SM-3TW203

SURFACE MOUNT CERMET TRIMMERS RoHS compliant SM-3/31 INTERNAL STRUCTURE 1 9 2 3 4 5 8 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.) 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 - 3 □ T W 1 kΩ ( 1 0 2 ) Series name Resistance code Electrical turn Resistance value Blank：11 turns 1：5 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, W：J-hook B：Gull wing SM-3/31 SURFACE MOUNT TRIMMERS ■ LIST OF PART NUMBERS Adjustment position Electrical turns 11 Side adjustment Top adjustment 5 Side adjustment Taping (reel) Plastic bag W (J-hook) SM-3TW SM-3W A (J-hook) SM-3TA SM-3A B (Gull wing) SM-3TB SM-3B W (J-hook) SM-31TW SM-31W A (J-hook) SM-31TA SM-31A B (Gull wing) SM-31TB SM-31B 500 pcs./reel Pieces in package Fig. 1 ※ 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 50 Ω ~ 2 M Ω Operating torque 5 mN·m {51 gf·cm} maximum ± 20 % Mechanical stop Clutch action Resistance tolerance Power ratings 20 kΩ 50 kΩ 100 kΩ 200 kΩ 500 kΩ 1 MΩ 2 MΩ 50 pcs./pack ■ ELECTRICAL CHARACTERISTICS Nominal resistance range 50 Ω 100 Ω 200 Ω 500 Ω 1 k Ω 2 k Ω 5 k Ω 10 k Ω Form of packaging Shape of terminal Top adjustment 〈Nominal resistance values〉 0.125 W (70 °C) 0 W (150 °C) Rotational life 200 cycles [ Δ R/R ≦ ± (2 Ω +3 %)] （B） Thrust to shaft 5 N {0.51 kgf} minimum Resistance law Linear law Maximum input voltage DC200 V or power rating, whichever is smaller Solderability 245 ± 3 °C, 2 ~ 3 s Maximum wiper current 100 mA or power rating, whichever is smaller Shear (Adhesion) 5 N {0.51 kgf} 10 s Effective electrical turn 11 turns (SM-3) / 5 turns (SM-31) Substrate bending Width 90 mm, bend 3 mm, 5 s, 1 time End resistance 1 % or 3 Ω , whichever is greater Pull-off strength C.R.V. 3 % or 3 Ω , whichever is greater Insulation resistance ± 100 10-6/°C maximum 100 M Ω minimum (DC500 V) Dielectric strength AC600 V, 60 s Net weight Approx. 0.10 g 〈Reflow profile for soldering heat evaluation〉 Temperature (℃) 250 200 150 100 50 Peak : 250 +5 0 ℃ Over 230 ℃ 180 ℃ 150 ℃ { }：Reference only − 65 ~ 150 °C Operating temp. range Temp. coefficient 5 N {0.51 kgf} 10 s Pre Heating Zone 90 ± 30 s 30 ± 10 s Heating time Soldering Zone Reflow : two times maximum ■ ENVIRONMENTAL CHARACTERISTICS Test item Test conditions Specifications Thermal shock − 65 ~ 150 °C (0.5 h), 5 cycles [ Δ R/R ≦ 2 %] [S.S. ≦ 2 %] Humidity [ Δ R/R ≦ 3 %] 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 70 °C, 0.125 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 Soldering heat (Please refer to the profile below.) Manual soldering：350 ± 10 °C, 3 ~ 4 s [ Δ R/R ≦ 1 %] [S.S. ≦ 1 %] [ Δ R/R ≦ 3 %] [S.S. ≦ 2 %] [ Δ R/R ≦ 2 %] [S.S. ≦ 2 %] [ Δ R/R ≦ 3 %] [S.S. ≦ 2 %] No leaks (No continuous bubbles) [ Δ R/R ≦ 1 %] Δ R/R：Change in total resistance S.S. ：Setting stability SM-3/31 SURFACE MOUNT TRIMMERS ■ MAXIMUM INPUT RATINGS Nominal resistance values ( Ω ) Resistance code Maximum input voltage (V) Maximum wiper current (mA) 50 100 200 500 500 101 201 501 2.50 3.53 5.00 7.91 50.0 35.4 25.0 15.8 1 k 2 k 5 k 10 k 20 k 50 k 102 202 502 103 203 503 11.2 15.8 25.0 35.4 50.0 79.1 11.2 7.91 5.00 3.54 2.50 1.58 100 k 200 k 500 k 1 M 2 M 104 204 504 105 205 112 158 200 200 200 1.12 0.79 0.40 0.20 0.10 ■ RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS ● SM-3W/31W ● SM-3A/31A (Unit : mm) ● SM-3B/31B 1.3 1.3 1.3 4 0 0 0 1.6 1.6 1.6 0 4.4 1.3 2.43 3.12 1.6 1.6 2 1.3 2.8 0.9 2.8 2 0.9 0.9 2.8 2.8 ※ Also available to place as the above. 0.9 Note) The zero point is the center of mounting. ■ OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ± 0.3 (Unit : mm) ● SM-3W/31W Top adjustment 1 3 CW rotation 2 Resistance code & Production date code 1 0.8 1 3 2.3 3.2 3.5 3.9 0.6 2.8 2 3.9 4.2 0.4W × 1.3L × 0.3D 0.8 ※ Note the terminal position. SM-3/31 SURFACE MOUNT TRIMMERS ■ OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ± 0.3 (Unit : mm) ● SM-3A/31A Side adjustment ● SM-3B/31B Side adjustment 2 ※ Note the terminal position. 2.5 2.5 0.4W × 1.3L × 0.3D 0.4W × 1.3L × 0.3D 3.9 3.9 1 3.4 3 – 0.8 2 5.3 3.9 3 – 0.8 2 3.4 3.9 1 3 CW rotation Resistance code & Production date code Resistance code & Production date code 4.4 1 2 – 0.6 3 1 2.8 3 2 – 0.6 2.8 1 ■ PACKAGING SPECIFICATIONS ● 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. ● Taping version is boxed with one reel. ● EMBOSSED TAPE DIMENSIONS Maximum number of consecutive missing pieces = 2 Leader length and reel dimension are shown in the diagrams below. ● REEL DIMENSIONS （Conforms to JIS C 0806-3） （In accordance with EIAJ ET-7200A） Filled (Unit: mm) Empty End 13 Head Direction of feed 20 pitches min. 21±0.8 2±0.5 Leader 60 40 mm min. +1 0 +1 0 Empty 400 mm min. 13±0.2 0 180 –1.5 15.4±1 SM-3/31 SURFACE MOUNT TRIMMERS ● SM-3TW/31TW 1.75 ± 0.1 4 ± 0.1 2 ± 0.05 φ 1. A 0.4 ± 0.1 Installation example (SM-3W) 12 +0.3 –0.1 5.5 ± 0.05 .1 +0 0 5 3 A 2 8 ± 0.1 1 Cross section A-A 4.7 φ .1 +0 0 5 1. 4 ± 0.1 2 ± 0.05 A 3 1.75 ± 0.1 ● SM-3TA/31TA 0.4 ± 0.1 Installation example (SM-3A) +0.3 12 –0.1 5.5 ± 0.05 1 A 3.9 8 ± 0.1 2 Cross section A-A φ .1 +0 0 5 1. 4 ± 0.1 2 ± 0.05 A 3 1.75 ± 0.1 ● SM-3TB/31TB 0.4 ± 0.1 Installation example (SM-3B) A 2 8 ± 0.1 ● 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. +0.3 12 –0.1 5.5 ± 0.05 1 3.9 Cross section A-A