ST7TB202

COPAL ELECTRONICS SURFACE MOUNT TYPE TRIMMERS 3 TURNS SURFACE MOUNT TYPE TRIMMERS ST-7 INTERNAL STRUCTURE 13 1 12 8 9 11 10 3 7 Part name ■ FEATURES ● Fine adjustment is possible ● Automatic mounting is possible (Taping) ● Flow/reflow soldering is possible ● Sealed construction (Washable) 6 5 4 2 Material Flammability PPS (Polyphenylenesulphide) UL-94V-0 1 Rotor gear 2 Base element Ceramic 3 Terminal pin Copper alloy, Solder-plated 4 Resistive element RuO2 cermet 5 Electrode Ag-Pd cermet 6 Housing base 7 Wiper 8 Shaft 9 Housing !0 Shaft “O” ring !1 Base “O” ring !2 Clutch spring !3 Cover — PPS (Polyphenylenesulphide) UL-94V-0 Multi metal alloy — PPS (Polyphenylenesulphide) UL-94V-0 Silicone rubber UL-94HB Stainless steel — CFCs, Halon, Carbon tetrachloride and designated bromic flame retardant PBBOs and PBBs are not used in our products. ■ PART NUMBER DESIGNATION S T - 7 T A 1 k Ω ( 1 0 2 ) Series name Resistance code Form of packaging Resistance value T : Taping (Reel) Blank : Bulk in vinyl bags Product shape (Shape of terminal) A : J-hook B : Gull wing ❈ Please refer to the LIST OF PART NUMBERS when placing orders. ■ Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request. COPAL ELECTRONICS ST-7 ■ LIST OF PART NUMBERS Adjustment position Top adjustment Form of packaging Shape of terminal Taping (reel) Bulk packaging A (J-hook) ST-7TA ST-7A B (Gull wing) ST-7TB ST-7B 500 pcs./reel 50 pcs./pack Pieces in package ■ ELECTRICAL CHARACTERISTICS 50 Ω 100 Ω 200 Ω 500 Ω 10 kΩ 20 kΩ 1 kΩ 2 kΩ 5 kΩ 50 kΩ 100 kΩ 200 kΩ 500 kΩ 1 MΩ 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 version must be purchased in reel units. ■ MECHANICAL CHARACTERISTICS Nominal resistance range 50 Ω ~ 1 MΩ Mechanical turn 3 turns Total resistance tolerance ± 20 % Operating torque 5 mN·m {51 gf·cm} maximum Mechanical stop Clutch action Power ratings Resistance law 0.25 W (70 °C) 0 W (125 °C) DC200 V or power rating, whichever is smaller Maximum wiper current 100 mA or power rating, whichever is smaller Effective electrical turn 2.5 turns End resistance 1 % or 2 Ω, whichever is greater C.R.V. 1 % or 3 Ω, whichever is greater Temp. coefficient Insulation resistance 100 cycles [∆R/R ≤_ ± (2 Ω + 3 %)] Thrust to shaft 5 N {0.51 kgf} minimum Linear law Maximum input voltage Operating temp. range Rotational life −55 ~ + 125 °C 235 °C, 2 s Solderability Shear (Adhesion) 5 N {0.51 kgf} 10 s Substrate bending Width 90 mm, bend 3 mm, 5 s, 1 time Pull-off strength 5 N {0.51 kgf} 10 s { } : Reference only ■ ENVIRONMENTAL CHARACTERISTICS 50 Ω : ± 250 ppm/°C maximum 100 Ω ~ 1 MΩ : ± 100 ppm/°C maximum Test item Test conditions Specifications 1000 MΩ minimum (DC500 V) Thermal shock −65 ~ +125 °C (0.5 h), 5 cycles _ 2 %] [∆R/R ≤ _ 1 %] [S.S. ≤ Dielectric strength AC600 V, 60 s Net weight Approx. 0.25 g Humidity Shock Vibration Load life −10 ~ +65 °C (80 ~ 98 %RH), 10 cycles, 240 h 981 m/s2, 6 ms 6 directions for 3 times each Amplitude of 1.52 mm or Acceleration of 196 m/s2, 10~2000 Hz, 3 directions, 12 times each 70 °C, 0.25 W, 1000 h _ 2 %] [∆R/R ≤ _ 1 %] [∆R/R ≤ _ 1 %] [S.S. ≤ _ 3 %] [∆R/R ≤ _ 1 %] [S.S. ≤ _ 2 %] [∆R/R ≤ _ 2 %] [S.S. ≤ _ 3 %] [∆R/R ≤ _ 2 %] [S.S. ≤ 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 260 °C, 10 s or 215 °C, 35 s _ 1 %] [∆R/R ≤ ∆R/R : Change in total resistance S.S. : Setting stability ■ Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request. SURFACE MOUNT TYPE TRIMMERS SURFACE MOUNT TYPE TRIMMERS COPAL ELECTRONICS ST-7 ■ RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS ■ MAXIMUM INPUT RATINGS Resistance code Maximum input voltage (V) Maximum wiper current (mA) 50 100 200 500 500 101 201 501 3.53 5.00 7.07 11.2 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 104 204 504 105 158 200 200 200 1.58 1.00 0.40 0.20 ● ST-7A 2 ● ST-7B (Unit: mm) 2 2 2 Nominal resistance values (Ω) 2 2 5.5 0 3.5 0 1.6 1.6 1.6 2.35 1.6 2.35 Note) The zero point is the center of mounting. ■ OUTLINE DIMENSIONS ● ST-7A Top adjustment Unless otherwise specified, tolerance : ± 0.3 1 0.5 W × 1.8 L × 0.5 D 6.4 3 CW rotation 1.2 3.4 1.5 2 1 2.3 0.5 W × 1.8 L × 0.5 D 6.4 2 3.4 1.5 0.35 min. Resistance code & Production date code ● ST-7B Top adjustment 2 – 0.8 0.02 min. Solder-plated t = 0.15 3 4.3 6.1 0 6.8 –0.5 1.5 2 (Unit: mm) 1.2 7.8 Solder-plated t = 0.15 1 3 0.02 min. 0.35 min. 6.1 1.5 SURFACE MOUNT TYPE TRIMMERS SURFACE MOUNT TYPE TRIMMERS 2 – 0.8 2.3 Resistance code & Production date code ❈ The ST-7 series has a different terminal arrangement from the ST-3 and ST-4 series. Pay attention to the location of terminals number 1 and 3. (Resistance decreases when the shaft is turned CCW.) ■ Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request. COPAL ELECTRONICS ST-7 ■ 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 (500 pcs.). ● EMBOSSED TAPE DIMENSIONS Maximum number of consecutive missing pieces=2 Leader length and reel dimension are shown in the diagrams below. ● REEL DIMENSIONS (Unit: mm) 16.4 Filled 21±0.8 Empty End 2±0.5 80 min. Empty +2 0 Head 13±0.2 40 mm min. 20 pitches min. Leader Direction of feed 250±2 22.4 max. 400 mm min. ● Test method for peeling strength of seal tape ● Reel & embossed tape materials Embossed tape: Plastic Reel: Paper ● Embossed tape pull strength 9.8 N {1kgf} minimum ● Peeling strength of seal tape 0.098~0.69 N {10~70gf} Seal cover tape Peel direction (300 mm/min) 165°~180° Direction of feed { } : Reference only Direction of feed 12±0.1 4±0.1 2±0.1 5 0.4±0.1 Installation example (ST-7B) 16 Installation example (ST-7A) 7.5±0.1 7.5±0.1 0.4±0.1 16 2±0.1 +0.1 0 4±0.1 φ 1.5 +0.1 0 φ1.5 12±0.1 1.75±0.1 ● ST-7TB 1.75±0.1 ● ST-7TA Carrier tape Direction of feed 5 ● Unit of bulk in vinyl bag packaging is 50 pcs. per pack. ● Boxing of bulk in vinyl bags is performed with 200 pcs. per box. ■ Specifications are subject to change without notice. Specifications in this catalog are for reference. The formal specification sheets will be submitted upon request. SURFACE MOUNT TYPE TRIMMERS SURFACE MOUNT TYPE TRIMMERS