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Adjustable 0.8-20V, 2A buck converter for battery and solar projects. Specs, wiring, accessories and local stock notes for South African makers.
Set voltages for microcontrollers, 5V USB rails, or custom battery rails.
Suitable for small loads; add heatsinking for sustained currents.
Check Communica branches for availability, VAT invoices and pickup.
The power-battery-solar-bdd-dcdc-buck-module-08-20v-2a is an adjustable step-down (buck) converter commonly used to regulate battery and solar array voltages to stable loads. Typical modules accept a higher input (e.g., 8-22V nominal) and provide a user-set output anywhere between about 0.8V and 20V with up to 2A continuous current. This makes them useful for powering microcontrollers, charging small 5V devices, or making dedicated rails in prototyping and off-grid systems.
When evaluating a 0.8-20V 2A buck module, check these specs on the datasheet or product page to ensure it fits your battery or solar application:
| Spec | Typical Value | Notes |
|---|---|---|
| Input Voltage | 8-22V (check product) | Matches common 12V lead-acid and 16-24V solar arrays |
| Output Voltage | 0.8-20V adj. | Use potentiometer or fixed resistor pair for set points |
| Max Continuous Current | 2A | Note thermal limits and duty cycle |
| Efficiency | ~85-95% | Higher at moderate load and small VIN-VOUT differential |
In South African maker and educational settings, these modules are commonly used to step down 12V car or battery systems to 5V for Raspberry Pi/Arduino, or to create a regulated rail from a 24V solar input. Check Communica's Power and Charging categories and the Samrand stock page for availability and lead times. For procurement, ask for VAT invoices and branch collection if you need immediate pickup.
If you're ready to evaluate options, you can Shop Now, Compare Specs, Check Stock in Samrand, or Request a Quote through Communica's product listings and branch services.
Match the module to your system by following these steps:
Ohm's Law and power dissipation help size components. Example: powering a 5V load drawing 1.5A from a 12V battery using the adjustable-dcdc-buck-converter-for-electronics-projects module.
Load power: Pout = Vout x Iout = 5V x 1.5A = 7.5W. With 90% efficiency, input power = Pout / 0.9 = 8.33W. Input current = Pin / Vin = 8.33W / 12V = 0.694A. Module dissipation ~ Pin - Pout = 0.83W (manageable with small heatsink).
Communica stocks power modules, connectors, fuses, and test tools across categories. For education and lab purchases, request VAT invoices and check branch pickup at Samrand, Pretoria CBD or Cape Town. Lead times vary by brand and SKU; for bulk or repeat orders, buy-dcdc-buck-modules-online-in-south-africa to compare options and Request a Quote to get formal pricing in ZAR and delivery estimates.
Free shipping for orders over ZAR 1,000.00.
Get a full refund if you had the product for less than 7 days.
Nationwide delivery within 2 - 4 working days.
Communica supplies semiconductors and electronic components to industries such as automotive, electrical, automation, mining, and education.
Disclaimer: This content is for educational purposes only. Product availability, pricing, and specifications are subject to change. Always verify current details on the retailer's website before making a purchase. We may earn affiliate commissions from qualifying purchases.
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He's polite, good with people and made me feel free to talk.. all in all he's helpful
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Excellent service so far
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Quick quality customer service.
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Verified customerNicolene
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I got the most pleasant service from Sydney and Windie
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Verified customerNicole was very helpfull and friendly.
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