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HM1188NL
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Product Detailed Parameters
- Description：PULSE XFMR 1CT:1CT TX 1CT:1CT RX
- 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 0.280" W (12.70mm x 7.11mm)
- Height - Seated (Max)：0.235" (5.97mm)
- Operating Temperature：-40°C ~ 105°C
- Grade：-
- Qualification：-
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Overview
The HM1188NL is a single-port LAN transformer module manufactured by Pulse Electronics, designed for Surface Mount Device (SMD) integration. It supports 100Base-TX Ethernet applications with a nominal inductance of 350 uH and an isolation voltage of 1.5 kVAC. The component features dual channels with a 1CT:1CT turns ratio for both transmitter and receiver paths. Operating within a temperature range of -40°C to +105°C, it measures 12.7 mm in length, 9.53 mm in width, and 5.97 mm in height.
Feature Summary
- Provides galvanic isolation for Ethernet signal transmission and reception
- Supports standard 100Base-TX network interface protocols
- Engineered for high-temperature operational environments up to 105°C
Applications
- 100Base-TX Ethernet port implementation
- Network interface card (NIC) designs
- Industrial communication equipment requiring extended temperature ranges
Procurement Notes
Verify the specific suffix against official datasheets to confirm package type and reel specifications. Ensure compatibility with RoHS3 compliance requirements for your target market. Confirm that the selected variant matches the required thermal performance and isolation standards for your specific circuit design before finalizing procurement orders.
Selection Notes
Select this component when designing 100Base-TX interfaces requiring robust thermal stability up to 105°C. The 350 uH inductance value suits standard twisted-pair coupling needs. Verify footprint dimensions of 12.7mm x 9.53mm fit the PCB layout constraints. Consider the SMD mounting style for automated assembly processes.
Part Context
This part belongs to the HM series of LAN transformers from Pulse Electronics. It serves as a magnetics solution for Ethernet connectivity, distinct from PoE-enabled variants which typically feature different winding configurations. The HM series focuses on non-PoE data transmission requirements for standard networking hardware.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer cross-reference guides for potential alternatives.
