Transient Voltage Suppression Diodes
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 06/07/17
Surface Mount – 600W > SMBJ 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) at 10/1000
Maximum
Peak
Pulse Current
Ipp (A) at
10/1000
Maximum
Reverse
Leakage IR
@ VR
(µA)
Maximum
Temperature
coefficient of
VBR (%/C)
Agency
Recognition
UNI BI MIN MAX
SMBJ5.0A SMBJ5.0CA KE AE 5.0 6.40 7. 0 0 10 9.2 65.3 800 0.041 X
SMBJ6.0A SMBJ6.0CA KG AG 6.0 6.67 7.37 10 10.3 58.3 800 0.046 X
SMBJ6.5A SMBJ6.5CA KK AK 6.5 7.22 7.98 10 11. 2 53.6 500 0.052 X
SMBJ7.0A SMBJ7.0CA KM AM 7. 0 7.78 8.60 10 12.0 50.0 200 0.058 X
SMBJ7.5A SMBJ7.5CA KP AP 7. 5 8.33 9.21 1 12.9 46.6 100 0.061 X
SMBJ8.0A SMBJ8.0CA KR AR 8.0 8.89 9.83 1 13.6 44.2 50 0.064 X
SMBJ8.5A SMBJ8.5CA KT AT 8.5 9.44 10.40 1 14.4 41.7 20 0.066 X
SMBJ9.0A SMBJ9.0CA KV AV 9.0 10.00 11. 10 1 15.4 39.0 10 0.069 X
SMBJ10A SMBJ10CA KX AX 10.0 11. 10 12.30 1 1 7. 0 35.3 5 0.071 X
SMBJ11A SMBJ11CA KZ AZ 11. 0 12.20 13.50 1 18.2 33.0 1 0.074 X
SMBJ12A SMBJ12CA LE BE 12.0 13.30 14.70 1 19.9 30.2 1 0.075 X
SMBJ13A SMBJ13CA LG BG 13.0 14.40 15.90 1 21.5 28.0 1 0.076 X
SMBJ14A SMBJ14CA LK BK 14.0 15.60 17.20 1 23.2 25.9 1 0.08 X
SMBJ15A SMBJ15CA LM BM 15.0 16.70 18.50 1 24.4 24.6 1 0.083 X
SMBJ16A SMBJ16CA LP BP 16.0 17.80 19.70 1 26.0 23.1 1 0.084 X
SMBJ17A SMBJ17CA LR BR 1 7. 0 18.90 20.90 1 27.6 21.8 1 0.085 X
SMBJ18A SMBJ18CA LT BT 18.0 20.00 22.10 1 29.2 20.6 1 0.088 X
SMBJ20A SMBJ20CA LV BV 20.0 22.20 24.50 1 32.4 18.6 1 0.091 X
SMBJ22A SMBJ22CA LX BX 22.0 24.40 26.90 1 35.5 16.9 1 0.092 X
SMBJ24A SMBJ24CA LZ BZ 24.0 26.70 29.50 1 38.9 15.5 1 0.092 X
SMBJ26A SMBJ26CA ME CE 26.0 28.90 31.90 1 42.1 14.3 1 0.093 X
SMBJ28A SMBJ28CA MG CG 28.0 31.10 34.40 1 45.4 13.3 1 0.094 X
SMBJ30A SMBJ30CA MK CK 30.0 33.30 36.80 1 48.4 12.4 1 0.096 X
SMBJ33A SMBJ33CA MM CM 33.0 36.70 40.60 1 53.3 11. 3 1 0.097 X
SMBJ36A SMBJ36CA MP CP 36.0 40.00 44.20 1 58.1 10.4 1 0.098 X
SMBJ40A SMBJ40CA MR CR 40.0 44.40 49.10 1 64.5 9.3 1 0.099 X
SMBJ43A SMBJ43CA MT CT 43.0 47.80 52.80 1 69.4 8.7 1 0.1 X
SMBJ45A SMBJ45CA MV CV 45.0 50.00 55.30 1 72.7 8.3 1 0.101 X
SMBJ48A SMBJ48CA MX CX 48.0 53.30 58.90 1 77.4 7. 8 10.101 X
SMBJ51A SMBJ51CA MZ CZ 51.0 56.70 62.70 1 82.4 7. 3 10.101 X
SMBJ54A SMBJ54CA NE DE 54.0 60.00 66.30 1 87.1 6.9 1 0.102 X
SMBJ58A SMBJ58CA NG DG 58.0 64.40 71.20 1 93.6 6.5 1 0.103 X
SMBJ60A SMBJ60CA NK DK 60.0 66.70 73.70 1 96.8 6.2 1 0.103 X
SMBJ64A SMBJ64CA NM DM 64.0 71.10 78.60 1 103.0 5.9 1 0.104 X
SMBJ70A SMBJ70CA NP DP 70.0 77.80 86.00 1 113.0 5.3 1 0.105 X
SMBJ75A SMBJ75CA NR DR 75.0 83.30 92.10 1 121.0 5.0 1 0.106 X
SMBJ78A SMBJ78CA NT DT 78.0 86.70 95.80 1 126.0 4.8 1 0.106 X
SMBJ85A SMBJ85CA NV DV 85.0 94.40 104.00 1 137.0 4.4 1 0.106 X
SMBJ90A SMBJ90CA NX DX 90.0 100.00 111. 0 0 1 146.0 4.1 1 0.107 X
SMBJ100A SMBJ100CA NZ DZ 100.0 111. 0 0 123.00 1 162.0 3.7 1 0.107 X
SMBJ110A SMBJ110CA PE EE 110.0 122.00 135.00 1 177.0 3.4 1 0.107 X
SMBJ120A SMBJ120CA PG EG 120.0 133.00 147.00 1 193.0 3.1 1 0.108 X
SMBJ130A SMBJ130CA PK EK 130.0 144.00 159.00 1 209.0 2.9 1 0.108 X
SMBJ150A SMBJ150CA PM EM 150.0 167.00 185.00 1 243.0 2.5 1 0.108 X
SMBJ160A SMBJ160CA PP EP 160.0 178.00 197.00 1 259.0 2.3 1 0.108 X
SMBJ170A SMBJ170CA PR ER 170.0 189.00 209.00 1 275.0 2.2 1 0.108 X
SMBJ180A SMBJ180CA PT ET 180.0 201.00 222.00 1 292.0 2.1 1 0.108 X
SMBJ188A SMBJ188CA PB EB 188.0 209.00 231.00 1 304.0 2.0 1 0.11 X
SMBJ200A SMBJ200CA PV EV 200.0 224.00 247.00 1 324.0 1. 9 1 0.11 X
SMBJ220A SMBJ220CA PX EX 220.0 246.00 272.00 1 356.0 1. 7 1 0.11 X
SMBJ250A SMBJ250CA PZ EZ 250.0 279.00 309.00 1 405.0 1. 5 1 0.11 X
SMBJ300A* SMBJ300CA* QE FE 300.0 335.00 371.00 1 486.0 1. 3 1 0.112
SMBJ350A* SMBJ350CA* QG FG 350.0 391.00 432.00 1 567.0 1. 1 1 0.112
SMBJ400A* SMBJ400CA* QK FK 400.0 447.00 494.00 1 648.0 0.9 1 0.112
SMBJ440A* SMBJ440CA* QM FM 440.0 492.00 543.00 1 713.0 0.9 1 0.112
For bidirectional type having VR of 10 volts and less, the IR limit is double.
Components marked with “*” use stacked-die, therefore they have a higher surge capability (typical 1.8*IPP).