Littelfuse 1KSMB Series - Manual (Page 5)

Transient Voltage Suppression Diodes
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/20/14
Surface Mount – 1000W > 1KSMB series
Physical Specifications
Weight
0.003 ounce, 0.093 grams
Case
JEDEC DO214AA. Molded plastic body
over glass passivated junction
Polarity
Color band denotes cathode except
Bidirectional.
Terminal
Matte Tin-plated leads, Solderable per
JESD22-B102
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 280°C
Dimensions
Inches Millimeters
Min Max Min Max
A 0.077 0.086 1.950 2.200
B 0.160 0.180 4.060 4.570
C 0.130 0.155 3.300 3.940
D 0.084 0.096 2.130 2.440
E 0.030 0.060 0.760 1.520
F - 0.008 - 0.203
G 0.205 0.220 5.210 5.590
H 0.006 0.012 0.152 0.305
I 0.089 - 2.260 -
J 0.085 - 2.160 -
K - 0.107 - 2.740
L 0.085 - 2.160 -
Dimensions
A
D
E
G
F
H
C
B
Cathode Band
(for Uni-directional products only)
DO-214AA (SMB J-Bend)
(all dimensions in mm)
I
L K J
Solder Pads
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