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. 893-2857
Mfr. Part No.825F20RE
BrandOhmite
£5.86
Each
Units
20Ω 25W 825 Aluminium Housed ±1% Wire Wound Axial, Solder +25°C +275°C -20ppm/°C +20ppm/°C - 51 x 28 x 14.8mm -
RS Stock No. 891-6546
Mfr. Part No.850F50RE
BrandOhmite
£6.40
Each
Units
50Ω 50W 850 Aluminium Housed ±1% Wire Wound Axial, Solder +25°C +275°C -20ppm/°C +20ppm/°C - 72.5 x 28 x 14.8mm -
RS Stock No. 891-6537
Mfr. Part No.850F25RE
BrandOhmite
£7.16
Each
Units
25Ω 50W 850 Aluminium Housed ±1% Wire Wound Axial, Solder +25°C +275°C -20ppm/°C +20ppm/°C - 72.5 x 28 x 14.8mm -
RS Stock No. 893-0883
Mfr. Part No.C300K8R0E
BrandOhmite
£21.51
Each
Units
300W C300 Tubular ±10% Wire Wound - +25°C +400°C -400ppm/°C +400ppm/°C - 28.58 x 215.9mm 28.58mm
RS Stock No. 893-3380
Mfr. Part No.TGHGCR0500FE
BrandOhmite
£30.47
Each
Units
50mΩ 100W TGH Planar ±1% Thick Film Screw -55°C +155°C - <+500 ppm/°C, <+60 ppm/°C - 38.1 x 24.9 x 12mm -
RS Stock No. 891-6477
Mfr. Part No.825F25RE
BrandOhmite
£5.86
Each
Units
25Ω 25W 825 Aluminium Housed ±1% Wire Wound Axial, Solder +25°C +275°C -20ppm/°C +20ppm/°C - 51 x 28 x 14.8mm -
RS Stock No. 892-8568
Mfr. Part No.L50J4R0E
BrandOhmite
£3.83
Each
Units
50W L50 Tubular ±5% Wire Wound Solder +25°C +350°C -400ppm/°C +400ppm/°C - 14.3 (Dia.) x 101.6 Lmm 14.3mm
RS Stock No. 891-6534
Mfr. Part No.850F3R0E
BrandOhmite
£6.60
Each
Units
50W 850 Aluminium Housed ±1% Wire Wound Axial, Solder +25°C +275°C -50ppm/°C +50ppm/°C - 72.5 x 28 x 14.8mm -
RS Stock No. 892-8495
Mfr. Part No.C300K2R5E
BrandOhmite
£22.71
Each
Units
2.5Ω 300W C300 Tubular ±10% Wire Wound - +25°C +400°C -400ppm/°C +400ppm/°C - 28.58 x 215.9mm 28.58mm
RS Stock No. 891-6528
Mfr. Part No.850F1R0E
BrandOhmite
£6.16
Each
Units
50W 850 Aluminium Housed ±1% Wire Wound Axial, Solder +25°C +275°C -50ppm/°C +50ppm/°C - 72.5 x 28 x 14.8mm -
RS Stock No. 891-6499
Mfr. Part No.825F750E
BrandOhmite
£6.05
Each
Units
750Ω 25W 825 Aluminium Housed ±1% Wire Wound Axial, Solder +25°C +275°C -20ppm/°C +20ppm/°C - 51 x 28 x 14.8mm -
RS Stock No. 892-7679
Mfr. Part No.825F200E
BrandOhmite
£6.12
Each
Units
200Ω 25W 825 Aluminium Housed ±1% Wire Wound - +25°C +275°C -20ppm/°C +20ppm/°C - 51 x 28 x 14.8mm -
RS Stock No. 892-4995
Mfr. Part No.L100J250E
BrandOhmite
£9.77
Each
Units
250Ω 100W L100 Tubular ±5% Wire Wound Solder Lug - - -260ppm/°C +260ppm/°C - 19.1 (Dia.) x 165.1mm 19.1mm
RS Stock No. 891-6530
Mfr. Part No.850F2R0E
BrandOhmite
£7.16
Each
Units
50W 850 Aluminium Housed ±1% Wire Wound Axial, Solder +25°C +275°C -50ppm/°C +50ppm/°C - 72.5 x 28 x 14.8mm -
RS Stock No. 891-6559
Mfr. Part No.850F5R0E
BrandOhmite
£6.79
Each
Units
50W 850 Aluminium Housed ±1% Wire Wound Axial, Solder +25°C +275°C -50ppm/°C +50ppm/°C - 72.5 x 28 x 14.8mm -
RS Stock No. 893-0971
Mfr. Part No.F30J1K0E
BrandOhmite
£12.09
Each
Units
1kΩ 30W F30 Planar ±5% Wire Wound Tinned Lug +25°C +350°C -260ppm/°C +260ppm/°C - 31.75 x 25.4 x 14.28mm -
RS Stock No. 892-5171
Mfr. Part No.L25J4R0E
BrandOhmite
£5.60
Each
Units
25W L25 Tubular ±5% Wire Wound Solder +25°C +350°C -400ppm/°C +400ppm/°C - 14.3 (Dia.) x 50.8 Lmm 14.3mm
RS Stock No. 891-6442
Mfr. Part No.810F20RE
BrandOhmite
£4.83
Each
Units
20Ω 10W 810 Aluminium Housed ±1% Wire Wound Axial, Solder +25°C +275°C -20ppm/°C +20ppm/°C - 36.5 x 21 x 11mm -
RS Stock No. 893-3365
Mfr. Part No.TGHGCR0100FE
BrandOhmite
£23.16
Each
Units
10mΩ 100W TGH Planar ±1% Thick Film Screw -55°C +155°C - <+500 ppm/°C, <+60 ppm/°C - 38.1 x 24.9 x 12mm -
RS Stock No. 893-5077
Mfr. Part No.L100J4R0E
BrandOhmite
£10.93
Each
Units
100W L100 Tubular ±5% Wire Wound Solder +25°C +350°C -400ppm/°C +400ppm/°C - 19.1 (Dia.) x 165.1 Lmm 19.1mm