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ST-4/42EG Scheda tecnica(PDF) 2 Page - Copal Electronics |
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ST-4/42EG Scheda tecnica(HTML) 2 Page - Copal Electronics |
2 / 6 page Top adjustment Nominal resistance range ST-4 SURFACE MOUNT TRIMMERS :Not manufactured ※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. ※Cross slot available : ST-42E □ ■ LIST OF PART NUMBERS Adjustment position Rear adjustment Side adjustment Pieces in package Shape of terminal A (J-hook) G (J-hook) B (Gull wing) D (Gull wing) H (Gull wing) C (Through hole pins) F (Through hole pins) Form of packaging Taping (reel) ST-4/42ETA ST-4/42EA ST-4/42ETB ST-4/42EB ST-4/42EC A ST-4/42ETD A ST-4/42ED A ST-4/42EF ST-4/42ETG ST-4/42EG ST-4/42ETH ST-4/42EH Plastic bag 500 pcs./reel 100 pcs./pack The products indicated by A mark are manufactured upon receipt of order basis. ※ C slot : ST-4E □ , B slot : ST-42E □ 〈Nominal resistance values〉 A10 Ω A20 Ω 50 Ω 100 Ω 200 Ω 500 Ω 1 kΩ 2 k Ω 5 k Ω 10 k Ω 20 kΩ 50 kΩ 100 kΩ 200 kΩ 500 kΩ 1 MΩ 2 MΩ ΔR/R:Change in total resistance S.S. :Setting stability ■ ELECTRICAL CHARACTERISTICS ■ MECHANICAL CHARACTERISTICS 10 Ω ~ 2 MΩ ± 20 % 0.25 W (70 °C) 0 W (125 °C) Linear law (B) DC200 V or power rating, whichever is smaller 100 mA or power rating, whichever is smaller 210° (1 turn) 1 % or 2 Ω, whichever is greater 1 % or 3 Ω, whichever is greater −55 ~ 125 °C 10 Ω ~ 50 Ω : ± 250 10-6/°C maximum 100 Ω ~ 2 MΩ : ± 100 10-6/°C maximum 1000 M Ω minimum (DC500 V) AC500 V, 60 s Approx. 0.12 g (ST-4EA, EB, EC, ED, EF) Approx. 0.22 g (ST-4EG, EH) Resistance tolerance Power ratings Resistance law Maximum input voltage Maximum wiper current Effective electrical angle End resistance C.R.V. Operating temp. range Temp. coefficient Insulation resistance Dielectric strength Net weight Mechanical angle 240° (1 turn) 10 mN·m {102 gf·cm} maximum 30 mN·m {306 gf·cm} minimum 100 cycles [ ΔR/R ≦ ± (2 Ω +3 %)] 5 N {0.51 kgf} minimum 245 ± 3 °C, 2 ~ 3 s 5 N {0.51 kgf} 10 s Width 90 mm, bend 3 mm, 5 s, 1 time 5 N {0.51 kgf} 10 s Operating torque Stop strength Rotational life Thrust to rotor Solderability Shear (Adhesion) Substrate bending Pull-off strength ■ ENVIRONMENTAL CHARACTERISTICS Test item Test conditions Specifications Thermal shock −65 ~ 125 °C (0.5 h), 5 cycles [ ΔR/R ≦ 2 %] [S.S. ≦ 1 %] Humidity −10 ~ 65 °C (80 ~ 98 %), 10 cycles, 240 h [ ΔR/R ≦ 2 %] Shock 981 m/s 2, 6 ms 6 directions for 3 times each [ ΔR/R ≦ 1 %] [S.S. ≦ 1 %] Vibration (Amplitude) 1.52 mm or (Acceleration) 196 m/s 2, 10 ~ 2000 Hz, 3 directions, 12 times each Load life 70 °C, 0.25 W 1000 h [ ΔR/R ≦ 3 %] [S.S. ≦ 1 %] Low temp. operation −55 °C, 2 h [ ΔR/R ≦ 2 %] [S.S. ≦ 2 %] High temp. exposure 125 °C, 250 h [ ΔR/R ≦ 3 %] [S.S. ≦ 2 %] Immersion seal 85 °C, 60 s No leaks (No continuous bubbles) Soldering heat [ ΔR/R ≦ 1 %] Fig. 1 { }:Reference only Reflow profile for soldering heat evaluation〉 Reflow : two times maximum Peak : 250 Over 230 C Pre Heating Zone 180 C (C) 250 200 150 100 50 150 C 90 30 s 30 10 s Soldering Zone Heating time C +5 0 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 soldering :350 ± 10 °C, 3 ~ 4 s |
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