Littelfuse AK15 Series - Manual (Page 3)

Transient Voltage Suppression Diodes
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/04/14
Axial Leaded – 15kA > AK15 series
L2 L1
A
G
D
E
F
C
C
B
Dimensions Inches Millimeters
A 0.95±0.03 24.15±0.8
B 0.095±0.024 2.4±0.60
C 0.236±0.04 6.00±1.0
D 0.630±0.055 16.0±1.4
E 0.050±0.002 1.27±0.05
F 0.571±0.055 14.5±1.4
G - 058C 0.292±0.047 7.41±1.20
G - 066C/076C 0.351±0.047 8.91±1.20
L1/L2 L1 = L2 tolerance +/- 0.04 inch (1.0 mm)
Dimensions
Figure 7 - Surge Response (8/20 Surge current waveform)
Voltage
Current
Time (µs)
50
100
0
t
r
t
d
0
Peak
Value
Half Value
t – Time (µs)
I PP
– P
eak P
ulse C
ur
ren
t – %I
PP
t
r
= rise time to peak value
t
d
= decay time to half value
t
r x t d
=8/20µs
Figure 8 - Pulse Waveform
0.1
1
10
10000
0.00001 0.0001 0.001
P PPM
-Peak Pulse Power (kW
)
t
d
-Pulse Width (sec.)
100
AK15-076C
1000
8/20µs
10/350µs
10/1000µs
Figure 5 - Typical Peak Pulse Power Rating Curve Figure 6 - Typical V
BR
Vs Junction Temperature
-8
-6
-4
-2
0
2
4
6
8
10
12
-50 -25 0 25 50 75 100 125
Percent of
V BR
Change
Junction Temperature(T
j
)
Notes:
The power dissipation causes a change in avalanche
voltage during the surge and the avalanche voltage
eventually returns to the original value when the
transient has passed