The full name of Walter Electronics is Suzhou Walter Electronics Co., Ltd., established in Suzhou in 2000. We mainly develop and produce two categories of products: fuses and alloy resistors.
Walter Electronics' alloy resistors have developed a large number of products that meet market demand in response to changes in the market. In addition to the existing products, the PMSH series of alloy resistors made of pure metal process manganese copper material has recently been added. This series has changed from the original high resistance value to full resistance coverage, with a resistance value (0.5mR~0.5R), and are all high-power products of 3W, widely used in frequency converters and other power products, with characteristics such as low inductance and high power.
Main parameters of PMSH alloy surface mount resistors (standard pads):
Volume range: 12062512
Resistance range: 0.0005R~0.5R
Rated power range: 1W~3W
Resistance accuracy range: 0.5%, 1%
Temperature coefficient: ± 50ppm/℃
The main selection parameters for Walter alloy resistors include the following categories:
1. Product accuracy: F=1%, G=2%, J=5%
2. Product size: 02010402060308051206201025120306008061210101225, etc. Volume
3. Temperature coefficient: The unit is ppm/℃. Depending on the resistance value and material, the temperature coefficient may also vary. Generally speaking, the temperature coefficient is within ± 50ppm/℃
4. Standard resistance value of resistance: The unit is generally expressed in Ω, R, mR, m Ω, and different volumes have different resistance ranges. Currently, the resistance range that alloy resistors can cover is between 0.1mR and 0.7R.
5. The resistance and power of the product are expressed in units of W. At present, the power range of alloy resistors is very wide, ranging from 0.2W to 12W, and is constantly being developed and improved.
6. Parasitic inductance, also known as high-frequency response, varies depending on the material. The parasitic inductance of conventional non inductive resistors, such as manganese copper alloy resistors, is ≤ 5nH.
7. Low electric couple effect: EMF<0.5uV/℃.
8. High reliability: (better than 2000 hours of US military regulations Mil-202, Method 107G testing standard)
9. Materials include: manganese copper, nickel copper, iron chromium aluminum
Walter alloy resistors are the core products of Walter Electronics, so the products are very diverse, with different materials, series, power, and various types of solder pads and pins to choose from.
The metal foil process is made into the following series:
The main parameters of STE metal foil alloy patch resistors (standard pads) are:
Volume range: 0603080512062010251239214527
Resistance range: 0.003R~0.7R
Rated power range: 0.5W~4W
Resistance accuracy range: 0.5%, 1%
Temperature coefficient: ± 50ppm/℃
The main parameters of HTE/HTC metal foil alloy patch resistors (long electrode/test pad/long pad) are:
Volume range: 080512062012251230083015361839215931
Resistance range: 0.001R~0.2R
Rated power range: 1W~5W
Resistance accuracy range: 0.5%, 1%
Temperature coefficient: ± 50ppm/℃
The main parameters of HFCL metal film alloy resistors (four terminal resistors, four electrode resistors, four pin resistors, Kelvin resistors) are as follows:
Volume range: 060312062512302301536183921
Resistance range: 0.001R~0.25R
Rated power range: 0.33W~4W
Resistance accuracy range: 0.5%, 1%
Temperature coefficient: ± 50ppm/℃
The main parameters of HFPL metal foil small volume alloy resistors (four terminal resistors, four electrode resistors, four pin resistors, Kelvin resistors) are as follows:
Volume range: 060308051206
Resistance range: 0.0025R~0.0055R
Rated power range: 0.33W~1W
Resistance accuracy range: 0.5%, 1%
Temperature coefficient: ± 50ppm/℃
The main selection series of Walter pure metal plate alloy current sampling resistors are as follows:
The main product selection parameters for MSH pure metal plate alloy surface mount resistors are as follows:
Volume range: 2512
Resistance range: 0.0005R~0.3R
Rated power range: 2W~3W
Resistance accuracy range: 0.5%, 1%
Temperature coefficient: ± 50ppm/℃
Material: Manganese Copper Alloy/Iron Chromium Aluminum Alloy
The main product selection parameters for MSHL pure metal plate alloy surface mount resistors are as follows:
Volume range: 2512
Resistance range: 0.001R~0.01R
Rated power range: 2W~3W
Resistance accuracy range: 0.5%, 1%
Temperature coefficient: ± 50ppm/℃
Material: Manganese Copper Alloy
The selection of Walter ultra-thin adhesive alloy current detection resistor series is introduced as follows:
The selection parameters for MSTC ultra-thin alloy current detection resistors (short electrode, conventional electrode) are as follows:
Volume range: 02010402060308051206
Resistance range: 0.001R~0.02R
Rated power range: 0.2W~1W
Resistance accuracy range: 0.5%, 1%
Temperature coefficient: ± 50ppm/℃
Material: Manganese Copper Alloy
The selection parameters for MHTC ultra-thin alloy current detection resistor (long electrode, side electrode, wide pad) are as follows:
Volume range: 08051206
Resistance range: 0.001R~0.02R
Rated power range: 0.5W~1W
Resistance accuracy range: 0.5%, 1%
Temperature coefficient: ± 50ppm/℃
Material: Manganese Copper Alloy
Alloy resistors also have automotive grade certified specifications and are mainly used in automotive front-end assembly and related accessory products. Walter alloy resistors also cover products in the cover industry.
Walter's automotive grade alloy resistors also have the following categories, with parameters consistent with those of conventional products, all of which comply with the AEC-Q200 automotive grade certification standard. The tail vertebrae on the model are distinguished, and the tail vertebrae with Auto indicate the automotive grade certification series.
Huade alloy resistor, as the name suggests, its core material is a special alloy. This alloy is usually made by mixing metal elements such as copper, nickel, manganese, etc. in a certain proportion, and through precise smelting and processing technology, it forms a highly uniform and stable resistance material. This alloy material not only has good conductivity, but also maintains stable resistance values in harsh environments such as high temperature, low temperature, and humidity, ensuring the long-term reliable operation of the circuit. Huade alloy resistors also adopt advanced packaging technologies such as thin film packaging, thick film packaging, etc., further improving the high temperature resistance, corrosion resistance, and mechanical strength of the resistors. These packaging technologies not only effectively protect the internal structure of the resistor, but also make it more aesthetically pleasing and easy to install in appearance.
Performance advantages of Huade alloy resistors
The resistance accuracy of Huade alloy resistors is very high, and some products can even achieve an accuracy level of ± 0.01%, such as precision measuring instruments, medical equipment, etc.
The temperature coefficient is an important indicator for measuring the degree of resistance change with temperature. Huade alloy resistors have an extremely low temperature coefficient, and their resistance values can still remain stable, ensuring the normal operation of the circuit.
Due to the use of special alloy materials and advanced packaging technology, Huade alloy resistors have high power carrying capacity. This enables it to operate stably for a long time in high load circuits without damage due to overheating.
The lifespan of Huade alloy resistors far exceeds that of ordinary resistors. In harsh working environments such as high temperature, high humidity, and high corrosion, stable performance can still be maintained, greatly extending the service life of electronic devices.
Application fields of Huade alloy resistors
Automotive electronics can be used in various key components such as sensors, controllers, and actuators, providing strong guarantees for the safety, comfort, and environmental performance of automobiles.
Communication equipment can be used in key devices such as base stations, routers, switches, etc., providing reliable guarantees for the stable transmission of communication signals.
Industrial automation can be used in various automation equipment such as sensors, transmitters, actuators, etc. It provides strong support for precise control and efficient operation of industrial production.
In the field of new energy, it can be used in systems such as solar power generation and wind power generation. Used in key processes such as power management and energy conversion, it provides a reliable guarantee for the efficient utilization of new energy.
Shunhai Technology is the authorized agent of Walter alloy resistor brand manufacturer. Walter alloy resistors mainly consist of ceramic alloys and pure alloys, including long electrode HTE series, four terminal Kelvin resistors HFCL and SFCA series, pure metal alloy resistors MSH series, as well as small volume ultra-thin MSTC series, and the most widely used STE series.
