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quality aluminium housed resistor Arcol HS300 7R5 F designed for direct heatsink mounting and heat control factory
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quality aluminium housed resistor Arcol HS300 7R5 F designed for direct heatsink mounting and heat control factory
>
Specifications
Resistance:
7.5Ω
Power(Watts):
300W
Type:
Wirewound Resistor
Tolerance:
±1%
Temperature Coefficient:
±100ppm/℃
Mfr. Part #:
HS300 7R5 F
Model Number:
HS300 7R5 F
Key Attributes
Product Description

Product Overview

The ARCOL HS Aluminium Housed Resistors are designed for direct heatsink mounting to achieve maximum performance, manufactured in line with MIL 18546 and IEC 115 requirements. These resistors offer high power-to-volume ratio and are wound to maximize high pulse capability. They are suitable for applications requiring robust power dissipation and are RoHS compliant. The range is available in ohmic values from R005 to 100K, with custom designs welcome. For optimal heat transfer, a heat sink compound is recommended between the resistor base and the heat sink mounting surface to prevent exceeding the maximum hot spot temperature of 200C.

Product Attributes

  • Brand: ARCOL
  • Origin: UK
  • Material: Aluminium Housing
  • Certifications: MIL 18546, IEC 115, RoHS Compliant
  • Product Type: Aluminium Housed Resistors
  • Non-Inductive Option: NHS Series available

Technical Specifications

Model MIL-R 18546 Power rating on std. heatsink @25C (Watts) Power rating with no heatsink @25C (Watts) Resistance Range Limiting element voltage (V) Voltage proof AC Peak (V) Voltage proof AC rms (V) Approx weight (gms) Typical surface rise HS mounted (C) Standard heatsink cm Thickness (mm) Dimensions (mm) - A Max Dimensions (mm) - B Max Dimensions (mm) - C Max Dimensions (mm) - D Max Dimensions (mm) - E Max Dimensions (mm) - F 0.3 Dimensions (mm) - G 0.3 Dimensions (mm) - H Max Dimensions (mm) - J Max Dimensions (mm) - K Max Dimensions (mm) - L 0.25* Dimensions (mm) - M Max
HS10 RE 10 5 R005-10K 160 1400 1000 4 5.8 415 1 16.5 30.0 8.8 8.5 15.9 11.3 12.4 4.5 2.4 1.8 2.4 -
HS15 RE 15 7 R005-10K 265 1400 1000 7 5.1 415 1 21.0 36.5 11.0 11.2 19.9 14.3 15.9 5.5 2.8 1.8 2.4 -
HS25 RE 25 9 R005-36K 550 3500 2500 14 4.2 535 1 28.0 51.0 14.8 14.2 27.3 18.3 19.8 7.7 5.2 2.6 3.2 -
HS50 RE 50 14 R01-86K 1250 3500 2500 32 3.0 535 1 28.0 72.5 14.8 14.2 49.1 39.7 21.4 8.4 5.2 2.6 3.2 -
HS75 - 75 24 R01-50K 1400 6363 4500 85 1.1 995 3 47.5 72.0 24.1 27.3 48.7 29.0 37.0 11.8 10.4 3.7 4.4 -
HS100 - 100 30 R01-70K 1900 6363 4500 115 1.0 995 3 47.5 88.0 24.1 27.3 65.2 35.0 37.0 11.8 15.4 3.7 4.4 -
HS150 - 150 45 R01-100K 2500 6363 4500 175 1.0 995 3 47.5 121.0 24.1 27.3 97.7 58.0 37.0 11.8 20.4 3.7 4.4 -
HS200 - 200 50 R01-50K 1900 7070 5000 475 0.7 3750 3 72.5 145.7 41.8 45.5 89.7 70.0 57.2 20.5 10.4 5.5 5.1 103.4
HS250 - 250 55 R01-50K 2200 7070 5000 600 0.6 4765 3 72.5 167.0 41.8 45.5 109.7 89.0 57.2 20.5 10.4 5.5 5.1 122.4
HS300 - 300 60 R01-68K 2500 7070 5000 700 0.6 5780 3 72.5 184.4 41.8 45.5 127.7 104.0 59.0 20.5 12.4 5.5 6.6 141.4

Characteristics

  • Tolerance (Code): Standard 5% (J) and 10% (K). Also available 1% (F), 2% (G) and 3% (H).
  • Tolerance for low values: Typically R05 5%, R047 10%.
  • Temperature coefficients: < 1K 100ppm Std., > 1K 25ppm Std. Lower TCRs available upon request.
  • Insulation resistance (Dry): 10,000 M minimum.
  • Power dissipation: Derates linearly to zero at 200C at high ambient temperatures.
  • Ohmic values: From R005 to 100K depending on wattage size.
  • Low inductive (NHS): Specify by adding N before HS Series code (e.g., NHS50).
  • NHS ohmic value: Divide standard HS maximum value by 4.
  • NHS working volts: Divide standard HS maximum working voltage by 1.414.

Terminations

The HS Range offers a variety of termination options:

  • Standard Pressed Termination: Available on HS10-50, 75-150.
  • 6.35mm Spade Termination (Amp style push on): Available on HS10-50, HS75-150.
  • Unpressed Termination: Available on HS10-50, 75-150.
  • Extended Mouldings: To increase creepage and strike distance between terminal and housing. Available on HS10-50, HS75-150, and HS200-300 (E6 using stud mounted resin disk).
  • Attached Termination to Drawing: Available on HS10-50, HS75-150.
  • Threaded Stud Termination: Available on HS25-50 (E3), HS75-150 (E4 or E6), HS200-300 (E6).
  • Leaded Termination: Leads fitted and insulated externally after moulding. Available with standard lead lengths: HS10-50 (150mm), HS75-150 (150mm), HS200-300 (300mm). Extra length available on request.

For other special terminations, high voltage, low inductance windings, or water-cooled types (HSW600), please contact ARCOL sales.


2412090917_Arcol-HS300-7R5-F_C20274966.pdf

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