Series 115 ® Commercial 3/4" (19.05mm) diameter, 2 watt variable resistor • Fully enclosed construction • Four mounting styles • Long rotational life • Optional grounded or insulated rotor construction • Incorporated fixed resistor available • Available with nylon shaft • Interchangeable mounting with CTS series 110 preset potentiometers Electrical and Mechanical Specifications Resistance Range 1 ohm through 20K ohms (linear taper) Resistance Tolerance Available: ±5%, ±10%, ±20% Power Rating, Watts Standard: 2 watts @ 55°C, derated to no load @ 105°C linear taper, control mounted on metal panel 4" x 4" x .050" (101.6mm x 101.6mm x 1.27mm) Voltage Rating Terminals to case (insulated types only) High pot test, one minute — 900 VAC Operating maximum — 500 VDC Across end terminals Determined by resistance value and wattage rating Resistance Taper Linear (±3% independent linearity, standard) Taps None Incorporated Fixed Resistor A fixed resistor can be incorporated in the Series 115 at the end of CW or CCW rotation to a minimum of 15% of the total resistance value. The rotation is shortened by an amount proportional to the ratio of the fixed resistor to the total resistance value. Angle of Rotation 270° ± 5° Adjustment of Resistance Standard: Cross slot provided in rotor for screwdriver adjustment. Special: Molded nylon, screwdriver-slotted shafts which are integral with rotor are available in many lengths in increments of 1/8" (3.2mm) up to a maximum of 2" (50.8mm). Available Mounting Types Printed circuit mounted: Twist tab mounted: Ear mounted: Rivet ear mounted: Type 115 Type P115 Type 116 Type 117 Terminal Information Grounded Construction — The grounded construction is supplied without a center terminal and the contactor is connected to the case. This construction can be furnished with one end terminal at either end of the resistance element or with terminals at both ends of the element. Insulated Construction — The contactor is insulated from the base and connected to the center terminal on the insulated construction. This construction can be supplied with the center terminal and one end terminal at either end of the resistance element or with the center terminal and terminals at both ends of the resistance element. Rotational Torque Turning Torque: 1/2 to 10 inch-ounces (36 – 720 g-cm) Stop Strength: 4 inch-pounds (4.6 Kg-cm) Technical Data Sheet 1448C Technical Data Sheet 1115 CTS CORPORATION / MANUFACTURER OF RELIABLE ELECTRONIC COMPONENTS Type 115, P.C. Mounted DIMENSION: MM INCH Type P115, Twist Tab Mounted DIMENSION: MM INCH Type 116, Ear Mounted DIMENSION: MM INCH Type 117, Rivet Ear Mounted DIMENSION: MM INCH Ordering Information 115 SERIES MOUNTING DESIGNATION 115 P115 116 117 – PC MOUNT – TWIST TAB – EAR – RIVET EAR TERMINAL STYLE J – INSULATED CONSTRUCTION G – GROUNDED CONSTRUCTION G P 3 00 MOUNTING STYLE SHAFT LENGTH BUSHING: T – TWIST TAB P – PC E – EAR R – RIVET EAR 00 – NO SHAFT LOCATING LUG SHAFT TRIM 3 – NONE C – CROSS C – SLOT C 103 RESISTANCE CODE EXAMPLES CODE 100 500 101 501 102 252 502 103 203 RESISTANCE 10 OHMS 50 100 500 1K 2.5K 5K 10K 20K B 1 TAPER 1 – LINEAR RESIST TOLERANCE A – ±10% B – ±20% D – ±5% Order From: CTS CORPORATION, ELECTROCOMPONENTS / 1601 Mishawaka Street / Elkhart, Indiana 46514 North America Toll Free (888) 287-4690 / (219) 296-6700 / FAX: (219) 293-1240 http://www.ctscorp.com CTS COMPONENTS TAIWAN, LTD. / 7, Central 6th Road (Chung Liu Road) / P.O. Box 26-20 Kaohsiung Export Processing Zone / Kaohsiung, Taiwan, Rep. of China (07) 8216145 / FAX: (07) 8417642.8110040 2.5M-6-99I