Transient Voltage Suppression Diodes
Axial Leaded – 6kA > AK6 series
AK6 Series
Description
RoHS
Pb
e4
The AK6 series of high power TVS diode is specially
designed for meeting severe surge test environment of
both AC and DC line protection applications. It features a
very fast response and ultra low clamping characteristics
over traditional metal oxide ( MOV ) solutions. They can be
connected in series and / or parallel to create a very high
surge current protection solution.
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E128662
Features
• Very low clamping voltage
• Ultra compact: less
than one-tenth the size
of traditional discrete
solutions
• Sharp breakdown voltage
• Low slope resistance
• Bi-directional
• Foldbak technology for
superior clamping factor
• Symmetric in leads width
for easier soldering
during assembly.
• IEC-61000-4-2 ESD
15kV(Air), 8kV (Contact)
• ESD protection of data
lines in accordance with
IEC 61000-4-2
• EFT protection of data
lines in accordance with
IEC 61000-4-4
• Halogen-free
• RoHS compliant
• Glass passivated junction
• Pb-free E4 means 2nd
level interconnect is
Pb-free and the terminal
finish material is silver
Maximum Ratings and Thermal Characteristics
(T
A
=25
O
C unless otherwise noted)
Parameter
Operating Storage Temperature
Range
Operating Junction Temperature
Range
Current Rating
1
Note:
1. Rated I
PP
measured with 8/20μS pulse.
Symbol
T
STG
T
J
I
PP
Value
-55 to 150
-55 to 125
6
Unit
°C
ºC
kA
Functional Diagram
Additional Infomarion
Bi-direcctional
Datasheet
Resources
Samples
Electrical Characteristics
(T =25°C unless otherwise noted)
Part
Numbers
AK6 - 030C
AK6 - 058C
AK6 - 066C
AK6 - 076C
AK6 - 170C
AK6 - 190C
AK6 - 240C
AK6 - 380C
AK6 - 430C
A
Max. Clamping
Max.
Max. Temp
Test
Max.
Typical Reverse Breakdown
Standoff
Agency
Voltage
Reverse
Coefficient Capacitance Approval
Current
I
R
@
Part
Voltage
Voltage (V
BR
) @ I
T
V
CL
@ I
pp
Peak Pulse
Leakage
OF V
BR
0 Bias 10kHz
I
T
Marking
(V
SO
)
85
O
C
Current (I
PP
) (Note 1)
(I
R
) @V
SO
Volts
(µA)
µA
Min Volts Max Volts (mA)
V
CL
Volts I
PP
Amps
(%/
O
C)
(nF)
6 - 030C
6 - 058C
6 - 066C
6 - 076C
6 - 170C
6 - 190C
6 - 240C
6 - 380C
6 - 430C
30
58
66
76
170
190
240
380
430
10
10
10
10
10
10
10
10
10
15
15
15
15
15
15
15
15
15
32
64
72
85
180
200
250
401
440
37
70
80
95
220
245
285
443
490
10
10
10
10
10
10
10
10
10
90
110
120
140
260
290
340
520
625
6,000
6,000
6,000
6,000
6,000
6,000
6,000
6,000
6,000
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
11.0
8.0
6.0
6.5
2.8
2.5
2.0
1.4
1.0
X
X
X
X
X
X
X
X
X
Note:
Using 8/20µS wave shape as defined in IEC 61000-4-5.
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Transient Voltage Suppression Diodes
Axial Leaded – 6kA > AK6 series
Physical Specifications
Weight
Case
Terminal
Contact manufacturer
Epoxy encapsulated
Silver plated leads, solderable per
MIL-STD-750 Method 2026
Flow/Wave Soldering (Solder Dipping)
Peak Temperature :
Dipping Time :
Soldering :
265
O
C
10 seconds
1 time
Wave Solder Profile
Figure 1 - Non Lead-free Profile
Figure 2 - Lead-free Profile
300
250
TEMPERATURE (ºC)
200
150
100
50
0
0
0.5
1
1.5
2
2.5
3
3.5
4
TIME(MINUTES)
300
Maximum Wave 240C
250
TEMPERATURE (ºC)
Maximum Wave 260C
200
150
100
50
0
0
0.5
1
1.5
2
2.5
3
3.5
4
TIME(MINUTES)
Ratings and Characteristic Curves
(T =25°C unless otherwise noted)
A
Figure 3 - Peak Power Derating
Figure 4 - Surge Response
Percent of Rated Value
100
60
40
20
0
0
25
50
75
100
125
T
J
- Initial Junction Temperature (ºC)
Current (kA)
80
Voltage (V)
continues on next page.
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Transient Voltage Suppression Diodes
Axial Leaded – 6kA > AK6 series
Ratings and Characteristic Curves
(T =25°C unless otherwise noted)
(Continued)
A
Figure 5 - Typical Peak Pulse Power Rating Curve
10000
AK6-430C
Figure 6 - Typical V
BR
Vs Junction Temperature
12
10
P
PPM
-Peak Pulse Power (kW)
1000
Percent of V
BR
Change
8/20µs
8
6
4
2
0
-2
-4
-6
-8
10/350µs
100
AK6-076C
10/1000µs
10
1
0.00001
0.0001
t
d
-Pulse Width (sec.)
0.001
-50
-25
0
25
50
75
100
125
Junction Temperature(T
j
)
Figure 7 -Surge Response (8/20 Surge current waveform)
Voltage
Figure 8 - Pulse Waveform
I
PP
– Peak Pulse Current – %I
PP
100
Peak
Value
t
r
= rise time to peak value
t
d
= decay time to half value
Current
t
r
x t
d
=8/20µs
50
Half Value
Time (µs)
Note:
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.
Dimensions
A
L2
0
0
t
r
t
d
t – Time (µs)
G
L1
F
Dimensions
A
B
C
D
E
F
G - 030C
G - 058C/066C
076C
G - 170C/190C
G - 240C
G - 380C/430C
L1/L2
Inches
0.950 +/- 0.040
0.095 +/- 0.024
0.236 +/- 0.040
0.570 max.
0.050 +/- 0.002
0.500 max.
0.161 +/- 0.040
0.189 +/- 0.040
Millimeters
24.15 +/- 1.00
2.4 +/- 0.60
6.00 +/- 1.00
14.48 max.
1.270 +/- 0.05
12.70 max.
4.10 +/- 1.00
4.8 +/- 1.00
D
C
B
C
E
0.320 +/- 0.040
8.13 +/- 1.00
0.370 +/- 0.040
9.4 +/- 1.00
0.543 +/- 0.040
13.8 +/- 1.00
L1= L2 tolerance +/- 0.04 inch (1.0 mm)
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Transient Voltage Suppression Diodes
Axial Leaded – 6kA > AK6 series
Part Marking System
Part Marking
Apply to P/N listed below:
AK6-030C
AK6-058C
AK6-066C
AK6-076C
Littelfuse Logo
Littelfuse Logo
Apply to P/N listed below:
AK6-170C
AK6-190C
AK6-240C
AK6-380C
AK6-430C
6-XXXX
F
L
YWW
6-xxxx
Type 1- Side View
Type 2 - Top View
Part Numbering System
Series Type
F
L
YWW
Trace Code Marking
Y:Year Code
WW: Working Week Code
Trace Code Marking
Part Marking
Y:Year Code
WW: Working Week Code
Packing Options
Part Number
Component
Package
AK Package
AK Package
Quantity
56pcs/Box
12pcs/Box
Packaging
Option
Bulk
Bulk
AK6 - XXXX
Stand Off Voltage
(Please Refer to Electrical
Characteristics Chart)
AK6-XXXX
AK6-XXXX-12
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
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