SM712 Datasheet, PDF (2/3 Pages) Semtech Corporation – Asymmetrical TVS Diode for Extended Common-Mode RS-485

SM712
Electrical Characteristics(TA=25°C unless otherwise specified)
Part Number
Device
Marking
Vc
IR
C
VRWM
VBR
IT
VC
μA
(Pf)
(V)
(V) (mA) @1A
(Max) (@A) ^{(Max) (Typ.)}
Pin 3 to
7
7.5
1
Pin 1/Pin 2
SM712 712
Pin 1 /
12
13.3
1
Pin 2 to Pin 2
Characteristic Curves
10
12
17
10
45
20
26
17
1
45
Fig1. 8/20µ s Pulse Waveform
Fig2. ESD Pulse Waveform (according to IEC 61000-4-2)
120
TEST
100%
100
t_r
Peak Value IPP _WAVEFORM
90%
PARAMETERS
t_r=8 s
80
td=20 s
60
40
td=t IPP/2
20
0
0
5
10
15
20
25 30
t - Time ( s)
10%
tr = 0.7~1ns
30ns
60ns
Time (ns)
Fig3. Power Derating Curve
110
100
90
80
70
60
50
40
30
20
10
0
0
25
50
75 100 125 150
Ambient Temperature –T_A (ºC)
Rev : 01.06.2014
2/3
www.leiditech.com