DST3-20B13

Overview

The DST3-20B13 is a laminated core power transformer manufactured by Pulse Electronics. It features a split bobbin plug-in package designed for through-hole mounting. The primary winding supports parallel connection at 115V or series connection at 230V. The secondary configuration offers parallel output at 10V with 240mA current rating, or series output at 20V with 120mA current rating. The unit has a power capacity of 2.4VA and provides 2500Vrms isolation voltage between windings.

Feature Summary

• Laminated core construction for efficient magnetic flux transfer
• Split bobbin design facilitating secure winding separation
• Through-hole termination method for robust PCB integration
• Configurable primary and secondary voltage connections

Applications

• General purpose AC to DC power supply circuits
• Industrial control system power distribution
• Consumer electronics internal power conversion

Procurement Notes

Verify the specific datasheet version before ordering, as component specifications may be updated. Confirm that the 8-terminal pin configuration matches your board layout requirements. Ensure the 2.4VA power rating meets the load demands of your application. Check for any obsolete status notifications from the manufacturer prior to finalizing procurement plans.

Selection Notes

Select this component when a 2.4VA isolated transformer is required for low-power applications. The dual-voltage primary capability allows compatibility with both 115V and 230V mains inputs. The secondary flexibility supports different voltage regulation needs. Ensure the through-hole footprint aligns with the existing PCB design constraints.

Part Context

This part belongs to the Split Bobbin Plug-In series from Pulse Electronics. It is categorized under power transformers within the broader audio and signal converter product line. The series is characterized by standard laminated core technology and through-hole assembly methods suitable for general electronic equipment manufacturing.

Replacement Considerations

The ST3-20B13 is listed as a related variant in distributor catalogs. Verify electrical equivalence and physical dimensions before substitution. Note that the DST3-20B13 lifecycle status is marked as obsolete in some regions.