SURFCE MOUNT CERMET TRIMMERS RoHS compliant INTERNL STRUCTURE 9 8 7 FETURES 7 8 9 Part name Material Flammability Housing Polyphenylenesulphide UL9V- Base element Ceramic Electrode g-pd cermet Resistive element RuO cermet dhesive Epoxy Wiper Multi metal alloy Terminal pin Copper alloy, Sn-Cu-plated Rotor gear Polyamide UL9V- Shaft Brass, Nickel-plated PRT NUMBER DESIGNTION S M - T W Ω ( ) Series name Electrical turn turns turns Form of packaging TTaping (Reel) BlankBulk in plastic bag Resistance code Resistance value Product shape (Shape of terminal) W, XTop adjustmet, BSide adjustmet Please refer to the LIST OF PRT NUMBERS when placing orders.
LIST OF PRT NUMBERS Electrical turn djustment position W (J-hook) Top adjustment X (Gull wing) Side adjustment Shape of terminal (J-hook) B (Gull wing) Form of packaging Taping (reel) SM-TW SM-TX SM-T SM-TB Plastic bag SM-W SM-X SM- SM-B Nominal resistance values Ω Ω Ω Ω Ω Ω kω kω kω kω kω kω kω kω kω MΩ MΩ Fig. The products indicated by mark are manufactured upon receipt of order basis. The above part numbers are all available with the respective combination of <Nominal resistance values> (Fig. ). Verify the above part numbers when placing orders. Taping specification is not sold separately and must be purchased in reel units. Top adjustment Side adjustment W (J-hook) X (Gull wing) (J-hook) B (Gull wing) SM-TW SM-TX SM-T SM-TB SM-W SM-X SM- SM-B MECHNICL CHRCTERISTICS Pieces in package T, TB : pcs./reel TW, TX : pcs./reel pcs./pack Operating torque 7. mn m {8 gf cm} maximum Mechanical stop Clutch action ELECTRICL CHRCTERISTICS Rotational life Thrust to shaft cycles [R/R ± ( Ω + %)] N {. kgf} minimum Nominal resistance range Ω ~ MΩ Solderability ± C, ~ s Resistance tolerance ± % Shear (dhesion) N {. kgf} s Power ratings. W (8 C) W ( C) Substrate bending Width 9 mm, bend mm, s, time Resistance law Linear law Pull-off strength N {. kgf} s Maximum input voltage DC V or power rating, whichever is smaller { }Reference only Maximum wiper current Effective electrical turn m or power rating, whichever is smaller turns (SM-), turns (SM-) ENVIRONMENTL CHRCTERISTICS End resistance C.R.V. Operating temp. range Temp. coefficient Insulation resistance Dielectric strength Net weight Reflow profile for soldering heat evaluation Temperature (C) 8 C C % or Ω, whichever is greater % or Ω, whichever is greater Peak : C Over C Pre Heating Zone 9 s + ~ C ± - / C maximum MΩ minimum (DC V) C V, s pprox..7 g s Soldering Zone Heating time Test item Test conditions Specifications Thermal shock Humidity Shock Vibration Load life Low temp. operation High temp. exposure Immersion seal ~ C (. h), cycles ~ C (8 ~ 98 %), cycles, h 98 m/s, ms directions for times each (mplitude). mm or (cceleration) 9 m/s, ~ Hz, directions, times each [R/R %] [S.S. %] [R/R %] [R/R %] [S.S. %] 8 C,. W, h [R/R % or Ω] [S.S. %] C, h [R/R %] [S.S. %] C, h [R/R %] [S.S. %] 8 C, s No leaks (No continuous bubbles) Reflow : Peak temperature C Soldering heat (Please refer to the profile below.) Manual soldering ± [R/R %] C, ~ s R/RChange in total resistance S.S. Setting stability Reflow : two times maximum
MXIMUM INPUT RTINGS Nominal resistance values (Ω) Resistance code Maximum input voltage (V) Maximum wiper current (m)... 7.7.. 7.7... k.8.8 k.. k. 7.7 k.. k 7.7. k. k 8.8 k. k. M. M. The products indicated by mark are manufactured upon receipt of order basis. RECOMMENDED P.C.B. PD OUTLINE DIMENSIONS (Unit: mm) B W X....9..9..........9. Note) The zero point is the center of mounting.
OUTLINE DIMENSIONS W.9.. Unless otherwise specified, tolerance : ±. (Unit : mm) CW rotation Note the terminal position..8...8. φ., Slot.W.D...9 X.7....8.8. φ., Slot.W.D.. Resistance code & Produ ction d ate code.7.8....8.9. φ., Slot.W.D. B.9.....8.9.8 φ., Slot.W.D.
PCKGING SPECIFICTIONS <Taping packaging specifications> EMBOSSED TPE DIMENSIONS End Empty Filled Empty Head REEL DIMENSIONS Conforms to JIS C 8- T/TB type : In accordance with EIJ ET-7 + (T/TB) 7±. (TW, TX) (Unit: mm) mm min. pitches min. Direction of feed mm min. ±.8 ±. + ±. 8. (T/TB).± (T/TB) 8 (TW, TX) 9.± (TW/TX) TW/TX T/TB +. φ....7. 7.. +.... Installation example (SM-W) φ. +......7... Installation example (SM-)..7 Cross section - 8.. Cross section - <Bulk pack specifications>