SMCJ Characteristics
Doc ID 5617 Rev 8 3/10
Table 3. Electrical characteristics - parameter values (T
amb
= 25 °C)
Order code
I
RM
max@V
RM
V
BR
@I
R
(1)
1. Pulse test : t
p
< 50 ms
V
CL
@I
PP
10/1000 µs
R
D
(2)
10/1000 µs
2. To calculate maximum clamping voltage at other surge level,use the following formula: V
CLmax
= V
CL
- R
D
x (I
PP
- I
PPappli
)
where I
PPappli
is the surge current in the application
V
CL
@I
PP
8/20 µs
R
D
(2)
8/20 µs
αT
(3)
3. To calculate V
BR
or V
CL
versus junction temperature, use the following formulas:
V
BR
@ T
J
= V
BR
@ 25°C
x (1 + αT x (T
J
– 25))
V
CL
@ T
J
= V
CL
@ 25°C
x (1 + αT x (T
J
– 25))
25 °C 85 °C min typ max max max
µA V V mA V A
(4)
4. Surge capability given for both directions for unidirectional and bidirectional types.
Ω VA
(4)
mΩ 10-4/ °C
SMCJ5.0A/CA 500 2000 5.0 6.4 6.74 10 9.2 171 0.012 13.4 746 8.5 5.7
SMCJ6.0A/CA 500 2000 6.0 6.7 7.05 10 10.3 152 0.019 13.7 730 8.6 5.9
SMCJ6.5A/CA 250 1000 6.5 7.2 7.58 10 11.2 140 0.023 14.5 690 9.5 6.1
SMCJ8.5A/CA 10 50 8.5 9.4 9.9 1 14.4 105 0.038 19.5 512 18 7.3
SMCJ10A/CA 0.2 1 10 11.1 11.7 1 17 92 0.051 21.7 461 20 7.8
SMCJ12A/CA 0.2 1 12 13.3 14 1 19.9 79 0.066 25.3 394 27 8.3
SMCJ13A/CA 0.2 1 13 14.4 15.2 1 21.5 73 0.076 27.2 368 31 8.4
SMCJ15A/CA 0.2 1 15 16.7 17.6 1 24.4 64 0.092 32.5 308 46 8.8
SMCJ18A/CA 0.2 1 18 20.0 21.1 1 29.2 53 0.133 39.3 254 68 9.2
SMCJ20A/CA 0.2 1 20 22.2 23.4 1 32.4 48 0.163 42.8 234 78 9.4
SMCJ22A/CA 0.2 1 22 24.4 25.7 1 35.5 44 0.194 48.3 207 103 9.6
SMCJ24A/CA 0.2 1 24 26.7 28.1 1 38.9 40 0.235 50 200 102 9.6
SMCJ26A/CA 0.2 1 26 28.9 30.4 1 42.1 37 0.275 53.5 187 115 9.7
SMCJ28A/CA 0.2 1 28 31.1 32.7 1 45.4 34 0.325 59 169 146 9.8
SMCJ30A/CA 0.2 1 30 33.3 35.1 1 48.4 32 0.361 64.3 156 176 9.9
SMCJ33A/CA 0.2 1 33 36.7 38.6 1 53.3 29 0.440 69.7 143 204 10.0
SMCJ40A/CA 0.2 1 40 44.4 46.7 1 64.5 24 0.644 84 119 294 10.1
SMCJ48A/CA 0.2 1 48 53.3 56.1 1 77.4 20 0.925 100 100 411 10.3
SMCJ58A/CA 0.2 1 58 64.4 67.8 1 93.6 16 1.40 121 83 600 10.4
SMCJ70A/CA 0.2 1 70 77.8 81.9 1 113 13.9 1.94 146 69 870 10.5
SMCJ85A/CA 0.2 1 85 94 99 1 137 11.5 2.87 178 56 1322 10.6
SMCJ100A/CA 0.2 1 100 111 117 1 162 9.7 4.04 212 47 1897 10.7
SMCJ130A/CA 0.2 1 130 144 152 1 209 7.5 6.59 265 38 2774 10.8
SMCJ154A/CA 0.2 1 154 171 180 1 246 6.1 9.34 317 31.5 4063 10.8
SMCJ170A/CA 0.2 1 170 189 199 1 275 5.7 11.6 353 28 5145 10.8
SMCJ188A/CA 0.2 1 188 209 220 1 328 4.6 21.1 388 26 6038 10.8