Axial Lead & Cartridge Fuses PICO® > Very Fast-Acting Fuse > 275 Series 275 Series, PICO® Very Fast-Acting Fuse RoHS Description The PICO® Very Fast-Acting Fuse is designed to meet an extensive array of performance characteristics in a space-saving subminiature package. Features • Very fast-acting • RoHS compliant • Small size • Wide operating temperature range • High current rating (20A- 30A) Applications Agency Approvals Agency • Low temperature rerating Agency File Number Ampere Range E10480 20A - 30A • Power supply • Networking equipment • PC server • Storage system Electrical Characteristics Additional Information Datasheet Resources % of Ampere Rating Ampere Rating 100% 20 - 30 4 Hours, Min. 200% 20 - 30 10 Seconds, Max. Opening Time Samples Electrical Characteristics Amp Code Ordering Number Max Voltage Rating (V) 20.0 020. 0275020. 32 25.0 025. 0275025. 32 30.0 030. 0275030. 32 Ampere Rating (A) © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Application testing is strongly recommended. Revised: 02/12/16 Interrupting Rating 300A@32VDC 100A@32VAC Agency Approvals Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2 sec) 0.0033 203 x 0.0024 288 x 0.0020 355 x Axial Lead & Cartridge Fuses PICO® > Very Fast-Acting Fuse > 275 Series Average Time Current Curves 20A 25A 30A Temperature Re-rating Curve 100 TIME IN SECONDS 10 1 0.1 Note: Rerating depicted in this curve is in addition to the standard derating of 25% for continuous operation. 0.01 Soldering Parameters Recommended Process Parameters: Wave Parameter Lead-Free Recommendation 0.001 0.05 0.1 1 10 100 CURRENT IN AMPERES 1000 Preheat: (Depends on Flux Activation Temperature) (Typical Industry Recommendation) Temperature Minimum: 100°C Temperature Maximum: Preheat Time: 150°C 60-180 seconds Solder Pot Temperature: 260°C Maximum Solder Dwell Time: 2-5 seconds Recommended Hand-Solder Parameters: Solder Iron Temperature: 350°C +/- 5°C Heating Time: 5 seconds max. Note: These devices are not recommended for IR or Convection Reflow process. © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/12/16 Axial Lead & Cartridge Fuses PICO® > Very Fast-Acting Fuse > 275 Series Product Characteristics Materials Transparent Polyvinylidene Fluoride sleeve covered body, pure tin plated copper wire leads Operating Temperature –55ºC to +125ºC (Consider re-rating) Solderability MIL-STD-202, Method 208 Shock Lead Pull Force MIL-STD-202, Method 211, Test Condition A (will withstand a 5lbs. axial pull test) MIL-STD-202, Method 213, Test Condition I (100 G’s peak for 6 milliseconds) and per method 2028 (78G’s peak for 11 milliseconds) Vibration MIL-STD-202, Method 201 (10–55 Hz); Method 204, Test Condition D (Vibrations of 10-2000 cps at 20 G’s) Moisture Resistance MIL-STD-202, Method 106 Part Numbering System Dimensions 0275 xxxx M R T1 L 275 000 Series B A B 275 C DIA. 3/4 A D Series Current Rating Refer to Amp Code column of Electrical Characteristics Table Transparent Insulating Sleeve Quantity M = 1000 V =5 Amperage 20 - 30 Type of Packaging Dimensions in mm (inches) A 7.87 (.31") B 27.78 (1.094") C 3.38 (.133") R = Reel X = Loose Pack D 1.016 (.040") Lead Length T1 = 52.4mm (2.062”) Blank = For Loose pack (MXL,VXL) RoHS Only RoHS parts are available for 275 Series Packaging Packaging Option T1: 52.4mm (2.062") Tape and Reel The default lead length for loose pack is T1. © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/12/16 Packaging Specification Quantity & Packaging Code EIA 296 Please refer to available quantities above in “Part Numbering System”