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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 17V, Series 34V
- Current - Output (Max)：Parallel 50mA, Series 25mA
- 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：0.12 lb (54.43 g)
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Overview
The Hammond Manufacturing 161D34 is a low voltage power transformer designed for PCB mounting. It features a single primary winding rated at 115 VAC and a dual secondary winding configuration providing 34 VAC center-tapped output. The unit has a power rating of 1 VA, with a secondary current capacity of 25 mA. It utilizes through-hole solder pin termination for secure board integration. The transformer operates at a frequency of 60 Hz and supports a maximum operating temperature of +130 C.
Feature Summary
- Low voltage PCB mount design for direct circuit board integration
- Dual secondary winding with center tap capability
- Through-hole solder pin termination style
Applications
- Low power electronic control circuits
- Signal processing equipment requiring isolated power
- Industrial control panels with space constraints
Procurement Notes
Verify the specific secondary current rating of 25 mA against application requirements to ensure adequate power delivery. Confirm that the 1 VA power rating aligns with the load demands of the target circuit. Ensure the through-hole footprint matches the PCB layout specifications. Check RoHS compliance status if environmental regulations apply to the final assembly.
Selection Notes
Select this component when a compact, low-power isolation solution is required for 115 VAC input systems. The 161D34 is suitable for applications where minimal board space is available and precise low-current DC supply generation via rectification is needed. Consider thermal management capabilities up to +130 C for high-temperature environments.
Part Context
This transformer belongs to the Hammond 161 series, which specializes in low voltage, board-mount power transformers. The series offers various voltage and current configurations to suit different low-power electronic needs. The 161D34 specifically addresses applications requiring a 34 VAC center-tapped output from a standard 115 VAC source.
Replacement Considerations
Consult official Hammond Manufacturing documentation for verified substitute part numbers within the 161 series or equivalent product lines. Cross-reference electrical parameters such as VA rating, voltage, and physical dimensions before substitution.
