document number 28526 for technical questions contact: dc-film@vishay.com www.vishay.com revision: 11-oct-07 311 bfc2 808 ..... vishay bccomponents ? 5 mm film dielectric trimmers features ? housing diameter 5 mm ? top and bottom or top adjustment ? round head ? vertical version applications ? for consumer and industrial equipment description: the vanes of the trimmer are stacked on a sturdy plastic base. the color of the ba se indicates the maximum capacitance (see electrical data tables). the dielectric is a film of polypropylene (pp) or polytetrafluorethylene (ptfe) for the standard versions and polycarbonate (pc) for the economic and hexagonal head versions. the dielectric supports the vanes in such a way that good stability is ensured and no microphony can occur. flux absorption between the vanes is prevented. cleaning with solvents is not advised. quality level: sampling and data evaluation for quality level in accordance with ?mil-std-105d? and ?iec 60410? : < 0.15 % major defects < 0.65 % minor defects each capacitor is tested for minimum c max and is also subjected to the full test voltage. c min /c max : 0.35/1.5 to 4/27 pf rated voltage (dc): 150 v test voltage (dc) for 1 minute: 300 v life of trimmer: maximum 10 cycles: rotation in 180 only (the electrical and mechanical performance is not guaranteed if rotated beyond 10 cycles) test voltage (dc) for 1 minute: 300 v maximum contact resistance: 10 m minimum insulation resistance: 10 000 m category temperature range: pp - 40 to + 70 c pc, ptfe - 40 to + 85 c climatic category (iec 60068): pp 40/070/21 pc, ptfe 40/085/21 minimum storage temperature: - 55 c related specification: iec 60418-1 and 4 effective angle of rotation: 180 (rotation in 180 only, see ?life of trimmer?) operating torque: c max < 20 pf 1 to 15 mnm c max 20 pf 1 to 25 mnm maximum axial thrust: 2 n rohs compliant p b -free e3
www.vishay.com for technical questi ons contact: dc-film@vishay.com document number 28526 312 revision: 11-oct-07 bfc2 808 ..... vishay bccomponents ? 5 mm film dielectric trimmers standard versions; capacitance and relevant physical dimensions economic versions; relevant physical dimensions 3 + 0.7 - 0.5 0.3 + 0.1 0 0.4 + 0.2 0 1.15 max. 5.6 0.2 2.2 0.2 3 0.5 5.1 0.2 1.6 0.2 l w h ? 2.2 0.6 1) 1) 0.5 1.3 p trimmers bfc2 808 ..... series, with round head hole pattern dimensions in millimeters c min /c max (pf) h max (mm) w max (mm) l max (mm) 0.35/1.5 7.0 5.5 7.3 1.5/5 7.0 5.5 7.3 3/10 7.0 5.5 7.3 3/15 8.8 5.5 7.3 4/20 8.8 5.5 7.3 4/27 9.0 6.2 7.8 type of head h max (mm) w max (mm) l max (mm) round 7.7 5.5 7.3
document number 28526 for technical questions contact: dc-film@vishay.com www.vishay.com revision: 11-oct-07 313 bfc2 808 ..... ? 5 mm film dielectric trimmers vishay bccomponents mounting the trimmer has a lead pitch of 5.08 mm or 5.6 mm and can be mounted on printed-circuit boards with a minimum hole diameter of 1.25 mm. packaging bulk packaged in cardboard boxes lined with expanded plastic, 1000 units per box. ordering information electrical data standard versions with round head note: 1. c: 60 % to 80 % of c max ; t amb : from + 20 c to + 70 c c min /c max (pf) catalog number bfc2 808 ..... top and bottom adjustment (p = 5.6 mm) top adjustment only (p = 5.6 mm) top adjustment only (p = 5.08 mm) standard versions: polytetrafluorethylene, round head 0.35/1.5 22158 - - standard versions: polypropylene, round head 1.2/5 - 24508 - 1.5/5 23508 - 20508 1.5/7 - 24708 - 3/10 23109 - 20109 3/15 23159 - 20159 4/20 23209 - 20209 4/27 23279 - 20279 economic versions: polycarbonate, round head 1.5/7 - 20126 - 1.6/15 - 20127 - 3/20 - 20123 - 3.5/27 - 20128 - guaranteed max. c min / min. c max at 200 khz (pf) tan at c max x10 -4 temp. coeff. 1) (10 -6 /k) min. f res at c max (mhz) colour of base smallest packaging quantity catalog number bfc2 ... ..... 1 mhz 100 mhz 0.35/1.5 10 - - 450 550 - - 1000 .... 808 22158 1.2/5 10 - - 200 550 - grey 1000 .... 808 24508 1.5/5 10 25 - 200 550 700 grey 1000 .... 808 20508 .... 808 23508 1.5/7 10 - - 50 550 - grey 1000 .... 808 24708 3/10 10 25 - 250 550 500 yellow 1000 .... 808 20109 .... 808 23109 3/15 10 25 - 250 550 400 blue 1000 .... 808 20159 .... 808 23159 4/20 10 25 - 250 400 300 green 1000 .... 808 20209 .... 808 23209 4/27 10 25 - 250 400 300 red 1000 .... 808 20279 .... 808 23279
www.vishay.com for technical questi ons contact: dc-film@vishay.com document number 28526 314 revision: 11-oct-07 bfc2 808 ..... vishay bccomponents ? 5 mm film dielectric trimmers economic versions with round head test procedures and requirements reference c min /c max (pf) tan at c max x10 -4 (1 mhz) temp. coeff. (10 -6 /k) colour of base smallest packaging quantity catalog number bfc2 ... ..... 1.5/7 70 - 50 550 grey 1000 .... 808 20126 1.6/15 70 - 50 550 blue 1000 .... 808 20127 3/20 70 - 50 550 green 1000 .... 808 20123 3.5/27 70 - 100 400 red 1000 .... 808 20128 iec 60418-1 clause iec 60068 test method test procedure requirements 4.2 method of mounting method a 14 capacitance drift after tc measurement c/c: 3 % for c max 10 pf c/c: 2 % for c max >10pf 19 thrust axial thrust of 2 n c/c: 0.4 % 21 robustness of terminations: 21.1 ua tensile 1 n no damage 21.2 ub bending 1 cycle no damage 22 na rapid change of temperature 1 cycle; 0.5 hours at lower and 0.5 hours at upper category temperature c/c: 2.5 % 23 t soldering: ta solderability solder bath immersion 3 mm; 235 c; 2 s good wetting no mechanical damage tb resistance to heat solder bath: 260 c; 10 s no mechanical damage 24 eb impact bump 4000 10 bumps; 40 g; 6 ms c/c: 1 %; no mechanical damage 25 fc vibration frequency 10 to 55 hz; amplitude 0.75 mm; 1.5 hours c/c: 1 %; no mechanical damage 26 climatic sequence: c/c: 4 % 26.1 b dry heat 16 hours at upper category temperature tan or pp and ptfe foil: 15 x 10 -4 tan for pc foil: 80 x 10 -4 r ins : 10 000 m rotor contact r: 10 m 26.2 d damp heat accelerated, first cycle 1 cycle; 24 hours; + 40 c; 95 to 100 % rh voltage proof: 300 v for 1 minute 26.3 aa cold 16 hours; - 40 c visual examination: no mechanical damage 26.5 damp heat accelerated, remaining cycles 1 cycle; 24 hours; + 40 c; 95 to 100% rh operating torque: 1to20mnm for c max <20pf; 1 to 30 mnm for c max 20 pf
bfc2 808 ..... ? 5 mm film dielectric trimmers vishay bccomponents document number 28526 for technical questions contact: dc-film@vishay.com www.vishay.com revision 11-oct-07 315 27 ca damp heat steady state 21 days; + 40 c; 90 to 95 % rh c/c: 3 % tan for pp and ptfe foil: 15 x 10 -4 ; tan for pc foil: 80 x 10 -4 r ins : 10 000 m ; rotor contact r: 10 m voltage proof: 300 v for 1 minute visual examination: no mechanical damage operating torque: 1to20mnm for c max <20pf; 1 to 30 mnm for c max 20 pf 29 mechanical endurance 10 cycles maximum 10 cycles: rotation in 180 only. (the electric al and mechanical perfromance is not guaranteed if rotated beyond 10 cycles) c/c: 3 % c/c after axial thrust: 0.3 %; rotor contact r: 10 m voltage proof: 300 v for 1 minute visual examination: no mechanical damage operating torque: 0.5 to 22.5 mnm for c max <20pf; 0.5 to 30 mnm for c max 20 pf iec 60418-1 clause iec 60068 test method test procedure requirements
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