Transient Voltage Suppression Diodes
Surface Mount 400W > SMAJ series
Pb e3
RoHS
SMAJ Series
Description
Uni-directional
The SMAJ series is designed specifically to protect
sensitive electronic equipment from voltage transients
Bi-directional
induced by lightning and other transient voltage events.
Features
400W Peak pulse power Fast response time:
capability at 10/1000s typically less than 1.0ps
waveform, repetition rate from 0 Volts to V min
BR
(duty cycle): 0.01%
Glass passivated junction
Excellent clamping
Low inductance
capability
Agency Approvals
High temperature
Typical I less than 1A
to reflow soldering
R
AGENCY AGENCY FILE NUMBER
when V min>12V
guaranteed: 260C/40sec
BR
For surface mounted
V @ T = V @25C
E230531
BR J BR
applications to optimize
x (1+ T x (T - 25))
J
board space
(T:Temperature
Maximum Ratings and Thermal Characteristics
O
Low profile package Coefficient, typical value
(T =25 C unless otherwise noted)
A
is 0.1%)
Typical failure mode is
Parameter Symbol Value Unit
short from over-specified Plastic package is
Peak Pulse Power Dissipation at
voltage or current ammabilitfl y rated
T =25C by 10/1000s Waveform P 400 W
A PPM
V-0 per Underwriters
Whisk er test is conducted
(Fig.2)(Note 1), (Note 2), (Note 5)
Laboratories
based on JEDEC
Power Dissipation on Infinite Heat
P 3.3 W
JESD201A per its table 4a Meet MSL level1, per
O
D
Sink at T =50 C
L
and 4c J-STD-020, LF maximun
Peak Forward Surge Current, 8.3ms
peak of 260C
I 60 A
IEC-61000-4-2 ESD
FSM
Single Half Sine Wave (Note 3)
30kV(Air), 30kV (Contact) Matte tin leadfree Plated
Maximum Instantaneous Forward
ESD protection of data Halogen free and RoHS
Voltage at 25A for Unidirectional V 3.5/5.0 V
F
Only (Note 4)
lines in accordance with
compliant
Operating Temperature Range T -65 to 150 C IEC 61000-4-2
J
Pb-free E3 means 2nd
Storage Temperature Range T -65 to 175 C EFT protection of data
level interconnect is
STG
lines in accordance with
Pb-free and the terminal
Typical Thermal Resistance Junction
C/W
R 30
JL IEC 61000-4-4
to Lead finish material is tin(Sn)
Built-in strain relief (IPC/JEDEC J-STD-
Typical Thermal Resistance Junction
C/W
R 120
JA 609A.01)
to Ambient
Notes:
Applications
1. Non-repetitive current pulse, per Fig.4 and derated above T (initial) =25C per Fig. 3.
J
2. Mounted on 5.0x5.0mm copper pad to each terminal.
TVS devices are ideal for the protection of I/O Interfaces,
3. Measured on 8.3ms single half sine wave or equivalent square wave for unidirectional
V bus and other vulnerable circuits used in Telecom,
CC
device only.
Computer, Industrial and Consumer electronic
4. V < 3.5V for single die parts and V < 5.0V for stacked-die parts.
F F
applications.
5. The P of stacked-die parts is 600W and please contact littelfuse for the detail
PPM
stacked-die parts.
Functional Diagram Additional Infomarion
Bi-directional
Datasheet Samples
Resources
Cathode
Anode
Uni-directional
2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15Transient Voltage Suppression Diodes
Surface Mount 400W > SMAJ series
Electrical Characteristics (T =25C unless otherwise noted)
A
Maximum Maximum
Test
Breakdown
Reverse Maximum Agency
Part Part Clamping Reverse
Marking Voltage V
Current
Stand off Peak Pulse Approval
BR
Number Number Voltage V Leakage I
C R
Voltage V (Volts) @ I Current I
I
T
R pp
(Uni) (Bi) T @ I @ V
pp R
(Volts) (A)
UNI BI MIN MAX (mA) (V) (A)
SMAJ5.0A SMAJ5.0CA AE WE 5.0 6.40 7.00 10 9.2 43.5 800 X
SMAJ6.0A SMAJ6.0CA AG WG 6.0 6.67 7.37 10 10.3 38.8 800 X
SMAJ6.5A SMAJ6.5CA AK WK 6.5 7.22 7.98 10 11.2 35.7 500 X
SMAJ7.0A SMAJ7.0CA AM WM 7.0 7.78 8.60 10 12.0 33.3 200 X
SMAJ7.5A SMAJ7.5CA AP WP 7.5 8.33 9.21 1 12.9 31.0 100 X
SMAJ8.0A SMAJ8.0CA AR WR 8.0 8.89 9.83 1 13.6 29.4 50 X
SMAJ8.5A SMAJ8.5CA AT WT 8.5 9.44 10.40 1 14.4 27.8 20 X
SMAJ9.0A SMAJ9.0CA AV WV 9.0 10.00 11.10 1 15.4 26.0 10 X
SMAJ10A SMAJ10CA AX WX 10.0 11.10 12.30 1 17.0 23.5 5 X
SMAJ11A SMAJ11CA AZ WZ 11.0 12.20 13.50 1 18.2 22.0 1 X
SMAJ12A SMAJ12CA BE XE 12.0 13.30 14.70 1 19.9 20.1 1 X
SMAJ13A SMAJ13CA BG XG 13.0 14.40 15.90 1 21.5 18.6 1 X
SMAJ14A SMAJ14CA BK XK 14.0 15.60 17.20 1 23.2 17.2 1 X
SMAJ15A SMAJ15CA BM XM 15.0 16.70 18.50 1 24.4 16.4 1 X
SMAJ16A SMAJ16CA BP XP 16.0 17.80 19.70 1 26.0 15.4 1 X
SMAJ17A SMAJ17CA BR XR 17.0 18.90 20.90 1 27.6 14.5 1 X
SMAJ18A SMAJ18CA BT XT 18.0 20.00 22.10 1 29.2 13.7 1 X
SMAJ20A SMAJ20CA BV XV 20.0 22.20 24.50 1 32.4 12.3 1 X
SMAJ22A SMAJ22CA BX XX 22.0 24.40 26.90 1 35.5 11.3 1 X
SMAJ24A SMAJ24CA BZ XZ 24.0 26.70 29.50 1 38.9 10.3 1 X
SMAJ26A SMAJ26CA CE YE 26.0 28.90 31.90 1 42.1 9.5 1 X
SMAJ28A SMAJ28CA CG YG 28.0 31.10 34.40 1 45.4 8.8 1 X
SMAJ30A SMAJ30CA CK YK 30.0 33.30 36.80 1 48.4 8.3 1 X
SMAJ33A SMAJ33CA CM YM 33.0 36.70 40.60 1 53.3 7.5 1 X
SMAJ36A SMAJ36CA CP YP 36.0 40.00 44.20 1 58.1 6.9 1 X
SMAJ40A SMAJ40CA CR YR 40.0 44.40 49.10 1 64.5 6.2 1 X
SMAJ43A SMAJ43CA CT YT 43.0 47.80 52.80 1 69.4 5.8 1 X
SMAJ45A SMAJ45CA CV YV 45.0 50.00 55.30 1 72.7 5.5 1 X
SMAJ48A SMAJ48CA CX YX 48.0 53.30 58.90 1 77.4 5.2 1 X
SMAJ51A SMAJ51CA CZ YZ 51.0 56.70 62.70 1 82.4 4.9 1 X
SMAJ54A SMAJ54CA RE ZE 54.0 60.00 66.30 1 87.1 4.6 1 X
SMAJ58A SMAJ58CA RG ZG 58.0 64.40 71.20 1 93.6 4.3 1 X
SMAJ60A SMAJ60CA RK ZK 60.0 66.70 73.70 1 96.8 4.1 1 X
SMAJ64A SMAJ64CA RM ZM 64.0 71.10 78.60 1 103.0 3.9 1 X
SMAJ70A SMAJ70CA RP ZP 70.0 77.80 86.00 1 113.0 3.5 1 X
SMAJ75A SMAJ75CA RR ZR 75.0 83.30 92.10 1 121.0 3.3 1 X
SMAJ78A SMAJ78CA RT ZT 78.0 86.70 95.80 1 126.0 3.2 1 X
SMAJ85A SMAJ85CA RV ZV 85.0 94.40 104.00 1 137.0 2.9 1 X
SMAJ90A SMAJ90CA RX ZX 90.0 100.00 111.00 1 146.0 2.7 1 X
SMAJ100A SMAJ100CA RZ ZZ 100.0 111.00 123.00 1 162.0 2.5 1 X
SMAJ110A SMAJ110CA SE VE 110.0 122.00 135.00 1 177.0 2.3 1 X
SMAJ120A SMAJ120CA SG VG 120.0 133.00 147.00 1 193.0 2.1 1 X
SMAJ130A SMAJ130CA SK VK 130.0 144.00 159.00 1 209.0 1.9 1 X
SMAJ150A SMAJ150CA SM VM 150.0 167.00 185.00 1 243.0 1.6 1 X
SMAJ160A SMAJ160CA SP VP 160.0 178.00 197.00 1 259.0 1.5 1 X
SMAJ170A SMAJ170CA SR VR 170.0 189.00 209.00 1 275.0 1.5 1 X
SMAJ180A SMAJ180CA ST VT 180.0 201.00 222.00 1 292.0 1.4 1
SMAJ200A SMAJ200CA SV VV 200.0 224.00 247.00 1 324.0 1.2 1
SMAJ220A SMAJ220CA SX VX 220.0 246.00 272.00 1 356.0 1.1 1
SMAJ250A SMAJ250CA SZ VZ 250.0 279.00 309.00 1 405.0 1.0 1
SMAJ300A SMAJ300CA TE UE 300.0 335.00 371.00 1 486.0 0.8 1
SMAJ350A SMAJ350CA TG UG 350.0 391.00 432.00 1 567.0 0.7 1
SMAJ400A SMAJ400CA TK UK 400.0 447.00 494.00 1 648.0 0.6 1
SMAJ440A SMAJ440CA TM UM 440.0 492.00 543.00 1 713.0 0.6 1
For bidirectional type having V of 10 volts and less, the I limit is double.
R R
For parts without A , the V is 10% and V is 5% higher than with A parts
BR C
2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15