Transient
Voltage
Suppressors
SMAJ Series
Circuit Protection
System
Revision:DEC-16
Please refer to http://www.ruilon.com.cn for current information.
Transient Voltage Suppressors - SMAJ Series
Features
UNI
• Fast response time
• Low incremental surge resistance
• Matte tin lead–free Plated
• Halogen ree and RoHS compliant
• Typical IR less than 1µA above 10V
BI
• Compatible with industrial standard package DO-214AC
• For surface mounted applications to optimize board space
• 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)
• 400W peak pulsepower capability at 10/1000μs waveform,repetition rate
(duty cycle): 0.01%
BI
Cathode
• High temperature soldering : 260°C/ 40 seconds at terminals
Anode
UNI
Description
The SMAJ series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning
and other transient voltage events.
Mechanical Characteristics
Rating
Symbol
Value
Units
PPPM
400
Watts
PD
3.3
Watts
IFSM
40
Amps
VF
3.5/6.5
V
TJ,TSTG
-55°C to 150°C
°C
Typical Thermal Resistance Junction to Lead
RuJL
30
°C/W
Typical Thermal Resistance Junction to Ambient
RuJA
120
°C/W
Peak Pulse Power Dissipation at TA=25ºC by 10/1000µs
Waveform (Fig.2)(Note 1), (Note 2)
Power Dissipation on Infinite Heat Sink at TA=50°C
Peak Forward Surge Current, 8.3ms Single Half Sine Wave
(Note 3)
Maximum Instantaneous Forward Voltage at 25A for
Unidirectional Only (Note 4)
Operating junction and Storage Temperature Range.
Notes:
1. Non-repetitive current pulse, per Fig.4 and derated above TA=25ºC per Fig. 3.
2. Mounted on 5.0x5.0mm copper pad to each terminal.
3. Measured on 8.3ms single half sine wave or equivalent square wave for unidirectional device only.
4. VF< 3.5V for VBR ≤ 200V and VF< 6.5V for VBR ≥ 201V
Circuit Protection
System
Revision:DEC-16
Please refer to http://www.ruilon.com.cn for current information.
Page:1
Transient Voltage Suppressors - SMAJ Series
Electriacl Characteristics
Type Number
UNI
SMAJ5.0A
SMAJ6.0A
SMAJ6.5A
SMAJ7.0A
SMAJ7.5A
SMAJ8.0A
SMAJ8.5A
SMAJ9.0A
SMAJ10A
SMAJ11A
SMAJ12A
SMAJ13A
SMAJ14A
SMAJ15A
SMAJ16A
SMAJ17A
SMAJ18A
SMAJ20A
SMAJ22A
SMAJ24A
SMAJ26A
SMAJ28A
SMAJ30A
SMAJ33A
SMAJ36A
SMAJ40A
SMAJ43A
SMAJ45A
SMAJ48A
SMAJ51A
SMAJ54A
SMAJ58A
SMAJ60A
SMAJ64A
SMAJ70A
SMAJ75A
SMAJ78A
SMAJ85A
SMAJ90A
SMAJ100A
SMAJ110A
SMAJ120A
SMAJ130A
SMAJ150A
SMAJ160A
SMAJ170A
SMAJ180A
SMAJ190A
SMAJ200A
SMAJ210A
SMAJ220A
BI
SMAJ5.0CA
SMAJ6.0CA
SMAJ6.5CA
SMAJ7.0CA
SMAJ7.5CA
SMAJ8.0CA
SMAJ8.5CA
SMAJ9.0CA
SMAJ10CA
SMAJ11CA
SMAJ12CA
SMAJ13CA
SMAJ14CA
SMAJ15CA
SMAJ16CA
SMAJ17CA
SMAJ18CA
SMAJ20CA
SMAJ22CA
SMAJ24CA
SMAJ26CA
SMAJ28CA
SMAJ30CA
SMAJ33CA
SMAJ36CA
SMAJ40CA
SMAJ43CA
SMAJ45CA
SMAJ48CA
SMAJ51CA
SMAJ54CA
SMAJ58CA
SMAJ60CA
SMAJ64CA
SMAJ70CA
SMAJ75CA
SMAJ78CA
SMAJ85CA
SMAJ90CA
SMAJ100CA
SMAJ110CA
SMAJ120CA
SMAJ130CA
SMAJ150CA
SMAJ160CA
SMAJ170CA
SMAJ180CA
SMAJ190CA
SMAJ200CA
SMAJ210CA
SMAJ220CA
Device Marking
Code
UNI
HE
HG
HK
HM
HP
HR
HT
HV
HX
HZ
IE
IG
IK
IM
IP
IR
IT
IV
IX
IZ
JE
JG
JK
JM
JP
JR
JT
JV
JX
JZ
RE
RG
RK
RM
RP
RR
RT
RV
RX
RZ
SE
SG
SK
SM
SP
SR
ST
SV
SX
SZ
ZE
BI
TE
TG
TK
TM
TP
TR
TT
TV
TX
TZ
UE
UG
UK
UM
UP
UR
UT
UV
UX
UZ
VE
VG
VK
VM
VP
VR
VT
VV
VX
VZ
WE
WG
WK
WM
WP
WR
WT
WV
WX
WZ
XE
XG
XK
XM
XP
XR
XT
XV
XX
XZ
YE
Circuit Protection
System
Reverse
Stand-Off
Voltage
VRWM(V)
5.0
6.0
6.5
7.0
7.5
8.0
8.5
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
20.0
22.0
24.0
26.0
28.0
30.0
33.0
36.0
40.0
43.0
45.0
48.0
51.0
54.0
58.0
60.0
64.0
70.0
75.0
78.0
85.0
90.0
100.0
110.0
120.0
130.0
150.0
160.0
170.0
180.0
190.0
200.0
210.0
220.0
Breakdown
Voltage@IT
Test
Current
VBR MIN.(V) VBR MAX.(V)
6.40
7.25
6.67
7.67
7.22
8.30
7.78
8.95
8.33
9.58
8.89
10.23
9.44
10.82
10.00
11.50
11.10
12.80
12.20
14.00
13.30
15.30
14.40
16.50
15.60
17.90
16.70
19.20
17.80
20.50
18.90
21.70
20.00
23.30
22.20
25.50
24.40
28.00
26.70
30.70
28.90
33.20
31.10
35.80
33.30
38.30
36.70
42.20
40.00
46.00
44.40
51.10
47.80
54.90
50.00
57.50
53.30
61.30
56.70
65.20
60.00
69.00
64.40
74.10
66.70
76.70
71.10
81.80
77.80
89.50
83.30
95.80
86.70
99.70
94.40
108.20
100.0
115.50
111.0
128.0
122.0
140.5
133.0
153.0
144.0
165.5
167.0
192.6
178.0
205.0
189.0
217.5
198.0
230.4
209.0
243.2
220.0
256.0
231.0
268.8
242.0
281.6
IT(mA)
10
10
10
10
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Maximum
Peak Pulse
Clamping
Current
Voltage@IPP
VC(V)
IPP(A)
9.2
43.5
10.3
38.8
11.2
35.7
12.0
33.3
12.9
31.0
13.6
29.4
14.4
27.7
15.4
26.0
17.0
23.5
18.2
22.0
19.9
20.1
21.5
18.6
23.2
17.2
24.4
16.4
26.0
15.3
27.6
14.5
29.2
13.7
32.4
12.3
35.5
11.2
38.9
10.3
42.1
9.5
45.4
8.8
48.4
8.3
53.3
7.5
58.1
6.9
64.5
6.2
69.4
5.7
72.7
5.5
77.4
5.2
82.4
4.9
87.1
4.6
93.6
4.3
96.8
4.1
103.0
3.9
113.0
3.5
121.0
3.3
126.0
3.2
137.0
2.9
146.0
2.7
162.0
2.5
177.0
2.3
193.0
2.0
209.0
1.9
243.0
1.6
259.0
1.5
275.0
1.4
292.0
1.3
308.0
1.3
324.0
1.2
340.0
1.2
356.0
1.1
Reverse
Leakage
@VRWM
IR(µA)
800
800
500
200
100
50
20
10
5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Revision:DEC-16
Please refer to http://www.ruilon.com.cn for current information. Page:2
Transient Voltage Suppressors - SMAJ Series
Electriacl Characteristics
Reverse
Breakdown
Stand-Off
Voltage@IT
Voltage
UNI
BI
UNI
BI
VRWM(V)
VBR MIN.(V) VBR MAX.(V)
SMAJ250A SMAJ250CA
ZG
YG
250.0
279.0
309.0
SMAJ300A SMAJ300CA
ZK
YK
300.0
335.0
371.0
SMAJ350A SMAJ350CA
ZM
YM
350.0
391.0
432.0
SMAJ400A SMAJ400CA
ZP
YP
400.0
447.0
494.0
SMAJ440A SMAJ440CA
ZR
YR
440.0
492.0
543.0
Notes: For bidirectional type having VR of 10V and less, the IR limit is double.
Type Number
Device Marking
Code
Maximum
Peak Pulse
Clamping
Current
Voltage@IPP
VC(V)
IPP(A)
405.0
1.0
486.0
0.8
567.0
0.7
648.0
0.6
713.0
0.6
Test
Current
IT(mA)
1
1
1
1
1
Reverse
Leakage
@VRWM
IR(µA)
1
1
1
1
1
I-VI-VCurve
Characteristics
Curve Characteristics
BR V
VBR
Vc V
VRR
Vc
Bi-directional
I
I
pp
IIpp
BR V
VBR
Vc V
VRR
Vc
V
V
IIRR V
VFF
IITT
IITT
IIRR
IIRR
IITT
VRRV
BR Vc
VBR
Vc
V
V
V
pp
IIpp
pp
IIpp
PP
PPM Peak Pulse Power Dissipation -- Max power dissipation
PPM
PPM Peak Pulse Power Dissipation -- Max power dissipation
VV
Stand-off Voltage -- Maximum voltage that can be applied to the TVS without operation
RR
R Stand-off Voltage -- Maximum voltage that can be applied to the TVS without operation
VV
Breakdown Voltage -- Maximum voltage that flows thoughthe TVS at a specified test current (ITT)
BR
BR
test current (IT)
BR Breakdown Voltage -- Maximum voltage that flows though the TVS at a specified
VV
Clamping
Voltage
-- Peak--voltage
across the suppressor
a specified
Ippm (peakIppm
impulse
current)
CC C
Clamping
Voltage
Peak measured
voltage measured
across theat TVS
at a specified
(peak
impulse current)
Leakage
Current
-- Current
at VRR
IRIRR Reverse
Reverse
Leakage
Current
-- measured
Current measured
at VR
VV
Forward
Voltage
Drop Drop
for Uni-directional
Forward
Voltage
for Uni-directional
FF F
Ratings and Characteristic Curves
(TAA=25°C
=25°C unless
unless otherwise
otherwise noted)
noted)
(T
Figure 1 - TVS Transients Clamping Waveform
Figure 2 - Peak Pulse Power Rating
1000
1000
-Peak Pulse Power (kW)
PPPM
PPM
Voltage Transients
Transients
Voltage
Voltage Across
Across TVS
TVS
Voltage
Voltage or Current
P6KESeries
Series
P6KE
Uni-directional
Current Through
Through TVS
TVS
Current
100
100
10
10
11
0.1
0.1
0.000001
0.000001
Time
Time
Circuit Protection
System
0.00001
0.00001
0.0001
0.0001
0.001
0.001
-Pulse Width
Width (Sec.)
(Sec.)
ttdd-Pulse
Revision:DEC-16
Please refer to http://www.ruilon.com.cn for current information.
Page:3
Transient Voltage Suppressors - SMAJ Series
Ratings
and Characteristic Curves (TA=25°C unless otherwise noted)
Ratings and Characteristic Curves (T =25°C unless otherwise noted) (Continued)
A
Figure 3 - Pulse Derating Curve
Figure 4 - Pulse Waveform
150
IPPM - Peak Pulse Cur rent, % IRSM
Peak Pulse Power (PPP) or Current (IPP)
Derating in Percentage %
100
80
60
40
20
0
0
25
50
75
100
125
150
tr=10µsec
Half Value
IPPM IPPM
( )
2
50
TA-Ambient temperature (ºC)
Cj (pF)
Uni-directional V=0V
Uni-directional @VR
100
Bi-directional @VR
10
Tj=25ºC
f=1.0MHz
Vsig=50mVp-p
10.0
100.0
1000.0
VBR - Reverse Breakdown Voltage (V)
PM(AV), Steady State Power Dissipation (W)
Bi-directional V=0V
1.0
td
1.0
0
2.0
3.0
4.0
Figure 6 - Steady State Power Dissipation Derating
Curve
10000
1
10/1000µsec. Waveform
as defined by R.E.A
t-Time (ms)
Figure 5 - Typical Junction Capacitance
1000
Peak Value
IPPM
100
0
175
T J =25°C
Pulse Width(td) is de ned
as the point where the peak
current decays to 50% of IPPM
3.6
3.0
2.4
1.8
1.2
0.6
0
0
25
50
75
100 125 150
TA - Ambient Temperature (ºC)
175
Figure 7 - Maximum Non-Repetitive Forward Surge
Current Uni-Directional Only
IFSM - Peak Forward Surve Current
(A)
45
40
35
30
25
20
15
bargaining
10
5
0
1
10
100
Number of Cycles at 60 Hz
Circuit Protection
System
Revision:DEC-16
Please refer to http://www.ruilon.com.cn for current information. Page:4
Transient Voltage Suppressors - SMAJ Series
Soldering Parameters
Reflow Condition
tp
TP
Lead-free assembly
Critical Z one
TL to TP
Ramp-up
150°C
- Temperature Max (T s(min))
200°C
- Time (min to max) (t s)
TL
60-180 secs
Average ramp up rate (Liquidus Temp (TA) to
peak
3°C/second max
TS(max) to TA - Ramp-up Rate
3°C/second max
- Temperature (T A) (Liquidus)
Reflow
- Time (min to max) (t s)
Peak Temperature (T P)
Time within 5°C of actual peak Temperature (t p)
tL
Ts(max)
Ramp-down
Ts(min)
ts
Preheat
Time (t)
217°C
60-150 seconds
260+0/-5 °C
20-40 seconds
Ramp-down Rate
6°C/second max
Time 25°C to peak Temperature (T P)
8 minutes Max.
Do not exceed
Temperature (T)
Pre Heat
- Temperature Min (T s(min))
280°C
Physical Specifications
Weight
0.002 ounce, 0.061 gram
Case
JEDEC DO-214AC Molded Plastic over
Polarity
glass passivated junction
Termina
Matte Tin axial leads, solderable per JESD22-B102D.
Environmental Specifications
Temperature Cycle
JESD22-A104
Pressure Cooker
JESD 22-A102
High Temp. Storage
JESD22-A103
HTRB
JESD22-A108
Thermal Shock
JESD22-A106
Flow/Wave Soldering
Peak Temperature :
265°C
Dipping Time :
10 seconds
Soldering :
1 time
Dimensions DO-214AC/SMA
Inches
Millimeters
DIM
Min
Circuit Protection
System
Max
Min
Max
A
0.049
0.065
1.250
1.650
B
0.157
0.177
3.990
4.500
C
0.100
0.110
2.540
2.790
D
0.078
0.090
1.980
2.290
E
0.030
0.060
0.780
1.520
F
-
0.008
-
0.203
G
0.194
0.208
4.930
5.280
H
0.006
0.012
0.152
0.305
I
0.070
-
1.800
-
J
0.082
-
2.100
-
K
-
0.090
-
2.300
L
0.082
-
2.100
-
Revision:DEC-16
Please refer to http://www.ruilon.com.cn for current information.
Page:5
Transient Voltage Suppressors - SMAJ Series
Product Name
Part Marking System
Cathode band
S
M
A
0.157
Series
code
(4.0)
J
x
x
DC Spark-over
Voltage
0.31
(8.0)
x
XX
XXX
Cathode
0.059 DIA
(1.5)
Component
Package
SMAJxxxXX
0.33
RUILON
Date Code
Product Code
5% Voltage
Tolerance
13.0 (330)
0.80 (20.2)
Arbor Hole
Part Dia.
Number
(for Uni-directional products only)
A
Blank:UniDirectional
C:BiDirectional
0.157
(4.0)
Packaging
C
DO-214AC
Marking Code
Cover tape
Dimensions are in inches
(and millimeters).
Quantity
Direction2000
of Feed
Packaging Option
Packaging Specification
Tape & Reel
EIA RS-481
(8.5)
Tape and Reel Specification
0.157
(4.0)
Cathode
0.47
(12.0)
0.157
(4.0)
13.0 (330)
0.80 (20.2)
Arbor Hole Dia.
0.059 DIA
(1.5)
Cover tape
Dimensions are in inches
(and millimeters).
Direction of Feed
0.49
(12.5
0.157
(4.0)
Cathode
0.47
(12.0)
0.315
(8.0)
13.0 (330)
0.80 (20.2)
Arbor Hole Dia.
Circuit Protection
System
0.49
(12.5)
0.059 DIA
(1.5)
Cover tape
Dimensions are in inches
(and millimeters).
Revision:DEC-16
Please
refer
to http://www.ruilon.com.cn for current information. Page:6
Direction
of Feed
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