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© 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/27/15 3.6 x 9mm > 777 Series

Description

Agency Agency File Number Ampere Range SU05024-13001 1 .25A E10480 1 .25A R 50267375 1 .25A PS E NBK111010-E10480 1 .25A CQC14012107199 1 .25A

777 Series Axial Lead Fuse

  • Enhanced inter rupting rating
  • Higher surge withst and capability
  • Compact 3.6 x 9mm f ootprint saves board space
  • Epo xy Coating

Applications

  • Smartphone and tablet w all-mount chargers
  • P ower Supplies for consumer electronics The 777 Series is an axial lead 3.6mm x9mm fuse, designed for overcurrent protection in electronic appliance charger applications. The robust design enables the device to withstand up to 24 hits of 7.5kV ringwave surge and, its epoxy coating helps open safely on a direct short condition without producing soot, sparks, sounds. The enhanced electrical characteristics of the 777 Series make it ideal for use in wall-mounted chargers for smartphones and tablets. This series provides protection from catastrophic failures and safety hazard when experiencing direct shorting on an AC plug. RoHS Additional Information Electrical Characteristics by Item Amp Code Voltage Rating Interrupting Rating Nominal Cold Resistance (Ohms) Nominal Melting l2t (A2 sec) Agency Approvals PS E 1 .25 250 V 50A @ 250 V AC 0.070 2.70 X X X X X Electrical Characteristics for Series % of Ampere Rating Opening Time 150% 1 hours, Minimum 275% 10 milliseconds, Minimum 3 seconds, Maximum PS E

© 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/27/15 3.6 x 9mm > 777 Series T emperature Rerating Curve Average Time Current Curves Soldering Parameters - Wave Soldering Dwell Time 100 120 140 160 180 200 220 240 260 280 300 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 Time (Seconds) Temperature (°C) - Measured on bottom side of board Cooling TimePreheat Time Wave Parameter Lead-Free Recommendation Preheat: (Depends on Flux Activation Temperature) (Typical Industry Recommendation) Temperature Minimum: 100° C Temperature Maximum: 150° C Preheat Time: 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 Refl ow process. Recommended Process Parameters:

© 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/27/15 3.6 x 9mm > 777 Series Part Numbering SystemDimensions Product Characteristics Materials Encapsulated, Epoxy Coated body Pure-Tin-coated Copper Lead Wire T erminal Strength MIL -STD-202F Method 21 1A, Test Condition A Solderability Reference IEC 60127 Second Edition 2003-01 Annex A Product Marking Body: Brand Logo, Current Rating Characteristic "F" rated voltage Packaging Tape & Reel (1000 pcs/reel) Operating T emperature -55°C to 125°C Thermal Shock MIL -STD-202F , Method 107G Test Condition B3 (5 cycles -65°C to +125°C) Vibration MIL -STD-202F , Method 201A (10-55 Hz) Humidty MIL -STD-202, Method 106, High Humidity (90-98%RH), Heat (65°C) Salt Spray MIL -STD-202F , Method 101D, Test Condition B All dimensions in mm 26mm9 mm 9mm 52.4 0.8 max. 5.00 6.35 0.6mm 3.6mm Lead-free Series Packaging Code R = Tape and reel Option Code E = Axial Leaded P = Lead-Free Others = Special Options Please call Littelfuse for detail Quantity Code M = 1000 Amp Code Refer to Amp Code column of Electrical Characteristics Table Lead Length T1 = Lead length 0777 1.25 M R E T1 P Packaging Packaging Option Packaging Specification Quantity Packaging Code Taping Width Tape & Reel EIA 296 1000 MRET1 T1 = 52mm (2.062)