Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
Copyright 2002
11-15-2002 REV 0
WWW.Microsemi .COM
HSMBJSAC5.0 thru HSMBJSAC50
LOW CAPACITANCE TRANSIENT
ABSORPTION ZENERTM
SCOTTSDALE DIVISION
DESCRIPTION APPEARANCE
The SAC series is a low capacitance transient voltage suppressor (TVS) in a
modified DO-214AA package rated at 500 Watts, providing board-level protection for
data or signal lines. The low capacitance of 50 pF minimizes the amount of signal
loss or deformation up through 70 MHz. If bi-directional protection is needed, two
devices in anti-parallel configuration are required as shown in Figure 4. The 500
watt rating described in Figures 1 and 3 provides lightning protection per IEC61000-
4-5 (Levels 1 and 2) as well as ESD and EFT protection per IEC61000-4-2 and
IEC61000-4-4 respectively. This economical molded surface mount package also
has very low thermal resistance due to its unique axial subassembly.
DO-214AA
See package notes
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES APPLICATIONS / BENEFITS
• 500 Watts Peak Pulse Power
• Low Capacitance
• Small Size
• Economical Series
• UL94V-0 Flammability Classification
• Robust axial subassembly in DO-214AA style package
• Low Capacitance for data-line protection to 70 MHz
• Low Level Lightning Protection per IEC61000-4-5 and
as described for surge ratings herein
• ESD and EFT protection per IEC61000-4-2 and
IEC61000-4-4 respectively
MAXIMUM RATINGS MECHANICAL AND PACKAGING
• Peak Pulse Power Dissipation at 25oC: 500 Watts @
10/1000 µs.
• Steady State Power Dissipation at TL = +75oC: 2.5
Watts.
• Clamping Speed (0 volts to V(BR) Min.) less than 5
nanoseconds.
• Operating and Storage Temperature: -65oC to +150oC.
• CASE: Void Free Transfer Molded Thermosetting Plastic
(see DO-214AA dimensions and notes)
• FINISH: All External Surfaces Are Corrosion Resistant and
Leads Solderable
• POLARITY: Cathode (TVS) Marked with Band.
• MARKING: Part number without HSMBJ prefix (ie. SAC5.0)
• WEIGHT: 0.1 Grams (Approx.)
ELECTRICAL CHARACTERISTICS @ 25oC
MICROSEMI
PART
NUMBER
(prefix all with
HSMBJ…)
REVERSE
STAND-OFF
VOLTAGE
(Note 1)
VWM
Volts
BREAKDOWN
VOLTAGE
@ I(BR) 1.0mA
V(BR)
Volts
Min.
MAXIMUM
STANDBY
CURRENT
@VWM
ID
µA
MAXIMUM
CLAMPING
VOLTAGE
IP = 5.0A*
VC
Volts
MAXIMUM
PEAK PULSE
CURRENT*
RATING
IPP
Amps
CAPACITANCE
@ O Volts
pF
WORKING
INVERSE
BLOCKING
VOLTAGE
VWIB
Volts
INVERSE
BLOCKING
LEAKAGE
CURRENT
@ VWIB
IIB mA
PEAK
INVERSE
BLOCKING
VOLTAGE
VPIB
Volts
SAC5.0
SAC6.0
5.0
6.0
7.60
7.90
300
300
10.0
11.2
44
41
50
50
75
75
1
1
100
100
SAC7.0
SAC8.0
7.0
8.0
8.33
8.89
300
100
12.6
13.4
38
36
50
50
75
75
1
1
100
100
SAC8.5
SAC10
8.5
10
9.44
11.10
50
5.0
14.0
16.3
34
29
50
50
75
75
1
1
100
100
SAC12
SAC15
12
15
13.30
16.70
5.0
5.0
19.0
23.6
25
20
50
50
75
75
1
1
100
100
SAC18
SAC22
18
22
20.00
24.40
5.0
5.0
28.8
35.4
15
14
50
50
75
75
1
1
100
100
SAC26
SAC36
26
36
28.90
40.0
5.0
5.0
42.3
60.0
11.1
8.6
50
50
75
75
1
1
100
100
SAC45
SAC50
45
50
50.00
55.50
5.0
5.0
77.0
88.0
6.8
5.8
50
50
150
150
1
1
200
200
*See Figure 3
Clamping Factor: Typically 1.4 @ full rated power, 1.20 @ 50% rated power. The ratio of the numerical value of VC to V(BR)..
HSMBJSAC5.0 thru
HSMBJSAC50
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
Copyright 2002
11-15-2002 REV 0
WWW.Microsemi .COM
HSMBJSAC5.0 thru HSMBJSAC50
LOW CAPACITANCE TRANSIENT
ABSORPTION ZENERTM
SCOTTSDALE DIVISION
Note 1: A transient voltage suppressor is normally selected according to voltage (VWM), which should be equal to or greater than the dc or continuous
peak operating voltage level.
Note 2: When pulse testing, test in TVS avalanche direction. Do not pulse in “forward” direction.
Note 3: For unidirectional applications, it is recommended that an additional low capacitance diode or rectifier be used in parallel with the TVS.
This added parallel diode will be facing the same polarity direction as the TVS and opposite that of the internal low capacitance diode in
Figure 4. This will prevent a reverse transient from damaging the internal low capacitance diode. The added diode or rectifier should also
have a higher reverse voltage rating than the TVS clamping voltage VC. Diode or rectifier ratings in excess of 100 volts with low
capacitance will provide this added protective function. If using two SAC devices in anti-parallel for bi-directional applications, this
protective feature is satisfied. The bi-directional TVS configuration in Figure 4 will result in twice the capacitance of a single SAC device.
OUTLINE AND CIRCUIT PACKAGE
DIMENSIONS
DIMENSIONS
INCHES MILLIMETERS
DIM MIN MAX MIN MAX
A .073 .087 1.85 2.21
B .160 .180 4.06 4.57
C .130 .155 3.30 3.94
D .205 .220 5.21 5.59
E .075 .130 1.91 3.30
F .030 .060 .76 1.52
G .006 .016 .15 .41
NOTE: Dimension E exceeds
the JEDEC outline in height as
shown
t
w – Pulse Width µs
FIGURE 1
TL – Lead Temperature – oC t – Time – msec
FIGURE 2 FIGURE 3 FIGURE 4
HSMBJSAC5.0 thru
HSMBJ
SAC50
% of Rated Power
Peak Power
(Single Pulse)
Average
Power
Lead Length = 3/8”
(2 DEVICES)
I
PP
–
Peak Pulse Current
-
%
I
PP
