SM75057PEL

Pulse Transformers Overview

The SM75057PEL is a shielded T1/E1 pulse transformer manufactured by Bourns Inc. It features an SMD-16 surface mount package with dimensions of 12.8 mm length, 6.9 mm width, and 5.65 mm height. The component operates within a temperature range of -40°C to +85°C and provides 2 kV insulation voltage. Key electrical specifications include an inductance of 1.2 mH, a maximum DC resistance of 1.6 Ohms, a primary coil resistance of 800 mOhms, and a secondary coil resistance of 1.6 Ohms. It functions at a frequency range starting from 100 kHz.

Pulse Transformers Feature Summary

• Designed for T1/E1 telecommunications applications
• Shielded construction to minimize electromagnetic interference
• Surface mount packaging for automated assembly

Pulse Transformers Applications

• Telecom network interface equipment
• T1 line driver circuits
• E1 transmission systems

Pulse Transformers Procurement Notes

Verify the specific datasheet revision and RoHS compliance status before integration. Confirm that the SMD-16 footprint matches the PCB layout requirements. Ensure the operating temperature range meets the environmental conditions of the final assembly. Check for any recent product change notifications that might affect pinout or material composition.

Pulse Transformers Selection Notes

Select this component when a shielded T1/E1 transformer with 1.2 mH inductance is required. The 2 kV isolation rating suits standard telecom interface needs. The SMD-16 package allows for compact board designs. Verify compatibility with the specific transmitter and receiver impedance requirements of the target circuit design.

Pulse Transformers Part Context

This part belongs to Bourns' audio and signal transformer portfolio, specifically categorized under LAN and telecom transformers. It is designed as a pulse transformer for digital signal transmission. The series includes similar models like the SM75056PEL, sharing comparable form factors and application scopes within the telecommunications infrastructure sector.

Pulse Transformers Replacement Considerations

The SM75056PEL is a documented alternative model from the same manufacturer. Verify pin compatibility and exact electrical parameter alignment before substitution. Ensure the replacement maintains the required shielding and isolation characteristics for the specific T1/E1 application.