Datasheet

Characteristics SMTYF
2/8
1 Characteristics
Table 1. Absolute ratings (limiting values at 25 °C, unless otherwise specified)
Symbol Parameter Value Unit
V
PP
IEC 61000-4-2 standard
Air discharge
Contact discharge
15
8
kV
P
PP
Peak pulse power dissipation
(1)
T
j initial
= T
amb
600 W
I
FSM
Non repetitive surge peak forward current
t
p
= 10 ms
T
j
= T
initial
= T
amb
25 A
T
stg
Storage temperature range -65 to +175 °C
T
j Operating junction temperature range -40 to +175 °C
1. 10/1000 µs pulse waveform
Table 2. Thermal resistance
Symbol Parameter Value Unit
R
th(j-l)
Junction to leads 20 °C/W
Table 3. Electrical characteristics - parameters (T
amb
= 25 °C)
Symbol Parameter
V
BR
Breakdown voltage
I
RM
Leakage current @ V
RM
V
RM
Stand-off voltage
V
CL
Clamping voltage
R
d
Dynamic resistance
I
PP
Peak pulse current
C Capacitance
I
I
F
V
F
V
CL
V
BR
V
RM
I
PP
I
RM
V
I
R
Table 4. Electrical characteristics - values (T
amb
= 25 °C)
Type
V
F
max
(I
F
= 0.85 A)
I
RM
max@V
RM
V
BR
@I
R
(1)
V
CL
@I
PP
10/1000 µs
R
D
(2)
10/1000 µs
V
CL
@I
PP
8/20 µs
R
D
(2)
8/20 µs
αT
(3)
25 °C 85 °C min typ max max max max
VµA (max)V VmAVAΩ VA Ω 10-4/°C
SMTYF5.0A 0.48 10 500 5 6.40 6.74 7.07 10 9.2 68 0.029 13.4 298 0.021 5.7
SMTYF12A 0.48 20 1200 12 13.2 13.7 14.3 1 18.5 31 0.129 22.9 157 0.055 7.8
1. Pulse test: t
p
<50ms.
2. To calculate maximum clamping voltage at other surge currents, use the following formula
V
CLmax
= R
D
x I
PP
+ V
BRmax
3. To calculate V
BR
versus junction temperature, use the following formula:
V
BR
@ T
j
= V
BR
@ 25 °C x (1 + αT x (T
j
- 25))