HCTSM80308BAL-E1

Overview

The HCTSM80308BAL-E1 is an encapsulated pulse transformer from the Bourns HCT series, designed for isolation and data interface applications. It features a primary-to-secondary turns ratio of 3:8 and a nominal inductance of 300 µH. The component supports a peak secondary current of 350 mA and operates within a voltage-time (ET) specification of 11 V·µs. It is qualified to AEC-Q200 standards for automotive reliability. The device utilizes surface mount technology with dimensions of 12.3 mm length, 10.8 mm width, and 6.5 mm height. Operating temperature range spans from -40°C to +125°C.

Feature Summary

• AEC-Q200 qualified for automotive grade reliability
• Encapsulated design for isolation and data interface
• High clearance and creepage distance construction
• Compatible with Texas Instruments SN6501 and SN6505B drivers

Applications

• Isolation power supplies using SN6501 transformer drivers
• Isolation power supplies using SN6505B transformer drivers
• Automotive electronic systems requiring certified components

Procurement Notes

Verify availability status as this specific part number may be discontinued or limited in stock at major distributors. Confirm that the functional requirements match the 3:8 turns ratio and 300 µH inductance specifications. Ensure the PCB footprint accommodates the 12.3 mm x 10.8 mm SMD package. Check for valid replacement options if supply chain constraints exist.

Selection Notes

Select this component when designing isolated power stages driven by single-ended primary inductance converters (SEPIC) or similar topologies utilizing TI SN6501/SN6505B drivers. The high clearance design suits applications requiring robust insulation barriers. Verify thermal performance within the -40°C to +125°C range for the target environment. Ensure the 350 mA peak current rating meets the load demands.

Part Context

This part belongs to the Bourns HCT series of high clearance transformers. These components are specifically engineered for automotive and industrial isolation applications. The series emphasizes safety compliance through enhanced creepage distances. They serve as critical magnetic coupling elements in driver-based isolated power architectures.

Replacement Considerations

The HCTSM80308BAL-E is listed as a parameter equivalent substitute. Verify pinout compatibility and electrical equivalence before substitution. Ensure the alternative maintains AEC-Q200 qualification if automotive use is required.