81121-2

The Hamsar 81121-2 B65 Voltage Regulator Module, also known as 82-39747-000, is a versatile and reliable electronic component designed for regulating voltage in various applications. This voltage regulator is ideal for powering microcontrollers, sensors, and other low-voltage devices.

The module features a compact and robust design, making it suitable for both industrial and laboratory environments. It is housed in a plastic case, which not only protects the internal components but also ensures efficient heat dissipation. The dimensions of the module are 2.6 inches in length, 1.6 inches in width, and 0.6 inches in height, making it compact enough to be integrated into small projects while still offering sufficient power output.

The Hamsar 81121-2 B65 Voltage Regulator Module is adjustable, allowing you to set the output voltage within a range of 3.3V to 5.5V. This adjustment can be achieved by using the voltage regulator's adjustment potentiometer or by setting the appropriate resistor value. The module accepts an input voltage range of 7V to 35V, making it capable of handling a wide range of power sources.

One of the key advantages of this voltage regulator is its high efficiency, which is achieved through the use of a low-dropout (LDO) linear regulator. This means that the module consumes minimal power when the output voltage is equal to the input voltage. Furthermore, the module's low quiescent current ensures that it doesn't draw unnecessary power when not in use.

The Hamsar 81121-2 B65 Voltage Regulator Module also offers overvoltage protection, which safeguards the connected components from damage caused by voltage spikes. This protection is activated when the input voltage exceeds the maximum allowable limit, preventing the module from outputting excessive voltage.

The module comes with various mounting options, including through-hole and surface mounting, providing flexibility in terms of how it can be integrated into your project. Additionally, it includes a status LED, which indicates the power status of the module.

In summary, the Hamsar 81121-2 B65 Voltage Regulator Module is a high-performance and adaptable component for regulating voltage in various applications. Its compact design, adjustability, high efficiency, overvoltage protection, and versatile mounting options make it an ideal choice for powering microcontrollers, sensors, and other low-voltage devices.

Pros and Cons of buying a Hamsar 81121-2 B65 Voltage Regulator Module (82-39747-000)

The Hamsar 81121-2 B65 Voltage Regulator Module (82-39747-000) is a popular choice for those seeking a reliable and efficient voltage regulator. In this analysis, we will explore both the advantages and disadvantages of investing in this device.

1. High Reliability: This voltage regulator is known for its robustness and reliability, making it a popular choice among professionals and hobbyists alike.

2. Wide Input Voltage Range: The Hamsar 81121-2 B65 can handle a wide range of input voltages, which makes it versatile and adaptable to various applications.

3. Compact Size: Its compact size makes it easy to install and use in various projects without taking up too much space.

4. High Efficiency: With a high efficiency rating, this voltage regulator reduces heat generation and saves energy, which can lead to cost savings and a longer lifespan.

5. Regulated Output Voltage: The regulated output voltage ensures that the connected devices receive a consistent and stable power supply, preventing voltage fluctuations that could damage sensitive components.

1. Limited Current Capacity: Depending on the specific application, the Hamsar 81121-2 B65 may not be able to handle high current loads.

2. Potential for Noise: Some users have reported noise issues with this voltage regulator, which could potentially affect the performance of sensitive devices.

3. Price: Compared to some other voltage regulators on the market, the Hamsar 81121-2 B65 can be more expensive.

The Hamsar 81121-2 B65 Voltage Regulator Module (82-39747-000) offers several advantages, including high reliability, wide input voltage range, compact size, high efficiency, and regulated output voltage. However, it has some drawbacks, such as limited current capacity, potential noise issues, and a higher price point.

Based on this analysis, if your project requires a reliable and stable voltage regulator with a wide input voltage range and high efficiency, the Hamsar 81121-2 B65 could be an excellent investment. However, if you need to handle high current loads, you may want to consider other options with greater current capacity. Ultimately, the decision depends on the specific requirements of your project.

For projects that require a robust and versatile voltage regulator, the Hamsar 81121-2 B65 is a solid choice. Its high reliability, wide input voltage range, compact size, and high efficiency make it an attractive option for professionals and hobbyists alike. However, if your project involves high current loads, you may want to explore other voltage regulators that offer greater current capacity.

Details:

Comes as pictured. B65 Hamsar 81121-2 Rev 2 voltage regulator module. New is in the original packaging. Please verify the part number is correct for your application.

specifications perfoelectric:

• for models: B65, Rev
• brand: Hamsar
• mpn: 81121-2
• part type: Voltage Regulator Module
• performance part: Yes

seller perfoelectric:

• city: spokane, washington
• rating: 100.0%
• # Reviews: 1142

payments perfoelectric:

• other
• wallet: paypal
• credit card: diners-club

offer perfoelectric:

• started: august 13, 2025
• sold #: 15
• prices: $26.98–$95.00
• item condition:
  • New other (see details)
  • New
• in stock #: 4
• availability: in stock
• options: ship-to-home

returns perfoelectric:

• paid by: buyer
• time: 30 days
• policy: returns accepted

shipping perfoelectric:

• class: standard
• carrier: usps, ups
• transit: 3-8 days
• type: calculated
• service: usps ground advantage, ups ground

general perfoelectric:

• category: Auto Parts > Electrical Components

Also Viewed:

• 70987-280206: MODULE, Hamsar
• 811312: LED TURN CONTROL DRIVER MODULE SIGNAL, Hamsar