SENSITRON
SEMICONDUCTOR
20KPA SERIES
GLASS PASSIVATED JUNCTION TRANSIENT VOLTAGE SUPPERSSOR
Data Sheet 1251
,
Rev. A
Features
• Plastic package has Underwriters Laboratory
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
• Repetition rate (duty cycle): 0.05%
• Low incremental surge resistance
• Fast response time: typically less
than 1.0 ps from 0 volts to BV
• Typical I
R
less than 1µA above 10V
• High temperature soldering guaranteed:
265°C/10 seconds/.375", (9.5mm) lead
length, 5lbs., (2.3kg) tension
• UL Recognized File # E224235
MECHANICAL DATA
Case:Molded plastic over glass passivated junction
Terminals: Plated Axial leads, solderable per
MIL-STD-750, Method 2026
Polarity: Color band denoted positive end (cathode)
except Bipolar
Mounting Position: Any
Weight: 0.07 ounce, 2.1 gram
P-600
1.0(25.4) MIN
.360(9.1)
.340(8.6)
DIA
.360(9.1)
.340(8.6)
.052(1.3)
.048(1.2)
DIA
1.0(25.4) MIN
Dimensions in inches (milimeters)
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
Peak Pulse Power Dissipation on 10/1000 µs
waveform (NOTE 1)
Peak Pulse Current of on 10-1000 µs waveform
(NOTE 1)
Steady State Power Dissipation at T
L
=75 °C
Lead Lengths .375", (9.5mm) (NOTE 2)
Peak Forward Surge Current, 8.3ms Sine-Wave
Superimposed on Rated Load, (JEDEC Method)
(NOTE 3)
Operatings and Storage Temperature Range
SYMBOL
Pppm
Ippm
Pm(AV)
VALUE
Minimum 20000
SEE TABLE 1
8.0
UNITS
Watts
Amps
Watts
I
FSM
Tj, Tstg
400.0
-55 to +175
Amps
°C
Note: 1. Non-repetitive current pulse, per Figure 3 and derated above T
A
= 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
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