3549H-2AB-503/103A datasheet, PDF

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3549H-2AB-503/103A: DescriptionPotentiometer, 2W, 50000ohm, 10% +/-Tol, -100,100ppm/Cel,; File Size392KB，4 Pages; ManufacturerBourns; Websitehttp://www.bourns.com; Environmental Compliance

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3549H-2AB-503/103A Overview

Potentiometer, 2W, 50000ohm, 10% +/-Tol, -100,100ppm/Cel,

3549H-2AB-503/103A Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Objectid	770283390
Reach Compliance Code	not_compliant
ECCN code	EAR99
structure	Round
JESD-609 code	e4
Maximum operating temperature	125 °C
Minimum operating temperature	-55 °C
Package diameter	22.479 mm
Package length	40.259 mm
Package shape	CYLINDRICAL PACKAGE
Package form	Panel Mount
method of packing	Tray
Rated power dissipation(P)	2 W
resistance	50000 Ω
Resistor type	POTENTIOMETER
rotation angle	3600 deg
series	3549
Temperature Coefficient	100 ppm/°C
Terminal surface	Gold (Au) - with Nickel (Ni) barrier
Tolerance	10%

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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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