• Plastic package has Underwriters Laboratory
P-600
Flammability Classification 94V-0
• Glass passivated junction
• 20000W Peak Pulse Power
capability on 10/1000 µs waveform
• Voltage-20.0 to 300 Volts
• Excellent clamping capability
1.0(25.4) MIN
• Repetition rate (duty cycle): 0.05%
.360(9.1)
• Low incremental surge resistance
.340(8.6)
• Fast response time: typically less
DIA
.360(9.1)
than 1.0 ps from 0 volts to BV
.340(8.6)
• Typical IR less than 1µA above 10V
• High temperature soldering guaranteed:
265°C/10 seconds/.375", (9.5mm) lead
length, 5lbs., (2.3kg) tension
.052(1.3)
1.0(25.4) MIN
.048(1.2)
DIA
MECHANICAL DATA
Case:Molded plastic over glass passivated junction
Terminals: Plated Axial leads, solderable per
Dimensions in inches (milimeters)
MIL-STD-750, Method 2026
Polarity: Color band denoted positive end (cathode)
except Bipolar
Mounting Position: Any
Weight: 0.07 ounce, 2.1 gram
DEVICES FOR BIPOLAR APPLICATIONS
For Bidirectional use C or CA Suffix for types 20KPA30 thru types 20KPA288
Electrical characteristics apply in both directions.
MAXIMUM RATINGS AND CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
RATING
VALUE
UNITS
Peak Pulse Power Dissipation on 10/1000 µs
Pppm
20000
Watts
waveform (NOTE 1)
Peak Pulse Current of on 10-1000 µs waveform
Ippm
SEE TABLE 1
Amps
(NOTE 1)
Steady State Power Dissipation at TL=75 °C
8.0
Watts
Lead Lengths .375", (9.5mm) (NOTE 2)
Peak Forward Surge Current, 8.3ms Sine-Wave
Superimposed on Rated Load, (JEDEC Method)
IFSM
400.0
Amps
(NOTE 3)
Operatings and Storage Temperature Range
Tj, Tstg
-55 to +175
°C
20KPA SERIES
GLASS PASSIVATED JUNCTION TRANSIENT VOLTAGE SUPPERSSOR
Data Sheet 1251 Rev. B
SENSITRON
SEMICONDUCTOR
Features
,
•!! !!"#$•
•%&'(&)*+,,---.&./0•12&%#%3&./0•
Note: 1. Non-repetit i ve current pulse, per Fi gure 3 and derated above TA = 25°C per Figure 2
2. Mounted on Copper Pad area of 0.8" x 0.8" (20 x 20mm)
3. 8.3ms single half sine-wave, or equivalent square wave, Duty cycle=4 pulses per minute maximum
• UL Recognized File # E224235
20KPA SERIES
GLASS PASSIVATED JUNCTION TRANSIENT VOLTAGE SUPPERSSOR
Data Sheet 1251 Rev. B
SENSITRON
SEMICONDUCTOR
•!! !!"#$•
•%&'(&)*+,,---.&./0•12&%#%3&./0•
,
UNI-POLAR BI-POLAR
REVERSE
STANDOFF
VOLTAGE
VRWM (V)
BREAKDOWN
VOLTAGE
VBR (V)
MIN. @ IT
BREAKDOWN
VOLTAGE
VBR (V)
MAX. @ IT
TEST
CURRENT
(IT) mA
PEAK
PULSE
CURRENT
IPP (A)
REVERSE
LEAKAGE
@ VRWM
IR (µA)
MAXIMUM
CLAMPING
VOLTAGE
@IPP Vc (V)
20KPA20A 20KPA20CA 20.00 25.60 28.00 50 543.0 5000 36.8
20KPA24A 20KPA24CA 24.00 26.68 29.48 50 485.0 5000 41.2
20KPA26A 20KPA26CA 26.00 28.88 31.92 50 446.0 2000 44.8
20KPA28A 20KPA28CA 28.00 31.12 34.40 50 417.0 1000 48.0
20KPA30A 20KPA30CA 30.00 33.32 36.84 5388.0 250 51.6
20KPA32A 20KPA32CA 32.00 35.56 39.32 5368.0 150 54.4
20KPA34A 20KPA34CA 34.00 37.76 41.60 5347.0 50 57.6
20KPA36A 20KPA36CA 36.00 40.00 44.40 5325.0 20 61.6
20KPA40A 20KPA40CA 40.00 44.40 49.20 5294.0 15 68.0
20KPA44A 20KPA44CA 44.00 48.80 54.00 5275.0 10 72.8
20KPA48A 20KPA48CA 48.00 53.20 58.80 5251.0 10 79.6
20KPA52A 20KPA52CA 52.00 57.60 63.60 5233.0 10 86.0
20KPA56A 20KPA56CA 56.00 62.40 68.80 5216.0 10 92.8
20KPA60A 20KPA60CA 60.00 66.80 74.00 5205.0 10 97.6
20KPA64A 20KPA64CA 64.00 71.20 78.80 5192.0 10 104.0
20KPA68A 20KPA68CA 68.00 75.60 83.60 5181.0 10 110.4
20KPA72A 20KPA72CA 72.00 80.00 88.40 5171.0 10 116.8
20KPA80A 20KPA80CA 80.00 88.80 98.00 5154.0 10 129.6
20KPA88A 20KPA88CA 88.00 97.60 107.60 5141.0 10 142.0
20KPA96A 20KPA96CA 96.00 106.80 118.00 5129.0 10 155.6
20KPA104A 20KPA104CA 104.00 115.60 127.60 5119.0 10 168.4
20KPA112A 20KPA112CA 112.00 124.40 137.60 5110.0 10 181.6
20KPA120A 20KPA120CA 120.00 133.20 147.20 5103.0 10 193.6
20KPA132A 20KPA132CA 132.00 146.80 162.40 593.8 10 213.2
20KPA144A 20KPA144CA 144.00 160.00 176.80 586.1 10 232.4
20KPA160A 20KPA160CA 160.00 177.60 196.40 577.5 10 258.0
20KPA172A 20KPA172CA 172.00 191.20 211.20 572.0 10 277.6
20KPA180A 20KPA180CA 180.00 200.00 221.20 568.8 10 290.8
20KPA192A 20KPA192CA 192.00 213.20 235.60 564.6 10 309.6
20KPA204A 20KPA204CA 204.00 226.80 250.80 560.7 10 329.6
20KPA216A 20KPA216CA 216.00 240.00 265.20 557.4 10 348.4
20KPA232A 20KPA232CA 232.00 257.60 284.80 553.4 10 374.4
20KPA240A 20KPA240CA 240.00 266.80 294.80 551.7 10 387.2
20KPA256A 20KPA256CA 256.00 284.40 314.40 548.5 10 412.0
20KPA280A 20KPA280CA 280.00 311.20 344.00 544.2 10 452.0
20KPA300A 20KPA300CA 300.00 333.20 368.40 541.3 10 484.0
For bidirectional type having Vrwm of 40 volts and less, the IR limit is double.
For parts without A , the VBR is + 10%
20KPA SERIES
GLASS PASSIVATED JUNCTION TRANSIENT VOLTAGE SUPPERSSOR
Data Sheet 1251 Rev. B
SENSITRON
SEMICONDUCTOR
•!! !!"#$•
•%&'(&)*+,,---.&./0•12&%#%3&./0•
,
0
12.5
25
37.5
50
62.5
75
87.5
100
0 25 50 75 100 125 150 175 200
Fig.2 - Pulse Derating Curve
TA - Ambient Temperature (°C)
10000
0.1
10
1
100
1000
1,000 10,000
td PULSE WIDTH
(µsec)
FIG. 1 PEAK PULSE POWER RATING
1 10 100
Non-repetitive pulse
waveform shown in
Fig. 3 TA = 25ºC
100,000
3.0
4.0
150
01.0 2.0
t
r
.
Peak Value
I
PPM
TJ = 25°C
Pulse Width(td)is defined
as the point where the
peak current decays to
50% of I
PPM
td
Fig.3 - Pulse Waveform
4.0
50
Half Value- IPPM
2
100
I
3.0
Pppm PEAK PULSE POWER KW
Peak Pulse Power (PPP)
or Current (IPP)
Derating in Percentage,%
IPPM - Peak Pulse Current,% IRSM
0t - Time(ms)
= 10 µsec.
10/1000 µsec.Waveform
as defined by R.E.A.
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DISCLAIMER:
1- The information given herein, including the specifications and dimensions, is subject to change without prior not ice to improve
product characteristics. Before ordering, purchasers are advised to contact the Sensitron Semiconductor sales department for the latest
version of the datasheet(s).
2- In cases where extremely high reliability is required (such as use in nuclear power control, aerospace and aviation, traffic equipment,
medical equipment , and safety equipment) , safety should be ensured by using semiconductor devices that feature assured safety or by
means of users’ fail-safe precautions or other arrangement .
3- In no event shall Sensitron Semiconductor be liable for any damages that may result from an accident or any other cause during
operation of the user’s units according to the datasheet(s). Sensitron Semiconductor assumes no responsibility for any intellectual
property claims or any other problems that may result from applications of information, products or circuits described in the datasheets.
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SENSITRON
SEMICONDUCTOR 20KPA SERIES
GLASS PASSIVATED JUNCTION TRANSIENT VOLTAGE SUPPERSSOR
Data Sheet 1251 Rev. B