Transient Voltage Suppression Diodes
Axial Leaded – 500W > SA series
SA Series
Bi-directional
Uni-directional
Agency Approvals
AGENCY AGENCY FILE NUMBER
E128662/E230531
Maximum Ratings and Thermal Characteristics
(T
=25°C unless otherwise noted)
A
Parameter Symbol Value Unit
Peak Pulse Power Dissipation by
10/1000μs Test Waveform (Fig.2)
(Note 1)
Steady State Power Dissipation on
Infinite Heat Sink at T
Peak For ward 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
Notes:
1. Non-repetitive current pulse , per Fig. 4 and derated above T
2. Measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 per
minute maximum.
<3.5V for devices of V
3. V
F
=75ºC (Fig. 6)
L
_< 200V and VF<5.0V for devices of VBR _> 201V.
BR
P
PPM
P
D
I
FSM
V
F
, T
T
J
R
uJL
R
uJA
500 W
3.5/5.0 V
-55 to 150 °C
STG
= 25°C per Fig. 3.
A
3.0 W
70 A
20 °C/W
75 °C/W
RoHS
Description
The SA Series is designed specifically to protect sensitive
electronic equipment from voltage transients induced by
lightning and other transient voltage events.
Features
•
VBR @TJ= VBR@25°C × (1+αT
x (TJ - 25))
(αT: Temperature Coefficient)
• Glass passivated chip
junction in DO-15 Package
• 500W peak pulse
capability at 10/1000μs
waveform, repetition rate
(duty cycles):0.01%
• 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
15kV(Air), 8kV (Contact).
• ESD protection of data
lines in accordance with
IEC 61000-4-2 (IEC801-2)
• EFT protection of data
lines in accordance with
IEC 61000-4-4 (IEC801-4)
• Low incremental surge
resistance
• Typical I
less than 1μA
R
above 13V
• High temperature
soldering guaranteed:
260°C/40 seconds /
0.375”,(9.5mm) lead
length, 5 lbs., (2.3kg)
tension
• Plastic package has
underwriters laboratory
flammability classification
94V-O
• Matte tin lead–free plated
• Halogen free and RoHS
compliant
Applications
TVS devices are ideal for the protection of I/O interfaces,
V
bus and other vulnerable circuits used in telecom,
CC
computer, industrial and consumer electronic applications.
Functional Diagram
Bi-directional
Cathode
Uni-directional
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
Anode
Additional Information
Datasheet
Resources
Samples
Transient Voltage Suppression Diodes
Axial Leaded – 500W > SA series
Electrical Characteristics (T
Part
Number
(Uni)
Part
Number
(Bi)
=25°C unless otherwise noted)
A
Reverse
Stand off
Voltage
V
(V)
R
Breakdown Voltage
V
MIN MAX
(Volts) @ I
BR
IT
Maximum
Clamping
Voltage
V
@ I
C
(V)
Test
Current
T
(mA)
PP
Maximum
Peak Pulse
Current I
(A)
pp
Maximum
Reverse
Leakage I
@ V
(µA)
SA5.0A SA5.0CA 5.0 6.40 7. 0 0 10 9.2 55.4 600 X
SA6.0A SA6.0CA 6.0 6.67 7.37 10 10.3 49.5 600 X
SA6.5A SA6.5CA 6.5 7.22 7.98 10 11.2 45.5 400 X
SA7.0A SA7.0CA 7. 0 7.78 8.60 10 12.0 42.5 15 0 X
SA7.5A SA7.5CA 7. 5 8.33 9.21 1 12.9 39.5 50 X
SA8.0A SA8.0CA 8.0 8.89 9.83 1 13.6 37.5 25 X
SA8.5A SA8.5CA 8.5 9.44 10.40 1 14.4 35.4 10 X
SA9.0A SA9.0CA 9.0 10.00 11. 10 1 15.4 33.1 5 X
SA10A SA10CA 10.0 11.10 12.30 1 17. 0 30.0 3 X
SA11A SA11CA 11. 0 12.20 13.50 1 18.2 28.0 1 X
SA12A SA12CA 12.0 13.30 14.70 1 19.9 25.6 1 X
SA13A SA13CA 13.0 14.40 15.90 1 21.5 23.7 1 X
SA14A SA14CA 14.0 15.60 17.20 1 23.2 22.0 1 X
SA15A SA15CA 15.0 16.70 18.50 1 24.4 20.9 1 X
SA16A SA16CA 16.0 17.80 19.70 1 26.0 19.6 1 X
SA17A SA17CA 1 7. 0 18.90 20.90 1 27.6 18.5 1 X
SA18A SA18CA 18.0 20.00 22.10 1 29.2 1 7. 5 1 X
SA20A SA20CA 20.0 22.20 24.50 1 32.4 15.7 1 X
SA22A SA22CA 22.0 24.40 26.90 1 35.5 14.4 1 X
SA24A SA24CA 24.0 26.70 29.50 1 38.9 13.1 1 X
SA26A SA26CA 26.0 28.90 31.90 1 42.1 12.1 1 X
SA28A SA28CA 28.0 31.10 34.40 1 45.4 11. 2 1 X
SA30A SA30CA 30.0 33.30 36.80 1 48.4 10.5 1 X
SA33A SA33CA 33.0 36.70 40.60 1 53.3 9.6 1 X
SA36A SA36CA 36.0 40.00 44.20 1 58.1 8.8 1 X
SA40A SA40CA 40.0 44.40 49.10 1 64.5 7. 9 1 X
SA43A SA43CA 43.0 47.80 52.80 1 69.4 7. 3 1 X
SA45A SA45CA 45.0 50.00 55.30 1 72.7 7. 0 1 X
SA48A SA48CA 48.0 53.30 58.90 1 77.4 6.6 1 X
SA51A SA51CA 51.0 56.70 62.70 1 82.4 6.2 1 X
SA54A SA54CA 54.0 60.00 66.30 1 87.1 5.9 1 X
SA58A SA58CA 58.0 64.40 71.20 1 93.6 5.4 1 X
SA60A SA60CA 60.0 66.70 73.70 1 96.8 5.3 1 X
SA64A SA64CA 64.0 71.10 78.60 1 103.0 5.0 1 X
SA70A SA70CA 70.0 77.80 86.00 1 113.0 4.5 1 X
SA75A SA75CA 75.0 83.30 92.10 1 121.0 4.2 1 X
SA78A SA78CA 78.0 86.70 95.80 1 126.0 4.0 1 X
SA85A SA85CA 85.0 94.40 104.00 1 137.0 3.7 1 X
SA90A SA90CA 90.0 100.00 111.0 0 1 146.0 3.5 1 X
SA100A SA100CA 100.0 111.0 0 123.00 1 162.0 3.1
1 X
SA110A SA110CA 110.0 122.00 135.00 1 177.0 2.9 1 X
SA120A SA120CA 120.0 133.00 147.00 1 193.0 2.6 1 X
SA130A SA130CA 130.0 144.00 159.00 1 209.0 2.4 1 X
SA150A SA150CA 150.0 167.00 185.00 1 243.0 2.1 1 X
SA160A SA160CA 160.0 178.00 197.00 1 259.0 2.0 1 X
SA170A SA170CA 170.0 189.00 209.00 1 275.0 1. 9 1 X
SA180A SA180CA 180.0 200.00 233.00 1 289.0 1.7 1 X
For bidirectional type having VR of 10 volts and less, the IR limit is double.
For parts without A , the V
is + 10% and Vc is 5% higher than with A parts.
BR
R
R
Agency
Approval
Specifications are subject to change without notice.
© 2014 Littelfuse, Inc.
Revised: 01/24/14
Transient Voltage Suppression Diodes
Voltage Transients
Time
Voltage Across TVS
Current Through TVS
Voltage or Current
P
- Peak Pulse Power (KW)
10ms
30
Axial Leaded – 500W > SA series
I-V Curve Characteristics
Uni-directional
BR
V
Vc
VR
IR
VF
IT
V
Bi-directional
BR
V
Vc
VR
Ipp
P
Peak Pulse Power Dissipation -- Max power dissipation
PPM
V
Stand-off Voltage -- Maximum voltage that can be applied to the TVS without operation
R
V
Breakdown Voltage -- Maximum voltage that flows though the TVS at a specified test current (IT)
BR
V
Clamping Voltage -- Peak voltage measured across the suppressor at a specified Ippm (peak impulse current)
C
I
Reverse Leakage Current -- Current measured at V
R
V
Forward Voltage Drop for Uni-directional
F
Ratings and Characteristic Curves (T
Figure 1 - TVS Transients Clamping Waveform
R
=25°C unless otherwise noted)
A
Figure 2 - Peak Pulse Power Rating
Ipp
IT
IR
IR
IT
VR
BR
V
V
Vc
Ipp
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
PPM
10
0.1
1
01.µs
Exponential
P
T
d
P
T
d
P
T
d
1.0µs 10µs
Non-repetitive Pulse
Waveform Shown in Fig. 3
TA=25ûC
Half SINE
Square
100µs
td- Pulse Width (sec.)
1.0ms
continues on next page.
Transient Voltage Suppression Diodes
100
175
T
Peak Pulse Power (P
) or Current (I
)
Cj (pF)
Tj
f=
Vs
Uni- directional V=0V
Bi-directional V=0V
Axial Leaded – 500W > SA series
Ratings and Characteristic Curves (T
=25°C unless otherwise noted) (Continued)
A
Figure 3 - Pulse Derating Curve Figure 4 - Pulse Waveform
PP
80
60
PP
40
Derating in Percentage %
20
0
0255075 100 125 150
-Ambient temperature (ºC)
A
150
RSM
Peak Value
100
I
PPM
50
- Peak Pulse Current, % I
PPM
I
t
tr=10µsec
0
d
0
1.0 2.0 3.0 4.0
Half Value
I
I
PPM
( )
TJ=25°C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of I
PPM
2
10/1000µsec. Waveform
as defined by R.E.A
t-Time (ms)
Figure 5 - Typical Junction Capacitance Figure 6 - Steady State Power Derating Curve
10000
1000
Uni-directional @ V
R
100
Bi-directional @ V
10
=25C
1.0MHz
ig=50mVp-p
R
1
1.0 10.0 100.0 1000.0
VBR - Reverse Breakdown Voltage (V)
3.5
3
2.5
2
1.5
1
L = 0.375” (9.5mm)
Lead Lengths
0.5
Steady State Power Di ssipation (W)
0
0255075100 125150 175200
TL - Lead Te mperature(ºC)
PPM
Figure 7 - Maximum Non-Repetitive Forward Surge
Current Uni-Directional Only
80
70
60
50
40
(A)
30
20
- Peak Forward Surge Current
FSM
10
I
0
110 100
Number of Cycles at 60 Hz
Specifications are subject to change without notice.
© 2014 Littelfuse, Inc.
Revised: 01/24/14
Transient Voltage Suppression Diodes
Cathode Band
Axial Leaded – 500W > SA series
Soldering Parameters
Reflow Condition Lead–free assembly
Pre Heat
- Temperature Min (T
- Temperature Max (T
) 150°C
s(min)
) 200°C
s(max)
- Time (min to max) (ts) 60 – 180 secs
Average ramp up rate (Liquidus Temp
(T
) to peak
L
to TL - Ramp-up Rate 3°C/second max
T
S(max)
Reflow
- Temperature (TL) (Liquidus) 217°C
- Time (min to max) (ts) 60 – 150 seconds
Peak Temperature (TP) 260
Time within 5°C of actual peak
Temperature (t
)
p
3°C/second max
+0/-5
°C
20 – 40 seconds
Ramp-down Rate 6°C/second max
Time 25°C to peak Temperature (T
) 8 minutes Max.
P
Do not exceed 280°C
Physical Specifications
Weight 0.015oz., 0.4g
Case
JEDEC DO-204AC (DO-15) molded
plastic body over passivated junction.
t
T
P
Ramp-up Critical Zone
T
L
T
s(max)
T
s(min)
Temperature (T)
25˚C
t
s
Preheat
t 25˚C to Peak
Time (t)
p
Flow/Wave Soldering (Solder Dipping)
Peak Temperature : 265OC
Dipping Time : 10 seconds
Soldering : 1 time
Environmental Specifications
High Temp. Storage JESD22-A103
HTRB JESD22-A108
T
T
to
L
t
L
P
Ramp-down
Polarity
Terminal
Dimensions
D
A
Color band denotes the cathode except
Bipolar.
Matte Tin axial leads, solderable per
JESD22-B102.
(for Uni-directional products only)
B
A
DO-204AC (DO-15)
C
Temperature Cycling JESD22-A104
H3TRB JESD22-A101
RSH JESD22-B106
Dimensions
Inches Millimeters
Min Max Min Max
A 1.000 - 25.40 -
B 0.230 0.300 5.80 7.60
C 0.028 0.034 0.71 0.86
D 0.104 0.140 2.60 3.60
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
Transient Voltage Suppression Diodes
OPTION CODE:
BLANK Reel Tape
-B Bulk Packaging
SERIES CODE
SAxxx XX X
TYPE CODE:
A Uni-Directional (5%
V
BR
Voltage Tolerance)
CA Bi-Directional (5%
V
BR
Voltage Tolerance)
V
BR
VOLTA GE CODE
(Refer to the Electrical Characteristics table)
F
SAXXX
YYWW
Trace Code Marking
YY:Year Code
WW: Week Code
Product Type
Littelfuse Logo
Cathode Band
(for uni-directional
products only)
R
Axial Leaded – 500W > SA series
Part Numbering System
Part Marking System
Packaging
Part Number Component Package Quantity Packaging Option Packaging Specification
SAxxxXX DO-204AC 4000 Tape & Reel EIA STD RS-296
SAxxxXX-B DO-204AC 1000 Bulk Littelfuse Spec.
Tape and Reel Specification
2.56
(65.0)
0.197+/-0.020
(5.0+/- 0.5)
13.0
(330.2)
3.0
(76.2)
0.68
(17. 27)
2.75
(69.85)
ecess Depth Max. 0.75 (19.05)
Off Center
either side
0.028(0.7)
0.047
(1.2)
Dimensions are in
inches/mm
Direction of Feed
2.063+0.079/-0.039
(53.0+2.0/-1.0)
0.236
(6.0)
Specifications are subject to change without notice.
© 2014 Littelfuse, Inc.
Revised: 01/24/14
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