ST4ETA103

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SURFACE MOUNT CERMET TRIMMERS (SINGLE TURN) O3P)4DPNQMJBOU O8JEFWBSJFUZ UZQFT UPDIPPTFGSPN O"VUPNBUJDNPVOUJOHJTQPTTJCMF 5BQJOH O'MPXSFGMPXTPMEFSJOHJTQPTTJCMF O4FBMFEDPOTUSVDUJPO 8BTIBCMF3FGFSUPQBHF O4UPQQFSTUSVDUVSFQSFWFOUTUFSNJOBMQJOGSPNCFJOHPQFO O$SPTTTMPUSPUPSTVJUBCMFGPSBVUPNBUJDBEKVTUNFOU ˙FEATURES Part name Material Flammability Wiper Cover Housing Terminal pin Base element “O” ring Rotor Electrode Resistive element Multi metal alloy Stainless steel (SUS 304) Epoxy UL94V-0 Copper alloy, Sn-Cu-plated Ceramic Silicone rubber UL94HB Polyphenylenesulphide UL94V-0 Ag-Pd cermet RuO2 cermet INTERNAL STRUCTURE ˙PART NUMBER DESIGNATION ˞Please refer to the LIST OF PART NUMBERS when placing orders. S T - 4 E T A 2 0 0 Ω ( 2 0 1 ) Series name (minus slot) Form of packaging TɿTaping (Reel) BlankɿBulk in plastic bag Terminal pin EɿSn-Cu (Lead-free) Form of packaging TɿTaping (Reel) BlankɿBulk in plastic bag Terminal pin EɿSn-Cu (Lead-free) Resistance code Resistance value Product shape (Shape of terminal) A, GɿJ-hook B, D, HɿGull wing C, FɿThrough hole pins S T - 4 2 E T A 2 0 0 Ω ( 2 0 1 ) Series name (cross slot) Resistance code Resistance value Product shape (Shape of terminal) A, GɿJ-hook B, D, HɿGull wing C, FɿThrough hole pins ST -4 RoHS compliant

ɹɿNot 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˘ ʪNominal resistance valuesʫ A10 Ω A20 Ω 50 Ω 100 Ω 200 Ω 500 Ω 1 k Ω 2 k Ω 5 k Ω 10 k Ω 20 k Ω 50 k Ω 100 k Ω 200 k Ω 500 k Ω 1 M Ω 2 M Ω ϶R/RɿChange in total resistance S.S. ɿSetting stability ˙ ELECTRICAL CHARACTERISTICS ˙ MECHANICAL CHARACTERISTICS 10 Ω ~ 2 MΩ ± 20 % 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 MΩ 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 [϶R/R ʽ± (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 [϶R/R ʽ 2 %] [S.S. ʽ 1 %] Humidity −10 ~ 65 °C (80 ~ 98 %), 10 cycles, 240 h [϶R/R ʽ 2 %] Shock 981 m/s2, 6 ms 6 directions for 3 times each [϶R/R ʽ 1 %] [S.S. ʽ 1 %]Vibration (Amplitude) 1.52 mm or (Acceleration) 196 m/s 10 ~ 2000 Hz, 3 directions, 12 times each Load life 70 °C, 0.25 W 1000 h [϶R/R ʽ 3 %] [S.S. ʽ 1 %] Low temp. operation −55 °C, 2 h [϶R/R ʽ 2 %] [S.S. ʽ 2 %] High temp. exposure 125 °C, 250 h [϶R/R ʽ 3 %] [S.S. ʽ 2 %] Immersion seal 85 °C, 60 s No leaks (No continuous bubbles) Soldering heat [϶R/R ʽ 1 %] Fig. 1 { }ɿReference only Reflow profile for soldering heat evaluationʫ Reflow : two times maximum Peak : 250 Over 230 C Pre Heating Zone 180 C (C) 250 200 150 100 150 C 90 30 s 30 10 s Soldering ZoneHeating time Temperature C Flow : 260 ± 3 °C as the temperature in a pot of molten solder, immer sion from head of ter minal to backside of board, 5 ~ 6 s, two times maximum Reflow : Peak temperature 255 °C (Please refer to the profile below.) Manual solderingɿ350 ± 10 °C, 3 ~ 4 s

1.6 1.6 2.35 242 1.6 1.6 2.35 5.6 1.6 1.6 2.35 1.5 1.5 1.6 1.6 2.35 2.5 0.3 0.8 2.8 1.6 1.6 2.35 3.3 0.3 0.8 ˙ MAXIMUM INPUT RATINGS Nominal resistance values (Ω) Resistance code Maximum input voltage (V) Maximum wiper current (mA) A 10 100 1.00 100 A 20 200 2.00 100 50 500 3.53 70.7 100 101 5.00 50.0 200 201 7.07 35.4 500 501 11.2 22.4 1 k 102 15.8 15.8 2 k 202 22.4 11.2 5 k 502 35.4 7.07 10 k 103 50.0 5.00 20 k 203 70.7 3.54 50 k 503 112 2.24 100 k 104 158 1.58 200 k 204 200 1.00 500 k 504 200 0.40 1 M 105 200 0.20 2 M 205 200 0.10 ˙RECOMMENDED P.C.B. PAD OUTLINE DIMENSIONS (Unit: mm) OST-4EA OST-4EG OST-4EH OST-4EB OST-4ED Note) The zero point is the center of mounting. The products indicated by A mark are manufactured upon receipt of order basis. ST-4 SURFACE MOUNT TRIMMERS

0.6 W × 2.3 L × 0.5 D Resistance code & Production date code Lead-free Identification mark 4.5 2.3 U 1.2 2.35 2 – 0.8 5.2 – 0.5 3 1 4.5 3 – 0.6 2.54

2 Resistance code &

U 3 1 2.3 0.6 W × 2.3 L × 0.5 D Lead-free Identification mark 4.5 2.3 6.2 0.35 min. 0.35 min. 1.2 2.35 2 – 0.8 Resistance code & Production date code U 3 1 0.6 W × 2.3 L × 0.5 D Lead-free Identification mark ST-4 SURFACE MOUNT TRIMMERS ˙OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ± 0.3 (Unit: mm) OST-4EA Top adjustment OST-4EB Top adjustment OST-4EC Top adjustment ˞Note the terminal position. CW rotation 3.1 5.7 + 0.4 4.5 2.35 2 – 0.8 1.2 1.45(2.1)0.95 Resistance code & Production date code U 0.6 W × 2.3 L × 0.5 D Lead-free Identification mark OST-4EG Side adjustment

˞Note the terminal position. ʻSemi-standard products ʼ ʻ Semi-standard products ʼ 4.5 2.3 1.2 2.35 2 – 0.8 7.2 0.50.5 2.8 U 3 1 0.6 W × 2.3 L × 0.5 D Lead-free Identification mark 4.5 2.3 3 – 0.6 2.54 6.35 2.50.5 U 3 1 0.6 W × 2.3 L × 0.5 D Lead-free Identification mark OST-42E B CROSS SLOT DIMENSION 0.6 W × 2.3 L × 0.5 D Cross slot screwdriver 0 bit : 0.8 D 3.1 5.7 + 0.4 4.5 2.35 2 – 0.8 1.2 6.1 0.8 2 Resistance code & Production date code U 3 1 0.6 W × 2.3 L × 0.5 D Lead-free Identification mark CW rotation ST-4 SURFACE MOUNT TRIMMERS ˙OUTLINE DIMENSIONS Unless otherwise specified, tolerance : ± 0.3 (Unit: mm)

<Bulk pack specifications> O6OJUPGCVMLJOBQMBTUJDCBHJTQDTQFSQBDL O#PYJOHPGCVMLJOBQMBTUJDCBHJTQFSGPSNFEXJUI QDTQFSCPY ˙ PACKAGING SPECIFICATIONS .BYJNVNOVNCFSPGDPOTFDVUJWFNJTTJOHQJFDFT -FBEFSMFOHUIBOESFFMEJNFOTJPOBSFTIPXOJOUIFEJB HSBNTCFMPX <Taping packaging specifications> O5BQJOHWFSTJPOJTQBDLBHFEJOQDTQFSSFFM 0SEFSTXJMMCFBDDFQUFEGPSVOJUTPGQDT JF QDT FUD O45&5" &5#BOE&5%WFSTJPOTBSFCPYFEXJUISFFMT QDT 45&5(BOE&5)WFSTJPOTBSFCPYFEXJUIPOFSFFM QDT OEMBOSSED TAPE DIMENSIONS OREEL DIMENSIONS ʢConforms to JIS C 0806-3ʣ ʢIn accordance with EIAJ ET-7200Aʣ (Unit: mm) OST-4ETA/ETB/ETD OST-4ETG/ETH Empty Filled Empty 40 mm min. 20 pitches min. 400 mm min. Direction of feed HeadEnd 180 (ST-4ETA/ETB/ETD) 254 ± 2 (ST-4ETG/ETH) 21±0.8 13±0.2 2±0.5 13 (ETA/ETB) –1.5 13.4±1 (ETG/ETH) 15.4±1 (ETA/ETB/ETD) 17.4±1 (ETG/ETH) 60 (TA/TB) 50 min.(TG/TH) 1.750.15.50.05 Direction of feed 0.30.1 80.1 40.120.05 φ 1.5 φ 1.5 +0.1 2.7 (ST-4ETA/ETB) 3.4 (ST-4ETD) Installation example (ST-4EA) Lead-free Identification mark φ1.5+0.1 20.1 40.1 80.1 0.30.1 1.750.15.50.1 6.4 Installation example (ST-4EG) Direction of feed ST-4 SURFACE MOUNT TRIMMERS