Circuit Protection
Product Specification
2
7
Transient Voltage Suppressors
20KPA
Transient Voltage Suppressors (TVS) Data Sheet
Features
■
■
■
■
■
■
■
■
■
■
Glass passivated junction
Low inductance
Excellent clamping capability
20000W peak pulse power capability at 10/1000μs waveform,
repetition rate (duty cycle): 0.05%
Fast response time
Typical I
R
less than 2μA above 40V.
High Temperature soldering guaranteed: 265℃/10 seconds/.375″,
(9.5mm) lead length, 5lbs (2.3kg) tension
Plastic package has underwriters laboratory flammability 94V-0
Meets MSL level 1, per J-STD-020
Safety certification: UL: E244458
Mechanical Data
■
■
■
■
■
Case: Moulded plastic over glass passivated junction
Terminal: Plated Axial leads, solderable per MIL-STD-750, Method 2026
Polarity: Color band denotes cathode except bi-directional models
Mounting Position: Any
Weight: 2.40g
Applications
■
I/O interface
■
AC/DC power supply
■
Low frequency signal transmission line (RS232, RS485, etc.)
Maximum Ratings and Characteristics
Ratings at 25℃ ambient temperature unless otherwise specified.
Rating
Peak pulse power dissipation at 10/1000μs waveform
(Note1, Fig.1)
Peak pulse current of at 10/1000μs waveform (Note 1, Fig.3)
Steady state power dissipation at T
L
=75℃ (Fig.5)
Peak forward surge current, 8.3ms single half sine-wave
superimposed on rated load, (JEDEC Method) (Note2, Fig.6)
Operating junction and Storage Temperature Range.
Typical thermal resistance junction to lead
Typical thermal resistance junction to ambient
Symbol
P
PPM
I
PPM
P
M(AV)
I
FSM
T
J
,T
STG
R
θJL
R
θJA
Value
Minimum
20000
See Table
8.0
400
-55 to +175
8
40
Units
Watts
Amps
Watts
Amps
℃
℃/W
℃/W
Notes: 1. Non-repetitive current pulse, per Fig.3 and derated above T
A
=25℃ per Fig.2.
2. 8.3ms single half sine-wave, or equivalent square wave, duty cycle=4 pulses per minutes maximum.
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Apr. 29, 2019 V.0
Circuit Protection
Product Specification
3
7
Transient Voltage Suppressors
Dimensions (P600)
20KPA
Millimeters
Inches
Min.
1.000
0.340
0.340
0.047
Max.
-
0.360
0.360
0.052
Cathode Band
d
DIA.
Symbol
s
DIA.
Min.
L
T
25.40
8.60
8.60
1.19
Max.
-
9.10
9.10
1.32
L
T
L
d
s
Part Number Code
20KPA XXX C A
5% V
BR
Voltage Tolerance
Bidirectional
V
RWM
Voltage
Series Code
Ordering Code for different package
Box package: Add suffix “/B” at the end of the part number, such as 20KPA40A/B
Reel package: Add suffix “/TR13” at the end of the part number, such as 20KPA300CA/TR13
Electrical Characteristics (T
A
=25℃)
Reverse
Part Number
Stand-Off
Voltage
Unidirectional
20KPA20A
20KPA24A
20KPA26A
20KPA28A
20KPA30A
20KPA32A
20KPA34A
20KPA36A
20KPA40A
20KPA44A
20KPA48A
20KPA52A
Bidirectional
20KPA20CA
20KPA24CA
20KPA26CA
20KPA28CA
20KPA30CA
20KPA32CA
20KPA34CA
20KPA36CA
20KPA40CA
20KPA44CA
20KPA48CA
20KPA52CA
V
RWM
(V)
20.0
24.0
26.0
28.0
30.0
32.0
34.0
36.0
40.0
44.0
48.0
52.0
Breakdown
Voltage
@I
T
V
BR
(V)
22.34~24.94
26.81~29.93
29.04~32.42
31.28~34.92
33.51~37.41
35.74~39.90
38.00~42.42
40.20~44.88
44.70~49.90
49.10~54.81
53.60~59.83
58.10~64.86
Test
Current
I
T
(mA)
50
50
50
50
5
5
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
79.4
85.8
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
254.4
235.4
Reverse
Leakage
@V
RWM
I
R
(μA)
5000
5000
2000
1000
250
150
50
20
15
2
2
2
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Apr. 29, 2019 V.0
Circuit Protection
Product Specification
5
7
Transient Voltage Suppressors
20KPA
Ratings and Characteristic Curves (T
A
=25℃ unless otherwise noted)
Figure 1. Peak Pulse Power Rating Curve
1000
Figure 2. Pulse Derating Curve
Peak Pulse Power (P
PP
) or Current (I
PP
)
Derating in Percentage %
100
P
PPM
- Peak Pulse Power (kW)
75
100
50
10
25
1
0
0
25
50
75
100 125
150 175
200
T
A
-Ambient Temperature (℃)
1
10
100
1000
t
d
-Pulse Width (µs)
Figure 3. Pulse Waveform
150
t
r
=10µs
T
J
=25℃
Pulse Width(t
d
) is defined as
the point where the peak
current decays to 50% of I
PPM
Figure 4. AC Line Protection Application
100000
Bi-directional V=0V
I
PPM
- Peak Pulse Current, %I
RSM
10000
Cj (pF)
100
Peak Value I
PPM
1000
Uni-directional @V
R
Uni-directional V=0V
Half Value I
PPM
(I
PPM
/2)
50
10/1000µs Waveform
as defined by R.E.A
100
Bi-directional @V
R
10
T
J
=25℃
f=1.0MHz
Vsig=50mVp-p
0
0
t
d
1.0
2.0
t-Time (ms)
3.0
4.0
1
0
50
100
150
200
250
300
350
V
BR
-Reverse Breakdown Voltage (V)
Figure 5. Steady State Power Dissipation Derating
Curve
P
M(AV)
, Steady State Power Dissipation (W)
Figure 6. Maximum Non-Repetitive Forward
Surge Current Uni-Directional Only
I
FSM
- Peak Forward Surve Current (A)
450
400
350
300
250
200
150
100
50
0
1
10
Number of Cycles at 60Hz
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9
8
7
6
5
4
3
2
1
0
0
25
50
75 100 125 150 175 200
T
L
-Lead Temperature (℃)
L= 0.375″(9.5mm)
Lead Lengths
100
Apr. 29, 2019 V.0
Embedded System
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