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: MICRO2 (Silver Plated) 32 VDC MICRO2 Sn (Tin Plated) 32 VDC Interrupting Ratings: 1000A @ 32 VDC 1000A @ 32 VDC *Component Level Temperature Range: **System Level Temperature Range: -40˚C to +125˚C -40˚C to +105˚C -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 Housing Material: Conforms to: PA66 PA66 SAE 2741 and ISO 8820-4 in reference to electrical, mechanical and environmental performance requirements Ordering Information MICRO2 Sn (Tin plated) Blade Fuses Sn plated zinc alloy Time-Current Characteristics TM Part Number Package Size % of Rating Opening Time Min / Max 0327xxx.YX2S 4000 110 100 h / – 0327xxx.UXS 500 135 0.75 sec / 120 sec 0327xxx.LXS 50 160 0.30 sec / 50 sec MICRO2 Sn Fuse 0327xxx.YX2T Dimensions Dimensions in mm 4000 Ratings Part Number Current Rating Housing (A) Material Color 200 0.15 sec / 5 sec 350 0.04 sec / 0.50 sec 600 0.02 sec / 0.100 sec Typ. Voltage Drop (mV) Cold Resistance (mΩ) I2t (A2s) 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 MICRO2 Fuse Preliminary Time-Current Characteristics Time-Current Characteristic Curves Temperature Rerating Curve July 2008 100.00 5 10.00 7.5 Time (s) 10 15 20 25 1.00 30 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 10 100 1000 Current (A) Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not 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 product 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 product documentation. littelfuse.com 2