TransientVoltage Suppression Diodes
Axial Leaded – 20000W > 20KPA series
RoHS
20KPA Series
Description
The 20KPA Series is designed specifically to protect
sensitive electronic equipment from voltage transients
induced by lightning and other transient voltage events.
Features
tꢀ)BMPHFOꢁ'SFF
tꢀ -PXꢀJODSFNFOUBMꢀTVSHFꢀ
resistance
tꢀ 3P)4ꢀDPNQMJBOU
tꢀ 5ZQJDBMꢀ*R less than 2μA
above 49V
tꢀ 5ZQJDBMꢀNBYJNVNꢀ
temperature coefficient
ΔVBR = 0.1% x VBR@25°C x ΔT tꢀ )JHIꢀUFNQFSBUVSFꢀ
soldering guaranteed:
Agency Approvals
tꢀ (MBTTꢀQBTTJWBUFEꢀDIJQꢀ
260°C/40 seconds /
0.375”,(9.5mm) lead
length, 5 lbs., (2.3kg)
tension
tꢀ 1MBTUJDꢀQBDLBHFꢀIBTꢀ
Underwriters Laboratory
Flammability classification
94V-O
junction in P600 package
AGENCY
AGENCY FILE NUMBER
E230531
tꢀ ꢂꢃꢃꢃꢃ8ꢀQFBLꢀQVMTFꢀ
capability at 10×1000μs
waveform, repetition rate
(duty cycles):0.01%
tꢀ 'BTUꢀSFTQPOTFꢀUJNFꢄꢀ
typically less than 1.0ps
from 0 Volts to BV min
Maximum Ratings andThermal Characteristics
(TA=25OC unless otherwise noted)
tꢀ .BUUFꢀ5JOꢀ-FBEoGSFFꢀQMBUFE
tꢀ &YDFMMFOUꢀDMBNQJOHꢀ
capability
Parameter
Symbol
PPPM
Value
Unit
W
Peak Pulse Power Dissipation by
10x1000μs test waveform (Fig.1)
(Note 1)
20000
Applications
Steady State Power Dissipation on
inifinite heat sink atTL=75ºC (Fig. 5)
TVS devices are ideal for the protection of I/O interfaces,
CC bus and other vulnerable circuits used in telecom,
computer, industrial and consumer electronic applications.
PD
8.0
W
A
V
Peak Forward Surge Current, 8.3ms
Single Half Sine Wave Unidirectional
only (Note 2)
IFSM
400
Operating Junction and Storage
Temperature Range
T , TSTG -55 to 175
°C
J
TypicalThermal Resistance Junction
to Lead
RuJL
RuJA
8.0
40
°C/W
°C/W
TypicalThermal Resistance Junction
to Ambient
Notes:
1. Non-repetitive current pulse , per Fig. 3 and derated aboveTA = 25OC per Fig. 2.
2. Measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 per
minute maximum.
©2009 Littelfuse, Inc.
117
Revision: January 09, 2009
20KPA Series
Specifications are subject to change without notice.
Please refer to http://www.Littelfuse.com/series/20KPA.html for current information.