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DST-7-120
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Product Detailed Parameters
- Description：PWR XFMR LAMINATED 36VA TH
- Series：DST
- Mfr：Signal Transformer
- Package：Bulk,Bulk
- Type：Laminated Core
- Voltage - Primary：115V, 230V
- Voltage - Secondary (Full Load)：Parallel 60V, Series 120V
- Current - Output (Max)：Parallel 600mA, Series 300mA
- Primary Winding(s)：Dual
- Secondary Winding(s)：Dual
- Center Tap：No
- Power - Max：36VA
- Mounting Type：Through Hole
- Termination Style：PC Pin
- Size / Dimension：66.70mm L x 55.50mm W
- Height - Seated (Max)：40.40mm
- Voltage - Isolation：2500Vrms
- Weight：1.1 lbs (499 g)
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Overview
The DST-7-120 is a board-mount power transformer from the DST series by Signal Transformer. It features dual primary and dual secondary windings for versatile voltage configuration. The unit supports 115 VAC and 230 VAC primary inputs with a 50/60 Hz operating frequency. Secondary outputs provide 120 VCT at 0.3 A or 60 V at 0.6 A, delivering a 36 VA power rating. Designed for through-hole mounting, it utilizes a laminated core construction within a split bobbin platform.
Feature Summary
- Dual cavity platform design for enhanced isolation and thermal management
- Split bobbin construction supporting flexible primary and secondary wiring configurations
- Laminated core technology ensuring stable performance at standard line frequencies
Applications
- Industrial control panel power supplies
- Test and measurement equipment internal power stages
- General-purpose AC to low-voltage DC conversion systems
Procurement Notes
Verify that the specific order matches the DST-7-120 part number to ensure correct 36 VA rating and 120 VCT secondary specifications. Confirm that the application environment supports through-hole mounting requirements. Check datasheet details for recommended secondary fuse values to ensure proper circuit protection and compliance with safety standards during installation.
Selection Notes
Select this component when a 36 VA board-mount solution is required with dual secondary voltage options. Ensure the PCB layout accommodates the physical dimensions of the DST series package. Verify that the input voltage range aligns with the dual primary winding capabilities for global compatibility in the target system design.
Part Context
The DST-7-120 belongs to the DST series of power transformers manufactured by Signal Transformer. This series utilizes a dual cavity platform architecture designed to improve electrical isolation and thermal dissipation compared to standard single-cavity designs. The model is specifically engineered for board-mount applications requiring robust performance in industrial environments.
Replacement Considerations
The Triad Magnetics FS120-300 is identified as a public substitute option. Note that while both units offer similar power ratings and secondary voltages, physical dimensions and pinout configurations may differ. Validate mechanical fit and electrical parameters before implementation.
