RS PRO 2 x 12 V AC 2 Output PCB Transformer, 230 V AC Primary, 2.3 VA, Independent Secondary, IEC/BS/EN 61558-1, 121-3829

RS PRO model 121-3829 is a high-quality PCB transformer engineered for reliable low-voltage power conversion in electronic circuits. Featuring dual 12 V AC secondary outputs and a single 230 V AC primary winding, this transformer is ideal for applications requiring isolated or combined secondary voltage configurations.

With a power rating of 2.3 VA, the transformer is optimized for use on printed circuit boards in embedded, control, and signal processing equipment. Its independent secondary windings enable flexible wiring arrangements, either in series or parallel, to achieve various voltage and current outputs as needed during PCB assembly.

The RS PRO PCB Transformer boasts a space-efficient design, with compact dimensions of 32.5 mm length, 27.5 mm width, and 29.5 mm depth. Weighing in at 440 g, it is easy to integrate into PCB layouts where both size and reliability matter.

Safety is assured with an isolation voltage of 4000 Vrms, making it suitable for control panels, measuring devices, power supplies, and other sensitive electronics requiring robust isolation. The transformer supports an operational frequency range of 50 - 60 Hz and is capable of functioning in environments with temperatures up to 130°C.

RS PRO transformers are 100% electric and flash tested, providing high efficiency and low temperature rise. The double section bobbin construction results in low interwinding capacity, minimizing radiated noise and ensuring clean power delivery for precision electronics.

These transformers comply with international standards including CE, RoHS, IEC/BS/EN 61558-1, AS/NZS 61558.1, and AS/NZS 61558.2.6, making them suitable for industrial, laboratory, automation, and commercial electronic applications.

Common uses include signal conditioning, low-voltage power supplies, instrumentation systems, and PCB-based control modules across industrial and laboratory environments. Dual 12 V AC secondary outputs for versatile electronic applications.

230 V AC single primary winding ensures compatibility with standard mains supply. Offers 2.3 VA power rating suitable for PCB integration and low voltage requirements. Features independent secondary windings, supporting parallel or series connections.

Compact form factor with dimensions 32.5 mm x 27.5 mm x 29.5 mm. Isolation voltage rated at 4000 Vrms for enhanced safety and reliability. Designed for PCB mounting, facilitating efficient installation. Operates within 50 - 60 Hz frequency range and up to 130°C maximum temperature.

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