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© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/03/17
Surface Mount Fuses
NANO
2®
> 154 OMNI-BLOK
®
Fuse and Holder Combination
L
F
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
Temperature
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 015401.5D R T.
(1 amp product shown
above).
TYPE Code
“L” suffix for Black Color Holder
“G” suffix for 451L and 452L Fuses
(Au-Plated Caps)
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
Datasheet
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and
test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.
Additional Information
Samples
Resources