Transient Voltage Suppression Diodes
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Surface Mount – 400W > SMAJ series
Electrical Characteristics (TA=25°C unless otherwise noted)
Part
Number
(Uni)
Part
Number
(Bi)
Marking Reverse
Stand off
Voltage VR
(Volts)
Breakdown
Voltage VBR
(Volts) @ IT
Test
Current
IT
(mA)
Maximum
Clamping
Voltage VC
@ Ipp
(V)
Maximum
Peak Pulse
Current Ipp
(A)
Maximum
Reverse
Leakage IR
@ VR
(µA)
Agency
Approval
UNI BI MIN MAX
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 1 7. 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 1 7. 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 1 7. 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 90.0 100.00 111.0 0 1 146.0 2.7 1 X
SMAJ100A SMAJ100CA RZ ZZ 100.0 111.0 0 123.00 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 parts without A , the VBR is ± 10% and VC is 5% higher than with A parts
For bidirectional type having VR of 10 volts and less, the IR limit is double.