SMF5.0A(CA) - SMF170A(CA)
SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR
VOLTAGE RANGE: 5.0 - 17 0V
POWER: 200W a t t s
Features
!
For surface mounted applications
!
Low profile package
!
Low incremental surge resistance, excellent
clamping capability
!
200W peak pulse power capability with a 10/1000
µ
s
wave from,repetition rate (duty cycle):0.01%
!
High temperature soldering guaranteed:
260
℃/10
seconds, at terminals
B
C
E
Mechanical Data
!
Case: JEDEC SOD-123FL, molded plastic
over passivated chip
!
Polarity: Color band denotes positive end
( cathode ) except for bidirectional
!
Mounting position: Any
!
E
D
H
L
SOD-123FL
Dim Min Max Typ
A
3.58 3.72 3.65
3
B
2.72 2.78 2.75
C
1.77 1.83 1.80
D
1
1.02 1.08 1.05
E
0.097 1.03 1.00
H
0.13 0.17 0.15
L
0.53 0.57 0.55
All Dimensions in mm
Weight: 0.006 ounces, 0.02 gram
A
Maximum Ratings
T
A
= 25°C unless otherwise specified
Characteristic
Maximum P
PK
Dissipation (PW - 10/1000
μs)
Maximum P
PK
Dissipation @ Ta = 25 °C (PW - 8/10
μs)
(Note 2)
DC Power Dissipation @ Ta = 25 °C
Derate above 25 °C
Thermal Resistance, Junction to Ambient (Note 3)
Thermal Resistance, Junction to Lead (Note 3)
Operating Junction and Storage Temperature Range
Notes :
(1) Non−repetitive current pulse at Ta = 25°C, per waveform of Fig. 2.
Symbol
P
PK
P
PK
P
D
Value
200
1000
385
4.0
Unit
W
W
mW
mW/ °C
°C/W
°C/W
°C
(Note 3)
R
ӨJA
R
ӨJL
T
J
, T
STG
325
26
-55 to +150
(2) Non−repetitive current pulse at Ta = 25°C, per waveform of Fig. 5.
(3) Mounted with recommended minimum pad size, DC board FR
−4.
1 of 3
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FIG.1 - PULSE DERATING CURVE
FIG.2 - 10 x 1000
μs
PULSE WAVEFORM
PEAK PULSE DERATING IN % OF
PEAK POWER OR CURRENT
120
tr
100
80
60
40
20
0
0
25
50
75
100
125
150
Ta = 25 °C
100
Pulse Width (tp) is defined
as that point where the peak
current decays to 50% of I
RSM
tr
≤
10
μs
VALUE (%)
Peak Value - I
RSM
50
Half Value - I
RSM
2
tp
0
0
1
2
3
4
Ta, AMBIENT TEMPERATURE, (
°
C)
t, TIME (ms)
FIG.3 - STEADY STATE POWER DERATING
4.0
10000
FIG.4 - PULSE RATING CURVE
P
D
, STEADY STATE POWER
DISSIPATION (W)
3.0
Pp,PEAK POWER (W)
1000
2.0
100
1.0
10
0.1μs
0
25
50
75
100
125
150
175
1.0μs
10μs
100μs
1.0ms
10ms
tp, PULSE WIDTH
T
L
, LEAD TEMPERATURE (°C)
FIG.5 - 8 x 20
μs
PULSE WAVEFORM
FIG. 6 - CAPACITANCE VS. WORKING PEAK
REVERSE VOLTAGE
1000
Measured @ Zero Bias
% OF PEAK PULSE CURRENT
tr
100
Peak Value I
RSM
@ 8
μs
C, CAPACITANCE (pF)
Pulse Width (tp) is defined
as that point where the peak
current decays = 8
μs
100
50
Half Value I
RSM
/ 2 @ 20
μs
Measured @ 50 %V
RWM
tp
10
0
0
20
40
60
80
1
1
10
100
200
t, TIME (μs)
WORKING PEAK REVERSE VOLTAGE (V)
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