UNI-POLAR BI-POLAR UNI BI
SMAJ5.0A SMAJ5.0CA AE WE 5.0 6.40 7.00 10 9.2 43.5 800
SMAJ6.0A SMAJ6.0CA AG WG 6.0 6.67 7.37 10 10.3 38.8 800
SMAJ6.5A SMAJ6.5CA AK WK 6.5 7.22 7.98 10 11.2 35.7 500
SMAJ7.0A SMAJ7.0CA AM WM 7.0 7.78 8.60 10 12.0 33.3 200
SMAJ7.5A SMAJ7.5CA AP WP 7.5 8.33 9.21 1 12.9 31.0 100
SMAJ8.0A SMAJ8.0CA AR WR 8.0 8.89 9.83 1 13.6 29.4 50
SMAJ8.5A SMAJ8.5CA AT WT 8.5 9.44 10.40 1 14.4 27.8 20
SMAJ9.0A SMAJ9.0CA AV WV 9.0 10.00 11.10 1 15.4 26.0 10
SMAJ10A SMAJ10CA AX WX 10.0 11.10 12.30 1 17.0 23.5 5
SMAJ11A SMAJ11CA AZ WZ 11.0 12.20 13.50 1 18.2 22.0 5
SMAJ12A SMAJ12CA BE XE 12.0 13.30 14.70 1 19.9 20.1 5
SMAJ13A SMAJ13CA BG XG 13.0 14.40 15.90 1 21.5 18.6 5
SMAJ14A SMAJ14CA BK XK 14.0 15.60 17.20 1 23.2 17.2 5
SMAJ15A SMAJ15CA BM XM 15.0 16.70 18.50 1 24.4 16.4 5
SMAJ16A SMAJ16CA BP XP 16.0 17.80 19.70 1 26.0 15.4 5
SMAJ17A SMAJ17CA BR XR 17.0 18.90 20.90 1 27.6 14.5 5
SMAJ18A SMAJ18CA BT XT 18.0 20.00 22.10 1 29.2 13.7 5
SMAJ20A SMAJ20CA BV XV 20.0 22.20 24.50 1 32.4 12.3 5
SMAJ22A SMAJ22CA BX XY 22.0 24.40 26.90 1 35.5 11.3 5
SMAJ24A SMAJ24CA BZ XZ 24.0 26.70 29.50 1 38.9 10.3 5
SMAJ26A SMAJ26CA CE YE 26.0 28.90 31.90 1 42.1 9.5 5
SMAJ28A SMAJ28CA CG YG 28.0 31.10 34.40 1 45.4 8.8 5
SMAJ30A SMAJ30CA CK YK 30.0 33.30 36.80 1 48.4 8.3 5
SMAJ33A SMAJ33CA CM YM 33.0 36.70 40.60 1 53.3 7.5 5
SMAJ36A SMAJ36CA CP YP 36.0 40.00 44.20 1 58.1 6.9 5
SMAJ40A SMAJ40CA CR YR 40.0 44.40 49.10 1 64.5 6.2 5
SMAJ43A SMAJ43CA CT YT 43.0 47.80 52.80 1 69.4 5.8 5
SMAJ45A SMAJ45CA CV YV 45.0 50.00 55.30 1 72.7 5.5 5
SMAJ48A SMAJ48CA CX YX 48.0 53.30 58.90 1 77.4 5.2 5
SMAJ51A SMAJ51CA CZ YZ 51.0 56.70 62.70 1 82.4 4.9 5
SMAJ54A SMAJ54CA RE ZE 54.0 60.00 66.30 1 87.1 4.6 5
SMAJ58A SMAJ58CA RG ZG 58.0 64.40 71.20 1 93.6 4.3 5
SMAJ60A SMAJ60CA RK ZK 60.0 66.70 73.70 1 96.8 4.1 5
SMAJ64A SMAJ64CA RM ZM 64.0 71.10 78.60 1 103.0 3.9 5
SMAJ70A SMAJ70CA RP ZP 70.0 77.80 86.00 1 113.0 3.5 5
SMAJ75A SMAJ75CA RR ZR 75.0 83.30 92.10 1 121.0 3.3 5
SMAJ78A SMAJ78CA RT ZT 78.0 86.70 95.80 1 126.0 3.2 5
SMAJ85A SMAJ85CA RV ZV 85.0 94.40 104.00 1 137.0 2.9 5
SMAJ90A SMAJ90CA RX ZX 90.0 100.00 111.00 1 146.0 2.7 5
SMAJ100A SMAJ100CA RZ ZZ 100.0 111.00 123.00 1 162.0 2.5 5
SMAJ110A SMAJ110CA SE VE 110.0 122.00 135.00 1 177.0 2.3 5
SMAJ120A SMAJ120CA SG VG 120.0 133.00 147.00 1 193.0 2.1 5
SMAJ130A SMAJ130CA SK VK 130.0 144.00 159.00 1 209.0 1.9 5
SMAJ150A SMAJ150CA SM VM 150.0 167.00 185.00 1 243.0 1.6 5
SMAJ160A SMAJ160CA SP VP 160.0 178.00 197.00 1 259.0 1.5 5
SMAJ170A SMAJ170CA SR VR 170.0 189.00 209.00 1 275.0 1.5 5
For bidirectional type having Vrwm of 10 volts and less, the IR limit is double.
For parts without A , the VBR is + 10%
BREAKDOWN
VOLTAGE
VBR(V)
MAX.@IT
MAXIMUM
CLAMPING
VOLTAGE
@Ipp Vc(V)
DEVICE
MARKING
CODE
SMAJ SERIES
PEAK
PULSE
CURRENT
Ipp (A)
BREAKDOWN
VOLTAGE
VBR(V)
MIN.@IT
TEST
CURRENT
IT (mA)
SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR
VOLTAGE - 5.0 TO 170 Volts
400Watts Peak Pulse Power
SMAJ
PART NUMBER
REVERSE
LEAKAGE
@ VRWM
IR(µA)
REVERSE
STAND-
OFF
VOLTAGE
VRWM(V)
DB LECTRO Inc.
DB LECTRO Inc. 3600 boul. Matte suite i Brossard Qc J4Y-2Z2 tel:(450)-444-1424 fax:(450)-444-4714
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 1.0ps from 0 Volts
to V(BR) for unidirectional types
Typical IR less than 1mA above 10V
Dimensions in inches and (millimeters)
MECHANICAL DATA
Case: JEDEC DO214AC. Molded plastic over glass passivated junction
Terminal: 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 ounce, 0.061 gram
SYMBOL VALUE UNITS
PPPM
Minimum
400 Watts
IPPM
SEE
TABLE 1 Amps
TJ, TSTG
-55 to +
150
Notes
:
1.Non-repetitive current pulse , per Fig. 3 and derated above TA= 25 per Fig. 2 .
2.Mounted on 5.0mm2 (0.03mm thick) Copper Pads to each terminal
3.8.3ms single half sine-wave , or equivalent square wave, Duty cycle = 4 pulses per minutes maximum.
DEVICES FOR BIPOLAR APPLICATION
SMAJ SERIES
SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR
VOLTAGE-5.0 TO 170 Volts
400 Watt Peak Pulse Power
Plastic package has Underwriters Laboratory Flammability 94V-O
High Temperature solderting: 250°C/10 seconds at terminals
FEATURES
Operating junction and Storage Temperature Range
IFSM
Peak Pulse Current of on 10/1000 s waveform (Note 1,FIG.3)
Peak Pulse Power Dissipation on 10/1000 s waveform (Note 1,2 ,FIG.1)
40 Amps
RATING
Peak Forward Surge Current,8.3ms Single Half Sine-Wave
Superimposed on Rated Load,(JEDEC Method) (Note2,3)
For Bidirectional use C or CA Suffix for types SMAJ5.0 thru types SMAJ170 (e.g. SMAJ5.0C , SMAJ170CA)
Electrical characteristics apply in both directions
MAXIMUM RATINGS AND CHARACTERISTICS
Ratings at 25 ambient temperature unless otherwise specified.
DB LECTRO Inc.
DB LECTRO Inc. 3600 boul. Matte suite i Brossard Qc J4Y-2Z2 tel:(450)-444-1424 fax:(450)-444-4714
Ratings and
Characteristic Curves(TA=25 unless otherwise noted)
SMAJ SERIES
RATINGS AND CHARACTERISTIC CURVES
10
100
1000
110100
Number of Cycles at 60 Hz
50
5
IFSM-Peak Forward Surge Current (A)
200
TJ = TJ max,
8.3ms Single Half Sine-Wave
(JEDEC Method)
50
t - Time(ms)
3.0 4.0
150
0
1.0 2.0
tr = 10µsec.
Peak Value
IPPM
TJ = 25°C
Pulse Width(td)is defined
as the point where the
peak current decays to
50% of IPPM
10/1000µsec.Waveform
as defined by R.E.A.
td
Fig.3 - Pulse Waveform
4.0
50
Half Value- IPPM
2
100
IPPM - Peak Pulse Current,% IRSM
3.0
0
1
10
100
1000
0.001 0.01 0.1 1 10 100 1000
Transient Thermal Impedance
( /W)
Fig. 5 - Typ.Transient Thermal Impedance
tp-Pulse Duration (sec)
Fig.6 - Maximum Non-Repetitive Peak Forward
Surge Current Uni-Directional Only
10
100
1000
10000
Measured at
Stand-Off
Voltage, VWM
TJ = 25°C
f = 1.0MHZ
Vsig = 50mVp-p
Fig.4 - Typical Junction Capacitance
CJ - Junction Capacitance(pF)
1100
20010
Uni-Directional
Bi-Directional
VWM - Reverse Stand-Off Voltage (V)
0
12.5
25
37.5
50
62.5
75
87.5
100
0 25 50 75 100 125 150 175 200
Fig.2 - Pulse Derating Curve
Peak Pulse Power (PPP) or Current (IPPM)
Derating in Percentage,%
0.2x0.2"(5.0x5.0mm)
Copper Pad Areas
TA - Ambient Temperature (°C)
0.1
1
10
100
10ms
0.1µs 1.0µs 10µs 100µs 1.0ms
td - Pulse Width (sec.)
Fig. 1 - Peak Pulse Power Rating
PPPM-Peak Pulse Power (kW)
0.2x0.2"(5.0x5.0mm)
Copper Pad Areas
Non-repetitive Pulse
Wavetorm shown in Fig.3
TA = 25°C
SMAJ5.0 –
SMAJ78
SMAJ85A –
SMAJ170
DB LECTRO Inc.
DB LECTRO Inc. 3600 boul. Matte suite i Brossard Qc J4Y-2Z2 tel:(450)-444-1424 fax:(450)-444-4714