Features Model 3386-HV2 & 3386-HV3 are obsolete and not recommended for new designs. ■ 3/8 ” Square / Single-Turn / Cermet Industrial / Sealed High Voltage Focus Control ■ Designed for electrostatic focus control applications on monochrome or color CRTs ■ Rated at 1 KV D.C. and 600 VDC input voltage ■ High stability cermet element ■ Available with optional red knob ■ For trimmer applications/processing guidelines, click here 3386-HV2/3386-HV3 - 3/8 ” Trimpot® Trimming Potentiometer Electrical Characteristics Standard Resistance Range ............................2.5 and 5 megohms Resistance Tolerance .................. ±20 % Contact Resistance Variation ............................................ 2 % max. Adjustability Voltage Divider ...................... ±0.05 % Rheostat ................................ ±0.15 % Resolution ................................... Infinite Insulation Resistance @ 1 KV D.C. .......................... 1,000 megohms min. Dielectric Strength (5,000 foot altitude) ................................. 1.5 KV A.C. min. Adjustment Angle ................. 280 ° nom. Product Dimensions 3386N Common Dimensions 3.81 (.150) 3.81 (.150) 4.83 (.190) 3.81 (.150) ANODE VOLTAGE 10-18 KV. TYP. 5.97 ± .89 (.235 ± .035) 2 3 Typical Focus Control Circuits 1 5.08 (.200) † .38 MIN. (.015) 3.05 .51 ± .05 DIA. (.120) (.020 ± .002) E T E L O S B O Environmental Characteristics HV2 Input Voltage 85 °C ........................... (1K VDC max.) 125 °C ....................................... 0 watt HV3 Input Voltage 85 °C ..........................(600 VDC max.) 125 °C ....................................... 0 watt Temperature Range ... -55 °C to +125 °C Temperature Coefficient ... ±400 ppm/°C Humidity .......MIL-STD-202 Method 103 240 Hours (100 megohms min. IR) Load Life HV2 .................... 1,000 hours 1 KVDC 60 °C, 90 % R.H. (3 % max. ΔTR) HV3 .................. 1,000 hours 600 VDC 60 °C, 90 % R.H. (3 % max. ΔTR) Voltage Breakdown (5,000 foot altitude) .......... 1.5 KV min. Seal Test ......................85 °C Fluorinert† Vibration .............. No discontinuity 30 G Shock ................ No discontinuity 100 G Rotational Life ...............200 cycles min. Physical Characteristics Mechanical Angle ................. 310 ° nom. Torque............................. 5.0 oz-in. max. Stop Strength ............... 15.0 oz -in. min. Terminals .......................Solderable pins Weight ....................................... 0.04 oz. Marking........................... Manufacturer’s trademark, resistance code, wiring diagram, date code, manufacturer’s model number and style Flammability ..........................U.L. 94V-0 Standard Packaging .....50 pcs. per tube Adjustment Tool..............................H-90 G4 FOCUS 0-600V ADJ. RANGE TYP. ADJ. SLOT .76 WIDE (.030) X 2.54 DEEP (.100) X 3.81 LONG (.150) 9.53 (.375) 3386N-HV3-255 or 3386U-HV3-255 MONOCHROME † VALUES DETERMINED BY CIRCUIT VOLTAGES 9.53 (.375) ANODE VOLTAGE 21-27 KV. TYP. 3386U 5.08 MIN. (.200) 5.59 (.220) † 5.08 (.200) .51 ± .05 (.020 ± .002) DIA. PINS 3.81 (.150) 3 G4 FOCUS 6-7 KV. TYP. † 2 1 .38 MIN. (.015) 3.81 (.150) How To Order 0-1 KV. FOCUS RANGE 3386N-HV2-505 or 3386U-HV2-505 3386 N - HV2 - 505 T Model COLOR Style High Voltage Construction Indicator HV2 = 1000 VDC HV3 = 600 VDC Resistance Code -255 = 2.5 megohms -505 = 5 megohms Optional Suffix Letter T = Red Knob 2 CCW WIPER 3 1 CW CLOCKWISE DIMENSIONS: TOLERANCES: ± 0.25 (.010) MM (INCHES) EXCEPT WHERE NOTED REV. 10/11 “Trimpot” is a registered trademark of Bourns, Inc. †“Fluorinert” is a registered trademark of 3M Co. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.