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Product Detailed Parameters
- Description:XFMR CMC MODULE AECQ BATT MNGT
- Series:-
- Mfr:Pulse Electronics
- Package:Tube
- Transformer Type:-
- Inductance:650µH
- ET (Volt-Time):-
- Turns Ratio - Primary:Secondary:1:01
- Mounting Type:Surface Mount
- Size / Dimension:0.455" L x 0.375" W (11.56mm x 9.53mm)
- Height - Seated (Max):0.225" (5.72mm)
- Operating Temperature:-
- Grade:-
- Qualification:-
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Overview
The HM1237NL is an audio and signal transformer manufactured by Pulse Electronics, designed for surface mount applications. It functions as a common mode choke (CMC) module specifically qualified under the AEC-Q200 standard for automotive reliability. The component features a 1:1 turns ratio and provides an inductance of 650µH. It is intended for use in battery management systems within automotive environments.
Feature Summary
- AEC-Q200 qualified for automotive grade reliability
- Surface mount construction for automated assembly
- Common mode choke functionality with 1:1 ratio
Applications
- Automotive battery management systems
- Signal conditioning circuits requiring common mode noise suppression
- Audio interface protection in vehicle electronics
Procurement Notes
Verify the specific package configuration upon ordering, as documentation indicates tube packaging for this part number. Confirm that the AEC-Q200 qualification meets the required automotive standards for the target application. Ensure compatibility with surface mount assembly processes and verify that the 650µH inductance value aligns with the circuit design requirements for common mode rejection.
Selection Notes
Select the HM1237NL when automotive reliability certification is mandatory for battery management or signal integrity applications. The choice is driven by the need for a surface mount common mode choke with a precise 1:1 ratio. Consider this component over generic transformers due to its specific AEC-Q200 qualification and defined inductance characteristics suitable for automotive noise filtering.
Part Context
This component belongs to Pulse Electronics' portfolio of audio and signal transformers. It is distinct from their LAN transformers and high-voltage modules, focusing instead on low-power signal integrity and common mode noise suppression. The HM1237NL serves as a specialized solution for automotive electronic architectures requiring certified passive components.
Replacement Considerations
HM1238NL is a related model within the same series offering similar CMC functionality. Verify pinout compatibility and inductance tolerance before substitution. No other direct substitute part numbers are confirmed in public documentation.
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