RS PRO Toroidal Transformer 2 x 115 V AC Primary, 2 x 15 V Secondary, 25 VA, Dual Output, UL, RoHS, 124-3876

The RS PRO 124-3876 is a toroidal transformer featuring dual 115 V AC primaries and dual 15 V secondary windings, delivering a 25 VA power rating to meet the needs of industrial, electronic, and laboratory equipment. Engineered for efficiency, this component supports flexible primary connections (series or parallel) and delivers up to 832 mA on the secondary side.

Designed for low iron loss and minimal induced noise, this transformer is ideal for sensitive electronic applications where noise and efficiency are critical. Its toroidal (ring-shaped) core reduces electromagnetic interference, making it an excellent choice for audio, measurement, and control circuits used in industrial and laboratory environments.

With certifications to UL and RoHS standards, the transformer ensures both safety and compliance with modern environmental directives. The potted toroid center and encapsulated body enhance durability, allowing reliable performance and extended service life even in demanding settings.

The RS PRO 124-3876 features a compact footprint (height: 37.5 mm), making it well suited for PCB mounting in space-constrained boards and assemblies. Its ambient operating temperature is rated up to 60°C, ensuring stability across various applications.

Efficient toroidal design for low weight, low profile, and minimal magnetic stray field.

Supports a maximum operating frequency of 50 Hz and withstands high separation voltages (test voltage primary to secondary: 4.0 kV), providing robust protection for connected devices.

Through-hole mounting simplifies system integration in PCB manufacturing and electronics prototyping. Encapsulated construction and potted center for safety, mechanical integrity, and electrical insulation. Not supplied with fixing screws for mounting; ensure compatibility with existing hardware.

Typical industrial applications include power supply modules, industrial control systems, laboratory test equipment, medical devices (where applicable by certification), and sensitive measurement instruments. It is also suitable for commercial electronic assemblies and manufacturing environments where stability, safety, and compact size are valued.

Set your project up for reliable power management with the RS PRO 124-3876 Toroidal Transformer - explore more electronic power components in the EnvMart Transformers & Transformer Parts category or by browsing RS PRO’s extensive range.