Merlin™ Custom Made Precision Wire Wound Resistors

• * Australian Made with lifetime warranty
  * High Surface Temperature and Mechanical Strength
  * The Special Resilient Tropic-Proof Coating is Moisture Resistant and will withstand high thermal cycling operating temperatures of upto 350°C
  * Silver Soldered Terminations
  * No Internal Corrosion Spots
  * Highest Available Resistance Range Wattages from 20 to 2000+
  * Stability of better than 0.02% / 1000 hrs on max load @ 70°C
  * Tolerances of down to less than 0.1% are available, * Standard is 5-10%

FORMERS:
Our standard range of resistors are wound on round and oval section formers of high grade insulation ceramic. Special former lengths and shapes or materials can be used to meet customer specifications. e.g. we are volume producers of special resistance windings on fibreglass and "flexible" bakelite cores to supply the original equipment requirements of Australian Car and Electical Appliance Manufacturers.

RESISTANCE WIRE:
Resistance stability is maintained throughout the operating range by the exclusive use of resistance wires having a temperature co-efficient of 20ppm. Wire with particular temperature co-efficient characteristics can be used to supply customer special order requirements. Resistance winding wires are silver soldered to the terminating bands to ensure reliability even under overload conditions.

RESISTOR COATING:
This Tropic-Proof coating compounded with a special silicone resin has been developed to withstand high operating temperatures and thermal cycling while retaining excellent electical insulation and moisture resistance. Resistors with this coating are rated at full load to a temperature rise of 250°C above an ambient of 20°C, but independent tests prove that surface temperatures upto 350°C can be maintained continously.

QUALITY CONTROL:
Our winding technique, accurately monitored at near zero tension, together with controlled temperature cycling during coating ensures maximum stability. Each stage of manufacture is subject to close quality control checks which together with individual final inspection and testing maintains our high Standard of Reliability.

RESISTANCE RANGE:
Through using only the highest quality resistance wires, we can offer the widest "Standard Range" of resistance values to former size available. Other values are readily available.

STABILITY:
Better than 0.02% per 1,000 hours running at maximum load at 70°C

TOLERANCE:
Standard tolerance 5% 10 ohms and above, 10% below 10 ohms, these tolerances apply thoughout the range, but tolerances down to 0.1% are readily available for all types. Tolerances of less than 0.1% Matched Pair, Resistor Chains etc., can be supplied to special order.

ALSO available are Grid Resistors, Rheostats (Potentiometers) and Volatage Conversion Units for semi-trailer applications.