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Series UT0 pages
Resistors
UT - series
Precision Power Resistors
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Specification
Resistance Range
Power
UT-1/2A
UT-1A
UT-2A
0,01 - 2,5k
0,01 - 10k
0,01 - 22k
0,4Watts
1Watts
• Power Ratings up to 10 Watts
• Stable Pulse Handling
• Tolerances 0,01% to 1%
• Standard TCR ±20ppm/K
• Low Inductive Version (Option)
• Any Resistance from 0,01Ω to 260kΩ
• Special Lead Bending
• High Temperature Range -55°C bis 350°C
2,5Watts
Standard Tolerance
UT-3
UT-5
0,01 - 45k 0,01 - 90k
4Watts
UT-7
UT-10
0,01 - 154k
5Watts
7Watts
0,01 - 260k
10Watts
0,02%; 0,05%; 0,1%; 0,25%; 0,5%, 1%; 5%
Temperature Coefficient
±20ppm/K (R ≥ 10Ω)
±50ppm/K (1Ω ≥ R < 10Ω)
±90ppm/K / 120ppm (R < 1Ω)
Operating Temperature
-55 °C - 275 °C (HT Version: -55 °C - 350 °C)
Operating Voltage (max.)
20VAC
52VAC
130VAC
Withstanding Voltage
210VAC
360VAC
≥ 1GOhm
Power Derating Curve
Mechanical Data
Carrier
Leads
Parameter
Silcone Coating
Wire, Special Alloy
Multi - Chamber Coil
Copper
Power (in % of the
Nominal Value)
120
Resistance Element
850VAC
1000VAC (500VAC UT-1/2A, UT-1A)
Insulation Resistance ≥
Housing Silcone Coating
620VAC
Test
100
80
HT - Version (Option)
60
40
Standard Version
20
0
0
50
100 150 200 250 300 350
Ambient Temperature (°C)
∆ R (HT-Standard)
∆ R (HT-Version)
Load Life
90 min ON, 30 min OFF, 1000h at 25°C
±1% + 0,05Ω
±3% + 0,05Ω
Shelf Life
15°C - 35°C, r.H. 15 - 75%, 10000h
±0,2% + 0,05Ω
±2% + 0,05Ω
Humidity
90 - 95% RH, 0,1W, 1000h at 40°C
±0,2% + 0,05Ω
±2% + 0,05Ω
Temperature Cycle
-55°C 30 min, +155°C 30min. 1000h
±0,2% + 0,05Ω
±2% + 0,05Ω
5x Related Power, 5 sec.
±0,2% + 0,05Ω
±2% + 0,05Ω
IEC 60068-2-27 10G, 6ms, Saw Tooth
±0,1% + 0,05Ω
±0,2% + 0,05Ω
20G, 10Hz - 55Hz - 10Hz, 3 min.
±0,1% + 0,05Ω
±0,2% + 0,05Ω
350°C ±5°C 3 Seconds
±0,1% + 0,05Ω
±0,2% + 0,05Ω
Overload
Shock
Vibration
Soldering Heat Resistance
MEGATRON Elektronik GmbH & Co. KG ▪ Hermann-Oberth-Strasse 7 ▪ 85640 Putzbrunn / Munich
Tel.: +49 89 46094-0 ▪ Fax: +49 89 46094-201 ▪ www.megatron.de ▪ info@megatron.de
Date: t
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5 / 2014
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