As a leading global manufacturer of passive components, TA-I's diverse range of current sensing resistor products stems from deep adaptation to market demand and technical characteristics. Through multiple series layouts, Dayi is able to cover all aspects of demand, from basic detection to high-precision and high reliability scenarios. The following are the core reasons for the diversification of its product line:
1、 Meet the precision and structural requirements of different technological scenarios
Four terminal structure series
For high-precision current detection scenarios, Dayi has developed four terminal resistor series such as AMF, RLF, RLFC, etc. The four terminal design eliminates lead resistance interference through independent current and voltage terminals, making it suitable for fields such as new energy vehicle BMS and communication base station RF modules that require extremely high measurement accuracy. For example, the RLF series has a resistance as low as 0.0005 Ω and an accuracy of ± 0.5%, which can meet the low-power requirements of high-frequency circuits.
Alloy Material Series
Alloy resistors (such as RLP and RLT series) are made of materials such as NiCr and CuMn, combined with vacuum sputtering technology, and have high power density (up to 3W) and low temperature drift characteristics (± 75 ppm/℃), suitable for high current scenarios such as new energy charging piles and industrial frequency converters. The resistance range of RLP series covers 0.5m Ω~150m Ω, supporting 1%~5% accuracy selection, and is widely used in power adapters and power tools.
2、 Dealing with complex environments and special functional requirements
Anti sulfurization and automotive grade series
In response to sulfur-containing, high-temperature, and high humidity environments in automotive electronics and industrial control, Dayi has launched the RLH and RLHA series. These products are formulated with sulfur resistant materials and certified with AECQ200, ensuring long-term stability in engine management units and onboard charging modules. For example, the RLHA series has a power of up to 3W and a resistance range of 0.1 Ω~0.91 Ω, designed specifically for new energy vehicles.
Wide electrode heat dissipation design series
To improve heat dissipation performance, the RLN and RLPL series adopt a wide electrode design to reduce temperature rise and extend service life. For example, the RLN series has a package size of 3720 and is suitable for high power density scenarios such as server power supplies.
3、 Adapt to diverse packaging and power requirements
Dayi meets the space and power limitations of different devices through series design:
Miniature packaging: RLS series packaged in 0402 and 0603, suitable for consumer electronics power management circuits.
High power packaging: such as the RLP series packaged in 4527, with a power of up to 3W, supporting high current detection for industrial automation equipment.
4、 Responding to industry standards and customized needs
Industry certification adaptation
Some series (such as RLH) have passed AECQ200 automotive certification, meeting the stringent reliability requirements of automotive electronics.
Customized development
Dayi supports customized special resistance values, packaging, and functions (such as anti sulfurization enhanced types), flexibly responding to customer needs and shortening development cycles.
5、 Global supply and technological iteration drive
Dayi has production bases in Taiwan, mainland China, Southeast Asia and other places, forming an efficient supply chain to ensure rapid delivery of different series of products. Meanwhile, its continuously iterative manufacturing processes, such as laser fine-tuning and thin film manufacturing, drive a series of updates, such as the optimization of four terminal structures and innovation in alloy materials.
The diversified series of Dayi current detection resistors is essentially a product that deeply combines technical characteristics, application scenarios, and market demand. Through differentiated design (such as four terminals, alloy materials, sulfur resistance, etc.), flexible packaging adaptation, and industry standard coverage, Dayi has achieved full penetration from consumer electronics to automotive electronics. This multi series strategy not only enhances product competitiveness, but also establishes technological advantages for it in high-end markets such as new energy and 5G communication.