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HM1238NLT
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Product Detailed Parameters
- Description：MDL, SIN, XFMR-CMC, 1:1, 4.3KV,
- Series：-
- Mfr：Pulse Electronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Transformer Type：-
- Inductance：300µH
- ET (Volt-Time)：-
- Turns Ratio - Primary:Secondary：1:01
- Mounting Type：Surface Mount
- Size / Dimension：0.330" L x 0.303" W (8.38mm x 7.69mm)
- Height - Seated (Max)：0.167" (4.25mm)
- Operating Temperature：-40°C ~ 150°C
- Grade：-
- Qualification：-
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Overview
The HM1238NLT is a surface-mount pulse transformer manufactured by Pulse Electronics, designed for automotive applications. It features a 1:1 turns ratio and an inductance of 300µH. The component supports a high isolation voltage of 4.3kV and operates within a temperature range of -40°C to 150°C. Its physical dimensions are 8.38mm in length, 7.69mm in width, with a maximum height of 4.25mm. This device is AEC-Q qualified for reliability.
Feature Summary
- AEC-Q200 qualified for automotive reliability standards
- High isolation voltage capability of 4.3kV
- Surface mount package design for automated assembly
Applications
- Battery management systems
- Automotive signal isolation
- Common mode chopper circuits
Procurement Notes
Verify the specific suffix 'NLT' indicates tape and reel packaging, distinct from the 'NL' variant which uses tubes. Confirm that the 4.3kV isolation rating aligns with system safety requirements. Ensure the operating temperature range meets the environmental conditions of the target application. Cross-reference the datasheet for precise DC resistance values if circuit impedance matching is critical.
Selection Notes
Select this component when automotive-grade certification is mandatory for the design. The 300µH inductance suits specific signal filtering needs. Consider the compact footprint compared to larger tube-packaged variants. Verify compatibility with the intended PCB layout constraints. Ensure the voltage rating exceeds peak transient voltages in the circuit.
Part Context
This part belongs to Pulse Electronics' portfolio of audio and signal transformers tailored for network and automotive sectors. It complements other components in battery management solutions. The product line emphasizes robust performance in harsh environments. It serves as a specialized solution for isolated signal transmission in modern vehicles.
Replacement Considerations
The HM1238NL is a related variant but differs in packaging (tube vs. tape) and potentially dimensional tolerances. Verify mechanical fit before substitution. Check if the HM1236NLT's higher inductance or voltage rating affects circuit behavior. Ensure any substitute maintains AEC-Q200 qualification.
