LP-88-65

Power Transformers Overview

The LP-88-65 is a semi-toroidal power transformer manufactured by Signal Transformer. It features dual primary windings rated for 115V and 230V AC, configured in parallel. The secondary output provides two distinct voltage taps: 44V at 130mA in parallel configuration, and 88V at 65mA in series configuration. With a total power rating of 6VA, the unit utilizes through-hole mounting with PC pin termination. Key electrical specifications include a frequency range of 50/60Hz, Class B insulation (130ºC), and a dielectric strength of 1500Vrms.

Power Transformers Feature Summary

• Semi-toroidal laminated core construction for efficient magnetic coupling
• Dual primary winding design supporting both 115V and 230V input voltages
• Flexible secondary output options allowing parallel or series connection modes
• Through-hole mounting style suitable for standard PCB assembly processes

Power Transformers Applications

• Low to medium power electronic equipment requiring isolated AC power
• Industrial control systems utilizing 50/60Hz mains frequency
• Audio amplifiers and signal processing circuits needing specific secondary voltage taps
• General purpose power supplies within Class B temperature limit environments

Power Transformers Procurement Notes

Verify that the required secondary configuration matches the application's voltage and current needs, as the part offers distinct parallel and series outputs. Confirm that the through-hole mounting dimensions and PC pin spacing are compatible with the target PCB layout. Ensure the operating environment does not exceed the Class B insulation temperature rating of 130ºC. Check for any specific regulatory compliance requirements regarding RoHS status before finalizing procurement orders.

Power Transformers Selection Notes

Select this component when a compact semi-toroidal form factor is required for 6VA applications. Choose the LP-88-65 if the system requires flexibility between 44V/130mA and 88V/65mA outputs from a single transformer unit. Consider this part for designs where through-hole mounting is preferred over surface mount alternatives. Ensure the primary voltage source aligns with the 115V/230V parallel input specification.

Power Transformers Part Context

The LP-88-65 belongs to the Signal Transformer product line of semi-toroidal power transformers. These units typically offer power ratings ranging from 2VA to 48VA across various configurations. The series is designed for general-purpose isolation tasks, providing reliable performance in industrial and commercial electronics. The specific model represents a mid-range power option within the broader family of available transformer solutions.

Power Transformers Replacement Considerations

Publicly confirmed substitute part numbers include the Hammond Manufacturing 229A88 and the Signal Transformer LP-88-65 itself listed under different distributor codes. Verify mechanical dimensions and pinout compatibility when substituting with the 229A88 model to ensure proper integration into existing assemblies.