Axial Lead & Cartridge Fuses PICO(R) > Very Fast-Acting Fuse > 275 Series 275 Series, PICO(R) Very Fast-Acting Fuse RoHS Description The PICO(R) 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% 20A - 30A 4 Hours, Min. 200% 20A - 30A 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) 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 (c) 2018 Littelfuse, Inc. Application testing is strongly recommended. Specifications are subject to change without notice. Revised: 02/15/18 Axial Lead & Cartridge Fuses PICO(R) > 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 Preheat: (Depends on Flux Activation Temperature) (Typical Industry Recommendation) Temperature Minimum: 100C Temperature Maximum: Preheat Time: 150C 60-180 seconds Solder Pot Temperature: 260C Maximum Solder Dwell Time: 2-5 seconds Recommended Hand-Solder Parameters: Solder Iron Temperature: 350C +/- 5C Heating Time: 5 seconds max. Note: These devices are not recommended for IR or Convection Reflow process. (c) 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/15/18 0.001 0.05 0.1 1 10 100 CURRENT IN AMPERES 1000 Axial Lead & Cartridge Fuses PICO(R) > Very Fast-Acting Fuse > 275 Series Product Characteristics Materials Transparent Polyvinylidene Fluoride sleeve covered body, pure tin plated copper wire leads Operating Temperature -60C to +125C (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 Packaging Specification Quantity & Packaging Code EIA 296 Please refer to available quantities above in "Part Numbering System" The default lead length for loose pack is T1. Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics. (c) 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/15/18