Transient voltage suppression diodes, Axial leaded – 1ka > ak1 series, Flow/wave soldering (solder dipping) – Littelfuse AK1 Series User Manual
Page 2: Physical specifications, Figure 4 - typical peak pulse power rating curve
Transient Voltage Suppression Diodes
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/04/14
Axial Leaded – 1kA > AK1 series
Flow/Wave Soldering (Solder Dipping)
Peak Temperature :
265°C
Dipping Time :
10 seconds
Soldering :
1 time
Physical Specifications
Weight
Contact manufacturer
Case
Epoxy encapsulated
Terminal
Silver plated leads, solderable per
MIL-STD-750, Method 2026
0
50
100
150
200
250
300
0
0.5
1
1.5
2
2.5
3
3.5
4
TIME(MINUTES)
TEMPE
RA
TU
R
E
(º
C
)
Maximum Wave 240C
Figure 1 - Non Lead-free Profile
Wave Solder Profile
Figure 2 - Lead-free Profile
0
50
100
150
200
250
300
0
0.5
1
1.5
2
2.5
3
3.5
4
TIME(MINUTES)
TEMPE
RA
TU
R
E
(ºC
)
Maximum Wave 260C
0
20
40
60
80
100
0
25
50
75
100
125
T - AMBIENT TEMPERATURE (°C)
Percent of Rated
Value
A
0
20
40
60
80
100
120
0
25
50
75
100
125
T - AMBIENT TEMPERATURE (°C)
Percent of Rated
Value
A
Figure 3 - Peak Power Derating
Ratings and Characteristic Curves
(T
A
=25°C unless otherwise noted)
Figure 4 - Typical Peak Pulse Power Rating Curve
1
10
100
1000
0.00001
0.0001
0.001
P
PPM
-Peak Pulse Power (kW
)
t
d
-Pulse Width (sec.)
8/20µs
10/350µs
10/1000µs
continues on next page.