rev. a sb98107 12-16-98 form no. 6125t page 1 of 2 bif doc #3007 bussmann electrical characteristics typ. resistance max. power dissipation part number current rating @ 2 10% rated @ 125% of rated current (xx=package code) (amperes) marking current (ohms) (milliwatts) xx/6125t-250ma .25 b.25 4.5 500 xx/6125t-500ma .5 b0.5 1.0 500 xx/6125t-1a 1 b1a 0.25 500 xx/6125t-1.5a 1.5 b1.5 0.10 500 xx/6125t-2a 2 b2a 0.06 500 xx/6125t-3a 3 b3a 0.04 1000 xx/6125t-4a 4 b4a 0.03 1200 xx/6125t-5a 5 b5a 0.02 1200 general notes: 1. device designed to carry 125% of rated current for one hour minimum. an operating current of 80% or less of rated current is r ecommended, with further derating required at elevated ambient temperatures. 2. all measurements made at 23 3? ambient temperature with the device mounted on a suitable circuit board trace. catalog symbol: 6125t time-lag voltage rating: 125v ac/dc interrupting rating: 50 amp ac, power factor = 1.0 50 amp dc, battery source physical size: eia socm-6125aa. 6.1 ? 2.5 ? 2.5 mm (l ? w ? h) agency approvals: universal modular fuse, iec127-4 ul recognition, std. 248-14, file e19180, guide jdyx2 csa certified, c22.2 no. 248.14, file 53787, class 1422-30 additional approvals pending general information: surge resistant time-lag fuse. brazed seals: body to end plates. compatible with wave soldering. excellent environmental integrity. economical overcurrent protection. time current characteristics: 125% of rating: carry 1 hour min. 200%: open within 2 minutes. 1000%: open within 0.01 to 0.1 seconds. smt time-lag fuse 6125t subminiature surface mount fuses r b1.5 1.50 0.20 (0.059 0.008) 6.10 0.20 (0.240 0.008) 2.50 0.15 (0.098 0.006) 2.50 0.15 (0.098 0.006) 1 23 4 5 1. brass end plate (one of two)*. 2. high temperature brazing alloy preform (one of two). 3. silver metallization*. 4. ceramic body. 5. spiral wound fusible element. *end terminations plated with ni and 90/10 sn/pb after assembly. dimensions - mm (inches) construction ce logo denotes compliance with european union low voltage directive (50-1000 vac, 75-1500 vdc). refer to bif document #8002 or contact bussmann application engineering at 314-527-1270 for more information. packaging and ordering information: tape and reel: standard 12mm tape, in compliance with eia-rs481 (equivalent to iec 286, part 3). product rated current symbol package code tr = 1,000 pieces on tape on a 178mm reel. sp = 50 pieces on tape in a plastic box. contact bussmann if other package quantities are required. 6125t (see table)
rev. a sb98107 12-16-98 smt time-lag fuse 6125t subminiature surface mount fuses form no. 6125t page 2 of 2 bif doc #3007 bussmann environmental specifications: operating temperature range: -65 to +125?, with proper derating. thermal shock: mil-std-202, method 107, test condition b (-65 to 125?), 1000 cycles, fuses soldered to fr-4 glass-epoxy circuit board. vibration: mil-std-202, method 204, test condition c (55 to 2000 hz, 10g). solderability: withstands 60 seconds above 200?, 260? maximum. moisture resistance: mil-std-202, method 106, 10 day cycle. solder leach resistance & terminal adhesion: eia - 576 (30 seconds submersion in 260? tin-lead solder). 6.86 (0.270) 3.15 (0.124) 1.96 (0.077) recommended land pattern - mm (inches) the only controlled copy of this bif document is the electronic read-only version located on the bussmann network drive. all ot her copies of this bif document are by definition uncontrolled. this bul- letin is intended to clearly present comprehensive product data and provide technical information that will help the end user w ith design applications. bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. bussmann also reserves the right to change or update, without notice, any technical information contained in this bulletin. once a product has been selected, it should be tested by the user in all possible applications. r
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