H4976KBCA

Through Hole Resistors

Through hole resistors are resistors that are made to fit through pre-drilled holes in a printed circuit board (PCB) or other device. Through hole resistors usually come in an axial package, a small cylinder encased in epoxy with the leads emerging from either end. While they are simple to assemble, through holes are not as efficient as surface mount resistors and can be bulky and awkward.

One such through hole resistor is the H4976KBCA. This small device measures just 0.5"(L) x 0.19"(D) and features a power rating of 0.5W with a tolerance of ±0.25 ohm. The H4976KBCA is a common choice for through hole resistors because of its compact size and low-cost. Its performance, however, is still quite good.

H4976KBCA Application Field and Working Principle

The H4976KBCA is most commonly used in high-power board-level applications as a drop-in resistor for the board. It is a reliable, inexpensive component that is well-suited for a variety of board-level applications such as switching power supplies, communications equipment, audio and video equipment, and motor control circuits.

The H4976KBCA works by creating an opposition to the flow of current. This opposition creates a voltage drop across the resistor, which reduces the amount of voltage the device has access to. This has the effect of limiting the amount of current that can flow through the device. The amount of resistance the resistor offers is determined by its size and material. The H4976KBCA is constructed from uniform carbon film, which provides good low frequency performance and excellent stability.

Capsule Type

The H4976KBCA is available in two different capsule types, the CLL-R and the CLL-S. The CLL-R version is a very compact body with an extended lead length that is ideal for drop-in applications. The CLL-S version is designed for more general applications with a longer body and shorter leads. Both capsule types feature the same performance characteristics and the same terminal arrangement.

Conclusion

The H4976KBCA is an excellent choice for through hole resistors given its small size and low cost. It is well suited for high-power board-level applications and features excellent low frequency performance and stability. The H4976KBCA is available in two different capsule types, each of which offers the same performance characteristics.