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Product Detailed Parameters
- Description：PWR XFMR LAMINATED 1VA TH
- Series：161
- Mfr：Hammond Manufacturing
- Package：Bulk
- Type：Laminated Core
- Voltage - Primary：115V
- Voltage - Secondary (Full Load)：Parallel 6.3V, Series 12.6V
- Current - Output (Max)：Parallel 140mA, Series 70mA
- Primary Winding(s)：Single
- Secondary Winding(s)：Single, Multiple Taps
- Center Tap：No
- Power - Max：1VA
- Mounting Type：Through Hole
- Termination Style：PC Pin
- Size / Dimension：25.40mm L x 35.05mm W
- Height - Seated (Max)：21.08mm
- Voltage - Isolation：2000Vrms
- Weight：0.13 lb (58.97 g)
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Overview
The Hammond Manufacturing 161D12 is a low voltage power transformer designed for printed circuit board (PCB) mounting. It features a single primary winding rated at 115 VAC and a dual secondary winding configuration providing 12.6 VAC center-tapped output. The unit has a power rating of 1 VA with a secondary current capacity of 70 mA. Constructed with epoxy casting, it utilizes solder pin termination for secure electrical connections. The component operates at 60 Hz and supports through-hole installation within a compact form factor.
Feature Summary
- Epoxy cast construction for environmental protection
- Single primary winding design
- Dual secondary winding with center tap
- Solder pin termination for PCB integration
Applications
- Low voltage control circuits
- Electronic device power supplies
- Industrial control panels
- Signal isolation applications
Procurement Notes
Verify the specific part number suffix to ensure compatibility with required voltage ratings and mounting configurations. Confirm that the epoxy cast construction meets the environmental requirements of the target application. Ensure the PCB layout accommodates the through-hole solder pin spacing and physical dimensions specified in the official datasheet.
Selection Notes
Select this model when a compact, low-power transformer is needed for 115 VAC input systems requiring a 12.6 VAC center-tapped output. Consider the 1 VA power limit and 70 mA current capacity to ensure adequate performance for the load. Verify that the operating temperature range and frequency specifications align with the system's operational parameters.
Part Context
The 161D12 belongs to the 161 series of low voltage transformers from Hammond Manufacturing. This series is characterized by epoxy cast construction and PCB mount designs suitable for various electronic applications. The 161 series provides reliable isolation and voltage transformation in a compact footprint, catering to industries requiring robust power components.
Replacement Considerations
Consult official Hammond Manufacturing documentation for verified substitute part numbers. Cross-reference technical specifications such as voltage ratings, current capacity, and physical dimensions to ensure functional equivalence before replacement.
