51CAD-E28-D18L datasheet, PDF - EEWORLD Datasheet

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51CAD-E28-D18L: DescriptionPotentiometer, Conductive Plastic, 0.25W, 50000ohm, 20% +/-Tol, -1000,1000ppm/Cel, 4935,; CategoryPassive components The resistor; File Size830KB，5 Pages; ManufacturerBourns; Websitehttp://www.bourns.com; Environmental Compliance

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51CAD-E28-D18L Overview

Potentiometer, Conductive Plastic, 0.25W, 50000ohm, 20% +/-Tol, -1000,1000ppm/Cel, 4935,

51CAD-E28-D18L Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Objectid	770679508
Reach Compliance Code	not_compliant
Country Of Origin	Mexico
YTEOL	7.6
Actuator direction	HORIZONTAL
Actuator type	SHAFT
structure	Rectangular
gang number	1
JESD-609 code	e3
Installation features	PCB MOUNT
Number of terminals	3
number of turns	1
Maximum operating temperature	125 °C
Minimum operating temperature	1 °C
Package height	13.25 mm
Package length	12.5 mm
Package form	PCB Mount
Package width	8.89 mm
Rated power dissipation(P)	0.25 W
Rated temperature	70 °C
resistance	50000 Ω
resistance law	AUDIO
Resistor type	POTENTIOMETER
rotation angle	270 deg
surface mount	NO
technology	CONDUCTIVE PLASTIC
Temperature Coefficient	1000 ppm/°C
Terminal surface	Matte Tin (Sn)
Terminal shape	FLAT
Tolerance	20%

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Features

RoHS compliant*

Conductive plastic or cermet

Linear and audio tapers

PC board and bushing mount

Gangable

Metal bushing and shaft

Sealed for board washing

51/53 – Sealed 1/2 ˝ (12.5 mm) Square Control

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

Electrical Characteristics

Conductive Plastic

Cermet

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

Entire Unit .................................................................................................... IP64 ............................................................ IP64

Shaft/Bushing .............................................................................................. IP65 ............................................................ IP65

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.)

Detent (Single Section) ................................................................................................................................................................. 1.94 N-cm (2.75 oz.-in.) minimum

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 and date code

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

Hardware .............................................................................One lockwasher and one mounting nut is shipped with each potentiometer (Bushing A: H-37-2 & H-38-2;

Bushing C: H-37-1 & H-38-1; Bushing R: H-37-4 & H-38-9; Bushing S: H-37-1 & H-38-14; Bushing U: H-37-3 & H-38-8)

1Electrical specifications tested at 200 RPM, at room ambient: +25 °C nominal.

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

Environmental Characteristics

Mechanical Characteristics

WARNING

Cancer and Reproductive Harm

www.P65Warnings.ca.gov

*RoHS Directive 2015/863, Mar 31, 2015 and Annex.

Specifications are subject to change without notice. Users should verify actual device performance in their specific

applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the

last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

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