Surface mount fuses, Nano, 154 omni-blok – Littelfuse 154tl Series User Manual
Page 2: Fuse and holder combination
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© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Surface Mount Fuses
NANO
2®
> 154 OMNI-BLOK
®
Fuse and Holder Combination
LF
7 A
L F
3.81
(.150")
2.13
(.084")
REF.
10.62
(.418")
4.24
(.167")
9.73
(.383") REF.
3.81
(.150")
5.03
(.198")
1 5 5
FUSE
Recommended Pad Layout
Dimensions
Packaging
packaging Option
packaging Specification
Quantity
Quantity &
packaging Code
Reel Pack
EIA RS–481–2 (IEC 286, part 3)
1500
DR
Soldering Parameters
Time
Te
mperatur
e
T
P
T
L
T
S(max)
T
S(min)
25
t
P
t
L
t
S
time to peak temperature
(t 25ºC to peak)
Ramp-down
Ramp-up
Preheat
Critical Zone
T
L
to T
P
Part Numbering System
0154 001. D R T L
SERIES
AMP Code
qUANTITY Code
PACKAGING Code
Refer to Ordering information
section on previous page.
D = 1500 pcs
R = Tape and Reel
Example:
1.5 amp Fast-acting
product is 015401.5DR.
1.5 amp Time-lag product
is 015401.5DRT.
(1 amp product shown
above).
TYPE Code
“L” suffix for
Black Color Holder
T = Time-Lag (Slo-Blo
®
)
Reflow Condition
Pb – 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 – 120 seconds
Average Ramp-up Rate (liquidus Temp
(T
l
) to peak)
5°C/second max.
T
S(max)
to T
l
- Ramp-up Rate
5°C/second max.
Reflow
- Temperature (T
l
) (liquidus)
217°C
- Temperature (t
l
)
60 – 90 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
5°C/second max.
Time 25°C to peak Temperature (T
p
)
8 minutes max.
Do not exceed
260°C
Product Characteristics
Operating
Temperature
-55ºC to 125ºC
Additional Information