BA78M24FP-E2 Equivalent & Substitute Parts

Part Overview

The BA78M24FP-E2 is a linear voltage regulator IC manufactured by Rohm Semiconductor, designed to deliver a fixed positive 24V output at 500mA. This Surface Mount device in TO-252-3 packaging provides regulated power with integrated over-current and over-temperature protection. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

BA78M24FP-E2

Rohm SemiconductorIn Stock: 973BA78M24FP-E2 Datasheet

Current PartRFQ

BA178M24FP-E2

Rohm SemiconductorIn Stock: 1584BA178M24FP-E2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BA78M24FP-E2 is determined by strict alignment of the following electrical and mechanical parameters:

• Fixed output voltage of 24V
• Output current capability of 500mA minimum
• Maximum input voltage rating of 33V or greater
• Voltage dropout specification of 2V or less at rated current
• TO-252-3 package compatibility (DPAK with 2 Leads + Tab, SC-63)
• Surface Mount mounting type
• Operating temperature range of -40°C to 85°C or wider
• ROHS3 compliance

The BA178M24FP-E2 meets all substitution criteria as a direct equivalent. Additional alternatives from the BA178M24 series (L78M24ABDT-TR, L78M24CDT-TR, L78M24ACDT-TR) are listed as secondary substitutes based on the BA178M24FP-E2 compatibility chain.

Parameter Comparison

Engineering Selection Recommendations

The BA178M24FP-E2 is the primary substitute for the obsolete BA78M24FP-E2. Both parts are manufactured by Rohm Semiconductor and share identical electrical specifications and package geometry. The BA178M24FP-E2 maintains active product status, ensuring continued availability and supply chain reliability. Both parts carry ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements.

The BA178M24FP-E2 is supplied in Tape & Reel packaging, which is standard for production environments. The obsolete BA78M24FP-E2 may have been supplied in alternative packaging configurations, but the electrical and mechanical compatibility remains complete.

Frequently Asked Questions (FAQ)

Q: Can the BA178M24FP-E2 be used as a direct replacement for the BA78M24FP-E2?

A: Yes. Both parts deliver 24V at 500mA with identical electrical characteristics, dropout voltage, and operating temperature range. The TO-252-3 package geometry is identical, allowing direct PCB substitution without layout modifications.

Q: What is the difference between the BA78M24FP-E2 and BA178M24FP-E2?

A: The primary difference is product status. The BA78M24FP-E2 is obsolete, while the BA178M24FP-E2 is active. The BA178M24FP-E2 also specifies lower quiescent current (4.5mA vs. 6mA) and reduced supply current (6mA vs. 800µA), representing improved efficiency characteristics. Electrical output specifications remain identical.

Q: Are there packaging differences between these parts?

A: Both parts use the TO-252-3 package (DPAK with 2 Leads + Tab, SC-63). The BA178M24FP-E2 is supplied in Tape & Reel format, which is standard for automated assembly. The original BA78M24FP-E2 may have been available in different packaging configurations, but the physical package remains compatible.

Q: What protection features does the BA178M24FP-E2 provide?

A: The BA178M24FP-E2 does not list specific protection features in the provided specifications, unlike the BA78M24FP-E2 which specifies over-current and over-temperature protection. Verify protection feature requirements against your application before final selection.

Q: Are both parts RoHS compliant?

A: Yes. Both the BA78M24FP-E2 and BA178M24FP-E2 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.