3299P-1-101

Features n 3/8 ˝ Square/ Multiturn / Cermet / Industrial / Sealed n Five popular terminal styles n Standoffs n RoHS compliant* version available n For trimmer applications/processing guidelines, click here Electrical Characteristics Standard Resistance Range .................................10 to 2 megohms (see standard resistance table) Resistance Tolerance............ ±10 % std. (tighter tolerance available) Absolute Minimum Resistance ............................ 1 % or 2 ohms max. (whichever is greater) Contact Resistance Variation ......................... 1.0 % or 3 ohms max. (whichever is greater) Adjustability Voltage................................... ±0.01 % Resistance............................. ±0.05 % Resolution.................................... Infinite Insulation Resistance................ 500 vdc. 1,000 megohms min. Dielectric Strength Sea Level................................ 900 vac 70,000 Feet............................. 350 vac Effective Travel..................25 turns nom. Environmental Characteristics Power Rating (300 volts max.) 70 °C....................................... 0.5 watt 125 °C........................................ 0 watt Temperature Range.... -55 °C to +125 °C Temperature Coefficient.... ±100 ppm/°C Seal Test.......................85 °C Fluorinert† Humidity........MIL-STD-202 Method 103 96 hours (2 % ΔTR, 10 Megohms IR) Vibration........ 20 G (1 % ΔTR; 1 % ΔVR) Shock.......... 100 G (1 % ΔTR; 1 % ΔVR) Load Life .............. 1,000 hours 0.5 watt @ 70 °C (3 % ΔTR; 3 % or 3 ohms, whichever is greater, CRV) Rotational Life........................200 cycles (4 % ΔTR; 3 % or 3 ohms, whichever is greater, CRV) Physical Characteristics Torque.............................. 3.0 oz-in. max. Mechanical Stops.................. Wiper idles Terminals........................Solderable pins Weight...................................... 0.035 oz. Marking............................ Manufacturer’s trademark, resistance code, wiring diagram, date code, manufacturer’s model number and style Wiper................ 50 % (Actual TR) ±10 % Flammability...........................U.L. 94V-0 Standard Packaging......50 pcs. per tube Adjustment Tool...............................H-90 3299 - 3/8 ˝ Square Trimpot® Trimming Potentiometer Standard Resistance Table Product Dimensions 3299P Common Dimensions .38 (.015) 2.54 (.100) 1.09 ± .254 (.043 ± .010) 2.54 (.100) 1.12 ± .254 9.53 (.044 ± .010) (.375) 1.52 (.060) 10.03 (.395) 6.22 ± 1.14 (.245 ± .045) 6.10 +.30/-.25 (.240 +.012/-.010) 3 .51 ADJ. SLOT 2 DIA. TYP. (.020) 2.29 DIA. 1 (.090) .56 WIDE X (.022) 5.23 .64 2.54 DEEP (.206) X (.025) (.100) BOTTOM VIEW 1.91 3299W (.075) 2.54 (.100) Resistance Resistance (Ohms) Code 10 100 20 200 50 500 100 101 200 201 500 501 1,000 102 2,000 202 5,000 502 10,000 103 20,000 203 25,000 253 50,000 503 100,000 104 200,000 204 250,000 254 500,000 504 1,000,000 105 2,000,000 205 Popular distribution resistance values listed in boldface. Special resistances available. 3 How To Order 2 1 BOTTOM VIEW 2.54 (.100) MIN. 3299X 2.54 (.100) 2.54 (.100) 3 BOTTOM VIEW 2.54 (.100) Standard or Modified Product Indicator -1 = Standard Product Resistance Code 1 2.54 (.100) 3299 W - 1 - 103 LF Style 1.91 (.075) 2 3299Y Model 1.91 (.075) 3 Terminations LF = 100 % Tin-plated (RoHS compliant) Blank = 90 % Tin / 10 % Lead-plated (Standard) Consult factory for other available options. 2 1 2.54 (.100) BOTTOM VIEW 3299Z 2.54 (.100) 2.54 (.100) 1.91 (.075) 3 2 1 BOTTOM VIEW 2 CCW WIPER www.P65Warnings.ca.gov REV. 08/19 3 1 WARNING Cancer and Reproductive Harm 2.54 (.100) CW CLOCKWISE MM DIMENSIONS: (INCHES) 0.25 TOLERANCES: ± EXCEPT WHERE NOTED (.010) *RoHS Directive 2015/863, Mar. 31, 2015 and Annex “Trimpot” is a trademark of Bourns, Inc. †“Fluorinert” is a registered trademark of 3M Co. Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. Legal Disclaimer Notice This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and P[ZHɉSPH[LZJVSSLJ[P]LS`¸)V\YUZ¹ Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change ^P[OV\[UV[PJL