SINGLE TURN COPAL ELECTRONICS S T T A Ω ( 1 2 ) FEATURES PART NUMBER DESIGNATION

Transcription

1 SINGLE TURN INTERNAL STRUCTURE FEATURES Lead-free soldering, Cadmium-free Top and side adjustment styles Rotor with a cross slot for ease of adjustment Leaded terminals provide strong as adhesive strength against P.C.B. bending J-hook, Gull wing and leaded terminal configurations Sealed / Washable Part name Wiper Cover Housing Terminal Sn-Pb Sn-Cu Base element O ring Rotor Electrode Resistive element Material Multi metal alloy Stainless steel (SUS 4 Epoxy Copper alloy, Solder-plated Copper alloy, Sn-Cu-plated Ceramic Silicone rubber PPS Polyphenylenesulphide Ag-Pd cermet RuO cermet Flammability UL-94V- UL-94HB UL-94V- CFCs (PBBOs, PBBs CFCs, Halon, Carbon tetrachloride and designated bromic flame retardant PBBOs and PBBs are not used in our products. PART NUMBER DESIGNATION S T - T A Ω ( Series name Terminal pin Blank Sn-Pb E Sn-Cu (Lead-free Form of packaging T Blank Taping (Reel Bulk in vinyl bags Resistance code Resistance value Product shape (Shape of terminal J-hook Gull wing Please refer to the LIST OF PART NUMBERS when placing orders.

2 ST- LIST OF PART NUMBERS Adjustment position Top adjustment Side adjustment Shape of terminal A ( J-hook B ( Gull wing G ( J-hook H ( Gull wing Pieces in package Form of packaging Taping (reel Sn-Pb Vinyl bag Sn-Cu (Lead-free Sn-Pb Sn-Cu (Lead-free ST-TA ST-ETA ST-A ST-EA ST-TB ST-ETB ST-B ST-EB ST-TG ST-ETG ST-G ST-EG ST-TH ST-ETH ST-H ST-EH 5 pcs./reel pcs./pack ELECTRICAL CHARACTERISTICS Nominal resistance range Nominal 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 Ω ~ MΩ ± %.5 W (7 C W (5 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 55 ~ 5 C Ω ~ 5 Ω : ± 5-6 / C maximum Ω ~ MΩ : ± -6 / C maximum MΩ minimum (DC5 V AC5 V, 6 s Approx..5 g (ST-A, B, EA, EB Approx.. g (ST-G, H, EG, EH Reflow profile for soldering heat evaluation Temperature ( C C 5 C +5 Peak : 5 C Over C Pre Heating Zone 9 ± s Heating time ± s Soldering Zone Nominal resistance values A Ω A Ω 5 Ω Ω Ω Ω 5 Ω kω kω kω 5 kω kω kω kω 5 kω kω kω 5 kω MΩ MΩ A The products indicated by A mark are manufactured upon receipt of order basis. The part numbers on the left 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. MECHANICAL CHARACTERISTICS Mechanical angle Operating torque Stop strength Rotational life Thrust to rotor Solderability Shear (Adhesion Substrate bending Pull-off strength 5 ( turn 5 mn m {5 gf cm} maximum mn m {4 gf cm} minimum cycles [ R/R ± ( Ω + %] 5 N {.5 kgf} minimum Sn-Pb 5 C, s Sn-Cu (Lead-free 45 ± C, ~ s 5 N {.5 kgf} s Width 9 mm, bend mm, 5 s, time 5 N {.5 kgf} s { }Reference only ENVIRONMENTAL CHARACTERISTICS Test item Thermal shock Humidity Shock Vibration Test conditions 65 ~ 5 C (.5 h, 5 cycles ~ 65 C ( 8 ~ 98 %, cycles, 4 h 98 m/s, 6 ms 6 directions for times each (Amplitude.5 mm or (Acceleration 96 m/s, ~ Hz, directions, times each Load life 7 C,.5 W, h 55 C, h Low temp. operation High temp. exposure 5 C, 5 h 85 C, 6 s Immersion seal Sn-Pb 6 C, s or 5 C, 5 s Sn-Cu ± C C Soldering heat Flow : 6 ± C as the temperature in a pot of molten solder, immersion from head of terminal to backside of board, 5 ~ 6 s, twice. Reflow : Peak temperature 55 C (Please refer to the profile below. Manual soldering 5 ± C, ~ 4 s Specifications [ R/R %] [S.S. %] [ R/R %] [ R/R %] [S.S. %] [ R/R %] [S.S. %] [ R/R %] [S.S. %] [ R/R %] [S.S. %] No leaks (No continuous bubbles [ R/R %] Reflow : twice R/RChange in total resistance S.S. Setting stability Fig.

3 ST- MAXIMUM INPUT RATINGS Nominal resistance values (Ω Resistance code Maximum input voltage (V Maximum wiper current (ma A. A k.. k k k k k k k k 5. k k 55.4 M 6. M 6. A The products indicated by A mark are manufactured upon receipt of order basis. RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS ST-A, G, EA, EG.6 ST-B, H, EB, EH.6 (Unit : mm For reflow soldering..8.. Note The zero point is the center of mounting.

4 ST- OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ±. (Unit : mm ST-A, ST-EA Top adjustment CW rotation Note the terminal position..5.5 Cross slot for a bit driver, depth :.45 digit (Location reversed every years t =.. Resistance code digits ST-B, ST-EB Top adjustment.5.5 Cross slot for a bit driver, depth :.45 digit (Location reversed every years t =.. Resistance code digits

5 ST- OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ±. (Unit : mm ST-G, ST-EG Side adjustment Cross slot for a bit driver, depth : Note the terminal position. digit (Location reversed every years Adjustment CW rotation Resistance code digits t =. ST-H, ST-EH Side adjustment Cross slot for a bit driver, depth : digit (Location reversed every years.5. Adjustment Resistance code digits t =.

6 ST- PACKAGING SPECIFICATIONS <Taping packaging specifications> Taping version is packaged in 5 pcs. per reel. Orders will be accepted for units of 5 pcs., i.e., 5,, 5 pcs., etc. ST-TA, ETA, TB and ETB versions are boxed with 4 reels ( pcs.. ST-TG, ETG, TH and ETH versions are boxed with one reel (5 pcs.. Maximum number of consecutive missing pieces= Leader length and reel dimension are shown in the diagrams below. EMBOSSED TAPE DIMENSIONS Empty Filled Empty REEL DIMENSIONS JIS C 86- Conforms to JIS C 86- EIAJ ET-7A In accordance with EIAJ ET-7A (Unit: mm End 4 mm min. pitches min. Direction of feed 4 mm min. Head ±.8 ±.5 ±. + (TA/TB/ETA/ETB.4± (TG/TH/ETG/ETH + 6 (TA/TB 8±(TG/TH 8.5(ST-TA/TB/ETA/ETB 54± (ST-TG/TH/ETG/ETH 5.4± (TA/TB/ETA/ETB 7.4± (TG/TH/ETG/ETH ST-TA, TB, ETA, ETB ST-TG, TH, ETG, ETH ±. 4±. ±.5 5.5±.5.75±..± ±. 8±. 4±. 5.5±.5.75±..4±. Installation example (ST-H, EH Direction of feed Installation example (ST-A, EA.5 Direction of feed 5.5 max. <Vinyl bag packaging specifications> Unit of bulk in vinyl bag packaging is pcs. per pack. Boxing of bulk in vinyl bags is performed with 5 pcs. per box.