Voltage Suppressors
20KPA
Series
MERITEK
R
ATING AND
C
HARACTERISTIC
C
URVES
(T
A
: 25°C UNLESS OTHERWISE SPECIFIED)
Figure 2 - Pulse Derating Curve
100
Peak Pulse Power (P
PP
) or Current (I
PP
)
Derating in Percentage %
80
60
40
20
0
Figure 1 - Peak Pulse Power Rating Curve
Figure 1 - Peak Pulse Power Rating Curve
1000
P
PPM
- Peak Pulse Power (KW)
100
10
1
0.1
0.000001
0.00001
0.0001
0.001
0
25
50
75
100
125
150
175
200
t
d
- Pulse Width (Sec.)
T
A
-Ambient temperature (ºC)
Figure 3 - Pulse Waveform
Figure 3 - Pulse Waveform
150
I
I - Peak Pulse Current, %
RSM
PPM
tr=10µsec
Peak Value
I
PPM
T J =25°C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of PPM
I
Figure 4 - Typical Junction Capacitance
Cj, Junction Capacitance (pf)
10000
Bi-directional V= OV
Uni-directional V= OV
100
Uni-directional @ VR
Half Value
I
PPM
I
PPM
(
2
)
100
Bi-directional @ VR
50
10/1000µsec. Waveform
as defined by R.E.A
td
1
1.0
2.0
t-Time (ms)
3.0
4.0
0
Tj=25C
f=1.0MHz
Vsig=50mVp-p
0
0
50
100
150
200
250
300
350
V
BR
- Reverse Breakdwon Voltage (V)
Figure 5 - Steady State Power Dissipation Derating Curve
9
Steady State Power Dissipation (W)
Figure 6 - Maximum Non-Repetitive Forward
Surge Current Uni-Directional Only
450
I
FSM
, Peak Forward Surge Current (A)
8
7
6
5
4
3
2
1
0
0
25
50
75
100 125 150 175 200
L
L
400
350
300
250
200
150
100
50
0
1
10
Number of Cycles at 60 Hz
T
L
- Lead Temperature
(ºC)
100
4
Rev 7
嵌入式系统
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