MDE Semiconductor, Inc.
78-150 Calle Tampico, Unit 210, La Quinta, CA., USA 92253 Tel: 760-564-8656 • Fax: 760-564-2414
1-800-831-4881 Email: sales@mdesemicondutor.com Web: www.mdesemiconductor.com
SMAJ SERIES
SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR
VOLTAGE-5.0 TO 440 Volts
400 Watt Peak Pulse Power
FEATURES
• For surface mounted applications in order to
optimize board space
• Low profile package
• Built-in strain relief
• Glass passivated junction
• Low inductance
• Excellent clamping capability
• Repetition rate (duty cycle):0.01%
• Fast response time: typically less than
1.0 ps from 0 volts to BV for unidirectional types
• Typical IR less than 1µA above 10V
• High temperature soldering:
250°C/10 seconds at terminals
• Plastic package has Underwriters Laboratory
Flammability Classification 94 V-O
MECHANICAL DATA
Case: JEDEC DO214AC. Molded plastic over glass
passivated junction
Terminals: Solder plated, solderable per
MIL-STD-750, Method 2026
Polarity: Color band denoted positive end (cathode)
except Bidirectional
Standard Packaging: 12mm tape (EIA STD RS-481)
Weight: 0.002 ounces, 0.064 grams)
Dimensions in inches (millimeters)
DEVICES FOR BIPOLAR APPLICATIONS
For Bidirectional use C or CA Suffix for types SMAJ5.0 thru types SMAJ440 (e.g. SMAJ5.0C, SMAJ440CA)
Electrical characteristics apply in both directions.
MAXIMUM RATINGS AND CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
RATING
Peak Pulse Power Dissipation on 10/1000 µs
waveform
(NOTE 1, 2, Fig.1)
Peak Pulse Current of on 10/1000 µs waveform
(Note 1,Fig 3)
Peak Forward Surge Current, 8.3ms Single Half Sine-wave
Superimposed on Rated Load,
(JEDEC Method)(Note2, 3)
Operatings and Storage Temperature Range
NOTES:
SYMBOL
P
PPM
I
PPM
VALUE
Minimum 400
SEE TABLE 1
40
-55 +150
UNITS
Watts
Amps
Amps
°C
I
FSM
T
J
, T
STG
1. Non-repetitive current pulse, per Fig.3 and derated above Ta=25 °C per Fig.2.
2. Mounted on Copper Pad area of 0.8x0.8" (20x20mm) per Fig.5.
3. 8.3ms single half sine-wave, or equivalent square wave, Duty cycle=4 pulses per minutes maximum.
Certified RoHS Compliant
UL File # E223026
MDE Semiconductor, Inc.
78-150 Calle Tampico, Unit 210, La Quinta, CA., USA 92253 Tel: 760-564-8656 • Fax: 760-564-2414
1-800-831-4881 Email: sales@mdesemicondutor.com Web: www.mdesemiconductor.com
RATING AND CHARACTERISTIC CURVES SMAJ SERIES
Fig. 1 - Peak Pulse Power Rating
100
Peak Pulse Power (P
PP
) or Current (I
PPM
)
Derating in Percentage,%
Fig.2 - Pulse Derating Curve
100
87.5
75
62.5
50
37.5
25
12.5
0
0
25
50
75
100
125
150
175
200
P
PPM
-Peak Pulse Power (kW)
Non-repetitive Pulse
Wavetorm shown in Fig.3
T
A
= 25°C
10
SMAJ85A –
SMAJ170
1
SMAJ5.0 –
SMAJ78
0.2x0.2"(5.0x5.0mm)
Copper Pad Areas
0.1
0.1µs
1.0µs
10µs
100µs
1.0ms
10ms
0.2x0.2"(5.0x5.0mm)
Copper Pad Areas
t
d
- Pulse Width (sec.)
T
A
- Ambient Temperature (°C)
Fig.3 - Pulse Waveform
I
PPM
- Peak Pulse Current,% I
RSM
150
Pulse Width(td)is defined
as the point where the
peak current decays to
50% of I
PPM
Fig.4 - Typical Junction Capacitance
10000
Peak Value
I
PPM
100
Half Value- I
PPM
2
C
J
- Junction Capacitance(pF)
t
r
= 10µsec.
T
J
= 25°C
1000
T
J
= 25°C
f = 1.0MH
Z
Vsig = 50mVp-p
Measured at
Stand-Off
Voltage, V
WM
Uni-Directional
100
Bi-Directional
50
10/1000µsec.Waveform
as defined by R.E.A.
10
1000
t
d
0
0
1.0
2.0
3.0
1
10
4.0
4.0
V
WM
- Reverse Stand-Off Voltage (V)
100
200
t - Time(ms)
Fig. 5 - Typ.Transient Thermal Impedance
1000
200
I
FSM
-Peak Forward Surge Current (A)
Transient Thermal Impedance
(
℃
/W)
T
J
= T
J
max,
8.3ms Single Half Sine-Wave
(JEDEC Method)
100
100
50
10
1
0
0.2
0.4
0.6
0.8
1
1.2
10
0
0.2
0.4
0.6
0.8
1
1.2
t
p
-Pulse Duration (sec)
Number of Cycles at 60 Hz
MDE Semiconductor, Inc.
78-150 Calle Tampico, Unit 210, La Quinta, CA., USA 92253 Tel: 760-564-8656 • Fax: 760-564-2414
1-800-831-4881 Email: sales@mdesemicondutor.com Web: www.mdesemiconductor.com
400 Watt Surface Mount TVS
UNI-POLAR
BI-POLAR
DEVICE
MARKING
CODE
REVERSE
TEST
PEAK
MAXIMUM
REVERSE BREAKDOWN BREAKDOWN
VOLTAGE
LEAKAGE
VOLTAGE CURRENT CLAMPING
PULSE
STANDOFF
V
BR
(V)
V
BR
(V)
(I
T
)
VOLTAGE CURRENT @ V
RWM
VOLTAGE
I
PP
(A)
@I
PP
V
C
(V)
V
RWM
(V)
I
R
(µA)
MIN. @ I
T
MAX. @ I
T
mA
7.00
7.37
7.98
8.60
9.21
9.83
10.40
11.10
12.30
13.50
14.70
15.90
17.20
18.50
19.70
20.90
22.10
24.50
26.90
29.50
31.90
34.40
36.80
40.60
44.20
49.10
52.80
55.30
58.90
62.70
66.30
71.20
73.70
78.60
86.00
92.10
95.80
104.00
111.00
123.00
135.00
147.00
159.00
185.00
197.00
209.00
222.00
247.00
272.00
309.00
371.00
432.00
494.00
543.00
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
1
9.2
10.3
11.2
12.0
12.9
13.6
14.4
15.4
17.0
18.2
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
96.8
103.0
113.0
121.0
126.0
137.0
146
162
177
193
209
243
259
275
292
324
356
405
486
567
648
713
43.5
38.8
35.7
33.3
31.0
29.4
27.8
26.0
23.5
22.0
20.1
18.6
17.2
16.4
15.4
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
4.1
3.9
3.5
3.3
3.2
2.9
2.7
2.5
2.3
2.1
1.9
1.6
1.5
1.5
1.4
1.2
1.1
1.0
0.8
0.7
0.6
0.6
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
5
UNI
BI
5.00
6.40
SMAJ5.0A
SMAJ5.0CA
AE
WE
6.00
6.67
SMAJ6.0A
SMAJ6.0CA
AG
WG
6.50
7.22
SMAJ6.5A
SMAJ6.5CA
AK
WK
7.00
7.78
SMAJ7.0A
SMAJ7.0CA
AM
WM
7.50
8.33
SMAJ7.5A
SMAJ7.5CA
AP
WP
8.00
8.89
SMAJ8.0A
SMAJ8.0CA
AR
WR
8.50
9.44
SMAJ8.5A
SMAJ8.5CA
AT
WT
9.00
10.00
SMAJ9.0A
SMAJ9.0CA
AV
WV
10.00
11.10
SMAJ10A
SMAJ10CA
AX
WX
11.00
12.20
SMAJ11A
SMAJ11CA
AZ
WZ
12.00
13.30
SMAJ12A
SMAJ12CA
BE
XE
13.00
14.40
SMAJ13A
SMAJ13CA
BG
XG
14.00
15.60
SMAJ14A
SMAJ14CA
BK
XK
15.00
16.70
SMAJ15A
SMAJ15CA
BM
XM
16.00
17.80
SMAJ16A
SMAJ16CA
BP
XP
17.00
18.90
SMAJ17A
SMAJ17CA
BR
XR
18.00
20.00
SMAJ18A
SMAJ18CA
BT
XT
20.00
22.20
SMAJ20A
SMAJ20CA
BV
XV
22.00
24.40
SMAJ22A
SMAJ22CA
BX
XX
24.00
26.70
SMAJ24A
SMAJ24CA
BZ
XZ
26.00
28.90
SMAJ26A
SMAJ26CA
CE
YE
28.00
31.10
SMAJ28A
SMAJ28CA
CG
YG
30.00
33.30
SMAJ30A
SMAJ30CA
CK
YK
33.00
36.70
SMAJ33A
SMAJ33CA
CM
YM
36.00
40.00
SMAJ36A
SMAJ36CA
CP
YP
40.00
44.40
SMAJ40A
SMAJ40CA
CR
YR
43.00
47.80
SMAJ43A
SMAJ43CA
CT
YT
45.00
50.00
SMAJ45A
SMAJ45CA
CV
YV
48.00
53.30
SMAJ48A
SMAJ48CA
CX
YX
51.00
56.70
SMAJ51A
SMAJ51CA
CZ
YZ
54.00
60.00
SMAJ54A
SMAJ54CA
RE
ZE
58.00
64.40
SMAJ58A
SMAJ58CA
RG
ZG
60.00
66.70
SMAJ60A
SMAJ60CA
RK
ZK
64.00
71.10
SMAJ64A
SMAJ64CA
RM
ZM
70.00
77.80
SMAJ70A
SMAJ70CA
RP
ZP
75.00
83.30
SMAJ75A
SMAJ75CA
RR
ZR
78.00
86.70
SMAJ78A
SMAJ78CA
RT
ZT
85.00
94.40
SMAJ85A
SMAJ85CA
RV
ZV
90.00
100.00
SMAJ90A
SMAJ90CA
RX
ZX
100.00
111.00
SMAJ100A
SMAJ100CA
RZ
ZZ
110.00
122.00
SMAJ110A
SMAJ110CA
SE
VE
120.00
133.00
SMAJ120A
SMAJ120CA
SG
VG
130.00
144.00
SMAJ130A
SMAJ130CA
SK
VK
SMAJ150A
SMAJ150CA
150.00
167.00
SM
VM
SMAJ160A
SMAJ160CA
160.00
178.00
SP
VP
SMAJ170A
SMAJ170CA
170.00
189.00
SR
VR
SMAJ180A
SMAJ180CA
180.00
201.00
ST
VT
SMAJ200A
SMAJ200CA
200.00
224.00
SV
VV
SMAJ220A
SMAJ220CA
220.00
246.00
SX
VX
SMAJ250A
SMAJ250CA
250.00
279.00
SZ
VZ
SMAJ300A
SMAJ300CA
300.00
335.00
TE
UE
SMAJ350A
SMAJ350CA
350.00
391.00
TG
UG
SMAJ400A
SMAJ400CA
400.00
447.00
TK
UK
SMAJ440A
SMAJ440CA
440.00
492.00
TM
UM
For bidirectional type having Vrwm of 10 volts and less, the IR limit is double.
For parts without A , the VBR is ± 10%
Certified RoHS Compliant
UL File # E223026
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