DST-2-12

Overview

The DST-2-12 is a Class 2 laminated power transformer from the Split/Tran DST series, designed for printed circuit board mounting. It features dual primary windings rated for 115 VAC and 230 VAC parallel operation, and dual secondary windings providing 6.3 V CT / 12.6 V AC output. The unit has a power rating of 1.1 VA with secondary current ratings of 90 mA (series) and 180 mA (parallel). It utilizes through-hole solder pin termination and operates at 50 Hz or 60 Hz.

Feature Summary

• Dual primary winding configuration supports flexible input voltage selection between 115 VAC and 230 VAC.
• Dual secondary winding design enables versatile output configurations including center-tapped or parallel connections.
• Class 2 safety classification ensures compliance with standard isolation requirements for low-voltage applications.

Applications

• Low-power electronic equipment requiring isolated AC power supplies
• Control circuits utilizing Class 2 power sources
• Industrial control panels needing compact laminated transformers

Procurement Notes

Verify that the specific order matches the manufacturer part number DST-2-12 to ensure correct electrical characteristics. Confirm RoHS compliance status as indicated in official documentation before procurement. Ensure the receiving facility accepts through-hole components with solder pin terminations. Validate that the application environment supports the specified operating frequency range of 50 Hz or 60 Hz.

Selection Notes

Select this component when a 1.1 VA power rating is sufficient for the load requirements. Choose this model if dual primary flexibility for 115 VAC or 230 VAC inputs is necessary. Consider this transformer for designs requiring a center-tapped secondary output or parallel secondary capability. Ensure the PCB layout accommodates the through-hole mounting style and physical dimensions.

Part Context

This component belongs to the Split/Tran DST series of laminated core power transformers manufactured by Bel Signal Transformer. The series is characterized by split bobbin construction which enhances isolation performance. These transformers are generally used in applications requiring reliable galvanic isolation between primary and secondary circuits in compact form factors.

Replacement Considerations

Direct replacement requires verifying identical electrical parameters: 1.1 VA rating, 115/230 VAC primary, 6.3/12.6 VCT secondary, and through-hole mounting. Check physical footprint compatibility. Consult official datasheets for cross-reference lists provided by the manufacturer.