For NANO2® Surface Mount Fuses
.35"
REF.
.50"
REF.
.81"
REF.
.04"
REF.
.19"
REF.
.730"
±.005"
.050"
.055" DIA. HOLES
(2 LOCATIONS)
Recommended Hole Pattern
1.22"
REF.
.70"
REF.
.24" REF.
.53"
REF.
.016"
REF.
45
B
.450"
centers typ.
.70" typ.
.190" x .187" deep
C bore with .050"
material remaining .090" REF. DIA. Thru
Solder type terminals
feature elongated
hole on clip
With 2AG
fuse installed
.35" typ.
.110" typ.
.50" typ.
Solder & Q.C. Types:
®
®
This low profile Omni-Blok®Fuse Block design is available with a
choice of solder type terminals, Q.C. terminals or P.C. board mountable
terminals. The PCB design is offered with either tin-plated brass termi-
nals for normal applications or tin-plated beryllium copper terminals for
use in caustic environments. These fuse blocks feature individual barriers
which reinforce the fuse clips while providing greater protection against
clip damage and electrical shock. The unique design permits self-
alignment of clips to fuse cap. This, plus a one-piece clip/terminal
assures low contact resistance. Multiple pole units may be broken
apart to obtain desired number of poles.
APPROVALS: Recognized under the Components Program of
Underwriters Laboratories and Certified by CSA.
SPECIFICATIONS:
Electrical: Solder Type — 10A, 300V.
Q.C. Type — 10A, 300V.
PCB Type — 10A, 300V.
Dielectric Strength: 1500V., Minimum.
Clip/Terminals: Tin-Plated Spring Brass, except pn 254121 is
Tin-Plated Beryllium Copper.
Base: Black Thermoplastic, glass reinforced with UL 94V0
flammability rating.
Ambient Temperature: –40°C to +85°C.
OPTIONS:
1. Other colors available on special order. Contact factory.
2. Two different style clips can be supplied for circuit identity or
polarization. Contact factory.
PATENTED
ORDERING INFORMATION:
P.C. Board Mount Type:
Catalog Number Typical
Solder Type Number Overall Clip/
Terminals of Poles Width (B) Terminals
254 001 1 0.35" Brass
254 002 2 0.80" Brass
254 003 3 1.25" Brass
254 004 4 1.70" Brass
254 005 5 2.15" Brass
254 006 6 2.60" Brass
254 007 7 3.05" Brass
254 008 8 3.50" Brass
Typical
NEMA Style Number Overall Clip/
.110" Q.C. Terminals of Poles Width (B) Terminals
254 201 1 0.35" Brass
254 202 2 0.80" Brass
254 203 3 1.25" Brass
254 204 4 1.70" Brass
254 205 5 2.15" Brass
254 206 6 2.60" Brass
254 207 7 3.05" Brass
254 208 8 3.50" Brass
Typical
P.C. Number Overall Clip/
Board Mount of Poles Width (B) Terminals
254 101 1 0.35" Brass
254 121 1 0.35" Beryllium Copper
OMNI-BLOK®Fuse Block Molded Base Type
Fuse Blocks and Clips
348 www.littelfuse.com
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