SURFACE MOUNT CERMET TRIMMERS (14 TURNS) ST-5 INTERNAL STRUCTURE RoHS compliant 1 0 2 9 3 8 4 7 6 5 Part name Material Flammability FEATURES Housing Polyphenylenesulphide UL94V-0 1 O Shaft Brass, Nickel-plated 2 O O Terminal pin Copper, Tin-plated 3 O Base element Ceramic 4 O Electrode Ag-Pd cermet 5 Resistive element RuO2 cermet 6 Wiper Multi metal alloy 7 Adhesive Epoxy 8 Rubber cushion Silicone rubber 9 Rotor gear Polyamide UL94HB 0 PART NUMBER DESIGNATION S T - 5 E T W 5 0 0 ( 5 0 1 ) Series name Resistance code Terminal pin Resistance value E Sn (Lead-free) Product shape (Shape of terminal) W Gull wing (Top adjustment) Form of packaging X Gull wing (Side adjustment) T Taping (Reel) P Gull wing (Side adjustment) M Magazine (Stick) R Gull wing (Side adjustment) Blank Bulk in plastic bag Please refer to the LIST OF PART NUMBERS when placing orders.ST-5 SURFACE MOUNT TRIMMERS LIST OF PART NUMBERS Nominal resistance values Form of packaging A A 10 20 50 100 200 500 1 k 2 k 5 k Adjustment position Shape of terminal Taping (reel) Magazine (stick) Plastic bag 10 k 20 k 50 k 100 k 200 k 500 k 1 M 2 M Fig. 1 Top adjustment W (Gull wing) ST-5ETW ST-5EMW ST-5EW The above part numbers are all available with the respective combination of <Nominal resistance values> (Fig. 1). X (Gull wing) ST-5ETX ST-5EMX ST-5EX Verify the above part numbers when placing orders. Side Taping and magazine specifications are not sold separately and must be purchased in reel or stick units. P (Gull wing) ST-5ETP ST-5EMP ST-5EP adjustment ST-5ETR ST-5EMR ST-5ER R (Gull wing) Pieces in package 500 pcs./reel 50 pcs./stick 50 pcs./pack The products indicated by A mark are manufactured upon receipt of order basis. MECHANICAL CHARACTERISTICS Mechanical turn 14 turns ELECTRICAL CHARACTERISTICS Operating torque 20 mNm 204 gfcm maximum Nominal resistance range 10 ~ 2 M Mechanical stop Clutch action 200 cycles 10 % Resistance tolerance Rotational life 10 ~ 200 R/R (0.5 +3 %) 500 ~ 2 M R/R (0.5 +2 %) Power ratings 0.25 W (85 C) 0 W (120 C) Thrust to shaft 5 N 0.51 kgf minimum Resistance law Linear law Solderability 245 3 C, 2 ~ 3 s Maximum input voltage DC200 V or power rating, whichever is smaller Shear (Adhesion) 5 N 0.51 kgf 10 s Maximum wiper current 100 mA or power rating, whichever is smaller Substrate bending Width 90 mm, bend 3 mm, 5 s, 1 time Effective electrical turn 11 turns Pull-off strength 5 N 0.51 kgf 10 s End resistance 1 % or 2 , whichever is greater Reference only C.R.V. 1 % or 3 , whichever is greater 55 ~ 120 C Operating temp. range ENVIRONMENTAL CHARACTERISTICS -6 10 ~ 50 : 250 10 /C maximum Temp. coefficient -6 Test item Test conditions Specifications 100 ~ 2 M : 100 10 /C maximum R/R 1 % Insulation resistance 1000 M minimum (DC500 V) 65 ~ 125 C (0.5 h), 5 cycles Thermal shock S.S. 1 % 10 ~ 65 C (80 ~ 98 %), Dielectric strength AC600 V, 60 s Humidity R/R 1 % 10 cycles, 240 h 2 981 m/s , 6 ms Net weight Approx. 0.35 g Shock 6 directions for 3 times each R/R 1 % (Amplitude) 1.52 mm or S.S. 1 % 2 Vibration (Acceleration) 196 m/s , 10 ~ 2000 Hz, 3 directions, 12 times each R/R 2 % Load life 85 C, 0.25 W, 1000 h Reflow profile for soldering heat evaluation S.S. 1 % R/R 2 % Low temp. operation 55 C, 2 h S.S. 2 % (C) +5 0 Peak : 250 C R/R 2 % 250 High temp. exposure 120 C, 250 h S.S. 2 % Over 230 C Immersion seal 85 C, 60 s No leaks (No continuous bubbles) 200 Pre Heating Zone 180 C Flow : 260 3 C as the temperature in a pot of molten solder, immer sion 150 150 C from head of ter minal to backside 90 30 s of board, 5 ~ 6 s, two times 100 maximum Soldering heat R/R 1 % 30 10 s Reflow : Peak temperature 255 C (Please refer to the profile below.) 50 Soldering Zone Heating time Manual soldering 350 10 C, 3 ~ 4 s Reflow : two times maximum R/R Change in total resistance S.S. Setting stability Temperature