DST-3-20

$9.34

Description：PWR XFMR LAMINATED 2.4VA TH
Series：DST
Mfr：Signal Transformer
Package：Box

SKU:037654387369 Category: Power Transformers Brand: Signal Transformer

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Product introduction

DST-3-20 is listed in the Power Transformers range at ChipApex. The manufacturer field lists Signal Transformer. Its product description is PWR XFMR LAMINATED 2.4VA TH. Review the specifications below when checking this part for your BOM.

Power Transformers specifications for DST-3-20

Description：PWR XFMR LAMINATED 2.4VA TH
Series：DST
Mfr：Signal Transformer
Package：Box
Type：Laminated Core
Voltage - Primary：115V, 230V
Voltage - Secondary (Full Load)：Parallel 10V, Series 20V
Current - Output (Max)：Parallel 240mA, Series 120mA
Primary Winding(s)：Dual
Secondary Winding(s)：Dual
Center Tap：No
Power - Max：2.4VA
Mounting Type：Through Hole
Termination Style：PC Pin
Size / Dimension：34.90mm L x 28.60mm W
Height - Seated (Max)：30.80mm
Voltage - Isolation：2500Vrms
Weight：0.25 lb (113.4 g)

Power Transformers datasheet and documents for DST-3-20

DST-3-20

Power Transformers Overview

The Signal Transformer DST-3-20 is a laminated core power transformer designed for board mount applications. It operates at 50 Hz or 60 Hz with dual primary windings rated for 115 VAC and 230 VAC. The secondary configuration provides parallel 10 V and series 20 V outputs, supporting maximum currents of 240 mA in parallel mode and 120 mA in series mode. With a power rating of 2.4 VA, it utilizes through-hole solder pin termination. The unit measures 34.90 mm in length, 28.60 mm in width, and has a maximum installation height of 30.80 mm.

Power Transformers Feature Summary

Dual primary winding capability for flexible 115 VAC or 230 VAC input selection
Split bobbin construction providing Class 2 isolation safety compliance
Through-hole mounting design with solder pin termination for PCB integration

Power Transformers Applications

Low-power AC to DC conversion circuits
Industrial control panel power supplies
Consumer electronics internal power distribution

Power Transformers Procurement Notes

Verify the specific datasheet revision and RoHS compliance status prior to ordering, as manufacturing relocation notices may affect production details. Confirm that the required secondary current ratings align with the parallel or series operational modes defined in the official specifications. Ensure the footprint matches the standard through-hole dimensions provided in the mechanical drawings.

Power Transformers Selection Notes

Select this component when a compact 2.4 VA transformer is required for Class 2 isolated power supplies. The dual primary winding allows compatibility with both North American and international voltage standards without changing hardware. Consider the physical dimensions and through-hole requirements during PCB layout to ensure adequate clearance and mechanical stability.

Power Transformers Part Context

This part belongs to the Split/Tran™ DST series, which features split bobbin transformers designed for enhanced safety isolation. The series offers various power ratings and voltage configurations, maintaining consistent laminated core construction and through-hole mounting characteristics across different models within the family.