Full analysis of 2728 alloy resistor manufacturer
Overview
2728 alloy resistor is a patch type low resistance resistor made of metal alloy material, which has the characteristics of high power, low temperature coefficient, and excellent thermal stability. Its external dimensions are 6.9mm × 7.2mm (2728), which allows it to withstand high power while maintaining a relatively compact installation area. 2728 alloy resistors play a crucial role in modern electronic devices due to their excellent electrical and mechanical properties.
List of major manufacturers
RALEC (RALEC)
Wangquan Technology is a professional electronic component manufacturer founded in 1994, with production bases in Kaohsiung, Taiwan, Kunshan, China, and Malaysia. The LR2728 series alloy resistors produced by the company are a popular choice in the market.
The main characteristics of Wangquan's 2728 alloy resistor are:
Rated power: 4W
Resistance range: 0.005 Ω (5m Ω) to 0.05 Ω (50m Ω)
Accuracy: ± 1%
Alloy material, suitable for high current sampling
The company focuses on the manufacturing of chip resistors, resistors, and metal plate current detection resistors, and its product quality has obtained certifications such as ISO9000 and ISO14000.
Meritek Electronics
Meritek Electronics is another well-known manufacturer of 2728 alloy resistors, and its MLR series products have a certain influence in the market.
Meritek's 2728 alloy resistor features:
Power selection: 3W, 3.5W
Ultra high precision: ± 0.5%
Low temperature float: 15ppm/° C to 25ppm/° C
Ultra low resistance: minimum up to 0.00597 Ω (approximately 6m Ω)
Working temperature range: 55 ° C~+170 ° C
The company's 2728 alloy resistor adopts metal alloy technology, with extremely low inductance (0.5nH to 5nH) and excellent frequency response, making it very suitable for current detection, voltage division, and pulse applications.
Hao Ou
The HoLRX2728D series alloy resistors produced by Haoou Company are also one of the competitors in the market, providing reliable 2728 alloy resistor solutions.
Characteristics of milliohm 2728 alloy resistor:
Rated power: 4W
Resistance range: covering commonly used values such as 0.04 Ω (40m Ω)
Accuracy: ± 1%
Environmental Standard: Compliant with RoHS Directive (2011/65/EU) requirements
Manufacturers in Shenzhen
Many enterprises in Chinese Mainland also provide 2728 alloy resistance products, mainly including:
Shenzhen Shunhai Technology Co., Ltd.: Provides 2728 packaged alloy resistors with optional precision of 0.5%~5% and temperature coefficient of 15PPM~50PPMShenzhen Huanian Santian Electronics Co., Ltd.: Acting as an agent for low-resistance surface mount resistors made of superalloys, with a 2728 package power of up to 4W and a resistance range of 0.25m Ω to 100m Ω
Hua Nian Mall: Supply 2728 series 4W, 5W power alloy resistors, with a resistance range of 0.0005R~0.2R
The common characteristics of these enterprises' 2728 alloy resistor products are high power, ability to withstand high current instantaneous impact, and low temperature drift.
Technical characteristics of 2728 alloy resistor
Structural advantages
The 2728 alloy resistor adopts a patented structural design, including molded high-temperature packaging and integrated heat dissipation fins, which significantly improves thermal management capabilities. Through these methods, 2728 alloy resistors can maintain excellent electrical characteristics in various high current applications.
Performance Characteristics
Low impedance value: can be as low as 0.25m Ω
Precision tolerance: standard ± 1%, can also provide ± 0.5%
High temperature resistance: The operating environment temperature can reach+170 ° C, or even+275 ° C
Low temperature coefficient: can be as low as 15ppm/° C
Low inductance value: 0.55nH
Low thermal coupling effect EMF: can be as low as 1 μ V/° C
Application field
2728 alloy resistors are widely used in various electronic devices and systems
Computer field: laptops, motherboards, screens
Power management: various charger control boards, power supplies, power converters
Communication equipment: mobile phones and other communication products
Industrial Electronics: Design of High Current Power Supply Products
Automotive Electronics: Products that comply with AECQ200 standards can be used in the automotive industry
summary
There are numerous manufacturers of 2728 alloy resistors, ranging from internationally renowned brands such as Wangquan and Meritek to multiple electronics companies in the Shenzhen area, all offering unique products. Although these 2728 alloy resistors have differences in specifications, they all have excellent electrical performance and reliable quality assurance in common. Choosing a suitable 2728 alloy resistor manufacturer requires comprehensive consideration of factors such as power requirements, accuracy requirements, temperature coefficient, and cost budget to ensure the successful implementation of the project.
