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Product Detailed Parameters
- Description：CURR SENSE XFMR 1:500 30A T/H
- Series：CSE
- Mfr：Triad Magnetics
- Package：Bulk
- Frequency Range：50Hz ~ 400Hz
- Type：Invasive
- Inductance：-
- ET (Volt-Time)：-
- Current Ratio：-
- DC Resistance (DCR)：3mOhm Primary, 21Ohm Secondary
- Ratings：-
- Mounting Type：Through Hole
- Size / Dimension：0.875" L x 0.875" W (22.23mm x 22.23mm)
- Height - Seated (Max)：0.720" (18.29mm)
- Termination Style：PC Pin
- Turns Ratio - Primary:Secondary：0.388888889
- Current Rating (Amps)：30 A
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Overview
The CSE187L-P-B is a low-frequency current sense transformer manufactured by Triad Magnetics. It features a primary-to-secondary turns ratio of 1:500 and supports AC current monitoring from 0.1 to 30 amperes within a frequency range of 50 Hz to 400 Hz. The device utilizes PCB mount termination with a maximum primary DC resistance of 270 micro ohms. A suggested burden resistor value is 60 ohms, yielding an output of 110mV per ampere.
Feature Summary
- Designed for monitoring AC currents in low-frequency applications
- Provides precise current sensing via a fixed 1:500 turns ratio
- Supports operation across a wide frequency spectrum from 50 Hz to 400 Hz
Applications
- AC current monitoring systems
- Low-frequency industrial control circuits
- Power supply feedback loops
Procurement Notes
Verify the specific suffix designation against official Triad Magnetics documentation to confirm pinout configuration and mounting style variations. Ensure the selected variant matches the required PCB footprint and electrical specifications for the target application environment.
Selection Notes
Select this component when precise low-frequency current measurement is required. Consider the 1:500 turns ratio and associated burden resistor requirements for signal conditioning compatibility. Verify that the operating frequency range aligns with the system's power line or switching frequency constraints.
Part Context
This part belongs to the CSE series of current sense transformers from Triad Magnetics. These components are engineered for accurate current monitoring in electronic circuits where isolation between the primary current path and the sensing circuitry is necessary.
Replacement Considerations
Consult manufacturer cross-reference lists for verified substitutes. Ensure any replacement maintains the 1:500 turns ratio and compatible physical dimensions for PCB integration.
FAQ
What is the recommended burden resistor value for the CSE187L-P-B?
A burden resistor of 60 ohms is suggested to achieve an output of 110mV per ampere.
What is the maximum primary DC resistance for this transformer?
The maximum primary DC resistance is specified as 270 micro ohms.
