3 mm 1 SURFACE MOUNT CERMET TRIMMERS (SINGLE TURN) RoHS compliant INTERNAL STRUCTURE 2 1 RoHS ST-32 7 6 5 4 9 8 Part name RoHS compliant 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: Refer to page 754.) 2 3 4 5 6 O 7 8 9 Wiper Cover Multi metal alloy Housing Terminal pin Epoxy -- Ceramic "O" ring Electrode UL94V-0 Copper alloy, Sn-Cu-plated Base element Rotor -- Stainless steel (SUS 304) Silicone rubber UL94HB PPS UL94V-0 Polyphenylenesulphide Ag-Pd Ag-Pd cermet RuO2 Resistive element RuO2 cermet PART NUMBER DESIGNATION S T - 3 2 E T A 1 0 0 ( 1 2 ) Series name Terminal pin E Resistance code Resistance value Sn-Cu (Lead-free) Form of packaging T Blank Product shape (Shape of terminal) Taping (Reel) Bulk in plastic bag A, GJ- B, H Please refer to the LIST OF PART NUMBERS when placing orders. 659 J-hook Gull wing -- L E D RoHS 754 1 Flammability FEATURES Material 3 ST-32 SURFACE MOUNT TRIMMERS Adjustment position Top adjustment Side adjustment Shape of terminal ) B ( Gull wing ) J- G ( J-hook ) H (Gull wing ) A ( J-hook J- Pieces in package LIST OF PART NUMBERS Form of packaging Taping (reel) Plastic bag ST-32ETA ST-32EA ST-32ETB ST-32EB ST-32ETG ST-32EG ST-32ETH ST-32EH 500 pcs./reel A 10 A 20 50 100 200 300 500 1 k 2 k 3 k 5 k 10 k 20 k 30 k 50 k 100 k 200 k 500 k 1 M 2 M Fig.1 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. 1). Verify the above part numbers when placing orders. Taping specification is not sold separately and must be purchased in reel units. 100 pcs./pack Fig. 1 L E D Nominal resistance values MECHANICAL CHARACTERISTICS 250 (1 turn) Mechanical angle (B) Maximum input voltage Maximum wiper current Thrust to rotor 1 % 3 C.R.V. ENVIRONMENTAL CHARACTERISTICS 1 % or 3 , whichever is greater - 55 ~ 125 C 10 ~ 50 : 250 10-6/C maximum 100 ~ 2 M : 100 10-6/C maximum Operating temp. range Temp. coefficient 1000 M minimum (DC500 V) AC500 V, 60 s Insulation resistance Dielectric strength Net weight Test item Vibration Peak : 250 +5 0 -55 C, 2 h 125 C, 250 h Low temp. operation Immersion seal 180 C 150 C [R/R 2 %] [R/R 1 %] [S.S. 1 %] 85 C, 60 s [R/R 3 %] [S.S. 1 %] [R/R 2 %] [S.S. 2 %] [R/R 3 %] [S.S. 2 %] No leaks (No continuous bubbles) 5 6 2 Soldering heat 90 30 s 30 10 s 260 3 C Pre Heating Zone Heating time Specifications [R/R 2 %] [S.S. 1 %] 10 ~ 2000 Hz, 3 directions, 12 times each 70 C, 0.125 W, 1000 h Load life C (Amplitude) 1.52 mm or (Acceleration) 196 m/s2, High temp. exposure 100 50 -10 ~ 65 C ( 80 ~ 98 %), 10 cycles, 240 h 981 m/s2, 6 ms 6 directions for 3 times each Shock Over 230 C 150 Reflow profile for soldering heat evaluation 200 -65 ~ 125 C (0.5 h), 5 cycles Humidity Approx. 0.05 g (ST-32EA, EB) Approx. 0.11 g (ST-32EG, EH) Test conditions Thermal shock (C) 250 { } Reference only 1 % or 2 , whichever is greater 5 s, 1 5 N {0.51 kgf} 10 s Pull-off strength 210 (1 turn) 3 mm Width 90 mm, bend 3 mm, 5 s, 1 time 100 mA or power rating, whichever is smaller 90 mm Substrate bending DC200 V or power rating, whichever is smaller 1 % 2 End resistance 5 N {0.51 kgf} 10 s Shear (Adhesion) Linear law (B) 245 3 C, 2 ~ 3 s 100 mA Effective electrical angle 5 N {0.51 kgf} minimum Solderability DC200 V 100 cycles [R/R (2 +3 %)] Rotational life 0.125 W (70 C) 0 W (125 C) Resistance law 20 % Resistance tolerance 20 mN*m {204 gf*cm} minimum Stop strength 10 ~ 2 M Nominal resistance range Temperature Power ratings 5 mN*m {51 gf*cm} maximum Operating torque ELECTRICAL CHARACTERISTICS Soldering Zone 255 C Flow : 260 3 C as the temperature in a pot of molten solder, immersion from head of terminal to backside of board, 5 ~ 6 s, two times maximum. Reflow : Peak temperature 255 C (Please refer to the profile below.) Manual soldering350 10 C, 3 ~ 4 s [R/R 1 %] R/R Change in total resistance Setting stability S.S. Reflow : two times maximum 660 ST-32 Nominal resistance Maximum input Resistance code values () voltage (V) Maximum wiper current (mA) 1k 2k 3k 5k 10 k 20 k 30 k 50 k 13 23 33 53 14 24 34 54 11.2 15.8 19.4 25.0 35.4 50.0 61.2 79.1 11.2 7.91 6.45 5.00 3.54 2.50 2.04 1.58 100 k 200 k 500 k 1M 2M 15 25 55 16 26 112 158 200 200 200 1.12 0.79 0.40 0.20 0.10 L E D A The products indicated by A mark are manufactured upon receipt of order basis. 100 79.1 50.0 35.4 25.0 20.4 15.8 1.00 1.58 2.50 3.53 5.00 6.12 7.91 11 21 51 12 22 32 52 10 20 50 100 200 300 500 RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS ST-32EA, EG ST-32EB, EH (Unit : mm) 1.6 0.9 2.2 1.5 1.6 0.9 1 4.6 0 6 0 1.2 0.8 1.9 1.2 1 A A MAXIMUM INPUT RATINGS SURFACE MOUNT TRIMMERS 1.2 3.2 1.2 For reflow soldering 0.8 1.2 3.2 0 Note) The zero point is the center of mounting. 661 ST-32 SURFACE MOUNT TRIMMERS OUTLINE DIMENSIONS Unless otherwise specified, tolerance : 0.3 (Unit : mm) 1 3 CW rotation ST-32EA 2 Top adjustment 2 Note the terminal position. (+) 00.45 Cross slot for a 0 bit driver, depth : 0.45 12 Production date code & Lead-free Identification mark 1 digit (Location reversed every 2 years) 0.6 1.5 0.5 1 2 3.5 1.9 0.05 3.4 3 1 2 Resistance code 2 digits 2 2 - 0.7 t = 0.12 2.1 ST-32EB Top adjustment 0.05 3 3.4 1 1 2 2 Resistance code 2 digits 662 t = 0.12 2 4.4 1.5 0.5 3.4 2 (+) 00.45 Cross slot for a 0 bit driver, depth : 0.45 12 Production date code & Lead-free Identification mark 1 digit (Location reversed every 2 years) 1.9 3.4 L E D 2.1 2 - 0.7 ST-32 OUTLINE DIMENSIONS Unless otherwise specified, tolerance : 0.3 (Unit : mm) 3 CW rotation ST-32EG 2 Side adjustment Note the terminal position. (+) 00.45 Cross slot for a 0 bit driver, depth : 0.45 12 Production date code & Lead-free Identification mark 3.6 1 digit (Location reversed every 2 years) 1.5 3.5 0.5 0.2 Adjustment 1 2.4 2 - 0.6 1.7 1.9 4.7 1.1 2.6 ST-32EH Side adjustment (+) 00.45 Cross slot for a 0 bit driver, depth : 0.45 12 3.6 Production date code & Lead-free Identification mark 1.5 1 digit (Location reversed every 2 years) 3.5 0.5 0.2 3 Adjustment 2.4 1 1.7 1.3 2.6 1.9 4.7 1.4 2 - 0.6 t = 0.12 2 Resistance code 2 digits 1 2 663 L E D 2 1 t = 0.12 1 3 1 2 Resistance code 2 digits SURFACE MOUNT TRIMMERS ST-32 <Taping packaging specifications> 500 500 1000 1500 ... ST-32ETAETB 4 2000 ST-32ETGETH 1 500 2 Maximum number of consecutive missing pieces = 2 Leader length and reel dimension are shown in the diagrams below. EMBOSSED TAPE DIMENSIONS REEL DIMENSIONS JIS C 0806-3 Conforms to JIS C 0806-3 EIAJ ET-7200A Empty In accordance with EIAJ ET-7200A (Unit: mm) Filled Empty 13 +10 (ETA/ETB) 13.41 (ETG/ETH) End 210.8 Head 40 mm min. 20.5 20 pitches min. Leader 400 mm min. Direction of feed 130.2 15.41 (ETA/ETB) 17.41 (ETG/ETH) 0 (ST-32ETA/ETB) 180 -1.5 2542 (ST-32ETG/ETH) ST-32ETA, ETB ST-32ETG, ETH 80.1 40.1 20.05 80.1 20.1 40.1 1 .1 +0 0 .5 1 2 0.30.1 1.750.1 5.50.1 .1 +0 0 .5 2 12 5.50.05 L E D 60 +10 (ETA/ETB) 50 min.(ETG/ETH) Taping version is packaged in 500 pcs. per reel. Orders will be accepted for units of 500 pcs., i.e., 500, 1000, 1500 pcs., etc. ST-32ETA, ETB versions are boxed with 4 reels (2000 pcs.). ST-32ETG, ETH versions are boxed with one reel (500 pcs.). 500 /1 1.750.1 PACKAGING SPECIFICATIONS 0.40.1 ST-32EH Installation example (ST-32EH) 12 SURFACE MOUNT TRIMMERS ST-32EA Installation example (ST-32EA) 3 2.5 3 1 Direction of feed 1 Direction of feed 5.5 max. <Bulk pack specifications> Unit of bulk in a plastic bag is 100 pcs. per pack. Boxing of bulk in a plastic bag is performed with 500 pcs. per box. 100 / 500 664