Transient Voltage Suppression Diodes
Axial Leaded – 500W > SA series
SA Series
Description
Bi-directional
RoHS
Pb
e3
The SA Series is designed specifically to protect sensitive
electronic equipment from voltage transients induced by
lightning and other transient voltage events.
Uni-directional
Features
• 500W peak pulse
capability at 10/1000μs
waveform, repetition rate
(duty cycles):0.01%
• V
BR
@ T
J
= V
BR
@25°C
x (1+
α
T x (T
J
- 25))
(
α
T:Temperature
Coefficient, typical value
is 0.1%)
• Glass passivated chip
junction in DO-15 Package
• Fast response time:
typically less than 1.0ps
from 0 Volts to BV min
• Excellent clamping
capability
• Typical failure mode is
short from over-specified
voltage or current
• Whisker test is conducted
based on JEDEC
JESD201A per its table 4a
and 4c
• IEC-61000-4-2 ESD
30kV(Air), 30kV (Contact)
• ESD protection of data
lines in accordance with
IEC 61000-4-2
Applications
TVS devices are ideal for the protection of I/O interfaces,
V
CC
bus and other vulnerable circuits used in telecom,
computer, industrial and consumer electronic applications.
Additional Infomarion
• EFT protection of data
lines in accordance with
IEC 61000-4-4
• Low incremental surge
resistance
• Typical I
R
less than 1μA
when V
BR
max>13V
• High temperature
to reflow soldering
guaranteed: 260°C/40sec
/ 0.375”
,(9.5mm) lead
length, 5 lbs., (2.3kg)
tension
• Plastic package is
flammability rated V-0 per
Underwriters Laboratories
• Matte tin lead–free plated
• Halogen free and RoHS
compliant
• Pb-free E3 means 2nd
level interconnect is
Pb-free and the terminal
finish material is tin(Sn)
(IPC/JEDEC J-STD-
609A.01)
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E230531
Maximum Ratings and Thermal Characteristics
(T
A
=25
O
C unless otherwise noted)
Parameter
Peak Pulse Power Dissipation by
10/1000μs Test Waveform (Fig.2)
(Note 1)
Steady State Power Dissipation on
Infinite Heat Sink at T
L
=75ºC
Peak Forward Surge Current, 8.3ms
Single Half Sine Wave Unidirectional
Only (Note 2)
Maximum Instantaneous Forward
Voltage at 35A for Unidirectional
Only
Operating Junction and Storage
Temperature Range
Typical Thermal Resistance Junction
to Lead
Typical Thermal Resistance Junction
to Ambient
Symbol
P
PPM
P
D
I
FSM
V
F
T
J
, T
STG
R
θJL
R
θJA
Value
500
3.0
70
3.5
-65 to 175
20
75
Unit
W
W
A
V
°C
°C/W
°C/W
Notes:
1. Non-repetitive current pulse , per Fig. 4 and derated above T
J
(initial) =25
O
C per Fig. 3.
2. Measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 per
minute maximum.
Functional Diagram
Bi-directional
Datasheet
Resources
Samples
Cathode
Uni-directional
Anode
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Transient Voltage Suppression Diodes
Axial Leaded – 500W > SA series
Electrical Characteristics
(T =25°C unless otherwise noted)
A
Part
Number
(Uni)
SA5.0A
SA6.0A
SA6.5A
SA7
.0A
SA7
.5A
SA8.0A
SA8.5A
SA9.0A
SA10A
SA11A
SA12A
SA13A
SA14A
SA15A
SA16A
SA17A
SA18A
SA20A
SA22A
SA24A
SA26A
SA28A
SA30A
SA33A
SA36A
SA40A
SA43A
SA45A
SA48A
SA51A
SA54A
SA58A
SA60A
SA64A
SA70A
SA75A
SA78A
SA85A
SA90A
SA100A
SA110A
SA120A
SA130A
SA150A
SA160A
SA170A
SA180A
Part
Number
(Bi)
SA5.0CA
SA6.0CA
SA6.5CA
SA7
.0CA
SA7
.5CA
SA8.0CA
SA8.5CA
SA9.0CA
SA10CA
SA11CA
SA12CA
SA13CA
SA14CA
SA15CA
SA16CA
SA17CA
SA18CA
SA20CA
SA22CA
SA24CA
SA26CA
SA28CA
SA30CA
SA33CA
SA36CA
SA40CA
SA43CA
SA45CA
SA48CA
SA51CA
SA54CA
SA58CA
SA60CA
SA64CA
SA70CA
SA75CA
SA78CA
SA85CA
SA90CA
SA100CA
SA110CA
SA120CA
SA130CA
SA150CA
SA160CA
SA170CA
SA180CA
Reverse
Stand off
Voltage
V
R
(V)
5.0
6.0
6.5
7
.0
7
.5
8.0
8.5
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17
.0
18.0
20.0
22.0
24.0
26.0
28.0
30.0
33.0
36.0
40.0
43.0
45.0
48.0
51.0
54.0
58.0
60.0
64.0
70.0
75.0
78.0
85.0
90.0
100.0
110.0
120.0
130.0
150.0
160.0
170.0
180.0
Breakdown Voltage V
BR
(Volts) @ I
T
MIN
6.40
6.67
7
.22
7
.78
8.33
8.89
9.44
10.00
11.10
12.20
13.30
14.40
15.60
16.70
17
.80
18.90
20.00
22.20
24.40
26.70
28.90
31.10
33.30
36.70
40.00
44.40
47
.80
50.00
53.30
56.70
60.00
64.40
66.70
71.10
77
.80
83.30
86.70
94.40
100.00
111.00
122.00
133.00
144.00
167
.00
178.00
189.00
200.00
MAX
7
.00
7
.37
7
.98
8.60
9.21
9.83
10.40
11.10
12.30
13.50
14.70
15.90
17
.20
18.50
19.70
20.90
22.10
24.50
26.90
29.50
31.90
34.40
36.80
40.60
44.20
49.10
52.80
55.30
58.90
62.70
66.30
71.20
73.70
78.60
86.00
92.10
95.80
104.00
111.00
123.00
135.00
147
.00
159.00
185.00
197
.00
209.00
221.00
Test
Current
I
T
(mA)
10
10
10
10
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Maximum
Clamping
Voltage
V
C
@ I
PP
(V)
9.2
10.3
11.2
12.0
12.9
13.6
14.4
15.4
17
.0
18.2
19.9
21.5
23.2
24.4
26.0
27
.6
29.2
32.4
35.5
38.9
42.1
45.4
48.4
53.3
58.1
64.5
69.4
72.7
77
.4
82.4
87
.1
93.6
96.8
103.0
113.0
121.0
126.0
137
.0
146.0
162.0
177
.0
193.0
209.0
243.0
259.0
275.0
289.0
Maximum
Peak Pulse
Current I
pp
(A)
55.4
49.5
45.5
42.5
39.5
37
.5
35.4
33.1
30.0
28.0
25.6
23.7
22.0
20.9
19.6
18.5
17
.5
15.7
14.4
13.1
12.1
11.2
10.5
9.6
8.8
7
.9
7
.3
7
.0
6.6
6.2
5.9
5.4
5.3
5.0
4.5
4.2
4.0
3.7
3.5
3.1
2.9
2.6
2.4
2.1
2.0
1.9
1.7
Maximum
Reverse
Leakage I
R
@ V
R
(µA)
600
600
400
150
50
25
10
5
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Agency
Approval
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
For bidirectional type having V
R
of 10 volts and less, the I
R
limit is double.
For parts without A , the V
BR
is ± 10% and Vc is 5% higher than with A parts.
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Transient Voltage Suppression Diodes
Axial Leaded – 500W > SA series
I-V Curve Characteristics
Uni-directional
Bi-directional
I
pp
Vc V
BR
V
R
I
R
V
F
I
T
V
Vc V
BR
V
R
I
T
I
R
I
R
I
T
V
R
V
BR
Vc
V
I
pp
I
pp
P
PPM
V
R
V
BR
V
C
I
R
V
F
Peak Pulse Power Dissipation
-- Max power dissipation
Stand-off Voltage
-- Maximum voltage that can be applied to the TVS without operation
Breakdown Voltage
-- Maximum voltage that flows though the TVS at a specified test current (I
T
)
Clamping Voltage
-- Peak voltage measured across the TVS at a specified Ippm (peak impulse current)
Reverse Leakage Current
-- Current measured at V
R
Forward Voltage Drop for Uni-directional
Ratings and Characteristic Curves
(T =25°C unless otherwise noted)
A
Figure 1 - TVS Transients Clamping Waveform
Voltage Transients
Figure 2 - Peak Pulse Power Rating
100
TJ initial = Tamb
Voltage Across TVS
Voltage or Current
P
PPM
- Peak Pulse Power(KW)
10
Current Through TVS
1
0.1
0.001
Time
0.01
0.1
T
d
- Pulse Width(ms)
1
10
continues on next page.
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Transient Voltage Suppression Diodes
Axial Leaded – 500W > SA series
Ratings and Characteristic Curves
(T =25°C unless otherwise noted)
(Continued)
A
Figure 3 - Peak Pulse Power Derating Curve
100
Figure 4 - Pulse Waveform
150
tr=10µsec
Peak Value
IPPM
Peak Pulse Power (P
PP
) or Current (I
PP
)
Derating in Percentage %
75
I
PPM
- Peak Pulse Current, % I
RSM
TJ=25°C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of IPPM
100
50
Half Value
IPPM
IPPM
2
( )
10/1000µsec. Waveform
as defined by R.E.A
25
50
0
0
25
50
75
100
125
150
175
200
0
td
T
J
- Initial Junction Temperature (ºC)
0
1.0
2.0
t-Time (ms)
3.0
4.0
Figure 5 - Typical Junction Capacitance
10000
Bi-directional V=0V
Figure 6 - Typical Transient Thermal Impedance
100
1000
Uni-directional @ V
R
Uni-directional V=0V
Transient Thermal Impedance ( °C/W)
10
Cj (pF)
100
Bi-directional @ V
R
1
10
Tj=25C
f=1.0MHz
Vsig=50mVp-p
1
1.0
10.0
100.0
1000.0
0.1
0.01
0.1
1
10
100
1000
V
BR
- Reverse Breakdown Voltage (V)
TP - Pulse Duration (s)
Figure 7 - Maximum Non-Repetitive Forward Surge
Current Uni-Directional Only
120
IFSM - Peak Forward Surve Current(A)
Figure 8 - Peak Forward Voltage Drop vs Peak Forward
Current (Typical Values)
100.0
100
I
F
- Peak Forward Current(A)
80
60
40
20
0
1
10
Number of Cycles at 60 Hz
100
10.0
1.0
0.1
0.0
1.0
2.0
3.0
4.0
5.0
V
F
- Peak Forward Voltage(V)
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Transient Voltage Suppression Diodes
Axial Leaded – 500W > SA series
Soldering Parameters
Reflow Condition
- Temperature Min (T
s(min)
)
Pre Heat
- Temperature Max (T
s(max)
)
- Time (min to max) (t
s
)
Average ramp up rate (Liquidus Temp (T
A
)
to peak
T
S(max)
to T
A
- Ramp-up Rate
Reflow
- Temperature (T
A
) (Liquidus)
- Time (min to max) (t
s
)
Lead–free
assembly
150°C
Temperature (T)
t
p
Ramp-up
Critical Zone
T
L
to T
P
T
P
200°C
60 – 180 secs
3°C/second max
3°C/second max
217°C
60 – 150 seconds
260
+0/-5
°C
20 – 40 seconds
6°C/second max
8 minutes Max.
260°C
T
L
T
s(max)
t
L
T
s(min)
Ramp-down
Preheat
t
s
25˚C
t 25˚C to Peak
Time (t)
Peak Temperature (T
P
)
Time within 5°C of actual peak
Temperature (t
p
)
Ramp-down Rate
Time 25°C to peak Temperature (T
P
)
Do not exceed
Flow/Wave Soldering (Solder Dipping)
Peak Temperature :
Dipping Time :
Soldering :
265
O
C
10 seconds
1 time
Physical Specifications
Weight
Case
Polarity
Terminal
0.015oz., 0.4g
JEDEC DO-204AC (DO-15) molded
plastic body over passivated junction.
Color band denotes the cathode except
Bipolar.
Matte Tin axial leads, solderable per
JESD22-B102.
Environmental Specifications
High Temp. Storage
HTRB
Temperature Cycling
H3TRB
RSH
JESD22-A103
JESD22-A108
JESD22-A104
JESD22-A101
JESD22-B106
Dimensions
Dimensions
A
B
C
D
Inches
Min
1.000
0.230
0.028
0.104
Max
-
0.300
0.034
0.140
Millimeters
Min
25.40
5.80
0.71
2.60
Max
-
7
.60
0.86
3.60
D
A
Cathode Band
(for Uni-directional products only)
C
B
A
DO-204AC (DO-15)
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
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