SMAJ530, SMAJ550
www.vishay.com
Vishay General Semiconductor
Surface-Mount TRANSZORB® Transient Voltage Suppressors
FEATURES
• Glass passivated chip junction
Available
• Available in unidirectional polarity only
• Excellent clamping capability
• Very fast response time
• Low incremental surge resistance
• Meets MSL level 1, per
LF maximum peak of 260 °C
SMA (DO-214AC)
Cathode
J-STD-020,
Available
• AEC-Q101 qualified available
- Automotive ordering code: base P/NHM3
Anode
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
LINKS TO ADDITIONAL RESOURCES
3D 3D
TYPICAL APPLICATIONS
3D Models
Use in sensitive electronics protection against voltage
transients induced by inductive load switching and lighting
on ICs, MOSFET, signal lines of sensor units for consumer,
computer, industrial, automotive, and telecommunication.
PRIMARY CHARACTERISTICS
VBR (unidirectional)
530 V to 550 V
VWM
477 V, 495 V
PPPM
300 W
PD
2.5 W
IFSM (unidirectional only)
40 A
TJ max.
150 °C
MECHANICAL DATA
Polarity
Unidirectional
Package
SMA (DO-214AC)
Case: SMA (DO-214AC)
Molding compound meets UL 94 V-0 flammability rating
Base P/N-M3 - halogen-free, RoHS-compliant, and
industrial grade
Base P/NHM3_X - halogen-free, RoHS-compliant, and
AEC-Q101 qualified
(“_X” denotes revision code e.g. A, B, ...)
APPLICATION NOTES
• Respect thermal resistance (PCB layout) - as the
temperature coefficient also contributes to the clamping
voltage
Terminals: matte tin plated leads, solderable per
J-STD-002 and JESD 22-B102
M3 and HM3 suffix meet JESD 201 class 2 whisker test
Polarity: color band denotes cathode end
• Select minimum breakdown voltage, so you get
acceptable power dissipation and PCB tie point
temperature
• Devices with higher breakdown voltage will have a shorter
conduction time and will dissipate less power
• Clamping voltage is influenced by internal resistance design approximation is 7 V per 100 mA slope
• Keep temperature of TVS lower than TOPSwitch® as a
recommendation
• Maximum current is determined by the maximum TJ and
can be higher than 300 mA
• Contact supplier for
current arrangements
different
clamping
voltage/
• Minimum breakdown voltage can be customized for other
applications. Contact supplier
• TOPSwitch is a
Integrations, Inc.
registered
trademark
of
Power
Revision: 19-Apr-2021
Document Number: 88391
1
For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
SMAJ530, SMAJ550
www.vishay.com
Vishay General Semiconductor
MAXIMUM RATINGS (TA = 25 °C unless otherwise noted)
PARAMETER
SYMBOL
SMAJ530
SMAJ550
HD
SB
Device marking code
Peak pulse power dissipation (1)(2)(4) (fig. 1)
Power dissipation on infinite heatsink (3)
Operating junction and storage temperature range
UNIT
PPPM
300
W
PD
2.5
W
TJ, TSTG
-55 to +150
°C
Notes
(1) Non-repetitive current pulse, per fig. 3 and derated above 25 °C per fig. 2
(2) Mounted on 0.2" x 0.2" (5.0 mm x 5.0 mm) copper pads to each terminal
(3) Lead temperature at T = 75 °C
L
(4) Peak pulse power waveform is 10/1000 μs
ELECTRICAL CHARACTERISTICS (TA = 25 °C unless otherwise noted)
BREAKDOWN VOLTAGE
VBR AT IT
(V)
DEVICE TYPE
MIN.
TEST CURRENT
IT
(μA)
STAND-OFF VOLTAGE
VWM
(V)
SMAJ530
530
100
477
SMAJ550
550
100
495
ADDITIONAL CHARACTERISTICS (TA = 25 °C unless otherwise noted)
PARAMETER
TEST CONDITIONS
SYMBOL
Max. clamping voltage
400 mA, 10/1000 μs waveform
VC
760
V
Maximum DC reverse leakage current
VWM
ID
1.0
μA
Typical temperature coefficient
of VBR
650
mV/°C
0V
90
Typical capacitance (1)
SMAJ530
CJ
200 V
SMAJ550
UNIT
pF
7.5
Note
Measured at 1 MHz
(1)
THERMAL CHARACTERISTICS (TA = 25 °C unless otherwise noted)
PARAMETER
SYMBOL
SMAJ530
SMAJ550
Typical thermal resistance, junction to lead
RθJL
30
Typical thermal resistance, junction to ambient (1)
RθJA
120
UNIT
°C/ W
Note
(1) Mounted on minimum recommended pad layout
ORDERING INFORMATION (Example)
PREFERRED P/N
UNIT WEIGHT (g)
PREFERRED PACKAGE CODE
BASE QUANTITY
DELIVERY MODE
SMAJ530-M3/61
0.064
61
1800
7" diameter plastic tape and reel
0.064
5A
7500
13" diameter plastic tape and reel
0.064
H
1800
7" diameter plastic tape and reel
0.064
I
7500
13" diameter plastic tape and reel
SMAJ530-M3/5A
SMAJ530HM3_B/H
(1)
SMAJ530HM3_B/I (1)
Note
AEC-Q101 qualified
(1)
Revision: 19-Apr-2021
Document Number: 88391
2
For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
SMAJ530, SMAJ550
www.vishay.com
Vishay General Semiconductor
RATINGS AND CHARACTERISTICS CURVES (TA = 25 °C unless otherwise noted)
150
Non-Repetitive Pulse
Waveform shown in Fig. 3
TA = 25 °C
10
1
Peak Pulse Power (PPP) or Current (IPP)
Derating in Percentage, %
0.1
0.1 µs
IPPM - Peak Pulse Current, % IRSM
PPPM - Peak Pulse Power (kW)
100
TJ = 25 °C
Pulse Width (td)
is defined as the Point
where the Peak Current
decays to 50 % of IPPM
tr = 10 µs
Peak Value
IPPM
100
Half Value - IPP
IPPM
2
50
10/1000 µs Waveform
as defined by R.E.A.
td
0
1.0 µs
10 µs
100 µs
1.0 ms
10 ms
0
1.0
2.0
3.0
td - Pulse Width (s)
t - Time (ms)
Fig. 1 - Peak Pulse Power Rating Curve
Fig. 3 - Pulse Waveform
4.0
100
75
50
25
0
0
25
50
75
100
125
150
175
200
TJ - Initial Temperature (°C)
Fig. 2 - Pulse Power or Current vs. Initial Junction Temperature
Revision: 19-Apr-2021
Document Number: 88391
3
For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
SMAJ530, SMAJ550
www.vishay.com
Vishay General Semiconductor
PACKAGE OUTLINE DIMENSIONS in inches (millimeters)
SMA (DO-214AC)
Cathode Band
Mounting Pad Layout
0.110 (2.79)
0.100 (2.54)
0.065 (1.65)
0.049 (1.25)
0.177 (4.50)
0.157 (3.99)
0.012 (0.305)
0.006 (0.152)
0.060 (1.52)
MIN.
0.208 (5.28)
REF.
0.090 (2.29)
0.078 (1.98)
0.060 (1.52)
0.030 (0.76)
0.074 (1.88)
MAX.
0.066 (1.68)
MIN.
0.008 (0.203)
0 (0)
0.208 (5.28)
0.194 (4.93)
Revision: 19-Apr-2021
Document Number: 88391
4
For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Legal Disclaimer Notice
www.vishay.com
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Disclaimer
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Revision: 01-Jan-2023
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Document Number: 91000