Transient Voltage Suppression Diodes
Axial Leaded – 500W > SAC series
SAC Series
Uni-directional
Description
RoHS
The SAC Series is designed specifically to protect sensitive
electronic equipment from voltage transients induced by
lightning and other transient voltage events.
Features
• Glass passivated chip
junction in DO-15
Package
• 500W peak pulse power
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
• Typical failure mode is
short from over-specified
voltage or current
• Whisker test is
conducted based on
JEDECJESD201A 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)
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.
• EFT protection of data
lines in accordance with
IEC 61000-4-4 (IEC801-4)
• Low incremental surge
resistance
• 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
• Ideal for data line
applications
• Halogen free and RoHS
compliant
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E230531
Maximum Ratings and Thermal Characteristics
(T
A
=25°C unless otherwise noted)
Parameter
Peak Pulse Power Dissipation by
10/1000μs Test Waveform (Fig.1)
(Note 1)
Steady State Power Dissipation on
Infinite Heat Sink at T
L
=75ºC (Fig. 5)
Operating Junction and Storage
Temperature Range
Symbol
P
PPM
P
D
T
J
, T
STG
Value
500
3.0
-55 to 150
Unit
W
W
°C
Note:
1. Non-repetitive current pulse , per Fig. 3 and derated above T
A
= 25°C per Fig. 2.
Electrical Characteristics
.(T
A
=25°C unless otherwise noted)
Reverse
Stand off
Voltage V
R
(V)
5.0
6.0
7
.0
8.0
8.5
10.0
12.0
15.0
18.0
22.0
26.0
30.0
36.0
45.0
50.0
Part
Number
SAC5.0
SAC6.0
SAC7
.0
SAC8.0
SAC8.5
SAC10
SAC12
SAC15
SAC18
SAC22
SAC26
SAC30
SAC36
SAC45
SAC50
Breakdown Maximum Maximum Maximum Maximum
Peak
Junction
Voltage V
BR
Reverse Clamping
Pulse
Leakage Voltage at
Capacitance
Current
(V)
I
pp
=5.0A
I
R
@ V
R
@ 0 Volts
(Fig.3)
I
PP
(A)
MIN
(pF)
(µA)
V
C
(V)
7
.60
7
.90
8.33
8.89
9.44
11.10
13.30
16.70
20.00
24.40
28.90
33.30
40.00
50.00
55.50
300
300
300
100
50
5
1
1
1
1
1
1
1
1
1
10.0
11.2
12.6
13.4
14.0
16.3
19.0
23.6
28.8
35.4
42.3
48.6
60.0
77
.0
88.0
44.0
41.0
38.0
36.0
34.0
29.0
25.0
20.0
15.0
14.0
11.1
10.0
8.6
6.8
5.8
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
Working
Inverse
Blocking
Voltage
V
WIB
(V)
75
75
75
75
75
75
75
75
75
75
75
75
75
150
150
Inverse
Blocking
Leakage
Current at
I
IB
@ V
WIB
(mA)
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Peak
Inverse
Blocking
Voltage
V
PIB
(V)
100
100
100
100
100
100
100
100
100
100
100
100
100
200
200
Agency
Approval
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
Axial Leaded – 500W > SAC series
Transient Voltage Suppression Diodes
Ratings and Characteristic Curves
(T
A
=25°C unless otherwise noted)
Figure 1 - Peak Pulse Power Rating Curve
1000
Percentage of Rated Power (%)
Figure 2 - Pulse Derating Curve
100
Average Power
P
PPM
-Peak Pulse Power (kW)
100
75
10
50
Peak Power
(Single Pulse)
1
25
0.1
0.000001
0.00001
0.0001
0.001
0
0
25
t
d
-Pulse Width (Sec.)
50
75
100
125
150
T
L
Lead Temperature (ºC)
175
Figure 3 - 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
Figure 4 - AC Line Protection Application
100
Half Value
IPPM
IPPM
2
( )
10/1000µsec. Waveform
as defined by R.E.A
50
Low Capacitance
0
td
0
1.0
2.0
t-Time (ms)
3.0
4.0
Application Note:
Device must be used with two
units in parallel, opposite in polarity as shown in
circuit for AC signal line protection.
Figure 5 - Steady State Power Derating Curve
3.5
Steady State Power dissipation (W)
3
2.5
2
1.5
1
0.5
0
0
25
50
75
100
125
150
175 200
T
L
-Lead Temperature
(ºC)
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
Transient Voltage Suppression Diodes
Axial Leaded – 500W > SAC 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
T
P
t
p
Ramp-up
Critical Zone
T
L
to T
P
150°C
Temperature (T)
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
D
C
A
B
DO-204AC (DO-15)
DO-204AC (DO-15)
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
A
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
Axial Leaded – 500W > SAC series
Transient Voltage Suppression Diodes
Part Numbering System
Part Marking System
SAC xxx X
OPTION CODE:
BLANK
Reel Tape
-B
Bulk Packaging
V
R
VOLTAGE CODE
(Refer to the Electrical Characteristics table)
Littelfuse Logo
F
Cathode Band
YYWW
Trace Code Marking
YY:Year Code
WW: Week Code
SACXXX
Product Type
SERIES CODE
Packaging
Part Number
SACxxxXX
SACxxxXX-B
Component Package
DO-204AC
DO-204AC
Quantity
4000
1000
Packaging Option
Tape & Reel
BULK
Packaging Specification
EIA STD RS-296
Littelfuse Spec.
Schematic
Transient
Voltage
Suppressor
Diode
Tape and Reel Specification
2.56
(65.0)
Off Center
either side
2.063+0.079/-0.039
(53.0+2.0/-1.0)
0.028(0.7)
Additional Information
0.197+/-0.020
(5.0+/- 0.5)
0.047
(1.2)
0.236
(6.0)
Datasheet
Resources
Samples
13.0
(330.2)
3.0
(76.2)
Dimensions are in
inches/mm
0.68
(17.27)
2.75
(69.85)
Recess Depth Max. 0.75 (19.05)
Direction of Feed
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
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