SM-43A102

SURFACE MOUNT CERMET TRIMMERS RoHS compliant SM-42/43 INTERNAL STRUCTURE ② ③ ⑨ ① ⑧ ④ ⑤ ⑦ ⑥ Part name ■ FEATURES ● ● ● ● ● ● RoHS compliant Fine adjustment is possible Automatic mounting is possible (Taping) Reflow soldering is possible Sealed construction (Washable: Refer to page 698.) Resin material is UL Recognized 94V-0 Material 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 Polyphenylenesulphide Ceramic Epoxy Multi metal alloy Copper alloy, Sn-Cu-plated Polyamide Brass, Nickel-plated ■ PART NUMBER DESIGNATION S M - 4 □ T W 1 0 0Ω ( 1 0 1 ) Series name Resistance code Electrical turn Resistance value 2：11 turns 3：5 turns Form of packaging T：Taping (Reel) Blank：Bulk in plastic bag ※ Please refer to the LIST OF PART NUMBERS when placing orders. Product shape (Shape of terminal) A：J-hook (Side adjustment) B：Gull wing(Side adjustment) W：J-hook (Top adjustment) X：Gull wing (Top adjustment) 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〉 Taping (reel) Plastic bag W (J-hook) SM-42TW SM-42W X (Gull wing) SM-42TX SM-42X A (J-hook) SM-42TA SM-42A B (Gull wing) 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 → 10 Ω → 20 Ω 50 Ω 1 kΩ 2 kΩ 10 kΩ 50 kΩ 100 kΩ 200 kΩ 500 kΩ 1 MΩ 2 MΩ 20 kΩ 100 Ω 200 Ω 500 Ω 5 kΩ Fig. 1 The products indicated by → mark are manufactured upon receipt of order basis. ※ The above part numbers are all available with the respective combination of (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 Operating torque 17.6 mN·m {180 gf·cm} maximum Mechanical stop Clutch action Rotational life 200 cycles [ Δ R/R ≦ ± (3 Ω +3 %)] Thrust to shaft 5 N {0.51 kgf} minimum Solderability 245 ± 3 °C, 2 ~ 3 s ± 10 % Shear (Adhesion) 5 N {0.51 kgf} 10 s Power ratings 0.25 W (85 °C) 0 W (150 °C) Substrate bending Width 90 mm, bend 3 mm, 5 s, 1 time Resistance law Linear law 10 Ω ~ 2 MΩ Nominal resistance range Resistance tolerance Maximum input voltage DC300 V or power rating, whichever is smaller Maximum wiper current 100 mA or power rating, whichever is smaller Effective electrical turn 11 turns (SM-42), 5 turns (SM-43) 1 % or 2 Ω, whichever is greater End resistance 1 % or 3 Ω, whichever is greater C.R.V. − 65 ~ 150 °C Operating temp. range ± 100 10 /°C maximum Temp. coefficient -6 Insulation resistance 100 MΩ minimum (DC500 V) Dielectric strength AC600 V, 60 s Net weight Approx. 0.17 g Temperature 〈Reflow profile for soldering heat evaluation〉 (℃) 250 Peak : 250 ℃ 200 Pre Heating Zone 150 100 50 Pull-off strength 5 N {0.51 kgf} 10 s { }：Reference only ■ ENVIRONMENTAL CHARACTERISTICS Test item Thermal shock Humidity Shock Test conditions Specifications − 65 ~ 150 °C (0.5 h), 5 cycles − 10 ~ 65 °C (80 ~ 98 %), 10 cycles, 240 h 981 m/s2, 6 ms 6 directions for 3 times each [ Δ R/R ≦ 2 %] [S.S. ≦ 1 %] 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 [ Δ R/R ≦ 2 %] [ Δ R/R ≦ 1 %] [S.S. ≦ 1 %] [ Δ R/R ≦ 3 % or 3 Ω ] [S.S. ≦ 2 %] [ Δ R/R ≦ 1 %] [S.S. ≦ 1 %] [ Δ R/R ≦ 2 %] [S.S. ≦ 1 %] No leaks (No continuous bubbles) +5 0 Over 230 ℃ 180 ℃ 150 ℃ 90±30 s 30±10 s Heating time Soldering Zone  Reflow : two times maximum Reflow : Peak temperature 255 °C (Please refer to the profile below.) Soldering heat Manual soldering：350 ± 10 °C, 3 ~ 4 s [ Δ R/R ≦ 1 %] Δ R/R：Change in total resistance S.S. ：Setting stability SM-42/43 SURFACE MOUNT TRIMMERS ■ MAXIMUM INPUT RATINGS Resistance code Nominal resistance values ( Ω ) Maximum input Maximum wiper voltage (V) current (mA) → 10 → 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 1 k 2 k 5 k 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 1 M 2 M 104 204 504 105 205 158 223 300 300 300 1.58 1.12 0.60 0.30 0.15 The products indicated by → 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 Unless otherwise specified, tolerance : ± 0.3 (Unit : mm) 3.9 ① ● SM-42/43W 3.5 Resistance code & Production date code ① ② 1.3 ② Note the terminal position. 3 – 0.9 1.2 4.8 2.54 2 – 0.8 ③ CW rotation Φ 1.5, Slot ③ 0.56W × 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 Φ 1.5, Slot ③ 0.56W × 0.5D 5.1 3–1 5.3 ● SM-42/43A 3.7 3 – 0.8 Resistance code & Production date code ① 2 – 0.9 4.8 1.2 1.3 2.3 3–1 ② ③ Φ 1.5, Slot 0.56W× 0.5D 2.6 4.6 5 ● SM-42/43B ① 1.2 2.3 1.3 4.8 ② 2 – 0.9 Φ 1.5, Slot 0.56W × 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 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. Maximum number of consecutive missing pieces = 2 Leader length and reel dimension are shown in the dia-grams below. ● 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. 21±0.8 20 pitches min. 2±0.5 60 Leader +1 0 End 13 0 (TA/TB) 170.3 (TW, TX) 400 mm min. Direction of feed 13±0.2 0 15.4±1 (TA/TB) 19.5±1 (TW/TX) 180 –1.5 (TA/TB) 0 180 –3 (TW, TX) 12±0.1 5.75 Cross section A-A ● 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 1.75±0.1 0.4±0.1 Installation example (SM-42A) 12 7.5±0.1 1 2±0.1 3 .1 +0 0 A 1 A 5 1. 2 Installation example (SM-42W) φ .1 +0 0 5 1. 3 4±0.1 0.5±0.1 5.5±0.05 2±0.1 +0.3 φ A 16 –0.1 4±0.1 ● SM-42/43TA/TB 1.75±0.1 ● SM-42/43TW/TX 4.5 A 8±0.1 Cross section A-A