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HM1331NL
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Product Detailed Parameters
- Description：MDL,SIN,100D,1:1,SMT
- Series：-
- Mfr：Pulse Electronics
- Package：Tube
- Transformer Type：LAN 10/100 Base-T
- Inductance：350µH
- ET (Volt-Time)：-
- Turns Ratio - Primary:Secondary：1CT:1CT Transmitter, 1CT:1CT Receiver
- Mounting Type：Surface Mount
- Size / Dimension：0.500" L x 0.600" W (12.70mm x 15.24mm)
- Height - Seated (Max)：0.300" (7.62mm)
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
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Overview
The HM1331NL is a LAN 10/100 Base-T pulse transformer manufactured by Pulse Electronics. It features a 1:1 turns ratio with 1CT:1CT transmitter and receiver windings. The component provides 4000 Vrms isolation voltage and operates within a frequency range of 100 Hz to 100 MHz. Key electrical parameters include 350 µH inductance and 1000 V dielectric strength. Physical dimensions are 15.24 mm length, 12.7 mm width, and 7.62 mm height. Operating temperature ranges from -40°C to +85°C.
Feature Summary
- Designed for Ethernet network applications supporting 10/100 Base-T standards
- Provides high isolation voltage of 4000 Vrms for signal integrity
- Surface mount construction for automated assembly integration
Applications
- Ethernet network interface circuits
- LAN 10/100 Base-T transceiver modules
- Signal coupling in data communication hardware
Procurement Notes
Verify the specific datasheet version to confirm RoHS compliance status and detailed pinout configurations. Ensure the selected variant matches the required surface mount footprint dimensions. Cross-reference manufacturer part numbers against distributor catalogs to avoid counterfeit components. Confirm thermal performance specifications align with system operating conditions.
Selection Notes
Select this component for designs requiring 10/100 Base-T connectivity with robust isolation requirements. The 350 µH inductance supports standard Ethernet signaling frequencies. Verify that the 15.24 x 12.7 mm SMT package fits the PCB layout constraints. Ensure the -40°C to +85°C temperature range meets environmental specifications.
Part Context
The HM1331NL belongs to the HM series of audio and signal transformers produced by Pulse Electronics. This series focuses on Ethernet and LAN applications, providing reliable signal transmission for networking equipment. The component serves as a critical interface element between PHY chips and network ports.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation.
