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F-137P
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Product Detailed Parameters
- Description：PWR XFMR LAMINATED 1.5VA TH
- Series：Single Primary
- Mfr：Triad Magnetics
- Package：Box
- Type：Laminated Core
- Voltage - Primary：115V
- Voltage - Secondary (Full Load)：Parallel 20V, Series 40V
- Current - Output (Max)：Parallel 76mA, Series 38mA
- Primary Winding(s)：Single
- Secondary Winding(s)：Dual
- Center Tap：No
- Power - Max：1.5VA
- Mounting Type：Through Hole
- Termination Style：PC Pin
- Size / Dimension：35.31mm L x 39.67mm W
- Height - Seated (Max)：30.15mm
- Voltage - Isolation：1500Vrms
- Weight：0.219 lb (99.34 g)
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Overview
The Triad Magnetics F-137P is a laminated core power transformer with a 1.5VA rating, designed for PCB mounting. It features a single 115V primary winding and dual secondaries configured as 20V and 40V outputs when connected in parallel, delivering a maximum current of 76mA. The unit operates at 50/60 Hz and withstands 1500Vrms isolation between windings. Constructed with Class B (130°C) rated materials, it undergoes 100% hipot testing to ensure insulation integrity.
Feature Summary
- Laminated core construction for efficient power transformation
- Dual secondary windings allowing flexible voltage configurations
- 100% hipot tested for high insulation reliability
- Class B thermal rating suitable for elevated temperature environments
Applications
- Control circuit power supplies
- Instrumentation equipment
- General purpose AC power conversion
Procurement Notes
Verify the specific secondary configuration required, as the datasheet indicates parallel connection for the stated 20V/40V output. Confirm that the 115V primary matches your input source frequency and voltage. Ensure PCB layout accommodates the through-hole pin spacing and physical dimensions provided in the mechanical drawings.
Selection Notes
Select this component when a low-power, isolated DC supply is needed for control logic or instrumentation. The dual secondary design offers flexibility for creating different voltage rails from a single transformer. Verify that the 1.5VA capacity meets the total load requirements of the downstream circuitry without exceeding thermal limits.
Part Context
This part belongs to the Triad Magnetics F series of power transformers. These units are characterized by their bobbin construction and PC pin termination style. The series is widely used in industrial and commercial electronics where reliable isolation and compact form factors are required for power distribution tasks.
Replacement Considerations
Consult Triad Magnetics cross-reference documentation for direct equivalents. Hammond Manufacturing may offer compatible alternatives within their transformer lineup. Verify pinout compatibility and electrical ratings before substituting to ensure system integrity.
