Contents PAGE FUSE TERMINOLOGY 01 - 02 I2t EXPLAINED 03 LIGHTNING SURGE WITHSTAND 04 FUSE SAFETY STANDARDS IEC 127, UL/CSA248 (sd m S r u ßpcc) 05 USER SELECTION GUIDE 06 - 08 SMD DIMENSIONAL COMPARISON SHEET 10 PRODUCTS FUSE TYPE PRODUCT DESCRIPTION SAFETY APPROVALS SSQC SSQ SST C1Q C1S C2Q SMP SURFACE MOUNT REPLACEABLE SSQ / SST WITH INTEGRAL CLIPS FAST ACTING, SQUARE CERAMIC, 2410 SIZE SLOW BLOW, SQUARE CERAMIC, 2410 SIZE u VERY FAST ACTING CHIP, 1206 SIZE SLOW BLOW CHIP, 1206 SIZE VERY FAST ACTING CHIP, 0603 SIZE TELECOM PROTECTION - 600V POWER CROSS / LIGHTNING WITHSTAND r ßc 09 11 - 12 13 - 14 15 - 16 17 - 18 19 - 20 21 - 22 IEC 250V RADIAL MRF MRT RST FAST ACTING, RADIAL LEAD MICRO TYPE TIME LAG, RADIAL LEAD MICRO TYPE TIME LAG, RADIAL LEAD MICRO SQUARE TYPE sd r Spcc 23 - 24 25 - 26 27 - 28 r ßc 29 - 30 31 - 32 UL / CSA 125V MICRO MQ MS QUICK ACTING, AXIAL LEAD MICRO TYPE SLOW BLOW, AXIAL LEAD MICRO TYPE UL / CSA 5 x 15 MM 2JQ / 3JQ 2JS / 3JS MJS QUICK ACTING, 350V, 2AG CARTRIDGE AND AXIAL LEAD TYPE SLOW BLOW, 350V, 2AG CARTRIDGE AND AXIAL LEAD TYPE LIGHTNING SURGE WITHSTAND r Su pßc 33 - 34 35 - 36 37 - 38 UL / CSA 4.6 x 19.5 MM RJS TELECOM PROTECTION SERIES, 600V LIGHTNING SURGE WITHSTAND, RADIAL LEAD r Sc 39 - 40 IEC 5 x 20 MM 5SF / 5SFP 5ST / 5STP 5HF / 5HFP 5HT / 5HTP 5VT / 5VTP 5ET / 5ETP QUICK ACT, LOW BREAK CAPACITY CARTRIDGE AND AXIAL LEAD TYPE TIME LAG, LOW BREAK CAPACITY CARTRIDGE AND AXIAL LEAD TYPE QUICK ACT, HIGH BREAK CAPACITY CARTRIDGE AND AXIAL LEAD TYPE TIME LAG, HIGH BREAK CAPACITY CARTRIDGE AND AXIAL LEAD TYPE TIME LAG, LOW BREAK CAPACITY, HIGH SURGE PROOF TIME LAG, ENHANCED BREAK CAPACITY, HIGH SURGE PROOF sd m r Sc cp 41 - 42 43 - 44 45 - 46 47 - 48 49 - 50 51 - 52 UL / CSA 5 x 20 MM 5MF / 5MFP 5MT / 5MTP 5TT / 5TTP FAST BLOW, CARTRIDGE AND PIGTAIL TYPE MEDIUM BLOW, CARTRIDGE AND PIGTAIL TYPE SLOW BLOW, CARTRIDGE AND PIGTAIL TYPE u r ßSpc 53 - 54 55 - 56 57 - 58 UL / CSA 1/4 x 1-1/4 INCH 3AG / 3AP 3AB / 3ABP 3SB / 3SBP GSA / GSAP FAST BLOW, GLASS CARTRIDGE AND PIGTAIL TYPE FAST BLOW, CERAMIC CARTRIDGE AND PIGTAIL TYPE SLOW BLOW, GLASS CARTRIDGE AND PIGTAIL TYPE SLOW BLOW, CERAMIC CARTRIDGE AND PIGTAIL TYPE VALUE - ADDED OPTIONS TAPE AND REEL INFORMATION CLIPS CROSS REFERENCE ORDERING INFORMATION u r ßSpc 59 - 60 61 - 62 63 - 64 65 - 66 67 - 68 68 69 70 71 - 72 ©2005 Bel Fuse Inc. Data subject to change without notice