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Series UPR / UPSC


Extreme precise radial Resistors


• Precision Tolerances: ±0.1% is standard, and tolerances as close as ±0.01% are available
• Low Temperature Coefficient: better than 3ppm/°C, 5ppm°C, 10ppm/°C or 15ppm/°C
• Long-Term Stability: better than ±0.05% per 2000 hours of operation.
• Wide Resistance Range: from 10 Ohms to 255 KOhms 		 Specifications
• Resistance Tolerance:±1.0% (tolerances to±0.01% on special order)
• Std. Operating Temperature:-55°C to + 85°C
• TC Temperature Range:-20°C to + 85°C
• Overload: 6.25 times rated power for 5 seconds at voltage not to exceed 1.5 times maximum rated working voltage, DR less than 0.05%
• Load Life: 2000 hours at + 125°C, DR less than 0.05%
• Moisture Resistance: Mil-Std-202, Method 106, DR less than 0.02%
• Thermal Shock: Mil-Std-202, Method 107, Cond. B, DR less than 0.05%
• Isulation Resistance: 10,000 Megohms		• Low Temperature Operation:DR less than 0.02%
• Dielect. Withstanding Voltage:DR less than 0.02%
• Vibration:DR less than 0.01%• Shock: DR less than 0.02%


Types UPSC and UPR Low TC Precision Radial-Lead Resistors - Standard Characteristics
Model
No.		Temperature
Coefficient
ppm/˚C		Wattage
+70˚С		Max.
Working
Voltage		Dielect
Strength		ResistanceОм
Dimensions
Min.Max.
UPSC±3 to±150.60300300100R100RСм. табл
UPR±3 to±150.6025040010R255KСм. табл

 

 
DimUPSCUPR
A7.50±.20
(.295±.008)		10.50±.30
(.413±.012)
B8.50±.20
(.335±.008)		9.00±.30
(.354±.012)
C(.354±.012)
(.098±.008)		4.00±.30
(.157±.012)
D0.63±.05
(.025±.002)		0.63±.05
(.025±.002)
E3.81±.38
(.150±.015)		(.150±.015)
(.300±.015)
F38.10±.50
(1.500±.197)		8.10±.50
(1.500±.197
Dimensions in millimeters (inches)


  
TESTSCONDITIONSMIL-R-55182/9TYPICAL
DRIFTS
POWER CONDITIONING (108)100 hours/rated power at + 125°C 90‘/30‘ cycle-±.02% combined test
THERMAL SHOCK (107)5 cycles -65°C/+150°C±.05%
combined tests
SHORT TIME OVERLOAD6.25 times rated power/5sec
LOW TEMPERATURE STORAGE AND OPERATION1h stor. 45 min rated pow. at -65°C±.05%-
24 h stor. 45 min rated pow. at -65°C-±.01%
TERMINAL STRENGTH (211)2lb pull test±.02%±.01%
DIELECTRIC WITHSTANDING VOLTAGE (301)300 V ATMOSPHERIC
200 V/100.000 ft.		±.02%±.01%
RESIST TO SOLDERING (210)350°C/3 sec.±.02%±.01%
MOISTURE RESISTANCE (106)10 days±.05%±.01%
SHOCK10 shocks 100 g 6 ms sawtooth±.01%±.01%
VIBRATION (204)10 to 2000 Hz. 20 g 8 hours±.02%±.01%
LOAD LIFE (108)2000 hours at rated power at + 25°C, +85°C. or + 125°C±.05%±.05%
10,000 hour at rated power at + 125°C±.5%±.2%
STORAGE LIFE10,000 h. no load at room conditions-±.005%