Panel Mount Fixed Resistors

Panel mount fixed resistors are used to limit the flow of electricity in an electrical circuit (resistance). They are a type of fixed resistor which means the resistance is set at a specific value and can't be changed. Resistors are important because they help to prevent damage or destruction of other circuit components.

Features and benefits of panel mount fixed resistors

Panel mount fixed resistors feature a wire wound design (metallic wire is wound around a core of non-conductive material to reduce or restrict the flow of electric current) with a metal (usually aluminium) housing that provides heat conduction. They may also have flameproof construction or a corrugated ribbon element to allow for rapid cooling.

Applications of panel mount fixed resistors

Panel mount fixed resistors are commonly used for large electrical and production machinery, motor start/stop cycles, equipment discharge, load test simulation and dynamic braking.

Panel mount fixed resistors are also particularly suited for applications where the resistor is used to promote heat loss and cooling, because of its low temperature coefficient of resistance (TCR) – in other words, its resistance remains nearly constant over a wide range of temperatures.


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Description Price Resistance Power Rating Series Package/Case Tolerance Technology Termination Style Minimum Operating Temperature Maximum Operating Temperature Minimum Temperature Coefficient Maximum Temperature Coefficient Temperature Coefficient Dimensions Overall Diameter
RS Stock No. 175-4100
BrandRS PRO
£2.572
Each (In a Pack of 5)
Units
500mΩ 25W - Aluminium Housed ±5% Aluminium - - +200°C - - - 27.3 x 28 x 14.8mm -
New
RS Stock No. 185-2283
BrandRS PRO
£29.88
Each
Units
- - - - - Wire Wound - - - - - - - -
RS Stock No. 175-2497
BrandRS PRO
£25.33
Each
Units
75Ω 300W RS300 Aluminium Housed ±5% Wire Wound - - +200°C - - - 141.4 x 72.5 x 41.8mm -
RS Stock No. 146-8309
BrandRS PRO
£11.68
Each
Units
4.7Ω 72W RSSC - ±5% Wire Wound Solder Lug - - -400ppm/°C +400ppm/°C ±400ppm/°C 20 (Dia.) x 119mm 20mm
RS Stock No. 175-4101
BrandRS PRO
£2.572
Each (In a Pack of 5)
Units
680mΩ 25W - Aluminium Housed ±5% Aluminium - - +200°C - - - 27.3 x 28 x 14.8mm -
RS Stock No. 131-1277
BrandRS PRO
£2.286
Each (In a Pack of 5)
Units
1.5Ω 50W - Aluminium Housed ±5% Wire Wound Axial - +200°C -100ppm/°C +100ppm/°C ±100ppm/°C 72.5 x 29.7 x 14.8mm -
RS Stock No. 175-2472
BrandRS PRO
£10.87
Each
Units
470mΩ 150W RS150 Aluminium Housed ±5% Wire Wound - - +200°C - - - 97.7 x 47.5 x 24.1mm -
New
RS Stock No. 185-2343
BrandRS PRO
£50.90
Each
Units
47Ω 500W R500 - ±5% Wire Wound Wire Lead -25°C +250°C -200ppm/°C +200ppm/°C ±200ppm/°C 335 x 60 x 30mm -
RS Stock No. 175-4115
BrandRS PRO
£3.034
Each (In a Pack of 5)
Units
33kΩ 50W - Aluminium Housed ±5% Aluminium - - +200°C - - - 49.1 x 28 x 14.8mm -
RS Stock No. 175-2498
BrandRS PRO
£25.33
Each
Units
220mΩ 300W RS300 Aluminium Housed ±5% Wire Wound - - +200°C - - - 141.4 x 72.5 x 41.8mm -
RS Stock No. 146-8310
BrandRS PRO
£11.68
Each
Units
10Ω 72W RSSC - ±5% Wire Wound Solder Lug - - -400ppm/°C +400ppm/°C ±400ppm/°C 20 (Dia.) x 119mm 20mm
New
RS Stock No. 185-2388
BrandRS PRO
£5.43
Each
Units
3.9Ω 50W RSLPR50 - ±5% Wire Wound Wire Lead -25°C +250°C - - - 50 x 75 x 5.7mm -
RS Stock No. 175-4127
BrandRS PRO
£3.034
Each (In a Pack of 5)
Units
12Ω 50W - Aluminium Housed ±5% Aluminium - - +200°C - - - 49.1 x 28 x 14.8mm -
New
RS Stock No. 185-2315
BrandRS PRO
£21.05
Each
Units
22Ω 200W R200 - ±5% Wire Wound Wire Lead -25°C +250°C -200ppm/°C +200ppm/°C ±200ppm/°C 190 x 60 x 30mm -
RS Stock No. 175-4102
BrandRS PRO
£2.572
Each (In a Pack of 5)
Units
100mΩ 25W - Aluminium Housed ±5% Aluminium - - +200°C - - - 27.3 x 28 x 14.8mm -
RS Stock No. 146-8319
BrandRS PRO
£49.50
Each
Units
280W RSSC - ±10% Wire Wound Solder Lug - - -400ppm/°C +400ppm/°C ±400ppm/°C 30.6 (Dia.) x 252mm 30.6mm
RS Stock No. 175-2465
BrandRS PRO
£10.87
Each
Units
2.2Ω 150W RS150 Aluminium Housed ±5% Wire Wound - - +200°C - - - 97.7 x 47.5 x 24.1mm -
RS Stock No. 174-2554
BrandRS PRO
£20.08
1 Box of 1
Box(es)
22Ω 200W HS200 Aluminium Housed ±5% Wire Wound Axial - +200°C -100ppm/°C +100ppm/°C ±100ppm/°C 145.7 x 72.5 x 41.8mm -
RS Stock No. 178-1193
BrandRS PRO
£90.32
Each
Units
4.7kΩ 350W - - ±5% Thick Film Screw -55°C +150°C -150ppm/°C +150ppm/°C ±150ppm/°C 60 x 65 x 32mm -
New
RS Stock No. 185-2285
BrandRS PRO
£29.88
Each
Units
250W R250 Aluminium Housed ±5% Aluminium Wire Lead -25°C +250°C <-100ppm/°C <+100ppm/°C <±100ppm/°C 180 x 80 x 10mm -
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