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DPC-28-30
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Product Detailed Parameters
- Description：PWR XFMR LAMINATED 1VA TH
- Series：DPC
- Mfr：Signal Transformer
- Package：Bulk
- Type：Laminated Core
- Voltage - Primary：115V, 230V
- Voltage - Secondary (Full Load)：Parallel 14V, Series 28V
- Current - Output (Max)：Parallel 60mA, Series 30mA
- Primary Winding(s)：Dual
- Secondary Winding(s)：Dual
- Center Tap：No
- Power - Max：1VA
- Mounting Type：Through Hole
- Termination Style：PC Pin
- Size / Dimension：25.40mm L x 34.92mm W
- Height - Seated (Max)：21.08mm
- Voltage - Isolation：1500Vrms
- Weight：0.157 lb (71.21 g)
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Overview
The DPC-28-30 is a laminated core power transformer manufactured by Signal Transformer, designed for through-hole mounting. It features dual primary windings supporting 115V and 230V inputs and dual secondary windings providing 14V parallel or 28V series outputs. The unit has a maximum power rating of 1VA, with output currents of 60mA in parallel configuration and 30mA in series. It operates within a frequency range of 50 Hz to 500 Hz and provides 1500Vrms isolation voltage. The physical dimensions are 25.40mm in length, 34.92mm in width, and a maximum installation height of 21.08mm.
Feature Summary
- Laminated core construction optimized for operation between 50 Hz and 500 Hz without output voltage degradation
- Dual primary and dual secondary winding configurations allowing flexible input voltage selection and output voltage scaling
- Through-hole PC pin termination style for secure board integration
Applications
- Low power electronic circuits requiring isolated AC power supply
- Control systems utilizing standard line voltages of 115V or 230V
- Equipment operating at frequencies up to 500 Hz
Procurement Notes
Verify the specific datasheet version and RoHS compliance status prior to ordering, as environmental regulations may update component specifications over time. Confirm that the through-hole footprint matches the target PCB layout dimensions of 25.40mm by 34.92mm. Ensure the 1VA power rating meets the load requirements of the application circuit. Check for any recent product change notices regarding material composition or manufacturing relocation.
Selection Notes
Select this component when a compact, low-power transformer is needed for general-purpose isolation in control applications. The dual-winding design offers flexibility for both 115V and 230V input regions. Consider the 1500Vrms dielectric strength for safety isolation requirements. The laminated core type is suitable for standard frequency ranges up to 500 Hz. Evaluate the thermal performance given the Class B insulation rating if high ambient temperatures are expected.
Part Context
The DPC-28-30 belongs to the DPC series of miniature low power transformers from Signal Transformer. This series is characterized by its PC mount capability and laminated core construction. The part is classified under control power transformers and is intended for applications requiring reliable isolation at low power levels. It is distinct from higher power or different core material variants within the manufacturer's portfolio.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing PCB footprints and electrical parameters before attempting substitution.
