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Product Detailed Parameters
- Description：Tools/Equipment/Hardware
- Series：161
- Mfr：Hammond Manufacturing
- Package：Bulk
- Type：-
- Voltage - Primary：115V
- Voltage - Secondary (Full Load)：Parallel 14V, Series 28V
- Current - Output (Max)：Parallel 60mA, Series 30mA
- Primary Winding(s)：Single
- Secondary Winding(s)：Dual
- Center Tap：No
- Power - Max：1VA
- Mounting Type：Through Hole
- Termination Style：PC Pin
- Size / Dimension：-
- Height - Seated (Max)：21.08mm
- Voltage - Isolation：2000Vrms
- Weight：-
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Overview
The Hammond Manufacturing 161D28-BULK is a laminated core power transformer designed for through-hole mounting. It features a single primary winding rated at 115V and a dual secondary configuration providing parallel 14V and series 28V outputs. The unit delivers a maximum power of 1VA with current ratings of 60mA in parallel and 30mA in series. Key electrical specifications include a 2000Vrms isolation voltage. Physical dimensions are 25.40mm in length, 35.05mm in width, and a maximum installation height of 21.08mm.
Feature Summary
- Laminated core construction for efficient power transformation
- Dual secondary windings supporting parallel or series connection modes
- High isolation voltage rating for enhanced safety
- Through-hole PC pin termination for PCB integration
Applications
- Low voltage PCB mount applications
- General purpose power supply circuits
- Industrial control equipment requiring isolated DC rails
Procurement Notes
Verify the specific suffix against official datasheets to confirm packaging variations. Ensure the procurement channel provides original manufacturer documentation. Cross-reference the part number with authorized distributors to guarantee authenticity. Confirm that the bulk packaging aligns with assembly requirements without compromising component integrity during handling.
Selection Notes
Select this component when a compact 1VA transformer with dual output options is required. The 115V primary input suits standard line voltage applications. Consider the physical footprint and through-hole mounting style for board layout compatibility. Verify that the 2000Vrms isolation meets system safety standards.
Part Context
This model belongs to the Hammond 161 series of low voltage PCB mount transformers. The series offers various voltage and power configurations for general electronic applications. The 161D28 variant specifically addresses needs for split-rail or dual-voltage generation from a single primary source using its center-tapped secondary design.
Replacement Considerations
Consult official Hammond Manufacturing substitution guides for verified equivalents. Ensure any replacement matches the 1VA power rating, 115V primary, and 28V CT secondary specifications. Verify dimensional compatibility for through-hole mounting.
