UT-3资料

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rev.󰀠03/2006AUT Series

Resistances from 0.005 to 260kOhms

Power Rating 0.1 to 13Watts

Resistance Tolerances to ± 0.01%

Low TCR: ± 20ppm/K Standard

MIL-R-26 / MIL-R-39007 Power Ratings

Temperature Range: -55°C to +350°C ( “V” Rating )

Non-Inductive Windings Available•

••SPECIFICATIONS

SpecificationValue

Tolerances±0.01%󰀠to󰀠±10%󰀠(󰀠1%󰀠Standard󰀠)

Temperature Coefficient>10W󰀠:󰀠±20ppm/K1W󰀠to10W󰀠:󰀠±50ppm/K<1W󰀠:󰀠Call󰀠Factory

Temperature󰀠Range-55°C󰀠to󰀠+250°C󰀠:󰀠Characteristic󰀠U-55°C󰀠to󰀠+350°C󰀠:󰀠Characteristic󰀠V

Dielectric󰀠Strength500󰀠VAC󰀠:󰀠UT-1󰀠/󰀠UT-1/2A󰀠/󰀠UT-1/2󰀠/󰀠UT-1A1000󰀠VAC󰀠:󰀠All󰀠Others

ConstuctionCenterless󰀠ground󰀠ceramic󰀠coreTinned󰀠copper󰀠or󰀠copperweld󰀠leadsHigh󰀠temperature󰀠/󰀠trivalent󰀠/󰀠inorganic󰀠Silicone󰀠coatingAll󰀠welded󰀠terminations

Environmental󰀠Performance(MIL-STD󰀠202)DR

Characteristic󰀠UCharacteristic󰀠V

Dielectric±0.2%󰀠+󰀠0.05W±0.2%󰀠+󰀠0.05W

Load󰀠Life±1%󰀠+󰀠0.05W ±3%󰀠+󰀠0.05W

Storage±0.2%󰀠+󰀠0.05W±2%󰀠+󰀠0.05W

Moisture󰀠Resistance±0.2%󰀠+󰀠0.05W±2%󰀠+󰀠0.05W

Thermal󰀠Shock±0.2%󰀠+󰀠0.05W±2%󰀠+󰀠0.05W

5X󰀠Overload󰀠(󰀠5s󰀠)±0.2%󰀠+󰀠0.05W±2%󰀠+󰀠0.05W

Shock±0.1%󰀠+󰀠0.05W±0.2%󰀠+󰀠0.05W

Vibration±0.1%󰀠+󰀠0.05W±0.2%󰀠+󰀠0.05W

For󰀠Non-Inductive󰀠Windings󰀠/󰀠insert󰀠the󰀠letter󰀠“N”󰀠(󰀠i.e.󰀠UTN-5󰀠)

Part󰀠Number󰀠-󰀠Resistance󰀠-󰀠Tolerance󰀠-󰀠TCR󰀠(󰀠If󰀠not󰀠standard󰀠)

Example:󰀠UT-5󰀠25kOhms󰀠0.1%050100150200250300350400020406080100120

Power󰀠(󰀠%󰀠)

Ambient󰀠Temperature󰀠(°C)

CHAR󰀠UC

HA

R󰀠V

Power󰀠Derating󰀠CurveSilicone󰀠Coated󰀠Power󰀠Resistors

Ordering Information

󰀠󰀠󰀠󰀠󰀠Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, United Kingdom.󰀠 + 44 (0) 1342 835234 󰀠 + 44 (0) 1342 834306 info@willow.co.uk http://www.willow.co.uk 元器件交易网www.cecb2b.com

󰀠03/2006ATypeWattage󰀠Rating(󰀠Watts󰀠)Maximum󰀠Ohms󰀠2DimensionsMaximumWorkingVoltageMIL-R-26󰀠/MIL-R-39007StyleA±0.062”󰀠[±1.6mm]B±0.031”󰀠[±0.8mm]C1±0.002”󰀠[±0.05mm]UV

UT-10.10.255000.150󰀠[3.8]0.078󰀠[2.0]0.018󰀠[0.46]8.5

UT-1/2A0.40.52.5k0.250󰀠[6.4]0.078󰀠[2.0]0.020 [0.5]0.025󰀠[0.6]20

UT-1/230.750.97.5k0.330󰀠[8.4]0.078󰀠[2.0]0.020 [0.5]0.025󰀠[0.6]29

UT-1A1.01.510k0.406󰀠[10.3]0.094󰀠[2.4]0.020 [0.5]0.025󰀠[0.6]52RW-70

UT-21.52.012.5k0.350󰀠[8.9]0.156󰀠[4.0]0.032 [0.8]0.025󰀠[0.6]60

UT-2A2.53.022k0.500󰀠[12.7]0.187󰀠[4.7]0.032󰀠[0.8]130RW-69

UT-2B3.03.7522k0.560󰀠[14.2]0.187󰀠[4.7]0.032󰀠[0.8]140RW-79󰀠RWR-79󰀠

UT-2C3.04.040k0.500󰀠[12.7]0.250󰀠[6.4]0.040 [1.0]0.032󰀠[0.8]140

UT-2E3.03.530k0.500󰀠[12.7]0.200󰀠[5.1]0.032󰀠[0.8]140

UT-34.05.545k0.625󰀠[15.9]0.250󰀠[6.4]0.032 [0.8]0.040󰀠[1.0]210

UT-55.06.591k0.875󰀠[22.2]0.312󰀠[7.9]0.040󰀠[1.0]360RW-74RWR-74󰀠

UT-5A5.06.565k0.970󰀠[24.6]0.203󰀠[5.2]0.032󰀠[0.8]390

UT-65.06.595k1.000󰀠[25.4]0.312󰀠[7.9]0.040󰀠[1.0]504RW-67

UT-7A37.09.0150k1.375󰀠[35.0]0.375󰀠[9.5]0.040󰀠[1.0]650

UT-7B7.09.0100k1.400󰀠[35.6]0.312󰀠[7.9]0.040󰀠[1.0]590

UT-7C7.09.0154k1.220󰀠[31.0]0.312󰀠[7.9]0.040󰀠[1.0]620

UT-101013260k1.780󰀠[45.2]0.375󰀠[9.5]0.040󰀠[1.0]850RW-78󰀠

RWR-78󰀠SPECIFICATIONS (continued)

1󰀠󰀠Lead󰀠Diameter:󰀠18󰀠AWG󰀠=󰀠0.040”󰀠/󰀠20󰀠AWG󰀠=󰀠0.032”󰀠/󰀠22󰀠AWG󰀠=󰀠0.025”󰀠/󰀠24󰀠AWG󰀠=󰀠0.020”󰀠/󰀠25󰀠AWG󰀠=󰀠0.018”󰀠󰀠󰀠Where󰀠more󰀠than󰀠one󰀠lead󰀠is󰀠listed󰀠/󰀠the󰀠top󰀠value󰀠is󰀠Standard2󰀠󰀠For󰀠non-inductive󰀠windings󰀠/󰀠divide󰀠maximum󰀠resistance󰀠by󰀠23󰀠This󰀠part󰀠does󰀠not󰀠meet󰀠the󰀠RoHS󰀠directive󰀠-󰀠call󰀠factory󰀠for󰀠detailsUT Series

Silicone󰀠Coated󰀠Power󰀠Resistors

󰀠󰀠󰀠󰀠󰀠Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, United Kingdom.󰀠 + 44 (0) 1342 835234 󰀠 + 44 (0) 1342 834306 info@willow.co.uk http://www.willow.co.uk 元器件交易网www.cecb2b.com