ELECTRONICS
Transient
Voltage
Suppressors
SMAJ Series
Circuit Protection
System
Specifications are subject to change without notice.
Please refer to
http://www.ruilon.com
for current information.
Transient Voltage Suppressors - SMAJ Series
Features
1. Halogen-free
2. Rohs compliant
3. Typical maximum temperature coefficient
4. ΔV
BR
=0.1%xV
BR
@25°C x ΔT
5. Glass passivated Chip junction in DO-214AC package
6. 800W peak pulse capadility at 10x1000μs waveform,repetition rate (duty
cycles):0.01%
7. Fast response time:typically less than 1.0ps from 0 Volts to BV min
8. Excellent clamping capability
9. Low incremental surge resistance
10. Typical IR less than 5μA above 11V
11. High temperature soldering guaranteed: 260°C/40 seconds / 0.375”,
(9.5mm) lead length, 5lbs., (2.3kg)tension
12. Plastic package has underwriters laboratory
flammability classification 94v-0
UNI
Cathode
BI
Anode
BI
UNI
Applications
TVS devices are ideal for the protection of I/O interfaces,VCC bus and other vulnerable circuits used in telecom, computer,
industrial and consumer electronic applications.
Mechanical Characteristics
Rating
Peak Pulse Power Dissipation at TA=25°C by 10x1000μs test
waveform (Fig.1)(Note 1),(Note 2)
Power Dissipation on inifinite 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.
Typical Thermal Resistance Junction to Lead
Typical Thermal Resistance Junction
to Ambient
Symbol
P
PPM
P
D
I
FSM
V
F
T
J
,
T
STG
R
uJL
R
uJA
Value
600
3.3
40
3.5/5.0
-55°C to 150°C
30
150
Units
Watts
Watts
Amps
V
°C
°C/W
°C/W
Notes:
1. Non-repetitive current pulse , per Fig. 3 and derated above TA = 25°C per Fig. 2.
2. Measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 perminute maximum.
3. VF<3.5V for devices of VBR _< 200V and VF<5.0V for devices of VBR _> 201V.
Circuit Protection
System
Specifications are subject to change without notice.
Please refer to
http://www.ruilon.com
for current information.
Page:1
Transient
Electriacl Characteristics
Voltage
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
SMAJ250A
SMAJ300A
(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
SMAJ250CA
SMAJ300CA
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
ZG
ZK
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
YG
YK
Suppressors - SMAJ Series
Test
Current
I
T(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
1
1
Maximum
Peak Pulse
Clamping
Current
Voltage@I
PP
V
C(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
405.0
1.0
486.0
0.8
Reverse
Leakage
@VRWM
IR
(µA)
800
800
500
200
100
50
20
10
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
Reverse
Breakdown
Stand-Off
Voltage@IT
Voltage
VRWM
(V)
V
BR MIN.(V)
(V)
5.0
6.40
7.25
6.0
6.67
7.67
6.5
7.22
8.30
7.0
7.78
8.95
7.5
8.33
9.58
8.0
8.89
10.23
8.5
9.44
10.82
9.0
10.00
11.50
10.0
11.10
12.80
11.0
12.20
14.00
12.0
13.30
15.30
13.0
14.40
16.50
14.0
15.60
17.90
15.0
16.70
19.20
16.0
17.80
20.50
17.0
18.90
21.70
18.0
20.00
23.30
20.0
22.20
25.50
22.0
24.40
28.00
24.0
26.70
30.70
26.0
28.90
33.20
28.0
31.10
35.80
30.0
33.30
38.30
33.0
36.70
42.20
36.0
40.00
46.00
40.0
44.40
51.10
43.0
47.80
54.90
45.0
50.00
57.50
48.0
53.30
61.30
51.0
56.70
65.20
54.0
60.00
69.00
58.0
64.40
74.10
60.0
66.70
76.70
64.0
71.10
81.80
70.0
77.80
89.50
75.0
83.30
95.80
78.0
86.70
99.70
85.0
94.40
108.20
90.0
100.00
115.50
100.0
111.00
128.00
110.0
122.00
140.50
120.0
133.00
153.00
130.0
144.00
165.50
150.0
167.00
192.60
160.0
178.00
205.00
170.0
189.00
217.50
180.0
198.00
230.40
190.0
209.00
243.20
200.0
220.00
256.00
210.0
231.00
268.80
220.0
242.00
281.60
250.0
279.00
309.00
300.0
335.00
371.00
Circuit Protection
System
Specifications are subject to change without notice.
Please refer to
http://www.ruilon.com
for current information.
Page:2
Transient Voltage Suppressors - SMAJ Series
Ratings and Characteristic Curves
Figure 1 - Peak Pulse Power Rating Curve
10
Peak Pulse Power (P
PP
) or Current (I
PP
)
Derating in Percentage %
0.0001
0.001
P
PPM
-Peak Pulse Power (kW)
Figure 2 - Pulse Derating Curve
100
80
60
40
20
0
1
0.2x0.2" (5.0x5.0mm)
0.1
0.000001
Copper Pad Area
0.00001
0
25
50
75
100
125
150
175
t
d
-Pulse Width (sec.)
T
A
-Ambient temperature (ºC)
Figure 3 - Pulse Waveform
Figure 4 - Typical Junction Capacitance
150
I
PPM
- Peak Pulse Current, % I
RSM
t r =10µsec
Peak Value
IPPM
TJ =25°C
as the point where the peak
current decays to 50% of I PPM
10000
Bi-directional V=0V
1000
Uni-directional V=0V
100
Cj (pF)
Uni-directional @VR
Half Value
IPPM
IPPM
2
( )
10/1000µsec. Waveform
100
Bi-directional @VR
50
10
Tj=25ºC
f=1.0MHz
Vsig=50mVp-p
0
td
1
1.0
10.0
100.0
1000.0
0
1.0
2.0
t-Time (ms)
3.0
4.0
V
BR
- Reverse Breakdown Voltage (V)
Figure 5 - Steady State Power Derating Curve
P
M(AV)
, Steady State Power Dissipation (W)
1.2
1
0.8
0.6
0.4
0.2
0
0
25
50
75
100 125 150
T
A
- Ambient Temperature (ºC)
175
Figure 6 - Maximum Non-Repetitive Peak Forward
Surge Current
45
I
FSM
- Peak Forward Surve Current
(A)
40
35
30
25
20
15
10
5
0
1
10
Number of Cycles at 60 Hz
100
Circuit Protection
System
Specifications are subject to change without notice.
Please refer to
http://www.ruilon.com
for current information.
Page:3
Transient Voltage Suppressors - SMAJ Series
Soldering Parameters
Feflow Condition
- Temperature Min (T s(min))
Pre Heat
- Temperature Max (T s(min))
- Time (min to max) (t s)
Average ramp up rate (Liquidus Temp (TL) to peak
TS(max) to TL - Ramp-up Rate
Reflow
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
- Temperature (T L) (Liquidus)
- Time (min to max) (t s)
Lead-free assembly
150°C
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
P
Ramp-up
t
p
one
Critical Z
P
T
L
to T
Physical Specifications
Weight
Case
Polarity
Termina
0.002 ounce,0.061 gram
JEDEC DO-214AC molded plastic body over
passivated junction.
Color band denotes the cathode except Bipolar.
Matte Tin axial leads, solderable per
JESD22-B102D.
t
L
T
L
Temperature (T)
T
s(max)
Ramp-down
T
s(min)
Preheat
t
s
Time (t)
Environmental Specifications
Temperature Cycle
Pressure Cooker
High Temp. Storage
HTRB
Thermal Shock
JESD22-A104
JESD 22-A102
JESD22-A103
JESD22-A108
JESD22-A106
Circuit Protection
System
Specifications are subject to change without notice.
Please refer to
http://www.ruilon.com
for current information.
Page:4
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