Datasheet

Characteristics SMM4F
2/10
1 Characteristics
Table 1. Absolute ratings (T
amb
= 25 °C)
Symbol Parameter Value Unit
V
PP
Peak pulse voltage (IEC 61000-4-2 contact discharge) 30 kV
P
PP
Peak pulse power dissipation
(1)
1. For a surge greater than the maximum values, the diode will fail in short-circuit.
T
j
initial = T
amb
400 W
P Power dissipation on infinite heatsink T
amb
= 125 °C 2.5 W
I
FSM
Non repetitive surge peak forward current
for unidirectional types
t
p
= 10 ms
T
j
initial = T
amb
30 A
T
stg
Storage temperature range -65 to +175 °C
T
j
Operating junction temperature range -55 to +175 °C
T
L
Maximum lead temperature for soldering during 10 s 260 °C
Table 2. Thermal resistances
Symbol Parameter Value Unit
R
th(j-l)
Junction to leads 20
°C/W
R
th(j-a)
Junction to ambient on PCB with recommended pad layout 250
Table 3. Electrical characteristics - parameter definitions (T
amb
= 25 °C)
Symbol Parameter
V
RM
Stand-off voltage
V
BR
Breakdown voltage
I
R
Breakdown current
V
CL
Clamping voltage
I
RM
Leakage current @ V
RM
I
PP
Peak pulse current
αT Voltage temperature coefficient
V
F
Forward voltage drop
R
D
Dynamic resistance
V
CL
V
BR
V
RM
I
RM
I
R
I
PP
V
I
I
F
V
F
V
CL
V
BR
V
RM
I
RM
I
R
I
PP
V
I
I
F
V
F