5905-01-188-6823, RESISTOR,VARIABLE,HYBRID

5905-01-188-6821 RESISTOR,VARIABLE,NONWIRE WOUND,NONPRECI

National Stock Number:
5905-01-188-6823

Federal Supply Class:
5905

National Item Identification Number:
011886823

Description:
RESISTOR,VARIABLE,HYBRID

Detail:
A RESISTOR IN WHICH A SLIDING OR ROLLING CONTACT MOVES OVER AN EXPOSED AREA OF THE RESISTIVE ELEMENT. UNIFORM CONTACT PRESSURE ON THE RESISTANCE ELEMENT IS MAINTAINED BY POSITIVE PRESSURE TO PERMIT SMOOTH ELECTRICAL AND MECHANICAL CONTROL OF THE RESISTOR OVER THE ENTIRE RESISTANCE RANGE. THE RESISTIVE ELEMENT IS CONSTRUCTED OF A COMBINATION OF TWO MATERIALS USUALLY CONSISTING OF A WIREWOUND ELEMENT WITH A COATING OF CONDUCTIVE PLASTIC APPLIED OVER THE RESISTANCE WIRE WHERE THE SLIDER MAKES CONTACT. MAY BE CONSTRUCTED OF A SINGLE OR MULTITURNS OF WIRE SUPPORTED ON AN INSULATING STRUCTURE ON WHICH THE WIPER CONTACTS THE COATED WIRE CONTINUOUSLY IN THE DIRECTION OF WIPER TRAVEL. THE OPPOSITION TO THE FLOW OF CURRENT IS AN INHERENT PROPERTY OF THE WIRE USED AND IS MANIFESTED IN THE HEAT DISSIPATED IN THE RESISTOR ITSELF. FOR ITEMS HAVING MANUALLY POSITIONED TAPS DESIGNED TO BE SET AND FIXED PRIOR TO USE, SEE RESISTOR, ADJUSTABLE. FOR ITEMS WITH STEP BY STEP VARIATION, SEE RHEOSTAT; AND RESISTOR, STEP BY STEP. FOR TANDEM-MOUNTED ITEMS DESIGNED TO FUNCTION TOGETHER AS AN ATTENUATOR (AND RATED ACCORDINGLY), SEE ATTENUATOR, VARIABLE. EXCLUDES OTHER RESISTOR (1), VARIABLE, (AS MODIFIED).

Manufacturer Information:

3750S-494-103	32997	BOURNS INC
3751H-424-103	32997	BOURNS INC
3751H-424-103	3Z867	BOURNS, INC.
3751H-424-103	4J937	BOURNS NETWORKS
805179-4	96214	RAYTHEON COMPANY

Techincal Specification:

SECTION QUANTITY	1
ELECTRICAL RESISTANCE PER SECTION	10.0 KILOHMS SINGLE SECTION
RESISTANCE TOLERANCE PER SECTION IN PERCENT	-5.0 TO 5.0 SINGLE SECTION
FUNCTION CONFORMITY PER SECTION	SINGLE SECTION INDEPENDENT LINEARITY
FUNCTION CHARACTERISTIC PER SECTION	SINGLE SECTION LINEAR
FUNCTION CONFORMITY TOLERANCE PER SECTION	-0.50 TO 0.50 SINGLE SECTION
SHAFT RUNOUT	0.003 INCHES
LATERAL RUNOUT	0.003 INCHES
PILOT DIAMETER RUNOUT	0.002 INCHES
SHAFT RADIAL PLAY	0.002 INCHES
SHAFT BEARING TYPE	BALL
SHAFT END PLAY	0.005 INCHES
MAXIMUM STARTING TORQUE	0.50 INCH-OUNCES
MAXIMUM RUNNING TORQUE	0.30 INCH-OUNCES
TEMP COEFFICIENT OF RESISTANCE PER SECTION IN PPM PER DEG CELSIUS	-50.0 TO 50.0 SINGLE SECTION
POWER DISSIPATION RATING PER SECTION IN WATTS	1.0 FREE AIR SINGLE SECTION
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT FULL RATED POWER	70.0 SINGLE SECTION
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER	125.0 SINGLE SECTION
BODY STYLE	CYLINDRICAL SERVO MOUNTED
PILOT DIAMETER	0.3750 INCHES MAXIMUM
PILOT LENGTH	0.0620 INCHES NOMINAL
UNDERCUT DIAMETER	0.400 INCHES MAXIMUM
UNDERCUT WIDTH	0.0620 INCHES NOMINAL
BODY DIAMETER	0.500 INCHES NOMINAL
BODY LENGTH	1.431 INCHES NOMINAL
MOUNTING LIP DIAMETER	0.5000 INCHES NOMINAL
MOUNTING LIP DEPTH	0.0620 INCHES NOMINAL
ACTUATOR TYPE	SINGLE SHAFT
SHAFT STYLE	ROUND, SLOTTED
SHAFT DIAMETER	0.0935 INCHES MAXIMUM
SHAFT LENGTH	0.625 INCHES NOMINAL
ROTARY ACTUATOR TRAVEL IN ANGULAR DEG	5400.0 NOMINAL
ACTUATOR TRAVEL CONTROL FEATURE	CLUTCH
MOUNTING METHOD	CLAMP RING
TERMINAL TYPE AND QUANTITY	1 TAB, SOLDER LUG AND
	2 TURRET
TERMINAL LOCATION	LONGITUDINALLY POSITIONED ON THE CIRCUMFERENCE
RELIABILITY INDICATOR	NOT ESTABLISHED
TEST DATA DOCUMENT	96214-805179 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
OVERALL LENGTH	2.056 INCHES NOMINAL
OVERALL DIAMETER	0.672 INCHES NOMINAL
FRAGILITY FACTOR	MODERATELY RUGGED
PRECIOUS MATERIAL	GOLD
PRECIOUS MATERIAL AND LOCATION	TERMINAL SURFACES GOLD

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