DST-5-24

Overview

The Signal Transformer DST-5-24 is a laminated core power transformer designed for through-hole mounting. It features dual primary windings rated for 115V and 230V parallel operation, providing versatile input compatibility. The secondary configuration offers dual outputs: a parallel connection delivering 12V at 1A, and a series connection providing 24V at 500mA. With a maximum power rating of 12VA, this component utilizes a split bobbin design to ensure robust electrical isolation. It operates at standard frequencies of 50Hz or 60Hz and includes an isolation voltage rating of 2500Vrms, making it suitable for Class 2 applications requiring reliable voltage transformation.

Feature Summary

• Dual primary winding configuration supports both 115V and 230V AC inputs in parallel mode.
• Split bobbin construction provides enhanced electrical isolation between windings.
• Dual secondary output options allow flexible selection between 12V parallel or 24V series configurations.
• Laminated core design ensures efficient magnetic coupling for standard 50/60Hz operations.

Applications

• Industrial control systems requiring isolated low-voltage DC power
• Servo drive circuits needing specific voltage taps
• Class 2 compliant electronic equipment power supplies
• General-purpose AC to DC conversion modules

Procurement Notes

Verify the exact secondary current requirements against the datasheet specifications before ordering. Confirm that the 12V parallel (1A) or 24V series (500mA) configuration aligns with the target circuit design. Ensure the PCB layout accommodates the through-hole pin spacing and physical dimensions of the laminated core assembly. Check for RoHS compliance status if environmental regulations apply to the final product.

Selection Notes

Select the DST-5-24 when a 12VA capacity is required with flexible secondary voltage options. This model is appropriate for designs needing simultaneous access to 12V and 24V rails from a single transformer unit. Consider the physical size constraints as the laminated core requires adequate clearance. Verify that the operating frequency matches the system's 50Hz or 60Hz supply to maintain performance efficiency.

Part Context

The DST-5-24 belongs to the Split/Tran™ Class 2 Split Bobbin Transformers series by Signal Transformer. This family emphasizes safety and isolation through specialized bobbin designs. The part is manufactured under the Bel Fuse brand portfolio, reflecting established industrial transformer standards. It serves as a critical component in power distribution networks where compact size and high isolation are prioritized over high-power density.

Replacement Considerations

Public confirmed substitute part numbers include 3FD-324 by Tamura and FS24-100 by Triad Magnetics. These alternatives may differ in physical dimensions or specific electrical tolerances. Validate pin compatibility and thermal characteristics before substituting. Cross-reference datasheets to ensure the replacement meets the same Class 2 safety and isolation requirements.