
374
www.littelfuse.com
For NANO
2
Surface Mount Fuses
Fuse Blocks and Clips
SMF OMNI-BLOK
Fuse Block
Molded Base Type 154 Series
With Very Fast-Acting Fuse Installed
Catalog
Number
154
.062
154
.125
154
.250
154
.375
154
.500
154
.750
154
001
154
01.5
154
002
154
02.5
154
003
154
03.5
154
004
154
005
154
007
154
008
154
010
With Slo-Blo
Fuse Installed
Catalog
Number
154
.375T
154
.500T
154
.750T
154
001T
154
01.5T
154
002T
154
02.5T
154
003T
154
03.5T
154
004T
154
005T
Ampere
Rating
1/16
1/8
1/4
3/8
1/2
3/4
1
1.5
2
2.5
3
3.5
4
5
7
8
10
Fuse
Furnished
1
0453
.062
0453
.125
0453
.250
0453
.375
0453
.500
0453
.750
0453
001.
0453
01.5
0453
002.
0453
02.5
0453
003.
0453
03.5
0453
004.
0453
005.
0453
007.
0453
008.
0453
010.
Ampere
Rating
3/8
1/2
3/4
1
1
1
/
2
2
2
1
/
2
3
3
1
/
2
4
5
Fuse
Furnished
2
0454
.375
0454
.500
0454
.750
0454
001.
0454
01.5
0454
002.
0454
02.5
0454
003.
0454
03.5
0454
004.
0454
005.
1
453 Series Fuse has silver plated end caps, installed to accommodate solder reflow process.
Use either 451 or 453 Series for replacement purposes, page 371.
2
454 Series Fuse has silver plated end caps, installed to accommodate solder reflow process.
Use either 452 or 454 Series for replacement purposes, page 372.
The SMF Omni-Blok
Fuseholder permits quick and easy replacement
of Nano
2
SMF surface mount fuses.The fuse block and pre-installed
fuse combination can be placed on the PC board in one efficient
manufacturing operation. Fuse replacement is accomplished without
exposing the PC board to the detrimental effects of solder heat. Refer
to notes 1 and 2, below, for fuse/fuseholder combinations available.
APPROVALS:
Recognized under the Components Program of
Underwriters Laboratories and Certified by CSA.
SPECIFICATIONS:
Electrical:
8 Amperes, 125 Volts.
Molded Parts:
Thermoplastic (94V0).
Terminals:
Tin/Lead Alloy Plated Beryllium Copper.
Ambient Temperature:
–
55
°
C to +125
°
C.
Shock:
MIL-STD-202, Method 213, Test Condition I
(100 G
’
s peak for 6 milliseconds).
Vibration:
MIL-STD-202, Method 201 (10
–
55 Hz).
Thermal Shock:
MIL-STD-202, Method 107, Condition A
(200 cycles: 30 minutes at
–
55
°
C, 30 minutes at 125
°
C).
Soldering Parameters (Fuse Installed):
Reflow
—
154 000:
500
°
F (260
°
C), 30 sec.
154 000T:
445
°
F (230
°
C), 30 sec.
Solderability:
MIL-STD-202, Method 208.
Packaging:
16mm Tape and Reel for use with automatic pick and
place equipment per EIA Standard 481; 1,500 per reel, add suffix DR.
PATENTED
ORDERING INFORMATION:
LF
7A
L
9.73
F
3.81
(.150")
2.13
(.084")
REF.
10.62
(.418")
4.24
(.167")
(.383") REF.
3.81
(.150")
5.03
(.198")
1
5
5
FUSE
Recommended Pad Layout