DPC-120-35

Overview

The Signal Transformer DPC-120-35 is a miniature low power laminated core transformer designed for printed circuit board mounting. It features a dual primary voltage rating of 115 VAC and 230 VAC, configurable via parallel or series connections. The secondary output provides 60 VCT at 70 mA or 120 VCT at 35 mA. Operating within a frequency range of 50 Hz to 500 Hz, this component utilizes through-hole termination with quick connect terminals. Its physical dimensions are approximately 41.3 mm in length, 29.6 mm in width, and 34.92 mm in height, supporting a power rating of 4.4 VA.

Feature Summary

• Dual primary voltage configuration allowing flexibility for 115 VAC or 230 VAC input systems
• Compact laminated core design optimized for space-constrained printed circuit board applications
• Versatile secondary output options providing either 60 VCT or 120 VCT depending on current requirements

Applications

• Industrial control panels requiring isolated low voltage power supplies
• Electronic instrumentation utilizing standard AC line frequencies
• General purpose equipment needing compact board-mount isolation transformers

Procurement Notes

Verify the specific pinout configuration and terminal type against your PCB layout before ordering. Confirm that the operating environment temperature falls within the component's rated limits. Ensure the load current does not exceed the specified secondary ratings to prevent overheating. Check for any specific regulatory compliance markings required for your target market.

Selection Notes

Choose this model when a small form factor is critical for assembly density. Select the DPC-120-35 if your design requires operation across both 50 Hz and 60 Hz mains frequencies. Consider this part for applications where a single transformer must support multiple secondary voltage configurations through different winding connections.

Part Context

This component belongs to the DPC series of miniature low power transformers manufactured by Signal Transformer, now part of Bel Fuse. The series is characterized by its laminated core construction and suitability for through-hole mounting on printed circuit boards. These transformers are engineered for reliability in industrial and commercial electronic environments.

Replacement Considerations

Direct replacements should match the 4.4 VA power rating and similar footprint dimensions. Verify that substitute parts support the same 115/230 VAC primary inputs and offer compatible 60 VCT or 120 VCT secondary outputs. Ensure the replacement maintains the through-hole mounting style and quick connect terminal interface.