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Product Detailed Parameters
- Description：PWR XFMR LAMINATED 20VA TH
- Series：164
- Mfr：Hammond Manufacturing
- Package：Bulk
- Type：Laminated Core
- Voltage - Primary：115V
- Voltage - Secondary (Full Load)：Parallel 60V, Series 120V
- Current - Output (Max)：Parallel 320mA, Series 160mA
- Primary Winding(s)：Single
- Secondary Winding(s)：Dual
- Center Tap：No
- Power - Max：20VA
- Mounting Type：Through Hole
- Termination Style：PC Pin
- Size / Dimension：57.15mm L x 47.63mm W
- Height - Seated (Max)：36.52mm
- Voltage - Isolation：2500Vrms
- Weight：0.8 lb (362.87 g)
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Overview
The Hammond Manufacturing 164H120 is a low-voltage power transformer designed for PCB mounting. It features a single primary winding rated at 115 VAC and dual secondary windings providing 120 VAC center-tapped configuration. The unit has a power rating of 20 VA with a secondary current rating of 160 mA per leg (320 mA parallel). It utilizes a laminated core construction and supports through-hole installation. The transformer operates at 50/60 Hz frequencies.
Feature Summary
- Low profile design optimized for printed circuit board mounting
- Dual secondary windings allowing series or parallel connection options
- Laminated core construction for efficient power transformation
Applications
- Low voltage power supply circuits
- Industrial control panel electronics
- General purpose AC to AC voltage conversion
Procurement Notes
Verify the specific datasheet version to confirm electrical tolerances and thermal characteristics. Ensure the PCB footprint matches the physical dimensions provided in the official documentation. Confirm that the 115V primary input aligns with the target system's voltage requirements before integration.
Selection Notes
Select this component when a 20 VA capacity is required for low-voltage applications. The 120V CT secondary offers flexibility for bipolar power supplies. Consider the through-hole mounting style and physical envelope size relative to the available board space and mechanical constraints of the assembly.
Part Context
This part belongs to the Hammond 164 series of low-voltage PCB mount transformers. These components are engineered for compact electronic assemblies requiring reliable isolation and voltage step-down capabilities. The series typically includes variants with different power ratings and secondary configurations to suit diverse industrial and commercial equipment needs.
Replacement Considerations
The 164F120 is a documented alternative within the same product line, offering a lower 6 VA power rating and 50 mA secondary current. Verify if the reduced capacity meets the load requirements of the application before substituting.
