SURFACE MOUNT CERMET TRIMMERS (SINGLE TURN) RoHS compliant ST-32 INTERNAL STRUCTURE 2 1 7 6 5 3 4 9 8 Part name Material FEATURES 1 Wiper Multi metal alloy ORoHS compliant ORotor with a cross slot for ease of adjustment O Leaded terminals provide strong as adhesive strength against P.C.B. bending OJ-hook, Gull wing and leaded terminal configurations OSealed (Washable: Refer to page 750.) 2 Cover Stainless steel (SUS 304) 3 Housing 4 Terminal pin Copper alloy, Sn-Cu-plated 5 Base element Ceramic 6 "O" ring 7 Rotor 8 Electrode Ag-Pd cermet 9 Resistive element RuO2 cermet Flammability -- Epoxy UL94V-0 -- Silicone rubber UL94HB Polyphenylenesulphide UL94V-0 -- PART NUMBER DESIGNATION S T - 3 2 E T A 1 0 0 ( 1 2 ) Series name Resistance code Terminal pin Resistance value ESn-Cu (Lead-free) Form of packaging Product shape (Shape of terminal) TTaping (Reel) BlankBulk in plastic bag A, GJ-hook B, HGull wing Please refer to the LIST OF PART NUMBERS when placing orders. ST-32 SURFACE MOUNT TRIMMERS LIST OF PART NUMBERS Adjustment position Shape of terminal Nominal resistance values Form of packaging Taping (reel) Plastic bag Top adjustment A (J-hook) ST-32ETA ST-32EA B (Gull wing) ST-32ETB ST-32EB Side adjustment G (J-hook) ST-32ETG ST-32EG H (Gull wing) ST-32ETH ST-32EH 500 pcs./reel 100 pcs./pack Pieces in package ELECTRICAL CHARACTERISTICS Nominal resistance range 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 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. MECHANICAL CHARACTERISTICS 10 ~ 2 M Mechanical angle 250 (1 turn) 20 % Operating torque 5 mN*m {51 gf*cm} maximum Resistance tolerance Power ratings 0.125 W (70 C) 0 W (125 C) Stop strength 20 mN*m {204 gf*cm} minimum Resistance law Linear law (B) Rotational life 100 cycles [R/R (2 + 3 %)] Maximum input voltage DC200 V or power rating, whichever is smaller Thrust to rotor 5 N {0.51 kgf} minimum Maximum wiper current 100 mA or power rating, whichever is smaller Solderability 245 3 C, 2 ~ 3 s Effective electrical angle 210 (1 turn) Shear (Adhesion) 5 N {0.51 kgf} 10 s End resistance 1 % or 2 , whichever is greater Substrate bending Width 90 mm, bend 3 mm, 5 s, 1 time C.R.V. 1 % or 3 , whichever is greater Pull-off strength Operating temp. range Temp. coefficient Insulation resistance 10 ~ 50 : 250 10-6/C maximum 100 ~ 2 M : 100 10-6/C maximum 1000 M minimum (DC500 V) Dielectric strength AC500 V, 60 s Approx. 0.05 g (ST-32EA, EB) Approx. 0.11 g (ST-32EG, EH) Net weight { }Reference only ENVIRONMENTAL CHARACTERISTICS Test item Thermal shock Humidity Shock Reflow profile for soldering heat evaluation (C) 250 Peak : 250 +5 0 C Temperature 150 180 C Pre Heating Zone 50 Specifications -65 ~ 125 C (0.5 h), 5 cycles [R/R 2 %] [S.S. 1 %] -10 ~ 65 C , 10 cycles, 240 h 981 m/s2, 6 ms 6 directions for 3 times each Vibration Load life 70 C, 0.125 W, 1000 h [R/R 2 %] [R/R 1 %] [S.S. 1 %] [R/R 3 %] [S.S. 1 %] [R/R 2 %] [S.S. 2 %] [R/R 3 %] [S.S. 2 %] Low temp. operation -55 C, 2 h High temp. exposure 125 C, 250 h Immersion seal 85 C, 60 s No leaks (No continuous bubbles) Soldering heat 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 %] 150 C 90 30 s 100 Test conditions (Amplitude) 1.52 mm or (Acceleration) 196 m/s2, 10 ~ 2000 Hz, 3 directions, 12 times each Over 230 C 200 5 N {0.51 kgf} 10 s -55 ~ 125 C 30 10 s Heating time Soldering Zone Reflow : two times maximum R/RChange in total resistance S.S. Setting stability ST-32 SURFACE MOUNT TRIMMERS MAXIMUM INPUT RATINGS Nominal resistance Maximum input Resistance code values () voltage (V) A A Maximum wiper current (mA) 10 20 50 100 200 300 500 11 21 51 12 22 32 52 1.00 1.58 2.50 3.53 5.00 6.12 7.91 100 79.1 50.0 35.4 25.0 20.4 15.8 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 The products indicated by A mark are manufactured upon receipt of order basis. RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS OST-32EA, EG OST-32EB, EH (Unit : mm) 1.6 0.9 2.2 1.5 1.6 1 0.9 4.6 0 1.2 0.8 1.9 1.2 1 6 0 1.2 3.2 For reflow soldering 1.2 0.8 1.2 3.2 Note) The zero point is the center of mounting. ST-32 SURFACE MOUNT TRIMMERS OUTLINE DIMENSIONS Unless otherwise specified, tolerance : 0.3 (Unit : mm) 1 3 OST-32EA Top adjustment CW rotation 2 Note the terminal position. Cross slot for a 0 bit driver, depth : 0.45 2 Production date code & Lead-free Identification mark 1 digit (Location reversed every 2 years) 1.5 0.5 1 2 3.5 1.9 3.4 0.6 0.05 3.4 3 2 1 2 - 0.7 t = 0.12 2.1 Resistance code 2 digits OST-32EB Top adjustment Cross slot for a 0 bit driver, depth : 0.45 2 1.9 1 4.4 Production date code & Lead-free Identification mark 1 digit (Location reversed every 2 years) 1.5 0.5 3.4 2 0.05 3 3.4 1 Resistance code 2 digits 2 t = 0.12 2.1 2 - 0.7 ST-32 SURFACE MOUNT TRIMMERS OUTLINE DIMENSIONS Unless otherwise specified, tolerance : 0.3 (Unit : mm) 1 3 OST-32EG Side adjustment CW rotation 2 Note the terminal position. Cross slot for a 0 bit driver, depth : 0.45 Production date code & Lead-free Identification mark 1 digit (Location reversed every 2 years) Adjustment 3.6 1.5 0.5 3 3.5 1.7 1.1 2.6 1.9 4.7 1 0.2 1 2.4 2 - 0.6 1 t = 0.12 2 Resistance code 2 digits OST-32EH Side adjustment Cross slot for a 0 bit driver, depth : 0.45 3.6 1.5 Production date code & Lead-free Identification mark 1 digit (Location reversed every 2 years) Adjustment 3 3.5 0.5 2.4 1 2 - 0.6 1.7 1.3 2.6 1.9 4.7 1.4 0.2 t = 0.12 1 2 Resistance code 2 digits ST-32 SURFACE MOUNT TRIMMERS PACKAGING SPECIFICATIONS <Taping packaging specifications> OTaping version is packaged in 500 pcs. per reel. Orders will be accepted for units of 500 pcs., i.e., 500, 1000, 1500 pcs., etc. O ST-32ETA, ETB versions are boxed with 4 reels (2000 pcs.). ST-32ETG, ETH versions are boxed with one reel (500 pcs.). Maximum number of consecutive missing pieces = 2 Leader length and reel dimension are shown in the diagrams below. OEMBOSSED TAPE DIMENSIONS OREEL DIMENSIONS Conforms to JIS C 0806-3 In accordance with EIAJ ET-7200A (Unit: mm) Empty Filled Empty 13 +10 (ETA/ETB) 13.41 (ETG/ETH) Head 210.8 40 mm min. 60 +10 (ETA/ETB) 50 min.(ETG/ETH) End 20.5 20 pitches min. Direction of feed 400 mm min. 130.2 15.41 (ETA/ETB) 17.41 (ETG/ETH) 0 (ST-32ETA/ETB) 180 -1.5 2542 (ST-32ETG/ETH) OST-32ETA, ETB OST-32ETG, ETH 80.1 80.1 40.1 .5 0.40.1 ST-32EH Installation example (ST-32EH) 5.50.1 12 5.50.05 .1 +0 0 2 12 20.1 1 .1 +0 0 .5 1 2 0.30.1 1.750.1 20.05 1.750.1 40.1 ST-32EA Installation example (ST-32EA) 2.5 3 1 3 1 Direction of feed Direction of feed <Bulk pack specifications> OUnit of bulk in a plastic bag is 100 pcs. per pack. O Boxing of bulk in a plastic bag is performed with 500 pcs. per box. 5.5 max.