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10 Pack XR-103 LM337 Adjustable Dual Polarity Power Supply Module, Positive & Negative DC Adjustable Voltage Regulator Board
- Package includes 10 pieces XR-103 regulator modules with LM337 core chip for batch circuit production
- Supports simultaneous positive and negative adjustable DC output, meets dual power supply experimental needs
- Smooth continuous voltage adjustment via potentiometer, stable low ripple output for analog circuits
- Built-in overcurrent, short-circuit and heat protection circuit to avoid module burnout
- Mini PCB layout with pin headers, easy wiring for MCU, audio amplifiers and electronic lab debugging
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The XR-103 adjustable power supply board takes LM337 as the core negative voltage regulating chip, paired with matched positive voltage circuit to realize dual positive & negative adjustable regulated power supply output. It is widely used in analog circuit experiments, audio power amplifiers, sensor signal conditioning and single-chip microcontroller peripheral power supply.
With high linear voltage regulation performance, the module delivers low-noise, stable DC voltage without obvious fluctuation under light or heavy load. The on-board precision potentiometer allows users to freely adjust the output voltage range according to experimental requirements. Integrated multi-protection circuit automatically limits current and cuts off output during short-circuit or overload to protect the module and connected experimental equipment.
Standard pin header terminals support quick connection with breadboards, development boards and experimental racks. This 10-piece bulk pack is suitable for electronic teaching laboratories, DIY maker projects, small equipment assembly and circuit maintenance work, a cost-effective dual polarity power supply accessory for engineers and students.
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- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by TechCore Supply Return Policy
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