Wirewound Cement Resistor Ceramic Resistance 5% 50W Horizontal 1ohm to 200ohm
Product Information:
- Cement resistors, as the name implies, are resistors potted with cement (in fact, not cement but refractory clay, which is commonly known as), that is, the resistance wire is wound on non-alkali heat-resistant porcelain parts, and the outside is heat-resistant, moisture-resistant and corrosion-resistant. The material is protected and fixed, and the wire-wound resistor body is placed in a square porcelain frame, filled and sealed with special non-combustible heat-resistant cement. There are two types of cement resistors: ordinary cement resistors and cement wirewound resistors. The shape of the cement resistor is shown in the figure. Cement resistors are a type of wirewound resistors, which are resistors with high power and can allow the passage of large currents. Its function is the same as that of general resistance, but it can be used in occasions with large current, such as being connected in series with the motor to limit the starting current of the motor, and the resistance value is generally not large. Cement resistors have the characteristics of small size, shock resistance, moisture resistance, heat resistance, good heat dissipation, and low price. They are widely used in power adapters, audio equipment, audio frequency dividers, instruments, meters, televisions, automobiles and other equipment.
- Here we mainly talk about the use in speaker crossovers. Civil crossovers generally use cement resistances of several W; while professional crossovers generally use 10W, 20W, 30W or even 50W in order to meet the requirements of special occasions. To 100W; this is not surprising, after all, a few W of power is obviously not enough in professional performance occasions. Some friends' frequency divider resistors are often broken. The reason is generally caused by too low power. When replacing, you can choose a larger power. For example, the original is 10W, then you can replace it with 20W if the installation space allows. , and there are no side effects; but you can't change it too much, so as not to threaten the speaker!
- In addition to current limiting, cement resistors have many other uses. For example, the treble of the speaker is too loud. Connect only a resistance of about 4 ohms to the positive pole of the tweeter, and then add a resistor of about 20 ohms, so that the sensitivity of the treble is reduced. About 3-4dB, this relationship is that the smaller the resistance value of the string, the less the sensitivity drops, the greater the resistance value of the string, the more the drop; The less, the smaller the drop, the more. Be careful not to overdo it. Generally, the string is below 20 euros, and the parallel is above 4.7 euros, so as not to affect the listening effect!
- Colour: White
- Rated Power: 50W
- Resistance Tolerance: 5%
- Technology: Wirewound
- Resistance: Choose between 1 Ohm - 200 Ohm
- Type: Wirewound Resistor
- Condition: New
You can find more products in different material, type, color , sizes and shapes in our shop！ If you have special needs, please contact us, we can customize according to your needs!
Package Including:
- According to your choice.
Guarantee:
- Good Good Good quality. Buy with confidence!
- We maintain high standards of excellence and strive for 100% customer satisfaction!
Shipping
- We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay.
Contact us / Feedback：
- Please contact us via ebay messages only. A response will not be returned via email. All ebay messages will be answered as fast and efficient as possible.
- Please take a look at more great items offered in my store, and we do hope you enjoy your shopping experience.
