Datasheet

SM30TY Characteristics
Doc ID 022065 Rev 2 3/13
Table 2. Electrical characteristics, parameter values (T
amb
= 25 °C)
Order code
I
RM
max @ V
RM
V
BR
@ I
R
(1)
V
CL
@ I
PP
10/1000 µs
R
D
10/1000 µs
V
CL
@ I
PP
8/20 µs
R
D
8/20 µs
αT
(2)
min typ max max max max
µA V V mA V
(3)
A
(4)
Ω V
(3)
A
(4)
Ω
10-4/
°C
SM30T18AY/CAY 0.2 15 16.7 17.6 18.5 1 24.4 123.0 0.055 30.0 910 0.014 8.8
SM30T19AY/CAY 0.2 16 17.8 18.7 19.6 1 26.0 115.4 0.063 31.5 870 0.015 8.8
SM30T21AY/CAY 0.2 18 20 21.1 22.2 1 29.2 102.7 0.079 35.0 790 0.018 9.2
SM30T23AY/CAY 0.2 20 22.2 23.4 24.6 1 32.4 92.6 0.097 37.5 730 0.019 9.4
SM30T26AY/CAY 0.2 22 24.4 25.7 27.0 1 35.5 84.5 0.116 40.5 680 0.022 9.6
SM30T28AY/CAY 0.2 24 26.7 28.1 29.5 1 38.9 77.1 0.140 43.9 630 0.025 9.6
SM30T30AY/CAY 0.2 26 28.9 30.4 31.9 1 42.1 71.3 0.164 47.0 600 0.028 9.7
SM30T33AY/CAY 0.2 28 31.1 32.7 34.3 1 45.4 66.1 0.192 50.0 560 0.031 9.8
SM30T35AY/CAY 0.2 30 33.3 35.1 36.9 1 48.4 62.0 0.215 53.0 530 0.034 9.9
SM30T39AY/CAY 0.2 33 36.7 38.6 40.5 1 53.3 56.3 0.261 58.0 490 0.040 10
1. Pulse test: t
p
< 50 ms
2. To calculate maximum clamping voltage at other surge level, use the following formula: V
CL
max = V
CL
- R
D
x (I
PP
- I
PPappli
)
where I
PP
appli is the surge current in the application
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 + T x (T
J
- 25))
V
CL
@ T
J
= V
CL
@ 25 °C x (1 + T x (T
J
- 25))
4. Surge capability given for both directions for unidirectional and bidirectional types.