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surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse
product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages
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2
MICRO2™ Blade Fuses Rated 32V
The MICRO2™ Fuse is the new standard for vehicle circuit protection. Its sub-miniature
design meets the need for more circuits to be protected while utilizing less space and its
ability to cope with high temperatures in adverse environments makes the MICRO2™ Fuse of
recommended choice for protection.
Black amperage stamps are used on the 20A & 25A / light colored housings to improve
contrast for vision system inspection.
Blade Fuses
Specifications MICRO2 MICRO2 Sn
(Silver Plated) (Tin Plated)
Voltage Rating: 32 VDC 32 VDC
Interrupting Ratings: 1000A @ 32 VDC 1000A @ 32 VDC
*Component Level Temperature Range: -40˚C to +125˚C -40˚C to +105˚C
**System Level Temperature Range: -40˚C to +105˚C -40˚C to +85˚C
105°C and 85°C are typical system level temperature requirements.
Terminals: Ag plated zinc alloy Sn plated zinc alloy
Housing Material: PA66 PA66
Conforms to: SAE 2741 and ISO 8820-3 in reference to electrical, mechanical
and environmental performance requirements
MICRO2
TM
Sn
(Tin plated) Blade Fuses
MICRO2
TM
Blade Fuses
Dimensions
Dimensions in mm
Temperature Rerating Curve
Time-Current Characteristic Curves
Ordering Information
Part Number Package Size
0327xxx.YX2S 4000
0327xxx.UXS 500
0327xxx.LXS 50
MICRO2 Sn Fuse
0327xxx.YX2T 4000
Time-Current Characteristics
% of Rating Opening Time Min / Max
110 100 h / –
135 0.75 sec / 120 sec
160 0.30 sec / 50 sec
200 0.15 sec / 5 sec
350 0.04 sec / 0.50 sec
600 0.02 sec / 0.100 sec
Ratings
Part Number
Current Rating
(A)
Housing
Material Color
Typ. Voltage Drop
(mV)
Cold Resistance
(mΩ)
I
2
t
(A
2
s)
0327005._ 5 116 17.4 17
032707.5_ 7.5 106 10.8 47
0327010._ 10 102 7.7 89
0327015._ 15 94 4.9 189
0327020._ 20 91 3.5 397
0327025._ 25 90 2.6 585
0327030._ 30 88 2.1 1028
0.01
0.10
1.00
10.00
100.00
1 10 100 1000
MICRO2 Fuse Preliminary Time-Current Characteristics
July 2008
*Component Level Temperature =
the maximum ambient temperature
that a single fuse will survive. This
does not factor-in the heat from a
populated fuse box, but does include
the heat from the current load with
the proper rerating. **System Level
Temperature represents the ambient
temperature of the fuse box at a
location within the vehicle. The
temperature within a populated fuse
box (in a given location) will be
higher. The limiting factor is the
plating. Sn-plating’s temperature
limit is ≈130°C, and Ag-plating
allows up to 150°C at the terminal
interface.
