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Astron LS-3A Linear DC Power Supply

SKU: LS-3ACategories: DC Power Supplies
Brand: Astron
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The Astron LS-3A is a compact and reliable linear power supply, providing a stable 13.8V DC output at 3 Amps. Ideal for powering communication equipment, small electronic devices, and hobbyist projects, it features robust construction and excellent voltage regulation.

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Equipment info

The Astron LS-3A is a robust, solid-state, electronically regulated linear power supply designed for reliable DC power delivery. Its primary function is to provide a stable 13.8V DC output, suitable for a variety of electronic applications, including communication equipment, laboratory instruments, and hobbyist projects. The unit incorporates essential protection features such as fold-back current limiting to safeguard against excessive current and shorted outputs, as well as crowbar over-voltage protection on all models, ensuring the connected equipment is shielded from voltage spikes. The Astron LS-3A is engineered to maintain consistent regulation and low ripple even under conditions of low line input voltage, contributing to the stability and longevity of powered devices. Manufactured in the USA, it is constructed with heavy-duty, high-quality materials to ensure durability and consistent performance.

### Technical Specifications

**Model:** LS-3A

**Manufacturer:** Astron Corporation

**Power Supply Type:** Linear, Regulated

**Output Voltage:**
* Nominal: 13.8V DC
* Adjustable Range: 22-32V DC (Internally Adjustable)
* Regulation: ±0.05 Volts

**Output Current:**
* Continuous Duty: 3 Amps
* Intermittent/Peak Current (ICS): 4 Amps

**Input Voltage:**
* Standard: 105-125 VAC
* Frequency: 60 Hz

**Electrical Characteristics:**
* Ripple Voltage: Less than 5mV peak to peak (full load and low line) (Note: One source indicates <6mV) * Load Regulation: 0.08% from 0 to Full Continuous Load**Protection Features:** * Fold-back Current Limiting: Protects power supply from excessive current and continuous shorted output * Crowbar Over-Voltage Protection: On all models (Note: One source states "except RS-3L, RS-4L and RS-5L")**Interfaces:** * Power Terminals: Banana * DC Output Terminals: Located on the rear panel**Physical Characteristics:** * Dimensions (H x W x D): 3¾" x 6½" x 9" (Note: One source lists as 3" x 6½" x 9", another as 3.75" x 6.500" x 9.000") * Weight: Approximately 9 lbs (Note: One source lists as 9.45 lbs) * Cooling Type: Heat sink (No fan cooling for this model) * Construction: Heavy-duty**Internal Components:** * Fuse: GMC 2A (Note: One source lists as Chassis mounted fuse)**Operational Environment:** * Maintains regulation and low ripple at low line input voltage**Manufacturing:** * Made in USA### Why Choose Aumictech for Astron LS-3A?At Aumictech, we specialize in supplying high-end power supply equipment. Whether you need reliable 13.8V DC output for critical communication systems, stable power for laboratory instrumentation, or consistent performance for complex electronic projects, our team ensures the Astron LS-3A delivers maximum performance for your application.

MPN

LS-3A

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Product Condition & Availability
Astron LS-3A Linear DC Power Supply is in excellent working condition and has been thoroughly tested for performance and reliability. We offer both new and professionally refurbished options, depending on availability and customer preference.

 

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Beyond individual products, Aumictech provides end-to-end solutions for manufacturing line deployment and test station setup. Our team can assist with system integration, configuration, and equipment selection tailored to your production requirements.

Trusted Industry Experience
With over a decade of experience, Aumictech is a recognized leader in RF and optical test equipment sales and services. All units are supported by our in-house calibration and repair facility based in Downingtown, PA, ensuring technical reliability and long-term value.

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We’re committed to exceptional customer service, offering a 15-day return or replacement (ROR) policy for peace of mind. Our team is always available to assist with pre- and post-sale support.

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We offer rapid global shipping through FedEx, UPS, and DHL, with most orders dispatched within 1–3 business days. Multiple secure payment options are available, including PayPal, ACH, wire transfers, and major credit cards.

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