Datasheet

ManualsBrandsBourns ManualsPassive ComponentsRotary Potentiometer 50kOhm, 250mW, ±20 %

Features

■ Conductive plastic

■ PC board and bushing mount

■ Plastic or metal bushing and plastic shaft

■ Withstands typical industrial washing

processes

■ Compact package saves board and panel

space

3310 - 9 mm Square Sealed Panel Control

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

Speciﬁ cations are subject to change without notice.

Customers should verify actual device performance in their speciﬁ c applications.

Electrical Characteristics

Standard Resistance Range - Linear .................................................................................................................................................. 1 K ohms to 1 megohm

Total Resistance Tolerance - Linear Tapers .................................................................................................................................................................... ±20 %

Independent Linearity ....................................................................................................................................................................................................... ±5 %

Absolute Minimum Resistance ..................................................................................................................................................................... 2 ohms maximum

Effective Electrical Angle ......................................................................................................................................................................................... 270 ° ±15 °

Contact Resistance Variation ........................................................................................................................................... 1 % or 1 ohm (whichever is greater)

Dielectric Withstanding Voltage (MIL-STD-202 – Method 301)

Sea Level ............................................................................................................................................................................................... 900 VAC minimum

70,000 Feet ........................................................................................................................................................................................... 350 VAC minimum

Insulation Resistance ...................................................................................................................................................................... 1,000 megohms minimum

Power Rating @ 70 °C (Derate to 0 at 125 °C - Voltage Limited By Power Dissipation or 200 VAC, Whichever is Less) ...................................... 0.25 watts

Theoretical Resolution ...................................................................................................................................................................................Essentially inﬁ nite

Environmental Characteristics

Operating Temperature Range .......................................................................................................................................-40 °C to +125 °C (-40 °F to +257 °F)

Storage Temperature Range .........................................................................................................................................-55 °C to +125 °C (-67 °F to +257 °F)

Temperature Coefﬁ cient Over Storage Temperature Range ............................................................................................................................ ±1,000 ppm/°C

Vibration ............................................................................................................................................................................................................................ 30 G

Total Resistance Shift .................................................................................................................................................................................±1 % maximum

Voltage Ratio Shift ......................................................................................................................................................................................±1 % maximum

Shock .............................................................................................................................................................................................................................. 100 G

Load Life ................................................................................................................................................................................................................. 1,000 hours

Rotational Life (No Load) ..................................................................................................................................................................................... 50,000 cycles

Contact Resistance Variation ................................................................................................................................... 3 % or 3 ohms, whichever is greater

Moisture Resistance .................................................................................................................................................. MIL-STD-202, Method 103, Condition B

IP Rating .............................................................................................................................................................................................................................IP67

Mechanical Characteristics

Stop Strength ........................................................................................................................................................................................... 5.65 N-cm (8 oz.-in.)

Mechanical Angle ................................................................................................................................................................................................ 300 ° nominal

Torque

Starting ............................................................................................................................................................................3.53 N-cm (5.0 oz.-in.) maximum

Running ...........................................................................................................................................................................3.53 N-cm (5.0 oz.-in.) maximum

Mounting (Torque on Bushing) ......................................................45 N-cm (4.0 lb.-in.) max [plastic bushing]; 79 N-cm (7.0 lb.-in.) max [metal bushing]

Weight (Single Section).............................................................................................................................................................................................. 4.5 grams

(Each Additional Section) .................................................................................................................................................................................... 2.5 grams

Terminals .......................................................................................................................................................................................................... Solderable pins

Soldering Condition

Manual Soldering ................................................ 96.5Sn/3.0Ag/0.5Cu solid wire or no-clean rosin cored wire; 370 °C (700 °F) max. for 3 seconds

Wave Soldering .........................................................................96.5Sn/3.0Ag/0.5Cu solder with no-clean ﬂ ux; 260 °C (500 °F) max. for 5 seconds

Wash Processes ....................................................... For recommended wash processes, please refer to http://www.bourns.com/pdfs/sldclen.pdf

Marking ................................................................. Manufacturer’s trademark, model number, product code, terminal style, resistance code and date code

Ganging ..........................................................................................................................................................................................................2 cups maximum

Hardware ...........................................One lockwasher and one mounting nut is shipped with each potentiometer, except where noted in the part number.

Flammability ........................................................................................................................................................................................... Conforms to UL94V-0

Epoxy .................................................................................................................................................................................................... Conforms to UL 94V-1

Switch Characteristics

Switch Life ................................................................................................................................................................................................................10K cycles

Contact Resistance .............................................................................................................................................................................................. 2 ohms max.

Dielectric Strength .......................................................................................................................................................................................................350 VDC

Detent Torque ...................................................................................................................................................................................................... 0.5 oz-in min.

Power Rating (Resistive Load) .....................................................................................................................................................................100 mA @ 16 VDC

*RoHS COMPLIANT

Summary of content (5 pages)

PAGE 1
*R oH S CO M PL IA NT Features ■ Conductive plastic ■ PC board and bushing mount ■ Plastic or metal bushing and plastic shaft ■ Withstands typical industrial washing processes ■ Compact package saves board and panel space 3310 - 9 mm Square Sealed Panel Control Electrical Characteristics Standard Resistance Range - Linear ..................................................................................................................................................
PAGE 2
Additional Features ■ Audio taper versions available as special order ■ RoHS compliant* 3310 - 9 mm Square Sealed Panel Control Standard Resistance Table Resistance (Ohms) 1,000 2,000 5,000 10,000 20,000 50,000 100,000 200,000 500,000 1,000,000 Resistance Code 102 202 502 103 203 503 104 204 504 105 Popular values listed in boldface. Consult factory for special resistances.
PAGE 3
310 - 9 mm Square Sealed Panel Control Product Dimensions 3310C-001 COMMON DIMENSIONS 3310-001 3310Y-001 9.53 ± .25 (.375 ± .010) 2 Plastic Bushing Slotted Shaft 9.53 ± .25 (.375 ± .010) 9.53 ± .25 1 (.375 ± .010) 3 9.53 ± .25 (.375 ± .010) .51 ± .05 DIA. (.020 ± .002) SOLDER PLATED COPPER PINS 3 3 2 5.97 ± .89 (.235 ± .035) 1 2.54 ± .25 (.100 ± .010) 3.91 ± .38 (.154 ± .015) 1 2 3310P-001 4.83 ± .25 (.190 ± .010) 4.75 MIN. FULL (.187) THREAD 5.18 ± .38 (.204 ± .015) 6.35 ± .08 (.
PAGE 4
3310 - 9 mm Square Sealed Panel Control Product Dimensions COMMON DIMENSIONS 3310P-025 * 3310-002 Bushingless Metal Bushing 7.62 ± .20 DIA. (.300 ± .008) 1/4-32 UNEF-2A THREADED METAL BUSHING MOUNTING SURFACE 6.35 ± .08 (.250 ± .003) MOUNTING DIA. .38 (.015) MIN. STANDOFF 4.83 ± .25 (.190 ± .009) .76 (.030) 6.35 (.250) 6.35 ± .64 (.250 ± .025) R 12.70 ± .64 (.500 ± .025) .76 ± .05 X .97 HIGH (.030 ± .002 X .038) ANTI-ROTATION BOSS 6.35 ± .20 DIA. (.250 ± .008) .38 (.015) MIN. STANDOFF .
PAGE 5
3310 - 9 mm Square Sealed Panel Control Product Dimensions COMMON DIMENSIONS 3310H-003 Pot/Switch Dual Cup Plastic Bushing 3310H-025* 3310H-002 Pot/Pot Dual Cup Bushingless Pot/Pot Dual Cup Metal Bushing 9.53 ± .25 (.375 ± .010) 3 2 3 2 1 6 5 4 PRIMARY ELEMENT 3 2 1 6 5 4 PRIMARY ELEMENT 1 PRIMARY ELEMENT 9.75 ± .38 (.383 ± .015) .38 (.015) MIN. STANDOFF .48 (.019) 4 PLCS. B C SECONDARY ELEMENT SECONDARY ELEMENT A SWITCH 2.54 ± .25 (0.10 ± .010) ANTI-ROTATION LUG 2.54 ± .25 (0.