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
P
ACKAGE
D
IMENSIONS
d
DIA.
s
DIA.
L
T
P600
Millimeters
L
Item
L
T
d
s
Inches
Max.
-
9.10
9.10
1.32
Min.
1.000
0.340
0.340
0.048
Max.
-
0.360
0.360
0.052
Min.
25.40
8.60
8.60
1.22
S
PECIFICATIONS
Part Number
UNI-POLAR
20KPA20A
20KPA24A
20KPA26A
20KPA28A
20KPA30A
20KPA32A
20KPA34A
20KPA36A
20KPA40A
20KPA44A
BI-POLAR
20KPA20CA
20KPA24CA
20KPA26CA
20KPA28CA
20KPA30CA
20KPA32CA
20KPA34CA
20KPA36CA
20KPA40CA
20KPA44CA
Reverse
Stand-Off
Voltage
V
RWM
(V)
20.0
24.0
26.0
28.0
30.0
32.0
34.0
36.0
40.0
44.0
Breakdown
Voltage
MIN.@I
T
V
BR MIN
(V)
22.34
26.81
29.04
31.28
33.51
35.74
38.00
40.20
44.70
49.10
Test
Current
I
T
(mA)
50
50
50
50
5
5
5
5
5
5
Maximum
Clamping
Voltage
@I
PP
V
C
(V)
36.8
41.2
44.7
48.0
51.5
54.3
57.5
61.5
67.8
72.7
Peak
Pulse
Current
I
PP
(A)
548.9
490.3
451.9
420.8
392.2
372.0
351.3
328.5
297.9
277.9
Reverse
Leakage
@ V
RWM
I
R
(µA)
5000
5000
2000
1000
250
150
50
20
15
2
2
Rev 7
Transient
Voltage Suppressors
20KPA
Series
MERITEK
S
PECIFICATIONS
Part Number
UNI-POLAR
20KPA48A
20KPA52A
20KPA56A
20KPA60A
20KPA64A
20KPA68A
20KPA72A
20KPA80A
20KPA88A
20KPA96A
20KPA104A
20KPA112A
20KPA120A
20KPA132A
20KPA144A
20KPA160A
20KPA172A
20KPA180A
20KPA192A
20KPA204A
20KPA216A
20KPA232A
20KPA240A
20KPA256A
20KPA280A
20KPA300A
BI-POLAR
20KPA48CA
20KPA52CA
20KPA56CA
20KPA60CA
20KPA64CA
20KPA68CA
20KPA72CA
20KPA80CA
20KPA88CA
20KPA96CA
20KPA104CA
20KPA112CA
20KPA120CA
20KPA132CA
20KPA144CA
20KPA160CA
20KPA172CA
20KPA180CA
20KPA192CA
20KPA204CA
20KPA216CA
20KPA232CA
20KPA240CA
20KPA256CA
20KPA280CA
20KPA300CA
Reverse
Stand-Off
Voltage
V
RWM
(V)
48.0
52.0
56.0
60.0
64.0
68.0
72.0
80.0
88.0
96.0
104.0
112.0
120.0
132.0
144.0
160.0
172.0
180.0
192.0
204.0
216.0
232.0
240.0
256.0
280.0
300.0
Breakdown
Voltage
MIN.@I
T
V
BR MIN
(V)
53.60
58.10
62.60
67.00
71.50
76.00
80.40
89.40
98.30
107.20
116.20
125.10
134.00
147.40
160.80
178.70
192.10
201.10
214.50
227.90
241.30
259.10
268.10
286.00
312.80
335.10
Test
Current
I
T
(mA)
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
Maximum
Clamping
Voltage
@I
PP
V
C
(V)
79.4
85.8
92.6
97.6
104.0
110.0
116.0
130.0
142.0
155.0
168.0
182.0
194.0
213.0
232.0
258.0
277.0
291.0
309.0
329.0
348.0
374.0
387.0
412.0
451.0
483.0
Peak
Pulse
Current
I
PP
(A)
254.4
235.4
218.1
207.0
194.2
183.6
174.1
155.4
142.3
130.3
120.2
111.0
104.1
94.8
87.1
78.3
72.9
69.4
65.4
61.4
58.0
54.0
52.2
49.0
44.8
41.8
Reverse
Leakage
@ V
RWM
I
R
(µA)
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Note: For Bidirectional type having V
RWM
of 10 volts and less,the I
R
limit doubles.
3
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
编程基础
