Transient Voltage Suppression Diodes
Axial Leaded – 500W > SA series
SA Series
Description
Bi-directional
RoHS
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
•
V
BR
@T
J
= V
BR
@25°C × (1+
α
T
• ESD protection of data
lines in accordance with
x (T
J
- 25))
IEC 61000-4-2 (IEC801-2)
(αT: Temperature Coefficient)
• EFT protection of data
• Glass passivated chip
lines in accordance with
junction in DO-15 Package
IEC 61000-4-4 (IEC801-4)
• 500W peak pulse
• Low incremental surge
capability at 10/1000μs
resistance
waveform, repetition rate
• Typical I
R
less than 1μA
(duty cycles):0.01%
above 13V
• Fast response time:
• High temperature
typically less than 1.0ps
soldering guaranteed:
from 0 Volts to BV min
260°C/40 seconds /
• Excellent clamping
0.375”
,(9.5mm) lead
capability
length, 5 lbs., (2.3kg)
• Typical failure mode is
tension
short from over-specified
• Plastic package has
voltage or current
underwriters laboratory
• Whisker test is conducted
flammability classification
based on JEDEC
94V-O
JESD201A per its table 4a
• Matte tin lead–free plated
and 4c
• Halogen free and RoHS
• IEC-61000-4-2 ESD
compliant
15kV(Air), 8kV (Contact).
Applications
T
J
, T
STG
R
uJL
R
uJA
-55 to 150
20
75
°C
°C/W
°C/W
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E128662/E230531
Maximum Ratings and Thermal Characteristics
(T
A
=25°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 (Fig. 6)
Peak Forward Surge Current, 8.3ms
Single Half Sine Wave Unidirectional
Only (Note 2)
Maximum Instantaneous Forward
Voltage at 35A for Unidirectional
Only (Note 3)
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
Value
500
3.0
70
3.5/5.0
Unit
W
W
A
V
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.
Notes:
1. Non-repetitive current pulse , per Fig. 4 and derated above T
A
= 25°C per Fig. 3.
2. Measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 per
minute maximum.
_
_
3. V
F
<3.5V for devices of V
BR
<
200V and V
F
<5.0V for devices of V
BR
>
201V.
Functional Diagram
Additional Information
Bi-directional
Datasheet
Resources
Samples
Cathode
Uni-directional
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
Anode
Axial Leaded – 500W > SA series
Transient Voltage Suppression Diodes
Electrical Characteristics
(T
A
=25°C unless otherwise noted)
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
233.00
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.
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
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 suppressor 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
A
=25°C unless otherwise noted)
Figure 1 - TVS Transients Clamping Waveform
Voltage Transients
Figure 2 - Peak Pulse Power Rating
30
P
PPM
- Peak Pulse Power (KW)
10
Non-repetitive Pulse
Waveform Shown in Fig. 3
TA=25ûC
Voltage Across TVS
Voltage or Current
Current Through TVS
1
P
P
P
Exponential
Td
Td
Td
Half SINE
Square
0.1
01.µs
Time
1.0µs
10µs
100µs
1.0ms
10ms
td- Pulse Width (sec.)
continues on next page.
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
Axial Leaded – 500W > SA series
Transient Voltage Suppression Diodes
Ratings and Characteristic Curves
(T
A
=25°C unless otherwise noted)
(Continued)
Figure 3 - Pulse Derating Curve
100
Peak Pulse Power (P
PP
) or Current (I
PP
)
Derating in Percentage %
80
60
40
20
0
Figure 4 - Pulse Waveform
150
I
PPM
- Peak Pulse Current, % I
RSM
tr=10µsec
Peak Value
IPPM
TJ=25°C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of IPPM
100
Half Value
IPPM
IPPM
2
( )
10/1000µsec. Waveform
as defined by R.E.A
50
0
25
50
75
100
125
150
175
T
A
-Ambient temperature (ºC)
0
td
0
1.0
2.0
t-Time (ms)
3.0
4.0
Figure 5 - Typical Junction Capacitance
10000
Figure 6 - Steady State Power Derating Curve
3.5
Steady State Power Dissipation (W)
Bi-directional V=0V
Uni-directional V=0V
1000
Uni-directional @ V
R
3
2.5
2
1.5
1
0.5
0
L = 0.375” (9.5mm)
Lead Lengths
Cj (pF)
100
Bi-directional @ V
R
10
Tj=25C
f=1.0MHz
Vsig=50mVp-p
1
1.0
10.0
100.0
1000.0
V
BR
- Reverse Breakdown Voltage (V)
0
25
50
75
100
125
150
175
200
T
L
- Lead Temperature(ºC)
Figure 7 - Maximum Non-Repetitive Forward Surge
Current Uni-Directional Only
80
I
FSM
- Peak Forward Surge Current
(A)
70
60
50
40
30
20
10
0
1
10
Number of Cycles at 60 Hz
100
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
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
L
) to peak
T
S(max)
to T
L
- Ramp-up Rate
Reflow
- Temperature (T
L
) (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.
280°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
Cathode Band
(for Uni-directional products only)
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
C
B
A
DO-204AC (DO-15)
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
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