SMF4L Series
Working Voltage: 5.0 to 85V
Peak Pulse Power: 400 W
Features
●
●
Surface Mount
Transient Voltage Suppressors
SOD-123
0.114 2.90
0.102 2.60
Glass passivated chip
Maximum 400 W peak pulse power capability with a
10/1000 μs waveform, repetitive rate (duty cycle):0.01 %
Low leakage
Uni polar unit
Excellent clamping capability
Very fast response time
RoHS compliant
Case: Molded plastic
Epoxy: UL 94V-0 rate flame retardant
Lead: Solderable per MIL-STD-750, method 2026
Polarity: Color band denotes cathode end
Mounting position: Any
●
●
●
●
●
[
1.20
]
0.70
[ ]
0.075 1.90
0.063 1.60
[ ]
Mechanical Data
●
●
●
●
●
0.154 3.90
0.138 3.50
[ ]
0.051 1.30
0.037 0.95
[ ]
0.01 0.25
0.002 0.05
[ ]
0.039 1.00
0.023 0.60
[ ]
Dimensions : inch [ mm ]
Maximum Ratings(T
A
=25℃ unless otherwise noted)
Parameter
Peak power dissipation with a 10/1000μs waveform
(1)(3)
Peak pulse current with a 10/1000μs waveform
(1)
Symbol
P
PP
I
PP
P
D
I
FSM
V
F
T
J
, T
STG
Value
400
See Next Table
1.0
30
3.5
-55
to +150
Unit
W
A
W
A
V
°C
Power dissipation on infinite heatsink at T
L
= 75 °C
Peak forward surge current, 8.3 ms single half sine-wave unidirectional
(2)
only
Maximum instantaneous forward voltage at 25 A for unidirectional only
Operating junction and storage temperature range
Note:
(1)Non-repetitive current pulse per Fig.3 and derated above T
A
= 25 °C per Fig.1.
(2)Measured on 8.3 ms single half sine-wave or equivalent square wave, duty cycle = 4 pulses per minute maximum.
(3)SMF4L5.0A~SMF4L9.0A Peak Pulse Power Dissipation is 370W min, 400W typical @10/1000µs
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P. 1
SMF4L Series
Ratings and Characteristics Curves (T
A
=25℃ unless otherwise noted)
Peak Pulse Derating in Percentage of Peak Power or
Current, (%)
100
AMBIENT TEMPERATURE , (℃) CURRENT, (A)
AVERAGE FORWARD
40
0
75
100
25
150
100
0
Peak Forward Surge Current, (A)
1
30
30
9
100
T
J
= T
J
max.
8.3 ms Single Half Sine-Wave
50
20
25
10
0
0
25
50
75
100
125
150
175
200
0
1
10
Number of Cycles at 60 Hz
100
Ambient Temperature ,T
A
(℃)
Fig. 1 - Pulse Derating Curve
10000
Fig. 2 - Maximum Non-Repetitive
Surge Current
Uni-directional @zero
bias
Tr=10μs
100
Peak Pulse Current , (% )
Peak Value
(Ipp)
T
J
= 25
°C
Pulse Width (td) is defined as the point where
the peak current decays to 50 % of Ipp
6.5
1000
Junction Capacitance,C
J
(pF)
100.0
100.0
450.0
18.0
450.0
Uni-directional @V
2.0
100.0
20.0
RWM
0
0
1628.0
5.0
1000.0
5.0
700.0
6.5
0.2
Half Value = Ipp
2
50
100
76
50
33
23
13
10
0.5
1
1.5
100
10/1000 μsec.
Waveform
2
as defined by R.E.A.
td
3
4
10
962.0
T
J
=25
°C
f=1.0MHz
Vsig=50mVp-p
1
4
0
0
1
2
Time , (ms)
3
1
10
Reverse Breakdown Voltage,V
BR
(V)
100
Fig. 3 - Pulse Waveform
10
Fig. 4 - Typical Junction Capacitance
Peak Power (kW)
1
0.1
0.1
1
10
Pulse Width ,t
d
(μs)
100
1000
Fig. 5 - Steady State Power Derating Curve
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P. 2
DSP and ARM Processors
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