ST32EA101

SURFACE MOUNT CERMET TRIMMERS (SINGLE TURN) RoHS compliant ST-32 INTERNAL STRUCTURE 2 1 7 6 5 3 ■ FEATURES ● RoHS compliant ● Rotor with a cross slot for ease of adjustment ● Leaded terminals provide strong as adhesive strength against P.C.B. bending ● J-hook, Gull wing and leaded terminal configurations ● Sealed (Washable: Refer to page 698.) ● Resin materials are UL Recognized 94V-0 or 94V-1 equivalent 4 9 8 Part name Material 1 Wiper Multi metal alloy 2 Cover Stainless steel (SUS 304) 3 Housing 4 Terminal pin Copper alloy, Sn-Cu-plated 5 Base element Ceramic 6 “O” ring 7 Rotor 8 Electrode Ag-Pd cermet 9 Resistive element RuO2 cermet Epoxy Silicone rubber PPS Polyphenylenesulphide ■ PART NUMBER DESIGNATION S T - 3 2 E T A 1 0 0 Ω ( 1 2 ) Series name Resistance code Terminal pin Resistance value E：Sn-Cu (Lead-free) 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(Top adjustment) B： Gull wing(Top adjustment) G：J-hook (Side adjustment) H：Gull wing(Side adjustment) ST-32 SURFACE MOUNT TRIMMERS ■ LIST OF PART NUMBERS Adjustment Shape of position terminal Top adjustment Side adjustment ) B (Gull wing) G ( J-hook ) H (Gull wing) A ( J-hook Pieces in package 〈Nominal resistance values〉 Form of packaging Taping (reel) Plastic bag ST-32ETA ST-32EA ST-32ETB ST-32EB ST-32ETG ST-32EG ST-32ETH ST-32EH 500 pcs./reel 100 pcs./pack A 10 Ω A 20 Ω 50 Ω 100 Ω 200 Ω 300 Ω 500 Ω 1 kΩ 2 kΩ 3 kΩ 5 kΩ 10 kΩ 20 kΩ 30 kΩ 50 kΩ 100 kΩ 200 kΩ 500 kΩ 1 MΩ 2 MΩ Fig.1 The products indicated by A mark are manufactured upon receipt of order basis. ※ The part numbers on the left 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 ■ ELECTRICAL CHARACTERISTICS 10 Ω ~ 2 MΩ Nominal resistance range Resistance tolerance ± 20 % Power ratings 0.125 W (70 °C) 0 W (125 °C) Resistance law Linear law (B) Maximum input voltage DC200 V or power rating, whichever is smaller Maximum wiper current 100 mA or power rating, whichever is smaller Effective electrical angle 210 ° (1 turn) End resistance 1 % or 2 Ω , whichever is greater C.R.V. 1 % or 3 Ω , whichever is greater − 55 ~ 125 °C Operating temp. range Temp. coefficient Insulation resistance 10 Ω ~ 50 Ω : ± 250 10-6/°C maximum 100 Ω ~ 2 MΩ : ± 100 10-6/°C maximum 1000 MΩ minimum (DC500 V) Dielectric strength 〈Reflow profile for soldering heat evaluation〉 (°C) 250 250 ° (1 turn) Operating torque 5 mN·m {51 gf·cm} maximum Stop strength 20 mN·m {204 gf·cm} minimum Rotational life 100 cycles [ Δ R/R ≦ ± (2 Ω +3 %)] Thrust to rotor 5 N {0.51 kgf} minimum Solderability 245 ± 3 °C, 2 ~ 3 s Shear (Adhesion) 5 N {0.51 kgf} 10 s Substrate bending Width 90 mm, bend 3 mm, 5 s, 1 time Peak : 250 +5 0 °C 5 N {0.51 kgf} 10 s Pull-off strength { }：Reference only ■ ENVIRONMENTAL CHARACTERISTICS Test item Thermal shock Humidity Shock AC500 V, 60 s Approx. 0.05 g (ST-32EA, EB) Approx. 0.11 g (ST-32EG, EH) Net weight Mechanical angle Test conditions Specifications − 65 ~ 125 °C (0.5 h), 5 cycles [ Δ R/R ≦ 2 %] [S.S. ≦ 1 %] − 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 [ Δ R/R ≦ 2 %] [ Δ R/R ≦ 1 %] [S.S. ≦ 1 %] [ Δ R/R ≦ 3 %] [S.S. ≦ 1 %] [ Δ R/R ≦ 2 %] [S.S. ≦ 2 %] [ Δ R/R ≦ 3 %] [S.S. ≦ 2 %] 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 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 [ Δ R/R ≦ 1 %] Temperature Over 230 °C 200 150 100 50 180 °C 150 °C Pre Heating Zone 90 ± 30 s 30 ± 10 s Heating time Soldering Zone リフロー回数：２回 Reflow : two times maximum Δ R/R：Change in total resistance S.S. ：Setting stability ST-32 SURFACE MOUNT TRIMMERS ■ MAXIMUM INPUT RATINGS Nominal resistance values ( Ω ) Resistance code A 10 A 20 Maximum input voltage (V) Maximum wiper current (mA) 11 21 51 12 22 32 52 1.00 1.58 2.50 3.53 5.00 6.12 7.91 100 79.1 50.0 35.4 25.0 20.4 15.8 1 k 2 k 3 k 5 k 10 k 20 k 30 k 50 k 13 23 33 53 14 24 34 54 11.2 15.8 19.4 25.0 35.4 50.0 61.2 79.1 11.2 7.91 6.45 5.00 3.54 2.50 2.04 1.58 100 k 200 k 500 k 1 M 2 M 15 25 55 16 26 112 158 200 200 200 1.12 0.79 0.40 0.20 0.10 50 100 200 300 500 The products indicated by A mark are manufactured upon receipt of order basis. ■ RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS ● ST-32EA, EG ● ST-32EB, EH (Unit : mm) 1.6 0.9 2.2 1.5 1.6 0.9 1 4.6 0 1.2 0.8 1.9 1.2 1 6 0 1.2 3.2 For reflow soldering 1.2 0.8 1.2 3.2 Note) The zero point is the center of mounting. ST-32 SURFACE MOUNT TRIMMERS ■ OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ± 0.3 (Unit : mm) ① ● ST-32EA Top adjustment ③ CW rotation ② ※ Note the terminal position. Cross slot for a 0 bit driver, depth : 0.45 Production date code & Lead-free Identification mark 1 digit (Location reversed every 2 years) 1.5 0.5 1 2 3.5 0.6 1.9 3.4 2 0.05 3.4 3 1 Resistance code 2 digits 2 2 – 0.7 t = 0.12 2.1 ● ST-32EB Top adjustment Cross slot for a 0 bit driver, depth : 0.45 3.4 1 Resistance code 2 digits 2 t = 0.12 2 1.9 0.05 3 1 4.4 Production date code & Lead-free Identification mark 1 digit (Location reversed every 2 years) 1.5 0.5 3.4 2 2.1 2 – 0.7 ST-32 SURFACE MOUNT TRIMMERS ■ OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ± 0.3 (Unit : mm) ① ● ST-32EG Side adjustment ③ CW rotation ② ※ Note the terminal position. Cross slot for a 0 bit driver, depth : 0.45 Production date code & Lead-free Identification mark 1 digit (Location reversed every 2 years) Adjustment 3.6 1.5 0.5 3 3.5 1 2.4 2 – 0.6 1.7 1.1 2.6 1.9 4.7 1 0.2 1 t = 0.12 Resistance code 2 digits 2 ● ST-32EH Side adjustment Cross slot for a 0 bit driver, depth : 0.45 3.6 1.5 Production date code & Lead-free Identification mark 1 digit (Location reversed every 2 years) 0.5 3 3.5 2.4 1 2 – 0.6 1.7 1.3 2.6 1.9 4.7 1.4 0.2 Adjustment Resistance code 2 digits t = 0.12 1 2 ST-32 SURFACE MOUNT TRIMMERS ■ 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. ● ST-32ETA, ETB versions are boxed with 4 reels (2000 pcs.). ST-32ETG, ETH versions are boxed with one reel (500 pcs.). Maximum number of consecutive missing pieces = 2 Leader length and reel dimension are shown in the diagrams below. ● EMBOSSED TAPE DIMENSIONS ● REEL DIMENSIONS （Conforms to JIS C 0806-3） （In accordance with EIAJ ET-7200A） Empty Filled (Unit: mm) Empty Head φ 21±0.8 40 mm min. φ 60 +10 (ETA/ETB) φ 50 min.(ETG/ETH) End 13 +10 (ETA/ETB) 13.4±1 (ETG/ETH) 2±0.5 20 pitches min. Leader 400 mm min. Direction of feed φ 13±0.2 15.4±1 (ETA/ETB) 17.4±1 (ETG/ETH) 0 (ST-32ETA/ETB) φ 180 –1.5 φ 254±2 (ST-32ETG/ETH) ● ST-32ETA, ETB ● ST-32ETG, ETH 8±0.1 4±0.1 5.5±0.1 12 5.5±0.05 .1 +0 0 2 Installation example (ST-32EA) 2.5 3 1 3 ● Unit of bulk in a plastic bag is 100 pcs. per pack. ● Boxing of bulk in a plastic bag is performed with 500 pcs. per box. 0.4±0.1 Installation example (ST-32EH) 1 5.5 max. Direction of feed Direction of feed 1.75±0.1 8±0.1 2±0.1 .5 φ1 .1 +0 0 .5 φ1 2 0.3±0.1 12 2±0.05 1.75±0.1 4±0.1