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DST-2-24
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Product Detailed Parameters
- Description：PWR XFMR LAMINATED 1.1VA TH
- Series：DST
- Mfr：Signal Transformer
- Package：Box
- Type：Laminated Core
- Voltage - Primary：115V, 230V
- Voltage - Secondary (Full Load)：Parallel 12V, Series 24V
- Current - Output (Max)：Parallel 90mA, Series 45mA
- Primary Winding(s)：Dual
- Secondary Winding(s)：Dual
- Center Tap：No
- Power - Max：1.1VA
- Mounting Type：Through Hole
- Termination Style：PC Pin
- Size / Dimension：34.90mm L x 28.60mm W
- Height - Seated (Max)：24.60mm
- Voltage - Isolation：2500Vrms
- Weight：0.17 lb (77.11 g)
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Overview
The DST-2-24 is a laminated core power transformer from the ST/DST series, designed for through-hole mounting. It features dual primary windings rated for 115V and 230V operation in parallel configuration. The secondary winding provides split voltage outputs of 12V and 24V with center taps, supporting currents of 90mA and 45mA respectively. With a power rating of 1.1VA, it operates at 50/60 Hz frequencies and includes 2500Vrms isolation. The component utilizes PC pin termination and measures 34.90mm in length, 28.60mm in width, and 24.60mm in height.
Feature Summary
- Split bobbin construction for enhanced electrical isolation
- Dual primary winding capability for flexible input voltage selection
- Center-tapped secondary winding design for rectifier applications
Applications
- Industrial control circuits requiring isolated power
- Rectifier power supply modules
- General purpose electronic device power conversion
Procurement Notes
Verify the manufacturer part number against official Signal Transformer documentation to ensure authenticity. Confirm that the specific variant matches the required 1.1VA rating and terminal style. Check RoHS compliance status via the manufacturer's current datasheet. Ensure the package type corresponds to through-hole PC pins as specified. Validate lead times directly with authorized distributors.
Selection Notes
Select this component when a low-power, isolated transformer is needed for board-mounted applications. The dual primary winding allows compatibility with both 115V and 230V AC inputs without rewiring. The split secondary output is suitable for full-wave rectification circuits. Consider the physical dimensions and weight constraints for the enclosure design. Ensure the operating frequency matches the system requirement of 50 or 60 Hz.
Part Context
This transformer belongs to the ST/DST series, which features split bobbin technology. This design separates the primary and secondary windings on different bobbins to improve safety and isolation characteristics. The series is categorized under industrial control transformers and power transformers. It is manufactured by Signal Transformer, a brand associated with Bel Fuse.
Replacement Considerations
Direct substitutes within the same series include DST-2-10 and DST-2-28, which share similar physical footprints and construction but differ in voltage ratings. Verify that any replacement maintains the 1.1VA power rating and through-hole mounting requirements.
