ST-4 SURFACE MOUNT CERMET TRIMMERS (SINGLE TURN) S T - 4 E T A Ω ( ) S T E T A Ω ( ) FEATURES PART NUMBER DESIGNATION

Transcript

1 SURFACE MOUNT CERMET TRIMMERS (SINGLE TURN ST-4 RoHS compliant INTERNAL STRUCTURE 7 6 FEATURES RoHS compliant Wide variety (7 types to choose from Automatic mounting is possible (Taping Flow/reflow soldering is possible Sealed construction (Washable: Refer to A-8 Stopper structure prevents terminal pin from being open. Cross slot rotor suitable for automatic adjustment Part name Wiper Cover Housing Terminal pin Base element O ring Rotor Electrode Resistive element 8 9 Material Multi metal alloy Stainless steel (SUS 4 Epoxy Copper alloy, Sn-Cu-plated Ceramic Silicone rubber PPS Polyphenylenesulphide Ag-Pd cermet RuO cermet Flammability UL-94V- UL-94HB UL-94V- PART NUMBER DESIGNATION Series name (minus slot Terminal pin E Sn-Cu (Lead-free Form of packaging T Blank Series name (cross slot Terminal pin Form of packaging T Blank S T - 4 E T A Ω ( Taping (Reel Bulk in plastic bag E Sn-Cu (Lead-free Taping (Reel Bulk in plastic bag Please refer to the LIST OF PART NUMBERS when placing orders. A-49 Resistance code Resistance value Product shape (Shape of terminal A, GJ- J-hook B, D, H Gull wing C, F Through hole pins S T - 4 E T A Ω ( Resistance code Resistance value Product shape (Shape of terminal A, GJ- J-hook B, D, H Gull wing C, F Through hole pins

2 LIST OF PART NUMBERS Adjustment position Top adjustment Rear adjustment Side adjustment Pieces in package Shape of terminal J- A ( J-hook B ( Gull wing C ( Through hole pins D ( Gull wing F ( Through hole pins J- G ( J-hook H ( Gull wing Nominal resistance range Resistance tolerance Power ratings Resistance law Maximum input voltage Maximum wiper current Effective electrical angle End resistance C.R.V. Operating temp. range Temp. coefficient Insulation resistance Dielectric strength Net weight Form of packaging Taping (reel Plastic bag ST-4/4ETA ST-4/4EA ST-4/4ETB A ST-4/4ETD ST-4/4ETG ST-4/4ETH ST-4/4EB ST-4/4EC A ST-4/4ED A ST-4/4EF ST-4/4EG ST-4/4EH pcs./reel pcs./pack A The products indicated by A mark are manufactured upon receipt of order basis. C slot : ST-4E, B slot : ST-4E ELECTRICAL CHARACTERISTICS Ω ~ MΩ ± %. W (7 C W ( C Linear law (B DC V or power rating, whichever is smaller ma or power rating, whichever is smaller ( turn Ω % or Ω, whichever is greater Ω % or Ω, whichever is greater ~ C Ω ~ Ω : ± -6 / C maximum Ω ~ MΩ : ± -6 / C maximum MΩ minimum (DC V AC V, 6 s Approx.. g (ST-4EA, EB, EC, ED, EF Approx.. g (ST-4EG, EH Reflow profile for soldering heat evaluation Temperature ( C 8 C C + Peak : C Over C Pre Heating Zone 9 ± s Heating time ± s Soldering Zone Reflow : two times maximum A- Nominal resistance values A Ω A Ω Ω Ω Ω Ω kω kω kω kω kω kω kω kω kω MΩ MΩ Not manufactured Fig. B 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. Cross slot available : ST-4E MECHANICAL CHARACTERISTICS Mechanical angle Operating torque Stop strength Rotational life Thrust to rotor Solderability Shear (Adhesion Substrate bending Pull-off strength 4 ( turn mn m { gf cm} maximum mn m {6 gf cm} minimum cycles [R/R ± ( Ω+ %] N {. kgf} minimum 4 ± C, ~ s N {. kgf} s Width 9 mm, bend mm, s, time N {. kgf} s ENVIRONMENTAL CHARACTERISTICS Test item Test conditions Thermal shock 6 ~ C (. h, cycles ~ 6 C (8 ~ 98 %, Humidity cycles, 4 h 98 m/s, 6 ms Shock 6 directions for times each (Amplitude. mm or (Acceleration 96 m/s Vibration, ~ Hz, directions, times each Load life 7 C,. W h Low temp. operation C, h High temp. exposure C, h Immersion seal Soldering heat Fig. { }Reference only Specifications [R/R %] [S.S. %] [R/R %] [R/R %] [S.S. %] [R/R %] [S.S. %] [R/R %] [S.S. %] [R/R %] [S.S. %] 8 C, 6 s No leaks (No continuous bubbles ± C C Flow : 6 ± C as the temperature in a pot of molten solder, immersion from head of terminal to backside of board, ~ 6 s, two times maximum Reflow : Peak temperature C (Please refer to the profile below. Manual soldering ± C, ~ 4 s [R/R %] R/RChange in total resistance S.S. Setting stability

3 MAXIMUM INPUT RATINGS Nominal resistance values (Ω Resistance code Maximum input voltage (V Maximum wiper current (ma A. A k.8.8 k.4. k k.. k k.4 k k 4. k 4.4 M. M. A The products indicated by A mark are manufactured upon receipt of order basis. RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS ST-4EA ST-4EB ST-4ED (Unit: mm ST-4EG ST-4EH Note The zero point is the center of mounting. A-

4 OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ±. (Unit: mm ST-4EA Top adjustment.6 W. L. D.... Note the terminal position...8 CW rotation ST-4EB Top adjustment.6 W. L. D.. min.. min ST-4EC Top adjustment.6 W. L. D.6. ST-4EG Side adjustment 4±.4.6 W. L. D (..9. A-

5 OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ±. (Unit: mm ST-4EH Side adjustment ST-4ED Rear adjustment.6 W. L. D.8 6. Semi-standard products.8 Note the terminal position... CW rotation.6 W. L. D ST-4EF Rear adjustment..8 Semi-standard products..6 W. L. D.6 6..±...4 ST-4E BCROSS SLOT DIMENSION.6 W. L. D Cross slot screwdriver bit :.8 D A-

6 EMBOSSED TAPE DIMENSIONS End Empty Filled Empty 4 mm min. pitches min. Leader Direction of feed 4 mm min. Head PACKAGING SPECIFICATIONS <Taping packaging specifications> Taping version is packaged in pcs. per reel. Orders will be accepted for units of pcs., i.e.,,, pcs., etc. ST-4ETA, ETB and ETD versions are boxed with 4 reels ( pcs.. ST-4ETG and ETH versions are boxed with one reel ( pcs.. Maximum number of consecutive missing pieces = Leader length and reel dimension are shown in the diagrams below. REEL DIMENSIONS JIS C 86-Conforms to JIS C 86- EIAJ ET-7AIn accordance with EIAJ ET-7A (Unit: mm ±.8 ±. ±. + (ETA/ETB.4±(ETG/ETH + 6 (TA/TB min.(tg/th 8. (ST-4ETA/ETB/ETD 4 ± (ST-4ETG/ETH.4± (ETA/ETB/ETD 7.4± (ETG/ETH ST-4ETA/ETB/ETD ST-4ETG/ETH φ. +. 8±. ±. 4±. φ..7±..±..±. Installation example (ST-4EA φ. +. 8±. ±. 4±..7±..±..±. (ST-4EG Installation example (ST-4EG Direction of feed.7 (ST-4ETA/ETB.4 (ST-4ETD Direction of feed 6.4 <Bulk pack specifications> Unit of bulk in a plastic bag is pcs. per pack. Boxing of bulk in a plastic bag is performed with pcs. per box. A-4