Littelfuse SMF Series - Manual (Page 5)

Transient Voltage Suppression Diodes
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/20/14
Surface Mount – 200W > SMF Series
Physical Specifications
Case
SOD-123F plastic over glass passivated
junction
Polarity Color band denotes cathode except bipolar
Terminal
Matte tin-plated leads, solderable per
JESD22-B102
Environmental Specifications
High Temp. Storage JESD22-A103
HTRB JESD22-A108
Temperature Cycling JESD22-A104
MSL JEDEC-J-STD-020, Level 1
H3TRB JESD22-A101
RSH JESD22-B106
Soldering Parameters
Te
mperature (T
)
Time (t)
T
s(min)
T
s(max)
T
L
T
P
t
s
Preheat
t
L
t
p
Ramp-up Critical Zone
T
L to T P
Ramp-down
t 25˚C to Peak
25˚C
Reflow Condition Lead–free assembly
Pre Heat
- Temperature Min (T
s(min)
) 150°C
- Temperature Max (T
s(max)
) 200°C
- Time (min to max) (t
s
) 60 – 180 secs
Average ramp up rate (Liquidus Temp
(T
L
) to peak
3°C/second max
T
S(max)
to T
L
- Ramp-up Rate 3°C/second max
Reflow
- Temperature (T
L
) (Liquidus) 217°C
- Time (min to max) (t
s
) 60 – 150 seconds
Peak Temperature (T
P
) 260 +0/-5 °C
Time within 5°C of actual peak
Temperature (t
p
)
20 – 40 seconds
Ramp-down Rate 6°C/second max
Time 25°C to peak Temperature (T
P
) 8 minutes Max.
Do not exceed 260°C
Dimensions
-
SOD-123F Package
Dimensions
Millimeters Inches
Min Max Min Max
A 2.50 2.90 0.0984 0.1142
B 3.40 3.90 0.1339 0.1535
C 0.70 1.20 0.0275 0.0472
D 1.50 2.00 0.0591 0.0787
E 0.35 0.90 0.0138 0.0354
F 0.05 0.26 0.0020 0.0102
G 0.00 0.10 0.0000 0.0039
H 0.95 1.10 0.0374 0.0433
A B
C
D
E
E
F
H
G
1.6 (0.062) 1.3 (0.051)
1.4 (0.055)
Mounting Pad Layout