51UBA-T25-B16L datasheet, PDF - EEWORLD Datasheet

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51UBA-T25-B16L: DescriptionPotentiometer, Conductive Plastic, 0.5W, 20000ohm, 20% +/-Tol, -1000,1000ppm/Cel, 4565,; CategoryPassive components The resistor; File Size249KB，3 Pages; ManufacturerBourns; Websitehttp://www.bourns.com; Environmental Compliance

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51UBA-T25-B16L Overview

Potentiometer, Conductive Plastic, 0.5W, 20000ohm, 20% +/-Tol, -1000,1000ppm/Cel, 4565,

51UBA-T25-B16L Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Objectid	770718487
Reach Compliance Code	not_compliant
structure	Square
JESD-609 code	e3
Lead length	6.6 mm
Maximum operating temperature	125 °C
Minimum operating temperature	1 °C
Package height	13.25 mm
Package length	11.4 mm
Package form	PCB Mount
Package width	16.51 mm
Rated power dissipation(P)	0.5 W
resistance	20000 Ω
Resistor type	POTENTIOMETER
rotation angle	270 deg
series	51
size code	4565
technology	CONDUCTIVE PLASTIC
Temperature Coefficient	1000 ppm/°C
Terminal surface	Matte Tin (Sn)
Tolerance	20%

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Features

■

RoHS compliant*

■

Conductive plastic or cermet

■

Linear and audio tapers

■

PC board and bushing mount

■

Gangable

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Metal bushing and shaft

■

Sealed for board washing

51/53 - Sealed 1/2 ” (12.5 mm) Square Control

Electrical Characteristics

Conductive Plastic

Cermet

Standard Resistance Range

Linear ...................................................................................................1 K ohms to 1 megohm ......................... 150 ohms to 1 megohm

Audio ....................................................................................................1 K ohms to 1 megohm ......................... 1 K ohms to 1 megohm

Total Resistance Tolerance

Linear Tapers ........................................................................................±10 % or ±20 % .................................... ±10 % or ±5 %

Audio Tapers ........................................................................................±10 % or ±20 % .................................... ±10 %

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

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

Effective Electrical Angle ............................................................................270 ° ±5 ° .............................................. 270 ° ±5 °

Contact Resistance Variation .....................................................................2 % ........................................................ 2 %

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

Sea Level ..............................................................................................1,500 VAC minimum .............................. 1,500 VAC minimum

70,000 ..................................................................................................500 VAC minimum ................................. 500 VAC minimum

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

Power Rating At 70 °C (Derate To 0 At 125 °C)

(Voltage Limited By Power Dissipation or 350 VAC, Whichever Is Less)

Linear Tapers ........................................................................................0.5 watt.................................................. 1.0 watt

Audio Tapers ........................................................................................0.25 watt................................................ 0.5 watt

Theoretical Resolution ................................................................................Essentially inﬁnite .................................. Essentially inﬁnite

Environmental Characteristics

Operating Temperature Range ...................................................................+1 °C to +125 °C ................................... +1 °C to +125 °C

Storage Temperature Range ......................................................................-55 °C to +125 °C.................................. -55 °C to +125 °C

Temperature Coefﬁcient Over Storage Temperature Range ......................±1,000 ppm/°C ...................................... ±150 ppm/°C

Vibration (Single Section) ...........................................................................15 G ....................................................... 15 G

Total Resistance Shift ...........................................................................±2 % maximum ..................................... ±2 % maximum

Voltage Ratio Shift ................................................................................±5 % maximum ..................................... ±5 % maximum

Shock (Single Section) ...............................................................................30 G ....................................................... 30 G

Total Resistance Shift ...........................................................................+2 % maximum ..................................... ±2 % maximum

Voltage Ratio Shift ................................................................................±5 % maximum ..................................... ±5 % maximum

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

Total Resistance Shift ...........................................................................±10 % TRS maximum ........................... ±5 % TRS maximum

Rotational Life (No Load) ............................................................................50,000 cycles ........................................ 25,000 cycles

Total Resistance Shift ...........................................................................±10 % TRS maximum ........................... ±10 % TRS maximum

Contact Resistance Variation @ 25,000 Cycles ...................................±2 % ...................................................... ±4 %

Moisture Resistance (MIL-STD-202, Method 103, Condition B)

Total Resistance Shift ...........................................................................±10 % TRS ............................................ ±5 % TRS

IP Rating .....................................................................................................IP 64 ...................................................... IP 64

Mechanical Characteristics

Stop Strength ............................................................................................................................................................................................... 56 N-cm (5 lb.-in.)

Mechanical Angle ...................................................................................................................................................................................................... 290 ° ±5 °

Torque

Starting (Dual Sections).............................................................................................................................................. +0.35 N-cm (+0.5 oz.-in.) maximum

Running (Single Section) ............................................................................................................................................. 0.15 to 1.4 N-cm (0.2 to 2.0 oz.-in.)

Running (Dual Section) ................................................................................................................................................ 0.35 to 1.8 N-cm (0.5 to 2.5 oz.-in.)

Mounting (Torque on Bushing) .......................................................................................................................... 1.7 to 2.0 N-m (15 to 18 lb.-in.) maximum

Weight (Single Section).............................................................................................................................................................................................. 5.5 grams

(Additional Section) ............................................................................................................................................................................................. 3.0 grams

Terminals ................................................................................................................................................................................................... PC pin or solder lug

Soldering Condition .................................................................. Recommended hand soldering using Sn95/Ag5 no clean solder, 0.025 ” wire diameter.

Maximum temperature 399 °C (750 °F) for 3 seconds. No wash process to be used with no clean ﬂux.

Part can be wave soldered at 260 °C (500 °F) for 5 seconds, no wash process with no clean ﬂux.

Marking.................................................................................................................. Manufacturer’s trademark, part number, resistance value and date code.

Ganging (Multiple Section Potentiometer) ............................................................................................................................................ 2 sections maximum**

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

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

** Additional sections available on special request with higher minimum order quantities.

*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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