SURFACE MOUNT CERMET TRIMMERS RoHS compliant SM-42/43 INTERNAL STRUCTURE 9 1 2 3 8 4 5 7 6 Part name FEATURES RoHS compliant Fine adjustment is available Automatic mounting is available (Taping) Reflow soldering is available Sealed construction (Washable: Refer to page 698.) Material Flammability Polyphenylenesulphide UL94V-0 1 Housing 2 Base element 3 Electrode Ag-Pd cermet 4 Resistive element RuO2 cermet 5 Adhesive 6 Wiper 7 Terminal pin 8 Rotor gear 9 Shaft Ceramic -- Epoxy Multi metal alloy Copper alloy, Sn-Cu-plated Polyamide UL94V-0 Brass, Nickel-plated -- PART NUMBER DESIGNATION S M - 4 T W 1 0 0 ( 1 0 1 ) Series name Resistance code Electrical turn Resistance value 211 turns 35 turns Form of packaging Product shape (Shape of terminal) TTaping (Reel) BlankBulk in plastic bag W, XTop adjustmet A, BSide adjustmet Please refer to the LIST OF PART NUMBERS when placing orders. SM-42/43 SURFACE MOUNT TRIMMERS LIST OF PART NUMBERS Electrical turn Form of packaging Adjustment Shape of terminal position Top adjustment 11 Side adjustment Top adjustment 5 Side adjustment Nominal resistance values Plastic bag 10 k 20 k 50 k 100 k 200 k 500 k 1 M 2 M W (J-hook) SM-42TW SM-42W The products indicated by A mark are manufactured upon receipt of order basis. X (Gull wing) SM-42TX SM-42X J A (J-hook) SM-42TA SM-42A B (Gull wing) The above part numbers 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. SM-42TB SM-42B W (J-hook) SM-43TW SM-43W X (Gull wing) SM-43TX SM-43X A (J-hook) SM-43TA SM-43A B (Gull wing) SM-43TB SM-43B TA, TB : 500 pcs./reel TW, TX : 250 pcs./reel 50 pcs./pack Pieces in package ELECTRICAL CHARACTERISTICS Effective electrical turn 11 turns (SM-42), 5 turns (SM-43) End resistance 1 % or 2 , whichever is greater C.R.V. 1 % or 3 , whichever is greater - 65 ~ 150 C Operating temp. range 100 10 /C maximum -6 100 M minimum (DC500 V) Dielectric strength AC600 V, 60 s Net weight Approx. 0.17 g Reflow profile for soldering heat evaluation Temperature 100 50 200 cycles [ R/R (3 +3 %)] Thrust to shaft 5 N {0.51 kgf} minimum Width 90 mm, bend 3 mm, 5 s, 1 time 100 mA or power rating, whichever is smaller Peak : 250 +5 0 Over 230 150 Rotational life Substrate bending Maximum wiper current 150 Clutch action 0.25 W (85 C) 0 W (150 C) DC300 V or power rating, whichever is smaller 180 Mechanical stop 5 N {0.51 kgf} 10 s Maximum input voltage 200 17.6 mN*m {180 gf*cm} maximum Shear (Adhesion) Linear law () 250 Operating torque 10 % Resistance law Insulation resistance MECHANICAL CHARACTERISTICS 245 3 C, 2 ~ 3 s Resistance tolerance Temp. coefficient Fig. 1 Solderability 10 ~ 2 M Nominal resistance range Power ratings A10 A20 50 100 200 500 1 k 2 k 5 k Taping (reel) Pull-off strength 5 N {0.51 kgf} 10 s { }Reference only ENVIRONMENTAL CHARACTERISTICS Test item Test conditions Thermal shock - 65 ~ 150 C (0.5 h), 5 cycles [ R/R 2 %] [S.S. 1 %] Humidity [ R/R 2 %] Shock - 10 ~ 65 C (80 ~ 98 %), 10 cycles, 240 h 981 m/s2, 6 ms 6 directions for 3 times each Vibration (Amplitude) 1.52 mm or (Acceleration) 196 m/s2, 10 ~ 2000 Hz, 3 directions, 12 times each Load life 85 C, 0.25 W, 1000 h Low temp. operation - 65 C, 2 h High temp. exposure 150 C, 250 h Immersion seal 85 C, 60 s Reflow : Peak temperature 255 C (Please refer to the profile below.) Soldering heat Manual soldering350 10 C, 3 ~ 4 s Pre Heating Zone 90 30 s Specifications [ R/R 1 %] [S.S. 1 %] [ R/R 3 % or 3 ] [S.S. 2 %] [ R/R 1 %] [S.S. 1 %] [ R/R 2 %] [S.S. 1 %] No leaks (No continuous bubbles) [ R/R 1 %] 30 10 s Heating time Soldering Zone Reflow : two times maximum R/RChange in total resistance S.S. Setting stability SM-42/43 SURFACE MOUNT TRIMMERS MAXIMUM INPUT RATINGS Nominal resistance Resistance code Maximum input values ( ) voltage (V) Maximum wiper current (mA) A 10 A 20 50 100 200 500 100 200 500 101 201 501 1.00 2.00 3.53 5.00 7.07 11.2 100 100 70.7 50.0 35.4 22.4 1k 2k 5k 10 k 20 k 50 k 102 202 502 103 203 503 15.8 22.4 35.4 50.0 70.7 112 15.8 11.2 7.07 5.00 3.54 2.24 100 k 200 k 500 k 1M 2M 104 204 504 105 205 158 223 300 300 300 1.58 1.12 0.60 0.30 0.15 The products indicated by A mark are manufactured upon receipt of order basis. RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS SM-42/43B SM-42/43X 2 2 2.3 5.1 0 2.3 1.3 2.54 1.3 1.9 1.3 1.3 2.9 0 1.6 5.2 0 2 0 4 1.6 2 1.9 2 2 SM-42/43W 1.3 SM-42/43A (Unit: mm) 2.54 1.3 Note) The zero point is the center of mounting. SM-42/43 SURFACE MOUNT TRIMMERS OUTLINE DIMENSIONS SM-42/43W 3.9 1 Resistance code & Production date code 3.5 3 CW rotation 2 Note the terminal position. 3 - 0.9 1.2 4.8 2.54 2 1.3 1 2 - 0.8 Unless otherwise specified, tolerance : 0.3(Unit : mm) 1.5, Slot 3 0.56W x 0.5D 5.1 2.6 3-1 5.3 SM-42/43X 5.7 Resistance code & Production date code 3.5 2 2 - 0.8 1.2 4.8 2.54 1.3 1 1.5, Slot 0.56W x 0.5D 3 5.1 3-1 5.3 SM-42/43A 3.7 3 - 0.8 Resistan ce code & Produ ction d ate code 2 - 0.9 4.8 1.2 1.3 2.3 3-1 1.5, Slot 0.56W x 0.5D 2.6 4.6 5 SM-42/43B 1 1.2 2.3 1.3 4.8 2 2 - 0.9 1.5, Slot 0.56W x 0.5D 2.8 4.6 6 3 3 - 0.6 3.9 Resistance code & Production date code SM-42/43 SURFACE MOUNT TRIMMERS PACKAGING SPECIFICATIONS <Taping packaging specifications> Maximum number of consecutive missing pieces = 2 Leader length and reel dimension are shown in the diagrams below. Taping version (SM-42/43TA, TB) is packaged in 500 pcs. per reel. Orders will be accepted for units of 500 pcs., i.e., 500, 1000, 1500 pcs., etc. SM-42/43TW, TX is packaged in 250 pcs. per reel. Orders will be accepted for units of 250 pcs., i.e., 500, 750 pcs., etc. EMBOSSED TAPE DIMENSIONS REEL DIMENSIONS Conforms to JIS C 0806-3 TA/TB type : In accordance with EIAJ ET-7200A Empty Filled (Unit: mm) Empty +1 Head 40 mm min. 210.8 20 pitches min. 20.5 Direction of feed 60 Leader +1 0 End 13 0 (TA/TB) 170.3 (TW, TX) 400 mm min. 130.2 0 180 -1.5 (TA/TB) 0 180 -3 (TW, TX) A 1 12 0.1 1.75 0.1 5.5 0.05 1 2 0.1 3 5.75 Cross section A-A <Bulk pack specifications> Unit of bulk in a plastic bag is 50 pcs. per pack. Boxing of bulk in a plastic bag is performed with 200 pcs. per box. 2 A 8 0.1 0.4 0.1 Installation example (SM-42A) 12 A .1 +0 0 2 4 0.1 5 1. 7.5 0.1 3 0.5 0.1 Installation example (SM-42W) +0.3 2 0.1 .1 +0 0 .5 1 A SM-42/43TA/TB 16 -0.1 4 0.1 1.75 0.1 SM-42/43TW/TX 15.41 (TA/TB) 19.51 (TW/TX) 4.5 Cross section A-A