977 LITTELFUSE | Alldatasheet
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Description
E Agency Approvals Agency Agency File Number Ampere Range PS E Cartridge Certificates: /#,+1" /#,+1$ /#,+1" Leaded Certificates: /#,+1# /#,+1% /#,+1# "o" "o" "o" "o" Cartridge Certificates: Leaded Certificates: N"o" N"o" N"o" Electrical Characteristics for Series % of Ampere Rating Ampere Rating Opening Time N"oN" NJOVUFT .JOJNVN "o" NJOVUFT .JOJNVN "o" NJOVUFT .JOJNVN "o" NJOVUFT .JOJNVN N"oN" NJOVUFT .BYJNVN "o" NJOVUFT .BYJNVN "o" NJOVUFT .BYJNVN "o" NJOVUFT .BYJNVN N"oN" NT.JO TFDT.BY "o" NT.JO TFDT.BY "o" NT.JO TFDT.BY "o" NT.JO TFDT.BY N"oN" NT .JO TFDT.BY "o" NT .JO TFDT.BY "o" NT .JO TFDT.BY "o" NT .JO TFDT.BY N"oN" NT .JO NT .BY "o" NT .JO NT .BY "o" NT .JO NT .BY "o" NT .JO NT .BY Revised: November 18, 2010
Introduction to Circuit ProtectionIntroduction to Circuit Protection Transientology 2 © 2010 Littelfuse, Inc. Specifications are subject to change without notice. Axial Lead and Cartridge Fuses 5x20mm > Time-Lag > 977 Series
977 Series
Please refer to www.littelfuse.com/series/977.html for current information. Average Time Current CurvesT emperature Rerating Curve 0.001 0.01 0.1 100 1000 10000 0.01 0.1 1 977.500 10 100 1000 9773.15 977.800 977002 977008 97706.3 977005 977004 977010 977012 977016 Current in Amperes Time in Seconds Amp Code Amp Rating Voltage Rating Interrupting Rating Nominal Cold Resistance (milli-ohms) Nominal Melting I2t (A2 sec.) Agency Approvals AC DC .500 0.5 500 450 "!7BD "!7ED 0.3 x 500 450 x 002. 2 500 450 44.5 xx 500 450 xx 004. 4 500 450 xx 005. 5 500 450 xx 500 450 xx 500 450 233 x x 500 450 x 500 450 x 500 450 x Electrical Characteristic PS E
3© 2010 Littelfuse, Inc. Specifications are subject to change without notice. Axial Lead and Cartridge Fuses 5x20mm > Time-Lag > 977 Series Please refer to www.littelfuse.com/series/977.html for current information. 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: %FQFOETPO'MVY"DUJWBUJPO5FNQFSBUVSF 5ZQJDBM*OEVTUSZ3FDPNNFOEBUJPO 5FNQFSBUVSF.JOJNVN ° C 5FNQFSBUVSF.BYJNVN ° C 1SFIFBU5JNF TFDPOET Solder Pot Temperature: ° $.BYJNVN Solder Dwell Time: 2-5 seconds Recommended Hand-Solder Parameters: Solder Iron Temperature: 350° C +/- 5°C Heating Time: 5 seconds max. Note: These devices are not recommended for IR or Convection Reflow process. Recommended Process Parameters: Materials Body: Ceramic Cap:/JDLFMoQMBUFE#SBTT Leads:5JOoQMBUFE$PQQFS T erminal Strength .*-45%( .FUIPE" 5FTU $POEJUJPO" Solderability 3FGFSFODF*&$4FDPOE&EJUJPO "OOFY" Product Marking Cap 1:#SBOEMPHP DVSSFOUBOEWPMUBHF ratings Cap 2:4FSJFTBOEBHFODZBQQSPWBM NBSLJOHT Product Characteristics Operating Temperature o$UP Thermal Shock .*-45%( .FUIPE( 5FTU $POEJUJPO# DZDMFT o$UP Vibration .*-45%( .FUIPE" Humidity .*-45%( .FUIPE# 5FTU $POEJUJPO" )JHI3) BOE FMFWBUFEUFNQ $ GPSIPVST Salt Spray .*-45%( .FUIPE% 5FTU Condition B
Introduction to Circuit ProtectionIntroduction to Circuit Protection Transientology 4 © 2010 Littelfuse, Inc. Specifications are subject to change without notice. Axial Lead and Cartridge Fuses 5x20mm > Time-Lag > 977 Series Please refer to www.littelfuse.com/series/977.html for current information. Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code Reel Size #VML /" .9 /" #VML /" .9& /" Dimensions 0977000.XP 0977.500XEP to 0977.800XEP 0977002.XEP to 0977016.XEP * Ratings above 5A ø1 Lead. * For 977 16A ø1.2 Lead. ø6.0 MAX ø0.65* ø0.65* ø5.8 MAX Part Numbering System 0977 xxxx M X E P Series Amp Code Refer to Amp Code column of Electrical Characteristics Table P: Lead-free Quantity Code M = 1000 Option Codes E : Axial Leaded Fuse Others: Special options. Please call Littelfuse for detail. Packaging Code X = Filler