SENSITRON
SEMICONDUCTOR
20KPA SERIES
GLASS PASSIVATED JUNCTION TRANSIENT VOLTAGE SUPPERSSOR
Data Sheet 1251
,
Rev. B
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
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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SENSITRON
SEMICONDUCTOR
Data Sheet 1251 Rev. B
20KPA SERIES
GLASS PASSIVATED JUNCTION TRANSIENT VOLTAGE SUPPERSSOR
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.
4- In no event shall Sensitron Semiconductor be liable for any failure in a semiconductor device or any secondary damage resulting from
use at a value exceeding the absolute maximum rating.
5- No license is granted by the datasheet(s) under any patents or other rights of any third party or Sensitron Semiconductor.
6- The datasheet(s) may not be reproduced or duplicated, in any form, in whole or part, without the expressed writ ten permission of
Sensitron Semiconductor.
7- The products (technologies) described in the datasheet(s) are not to be provided to any party whose purpose in their application will
hinder maintenance of international peace and safety nor are they to be applied to that purpose by their direct purchasers or any third
party. When exporting these products (technologies), the necessary procedures are to be taken in accordance with related laws and
regulations.
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