PL
IA
N
Features
■
■
■
■
■
Applications
■
■
■
■
T
Surface Mount SMA package
Standoff Voltage: 8.5 to 58 volts
Power Dissipation: 400 watts
RoHS compliant*
AEC-Q101 compliant**
Protection of power buses
Protection of I/O interfaces
Overvoltage transient protection
Telecom, computer, industrial and
consumer electronics applications
*R
oH
S
CO
M
SMAJ-Q Transient Voltage Suppressor Diode Series
General Information
Bourns offers Transient Voltage Suppressor Diodes for surge and ESD protection applications, in compact chip package DO-214AC (SMA)
size format. The Transient Voltage Suppressor series offers a choice of Working Peak Reverse Voltage from 8.5 V up to 58 V. Typical fast
response times are less than 1.0 picosecond from 0 V to Breakdown Voltage.
Bourns
®
minimizes roll away.
Electrical Characteristics (@ T
A
= 25 °C Unless Otherwise Noted)
Parameter
Minimum Peak Pulse Power Dissipation (TP = 1 ms)
(Note 1,2)
Peak Forward Surge Current
8.3 ms Single Half Sine Wave Superimposed on Rated Load
(JEDEC Method)
(Note 3)
Operating Temperature Range
Storage Temperature Range
1.
2.
3.
Symbol
P
PK
I
FSM
T
J
T
STG
Value
400
40
-55 to +150
-55 to +150
Unit
Watts
Amps
°C
°C
Non-repetitive current pulse, per Pulse Waveform graph and derated above TA = 25 °C per Pulse Derating Curve.
Mounted on 5.0 mm
2
(0.03 mm thick) copper pads to each terminal.
8.3 ms Single Half-Sine Wave duty cycle = 4 pulses maximum per minute (unidirectional units only).
Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA:
Tel: +36 88 520 390 • Email: eurocus@bourns.com
The Americas:
Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
**”Q” part number suffix indicates AEC-Q101 compliance.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
SMAJ-Q Transient Voltage Suppressor Diode Series
Electrical Characteristics (@ T
A
= 25 °C Unless Otherwise Noted)
Unidirectional Device
Bidirectional Device
Breakdown Voltage
V
BR
(Volts)
Working
Peak
Reverse
Voltage
Maximum
Reverse
Leakage
@ V
RWM
Maximum
Reverse
Voltage
@ I
RSM
Maximum
Reverse
Surge
Current
Part No.
SMAJ12A-Q
SMAJ13A-Q
SMAJ14A-Q
SMAJ15A-Q
SMAJ16A-Q
SMAJ17A-Q
SMAJ18A-Q
SMAJ20A-Q
SMAJ22A-Q
SMAJ24A-Q
SMAJ26A-Q
SMAJ28A-Q
SMAJ30A-Q
SMAJ33A-Q
SMAJ36A-Q
SMAJ40A-Q
SMAJ43A-Q
SMAJ45A-Q
SMAJ48A-Q
SMAJ51A-Q
SMAJ54A-Q
SMAJ58A-Q
Notes: 1.
2.
Marking
IEQ
IGQ
IKQ
IMQ
IPQ
IRQ
ITQ
IVQ
IXQ
IZQ
JEQ
JGQ
JKQ
JMQ
JPQ
JRQ
JTQ
JVQ
JXQ
JZQ
REQ
RGQ
Part No.
SMAJ8.5CA-Q
SMAJ12CA-Q
SMAJ13CA-Q
SMAJ14CA-Q
SMAJ15CA-Q
SMAJ16CA-Q
SMAJ17CA-Q
SMAJ18CA-Q
SMAJ20CA-Q
SMAJ22CA-Q
SMAJ24CA-Q
SMAJ26CA-Q
SMAJ28CA-Q
SMAJ30CA-Q
SMAJ33CA-Q
SMAJ36CA-Q
SMAJ40CA-Q
SMAJ43CA-Q
SMAJ45CA-Q
SMAJ48CA-Q
SMAJ51CA-Q
SMAJ54CA-Q
SMAJ58CA-Q
Marking
TTQ
UEQ
UGQ
UKQ
UMQ
UPQ
URQ
UTQ
UVQ
UXQ
UZQ
VEQ
VGQ
VKQ
VMQ
VPQ
VRQ
VTQ
VVQ
VXQ
VZQ
WEQ
WGQ
Min.
9.44
13.3
14.4
15.6
16.7
17.8
18.9
20.0
22.2
24.4
26.7
28.9
31.1
33.3
36.7
40.0
44.4
47.8
50.0
53.3
56.7
60.0
64.4
Max.
10.4
14.7
15.9
17.2
18.5
19.7
20.9
22.1
24.5
26.9
29.5
31.9
34.4
36.8
40.6
44.2
49.1
52.8
55.3
58.9
62.7
66.3
71.2
@ I
T
(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
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
V
RWM
(V)
8.5
12
13
14
15
16
17
18
20
22
24
26
28
30
33
36
40
43
45
48
51
54
58
I
R
(μA)
20.0
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
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
V
RSM
(V)
14.4
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
I
RSM
(A)
27.8
20.1
18.6
17.2
16.4
15.3
14.5
13.7
12.3
11.3
10.3
9.5
8.8
8.3
7.5
6.9
6.2
5.8
5.5
5.2
4.9
4.6
4.3
denotes a 5 % tolerance unidirectional device.
denotes a 5 % tolerance bidirectional device.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
3312 - 2
Transient Voltage Suppressor Diode Series
SMAJ-Q
mm SMD Trimming Potentiometer
Performance Graphs
Peak Pulse Power Derating Curve
Peak Pulse Power Derating in Percent of
Peak Power or Current
100
Peak Forward Surge Current (Amps)
Maximum Non-Repetitive Surge Current
45
40
35
30
25
20
15
10
5
0
1
Pulse Width 8.3 ms
Single Half Sine-Wave
75
50
25
10 x 1000 Waveform as Defined
by R.E.A.
0
0
25
50
75
100
125
150
Ambient Temperature ( °C)
10
Number of Cycles at 60 Hz
100
Pulse Waveform
TR=10 µs
100
IP, Peak Pulse Current (%)
Peak value (IRSM)
Half value=
Typical Junction Capacitance
10000
Bidirectional
v-0v
CJ - Junction Capacitance (pF)
1000
Unidirectional
@ VR
100
TJ = 25 °C
f = 1.0 MHz
Vsig = 50 mVp-p
Unidirectional
v-0v
IRSM
2
Pulse width (TP)
is defined as that point
where the peak current
decays to 50 % of IPSM.
50
TA=25 °C
TP
10 x 1000 waveform
as defined by R.E.A.
10
Bidirectional
@ VR
0
0
1.0
2.0
T, Time (ms)
3.0
4.0
1
1
10
100
1000
VBR - Reverse Breakdown Voltage (V)
Pulse Rating Curve
10
Steady State Power Derating Curve
1.0
Steady State Power Dissipation (W)
PPPM - Peak Pulse Power (kW)
0.8
0.6
1.0
TA = 25 °C
Non-repetitive
Pulse Waveform
Shown in Pulse Waveform Graph
0.1
0.1 µs
1.0 µs
10 µs
100 µs
1.0 ms
10 ms
0.4
0.2
0.0
0
25
50
75
100
125
150
Td, Pulse Width (Seconds)
TL - Lead Temperature (°C)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
3312 - 2 mm SMD Trimming Potentiometer
SMAJ-Q Transient Voltage Suppressor Diode Series
Product Dimensions
A
Recommended Footprint
A
B
C
B
C
G
Dimension
A (Max.)
H
F
E
D
B (Min.)
C (Min.)
Dimension
A
B
C
D
E
F
G
H
SMA (DO-214AC)
3.99 - 4.50
(0.157 - 0.157)
2.54 - 2.79
(0.100 - 0.110)
1.25 - 1.65
(0.049 - 0.065)
0.15 - 0.31
(0.006 - 0.112)
4.93 - 5.28
(0.194 - 0.208)
0.203
MAX.
(0.008)
1.98 - 2.29
(0.078 - 0.090)
0.76 - 1.52
(0.030 - 0.060)
MM
(INCHES)
SMA (DO-214AC)
2.70
(0.106)
2.10
(0.083)
1.27
(0.050)
MM
(INCHES)
DIMENSIONS:
Case ...........................................Molded plastic per UL Class 94V-0
Polarity....................... Cathode band indicates unidirectional device
No cathode band indicates bidirectional device
How to Order
SMAJ 12 CA - Q
Package
SMAJ = SMA/DO-214AC
Working Peak Reverse Voltage
12 = 12 VRWM (Volts)
A = 5 % Tolerance Unidirectional Device
CA = 5 % Tolerance Bidirectional Device
Q = AEC-Q101 Compliant, 13-inch Reel
QH = AEC-Q101 Compliant, 7-inch Reel
DIMENSIONS:
Typical Part Marking
MANUFACTURER’S
TRADEMARK
DATE CODE:
Y = LAST
DIGIT OF
YEAR
WW = WEEK
NUMBER
YWW
XXX
Moisture Sensitivity Level ................................................................1
............................................................. 3B
DEVICE ID
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
CDDFN5-0504N - TVS/Steering Diode Array Series
SMAJ-Q Transient Voltage Suppressor Diode
Packaging Information
The product will be dispensed in tape and reel format (see diagram below).
P
0
P
1
d
E
Index Hole
T
120 °
F
W
B
D2
D1 D
P
Trailer
A
Device
C
Leader
End
.......
.......
10 pitches (min.)
.......
.......
.......
.......
.......
.......
10 pitches (min.)
W1
Start
DIMENSIONS:
MM
(INCHES)
Devices are packed in accordance with EIA 481
Direction of Feed
Item
Carrier Width
Carrier Length
Carrier Depth
Sprocket Hole
Reel Outside Diameter
Reel Inner Diameter
Feed Hole Diameter
Sprocket Hole Position
Punch Hole Position
Punch Hole Pitch
Sprocket Hole Pitch
Embossment Center
Overall Tape Thickness
Tape Width
Reel Width
Quantity per Reel
Symbol
A
B
C
d
D
D1
D2
E
F
P
P0
P1
T
W
W1
--
SMA (DO-214AC)
7-Inch Reel
2.90 ± 0.20
(0.114 ± 0.008)
5.50 ± 0.20
(0.217 ± 0.008)
2.26 ± 0.20
(0.089 ± 0.008)
1.50 ± 0.10
(0.061 ± 0.004)
178
(7.008)
50.0
MIN.
(1.969)
13.0 ± 0.20
(0.512 ± 0.008)
1.75 ± 0.10
(0.069 ± 0.004)
5.50 ± 0.05
(0.217 ± 0.002)
4.00 ± 0.10
(0.157 ± 0.004)
4.00 ± 0.10
(0.157 ± 0.004)
2.00 ± 0.05
(0.079 ± 0.002)
0.30 ± 0.10
(0.012 ± 0.004)
12.00 ± 0.30
(0.472 ± 0.012)
18.4
MAX.
(0.724)
1,000
5,000
330
(12.992)
13-Inch Reel
REV. 11/18
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
TI技术论坛
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
