3549S-2AA-101/101B datasheet, PDF

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3549S-2AA-101/101B: DescriptionPotentiometer, Wire Wound, 2W, 100ohm, 3% +/-Tol, -50,50ppm/Cel, 10 Turn(s), ROHS COMPLIANT; CategoryPassive components The resistor; File Size404KB，4 Pages; ManufacturerBourns; Websitehttp://www.bourns.com; Environmental Compliance

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3549S-2AA-101/101B Overview

Potentiometer, Wire Wound, 2W, 100ohm, 3% +/-Tol, -50,50ppm/Cel, 10 Turn(s), ROHS COMPLIANT

3549S-2AA-101/101B Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Bourns
package instruction	ROHS COMPLIANT
Reach Compliance Code	_compli
ECCN code	EAR99
Actuator direction	HORIZONTAL
Actuator type	SHAFT
structure	Round
gang number	2
JESD-609 code	e4
Manufacturer's serial number	3549
Installation features	PANEL MOUNT
Number of terminals	6
number of turns	10
Maximum operating temperature	125 °C
Minimum operating temperature	-40 °C
Package diameter	22.479 mm
Package length	40.259 mm
Package shape	CIRCULAR PACKAGE
Package form	Panel Mou
method of packing	TRAY
Rated power dissipation(P)	2 W
Rated temperature	70 °C
resistance	100 Ω
resistance law	LINEAR
Resistor type	POTENTIOMETER
rotation angle	3600 deg
series	3549
surface mount	NO
technology	WIRE WOUND
Temperature Coefficient	-50,50 ppm/°C
Terminal surface	Gold (Au)
Terminal shape	LUG
Tolerance	3%

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Features

■

Wirewound and Hybritron

elements

■

High rotational life

■

Optional 0.1 % linearity

■

Optional A/R lug

■

RoHS compliant*

■

Suitable for use under side load

■

Designed for HMI and MMI applications

■

Dual gang option

■

Servo mount option

3549 - 10-Turn Precision Potentiometer

Electrical Characteristics

Wirewound Element

Hybritron

Element

Standard Resistance Range..................................................................100 to 100K ohms ..................................................1K to 100K ohms

Total Resistance Tolerance....................................................................±3 % .......................................................................±10 %

Independent Linearity ............................................................................±0.2 % ....................................................................±0.2 %

Independent Linearity (Maximum Practical) ..........................................±0.1 % ....................................................................±0.1 %

Effective Electrical Angle .......................................................................3600 ° +10 °, -0 °....................................................3600 ° +10 °, -0 °

Absolute Minimum Resistance/End Voltage ..........................................1 ohm or 0.1 % maximum ......................................0.2 % maximum

(whichever is greater)

Noise/Output Smoothness ....................................................................100 ohms maximum ...............................................0.10 % maximum

Max. Wiper Current @ 5K ohms ...........................................................20 mA ..................................................................... 10 mA

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

Sea Level ...........................................................................................1,000 VAC minimum .............................................. 1,000 VAC minimum

Insulation Resistance (500 VDC) ..........................................................1,000 megohms minimum ...................................... 1,000 megohms minimum

Resolution..............................................................................................See How to Order chart ........................................ Essentially inﬁnite

Power Rating (Voltage Limited By Power Dissipation)

+70 °C................................................................................................2 watts .................................................................... 2 watts

+125 °C..............................................................................................0 watt...................................................................... 0 watt

Environmental Characteristics

Operating Temperature Range

Dynamic .............................................................................................-40 °C to +125 °C ................................................... -40 °C to +125 °C

Static ..................................................................................................-55 °C to +125 °C ................................................... -55 °C to +125 °C

Temperature Coefﬁcient (Over Static Temperature Range) ..................±50 ppm/°C ............................................................ ±100 ppm/°C

Temperature Cycling (5 Cycles Over Static Temperature Range) .........±2 % TR shift max. ................................................. ±4 % TR shift max.

Vibration (15 Gs, 10 Hz to 2 kHz)

Wiper Bounce ....................................................................................0.1 ms max............................................................. 0.1 ms max.

Shock (100 Gs, 6 ms sawtooth)

Wiper Bounce ....................................................................................0.1 ms max............................................................. 0.1 ms max.

Load Life (1,000 hours @ 70 °C)...........................................................±2 % TR shift .......................................................... ±5 % TR shift max.

Rotational Life

No Load .............................................................................................2,000,000 shaft revolutions ................................... 5,000,000 shaft revolutions

Powered (MIL-PRF-12934)................................................................2,000,000 shaft revolutions ................................... 5,000,000 shaft revolutions

Moisture Resistance (Mil-Std-202, Method 103) ...................................±2 % TR shift max. ................................................. ±5 % TR shift max.

IP Rating ................................................................................................IP 50 ....................................................................... IP 50

Mechanical Characteristics

Mechanical Angle ...........................................................................................................................................................................................3600 ° +10 °, -0 °

Backlash .................................................................................................................................................................................................................... 1.0 ° max.

Stop Strength.......................................................................................................................................................................................53 N-cm (75 oz-in.) min.

Torque

Starting ........................................................................................................................................................................................0.5 N-cm (0.7 oz.-in.) max.

Running .......................................................................................................................................................................................0.5 N-cm (0.7 oz.-in.) max.

Clutch................................................................................................................................................................................1.0 to 4.2 N-cm (1.5 to 6.0 oz.-in.)

Mounting .......................................................................................................................................................................... 170-200 N-cm (15-18 in.-lb.) max.

Shaft Runout T.I.R. ..................................................................................................................................................................................... 0.08 mm (0.003 in.)

Lateral Runout T.I.R.................................................................................................................................................................................... 0.13 mm (0.005 in.)

Shaft End Play T.I.R. .................................................................................................................................................................................. 0.15 mm (0.006 in.)

Shaft Radial Play T.I.R................................................................................................................................................................................ 0.08 mm (0.003 in.)

Pilot Diameter Runout T.I.R. ....................................................................................................................................................................... 0.08 mm (0.003 in.)

Weight

Single ...................................................................................................................................................................................................... 20 gm (0.7 oz.) typ.

Dual ....................................................................................................................................................................................................... 36 gm (1.27 oz) typ.

Shaft Side Load (Max. Allowable)

Nickel Plated Brass Shaft w/Brass Bushing ................................................................................................................................................. 50 gmf (1.7 ozf)

Stainless Steel Shaft w/Bronze Bushing .................................................................................................................................................... 250 gmf (8.8 ozf)

Terminals .............................................................................................................................................................................................. Gold-plated solder lugs

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 ﬂux, 260 °C (500 °F) max. for 5 seconds

Wash processes .......................................................................................................................................................................................Not recommended

Mounting Hardware ............................................................................................. One lockwasher and one mounting nut is shipped with each potentiometer

Recommended Panel Thickness (Bushing Mount) ..................................................................................................................2.46-3.81 mm (0.097-0.150 in.)

Marking ...........................................................................................................................Manufacturer’s symbol, model number, product code and date code

Standard Packaging ........................................................................................................................................................................... Plastic trays (5 pcs./tray)

At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.

For other options, please consult factory.

*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.

Speciﬁcations are subject to change without notice.

Customers should verify actual device performance in their speciﬁc applications.

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