(1/2) 002-05 / 20070516 / e531_slf7028.fm ? all specifications are subject to change without notice. smd inductors(coils) for power line(wound, magnetic shielded) slf series slf7028 features the slf series are characterized by low profile, low dc resistance, and high current handling capacities. because they are magnetically shielded, these parts can be used in high-density mounting configurations. flat bottom surface ensures secure, reliable mounting. provided in embossed carrier tape packaging for use with automatic mounting machines. applications portable telephones, personal computers, hard disk drives, and other electronic equipment. specifications recommended reflow soldering conditions product identification (1) series name (2) dimensions (3) packaging style (4) inductance value (5) inductance tolerance (6) rated current (7) lead-free compatible product packaging style and quantities conformity to rohs directive operating temperature range ?20 to +85c [including self-temperature rise] storage temperature range ?40 to +85c[unit of products] 30s 120s preheating 5s natural cooling 250 5?c 230?c 180?c 150?c time ( s ) slf 7028 t- 3r3 m 1r6 - pf (1) (2) (3) (4) (5) (6) (7) 7028 7.0 7.0 2.8mm (l w t) t taping(reel) 3r3 3.3 h 100 10 h m20% 1r6 1.6a r88 0.88a pf lead-free compatible product packaging style quantity taping 1000 pieces/reel conformity to rohs directive: this means that, in conformity with eu directive 2002/95/ec, lead, cadmium, mercury, hexavalent chromium, and specific bromine-based flame retardants, pbb and pbde, have not been used, except for exempted applications.
(2/2) 002-05 / 20070516 / e531_slf7028.fm all specifications are subject to change without notice. shapes and dimensions/recommended pc board pattern electrical characteristics test equipment l: 4194a impedance/gain-phase analyzer hp, or equivalent (measured at 100khz/0.5v) rdc:matsushita,vp-2941a digital milliohm meter, or equivalent typical electrical characteristics inductance change vs. dc superposition characteristics inductance (h) inductance tolerance test frequency l (khz) dc resistance ( ? )20% rated current (a)max. part no. 3.3 20% 100 0.028 1.6 slf7028t-3r3m1r6-pf 4.7 20% 100 0.038 1.5 slf7028t-4r7m1r5-pf 6.8 20% 100 0.059 1.3 SLF7028T-6R8M1R3-PF 10 20% 100 0.083 1.1 slf7028t-100m1r1-pf 15 20% 100 0.11 0.88 slf7028t-150mr88-pf 22 20% 100 0.18 0.75 slf7028t-220mr75-pf 33 20% 100 0.24 0.65 slf7028t-330mr65-pf 47 20% 100 0.34 0.54 slf7028t-470mr54-pf 7 0.2 marking ( inductance code ) winding start mark 7 0.2 4.9typ. ( 0.9 ) weight: 0.4g dimensions in mm 2 0.1 2.8 0.2 0.1typ. 470 4.9 1.5 1.5 2.2 dc current ( a ) 0.01 3 1 100 1000 300 30 10 10000 3000 0.1 0.3 0.03 3 110 inductance ( h ) a l=0.1h c=20000 f specimen test circuit yhp model-4275a or equivalent dc universal bridge 10 h 15 h 22 h 33 h 47 h 3.3 h 4.7 h 6.8 h
|
