TVS Diodes
Surface Mount – 400W > SMF4L Series
©2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/05/18
Electrical Characteristics (TA=25°C unless otherwise noted)
Part
Number
Marking
Code
Breakdown
Voltage VBR
(Volts) @ IT
Test
Current
IT
(mA)
Reverse Stand
off Voltage
VR (V)
Maximum
Reverse
Leakage @ VR
IR (µA)
Maximum
Peak Pulse
Current Ipp
(A)
Maximum
Clamping
Voltage
@Ipp
VC (V)
Agency
Approval
MIN MAX
SMF4L5.0A KE 6.40 7. 0 0 10 5.0 800 40.1 9.2 X
SMF4L6.0A KG 6.67 7.37 10 6.0 800 35.9 10.3 X
SMF4L6.5A KK 7.22 7.98 10 6.5 500 33.1 11. 2 X
SMF4L7.0A KM 7.78 8.60 10 7.0 200 30.9 12.0 X
SMF4L7.5A KP 8.33 9.21 1 7.5 100 28.7 12.9 X
SMF4L8.0A KR 8.89 9.83 1 8.0 50 27.2 13.6 X
SMF4L8.5A KT 9.44 10.40 1 8.5 20 25.7 14.4 X
SMF4L9.0A KV 10.00 11. 10 1 9.0 10 24.1 15.4 X
SMF4L10A KX 11. 10 12.30 1 10 5 23.5 1 7. 0 X
SMF4L11A KZ 12.20 13.50 1 11 1 22.0 18.2 X
SMF4L12A LE 13.30 14.70 1 12 1 20.1 19.9 X
SMF4L13A LG 14.40 15.90 1 13 1 18.6 21.5 X
SMF4L14A LK 15.60 17.20 1 14 11 7. 2 23.2 X
SMF4L15A LM 16.70 18.50 1 15 1 16.4 24.4 X
SMF4L16A LP 17.80 19.70 1 16 1 15.4 26.0 X
SMF4L17A LR 18.90 20.90 1 17 1 14.5 27.6 X
SMF4L18A LT 20.00 22.10 1 18 1 13.7 29.2 X
SMF4L20A LV 22.20 24.50 1 20 1 12.3 32.4 X
SMF4L22A LX 24.40 26.90 1 22 1 11. 3 35.5 X
SMF4L24A LZ 26.70 29.50 1 24 1 10.3 38.9 X
SMF4L26A ME 28.90 31.90 1 26 1 9.5 42.1 X
SMF4L28A MG 31.10 34.40 1 28 1 8.8 45.4 X
SMF4L30A MK 33.30 36.80 1 30 1 8.3 48.4 X
SMF4L33A MM 36.70 40.60 1 33 1 7. 5 53.3 X
SMF4L36A MP 40.00 44.20 1 36 1 6.9 58.1 X
SMF4L40A MR 44.40 49.10 1 40 1 6.2 64.5 X
SMF4L43A MT 47.80 52.80 1 43 1 5.8 69.4 X
SMF4L45A MV 50.00 55.30 1 45 1 5.5 72.7 X
SMF4L48A MX 53.30 58.90 1 48 1 5.2 77.4 X
SMF4L51A MZ 56.70 62.70 1 51 1 4.9 82.4 X
SMF4L54A NE 60.00 66.30 1 54 1 4.6 87.1 X
SMF4L58A NG 64.40 71.20 1 58 1 4.3 93.6 X
SMF4L60A NK 66.70 73.70 1 60 1 4.1 96.8 X
SMF4L64A NM 71.10 78.60 1 64 1 3.9 103.0 X
SMF4L70A NP 77.80 86.00 1 70 1 3.5 113.0 X
SMF4L75A NR 83.30 92.10 1 75 1 3.3 121.0 X
SMF4L78A NT 86.70 95.80 1 78 1 3.2 126.0 X
SMF4L85A NV 94.40 104.00 1 85 1 2.9 137.0 X
SMF4L90A NX 100.00 111.0 0 1 90 1 1. 4 146.0
SMF4L100A NZ 111. 0 0 123.00 1 100 11. 2 162.0 X
SMF4L110A OE 122.00 135.00 1 110 11. 1 177.0 X
SMF4L120A OG 133.00 147.00 1 120 11. 0 193.0 X
SMF4L130A OK 144.00 159.00 1 130 11. 0 209.0 X
SMF4L150A OM 167.00 185.00 1 150 10.8 243.0 X
SMF4L160A OP 178.00 197.00 1 160 10.8 259.0 X
SMF4L170A OR 189.00 209.00 1 170 10.7 275.0 X
SMF4L180A OT 201.00 222.00 1 180 10.7 292.0 X
SMF4L188A OV 209.00 231.00 1 188 10.7 304.0 X
SMF4L200A OX 224.00 247.00 1 200 1 0.6 324.0 X
SMF4L220A OZ 246.00 272.00 1 220 1 0.6 356.0 X
SMF4L250A PE 279.00 309.00 1 250 1 0.5 405.0 X
Notes:
1. VBR measured after IT applied for 300µs, IT = square wave pulse or equivalent.
2. Surge current waveform per 10/1000µs exponential wave and derated per Fig.2.
3. All terms and symbols are consistent with ANSI/IEEE C62.35.