■ AV DI TH AIL ST RO AB RI U LE BU GH TI ON Features ■ ■ ■ ■ Surface Mount / Single-Turn Cermet / Process Sealed Elastomer seal allows multiple adjustments (5 rotations) Compatible with all surface mount manufacturing processes Recommended for reflow processing only ■ ■ ■ Cross-slot rotor design suitable for automatic adjustment equipment Supplied in 12mm embossed tape, compatible with automatic pick-and-place assembly equipment Patent #5,095,298 Plastic rotor minimizes RF & ESD concerns 3374 - 4mm Square Trimming Potentiometer Electrical Characteristics Standard Resistance Range ..................................10 to 2 megohms (see standard resistance table) Resistance Tolerance .............±20% std. End Resistance........1% or 2 ohms max. (whichever is greater) Contact Resistance Variation ..............................3% or 3 ohms max. (whichever is greater) Resolution.....................................Infinite Adjustment Angle ...................240º nom. Maximum Voltage ...........................200V Environmental Characteristics Power Rating 70°C.......................................0.25 watt 125°C..........................................0 watt Operating Temperature Range ...................................-55°C to +125°C Temperature Coefficient <500K ohms.....................±100ppm/°C ≥500K ohms.....................±150ppm/°C Seal ......................................5 turns min. Humidity ........MIL-STD 202 Method 103 Vibration ........20G; TRS ±1%, VRS ±1% Shock ..........100G; TRS ±1%, VRS ±1% Load Life (@70ºC Rated Power, 1000 hours) ...........................TRS ±3% Rotational Life ......100 cycles; TRS ±3% Thermal Shock ...........................5 cycles TRS ±2%, VRS ±1% Physical Characteristics Torque.............................18 - 180gm/cm Mechanical Angle .................Continuous Marking ..........Manufacturer’s trademark and part marking code Wiper ..........Positioned at 50% nominal Standard Packaging ......750 pcs./7” reel Adjustment Tool ..............................H-90 3374X/W Packaging Specifications ADJ. SLOT .48 WIDE (.019) .38 X DEEP (.015) 2.54 X LONG (.100) 2 PLCS. 4.01 (.158) X Orientation Shown 3 1 1.78 (.070) 3.56 (.140) 2.00 ± .05 (.079 ± .002) 4.29 ± .20 (.169 ± .008) 1.93 (.076) 2 1.75 ± .10 (.069 ± .004) TAPE 0.74 TYP. 2 PLCS. (.029) 1.97 (.078) 177.8 ± 2.03 DIA. (7.000 ± .080) EQUAL SPACED 3 PLCS. 1.73 MIN. (.068) 4.90 MAX. (.193) 13.0 ± .50 (.512 ± .020) DIA. 1.98 (.078) .99 (.039) Resistance Code Embossed Tape 750 pcs./7” reel (standard) Consult factory for other available options. CCW Standard Resistance Table WIPER 3 1 CW CLOCKWISE TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED DIMENSIONS ARE: 14.0 ± 1.5 (.551 ± .59) 6.78 (.267) Model 2 21.01 ± .76 (.827 ± .030) DIA. Meets EIA 481 .99 (.039) 3.99 (.157) 59.2 (2.331) REF. REEL 3.17 (.125) Style 2.0 (.079) REF. .76 (030) 3.96 (.156) 3374 X - 1 - 502 E 5.00 ± .20 (.197 ± .008) 12.00 ± .30 (.472 ± .012) 0.61 TYP. (.024) 2 PLCS. How To Order Standard or Modified Product Indicator -1 = Standard Product 8.00 ± .10 (.315 ± .004) 3.98 ± .10 (.157 ± .004) 1.40 (.055) Orientation of Parts in Tape: Style W - Terminals Toward Sprocket Holes 2.69 ± .20 MAX. (.106 ± .008) .30 + .025/- .076 (.012 + .001/- .003) METRIC (INCHES) Resistance (Ohms) 10 20 50 100 200 500 1,000 2,000 5,000 10,000 20,000 50,000 100,000 200,000 500,000 1,000,000 2,000,000 Part Marking Code A1 21 51 A2 22 52 A3 23 53 A4 24 54 A5 25 55 A6 26 Resistance Code 100 200 500 101 201 501 102 202 502 103 203 503 104 204 504 105 205 Popular values listed in boldface. Special resistances available. SHADED AREAS TYPICALLY NOT STOCKED BY DISTRIBUTORS AND NOT RECOMMENDED FOR NEW DESIGNS. Specifications are subject to change without notice.