Guide to Optimum Utilisation & Mounting of Resistors
HTR’s reliability testing facility is fully alive to the fact that its work in assuring quality can only be judged successful if it is converted to customer assurance. Customer confidence will always be retained if the correct resistor is used in the way it is designed to be used. Towards meeting this objective the quality […]
Application / Design Notes on Selection of Wire Wound Resistors
BASICS Simply put, a resistor is an electronic component connected into an electrical circuit to insert a specific resistance. Resistance is measured in ohms and as per ohms law, the current through the resistor will be directly proportional to the voltage across it and inversely proportional to the resistance. As the current flows through the […]
Pulse / Surge Capability of Resistors
Due to existing needs, many modern electronic circuits and apparatus experience transient pulses and surges. This in turn has led to the need to “design in” transient surge protection especially in circuits like motor controllers. When a motor starts, the current drawn at this point is excessive and can cause failure in resistors. Similarly if […]
Application / Design Notes for Current Sense Resistors
HTR offers a very wide range of Low Ohm resistors for Current Sensing applications as given below: 4. Silicone coated (OFSC Series) High Power and 4 Terminals These devices have emerged to provide a non inductive Low Ohm Resistor for current sensing which can also tolerate high impulse current. They are manufactured from Electrical Resistance […]
Ordering Information For Fusible Resistor
A fusible resistor is a tailor-made dual purpose component – At HTR, we offer Customized Fusing solution as well as Safety version. For Safety Version : At HTR, we can offer a Special Safety version Fusible resistor which is designed to fuse instantaneously when mains voltage 220/240V is applied with no flame or explosion.For the […]
Comparison Between Silicone Coated & Vitreous Enamelled Wire Wound Resistors
The traditional method of encapsulating resistors through the vitreous enamelled route which was in vogue till about 30 years ago has now been largely replaced with Fire Retardant Silicon/Cement coating. It has now been observed in the market that apart from some very limited applications, where the environment is extremely harsh such as the areas […]
Techno/Economic Comparison Between Silicon/Cement Coated Wire Wound Resistors And Ceramic Encased Resistors
Ceramic Encased Resistors Traditionally Wire Wound Resistors meant coated resistors of either silicon or vitreous enameled on a Ceramic body which was wound with resistance wire which was welded or soldered to the terminals and these types of resistors were termed as professional or industrial grade Wire Wound Resistors. However in the mid 1970’s there was a demand […]
