Blade Fuses
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.
Specifications
MICRO2
TM
Blade Fuses
Voltage Rating:
Interrupting Ratings:
*Component Level Temperature Range:
**System Level Temperature Range:
Terminals:
Housing Material:
Conforms to:
MICRO2
(Silver Plated)
32 VDC
1000A @ 32 VDC
-40˚C to +125˚C
-40˚C to +105˚C
Ag plated zinc alloy
MICRO2 Sn
(Tin Plated)
32 VDC
1000A @ 32 VDC
-40˚C to +105˚C
-40˚C to +85˚C
Sn plated zinc alloy
105°C and 85°C are typical system level temperature requirements.
PA66
PA66
SAE 2741 and ISO 8820-3 in reference to electrical, mechanical
and environmental performance requirements
Ordering Information
MICRO2
TM
Sn
(Tin plated) Blade Fuses
Part Number
0327xxx.YX2S
0327xxx.UXS
0327xxx.LXS
MICRO2 Sn Fuse
0327xxx.YX2T
4000
Package Size
4000
500
50
Time-Current Characteristics
% of Rating
110
135
160
200
350
600
Opening Time Min / Max
100 h / –
0.75 sec / 120 sec
0.30 sec / 50 sec
0.15 sec / 5 sec
0.04 sec / 0.50 sec
0.02 sec / 0.100 sec
Cold Resistance
(mΩ)
17.4
10.8
7.7
4.9
3.5
2.6
2.1
I
2
t
(A
2
s)
17
47
89
189
397
585
1028
Dimensions
Dimensions in mm
Ratings
Part Number
0327005._
032707.5_
0327010._
0327015._
0327020._
0327025._
0327030._
Current Rating
Housing
(A)
Material Color
5
7.5
10
15
20
25
30
MICRO2 Fuse Preliminary Time-Current Characteristics
July 2008
Typ. Voltage Drop
(mV)
116
106
102
94
91
90
88
Temperature Rerating Curve
Time-Current Characteristic Curves
100.00
5
10.00
Time (s)
7.5
10
15
20
25
30
1.00
0.10
*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.
0.01
1
10
Current (A)
100
1000
Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for
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
arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless
otherwise agreed by Littelfuse.
2
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