BA178M10FP-E2 Equivalent & Substitute Parts

Part Overview

The BA178M10FP-E2 is a linear voltage regulator IC manufactured by Rohm Semiconductor, designed for positive fixed output applications. This Surface Mount device delivers 500mA output current at a fixed 10V output voltage, operating across an input range up to 25V with a maximum dropout voltage of 2V at rated load. The part is Active status and RoHS3 compliant, making it suitable for industrial and commercial power management applications where space constraints and thermal performance are critical.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this product category.

Substiute Parts

BA178M10FP-E2

Rohm SemiconductorIn Stock: 1917BA178M10FP-E2 Datasheet

Current PartRFQ

L78M10ABDT-TR

STMicroelectronicsIn Stock: 17066L78M10ABDT-TR Datasheet

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TL750M10CKVURG3

Texas InstrumentsIn Stock: 2956TL750M10CKVURG3 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BA178M10FP-E2 are qualified based on the following electrical and mechanical criteria:

Primary Substitution Criteria:

• Fixed output voltage of 10V
• Output current capability of 500mA or greater
• Input voltage rating compatible with 25V maximum specification
• Surface Mount packaging in TO-252-3 (DPAK) form factor
• RoHS3 compliance and Active product status

Identified Substitutes:

L78M10ABDT-TR (STMicroelectronics): Meets all primary criteria with higher input voltage rating (35V) and extended operating temperature range (-40°C to 125°C). Output current matches at 500mA. Package and compliance specifications are equivalent.

TL750M10CKVURG3 (Texas Instruments): Exceeds output current specification at 750mA, supporting higher load applications. Input voltage rating of 26V is compatible. Operating temperature range is 0°C to 125°C. Package and compliance specifications are equivalent.

Parameter Comparison

Engineering Selection Recommendations

BA178M10FP-E2 (Primary Part): Select when Rohm Semiconductor supply chain preference is established and the -40°C to 85°C operating range is sufficient for the application. Superior PSRR performance (66dB) supports noise-sensitive analog circuits.

L78M10ABDT-TR (STMicroelectronics Substitute): Select when extended input voltage tolerance (35V) is required or when operating temperature range extension to 125°C is necessary. Integrated protection features (Over Current, Over Temperature, Short Circuit) provide additional circuit robustness. Higher quiescent current (6mA vs 4.5mA) should be evaluated for battery-powered applications.

TL750M10CKVURG3 (Texas Instruments Substitute): Select when output current headroom beyond 500mA is required (750mA capability). Superior dropout voltage performance (0.6V @ 750mA) reduces thermal dissipation in power-limited designs. Comprehensive protection features (Over Current, Over Temperature, Over Voltage, Reverse Polarity) support harsh operating environments. Operating temperature minimum of 0°C should be verified against application requirements.

All three parts maintain RoHS3 compliance and Active product status, ensuring long-term supply availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can L78M10ABDT-TR directly replace BA178M10FP-E2 in existing designs?

A: Yes. Both devices share identical output voltage (10V), output current (500mA), and TO-252-3 package specifications. The L78M10ABDT-TR offers higher input voltage rating (35V vs 25V) and extended temperature range (-40°C to 125°C vs -40°C to 85°C), making it a compatible drop-in substitute. Verify PCB layout and thermal management remain adequate.

Q: What is the primary difference between BA178M10FP-E2 and TL750M10CKVURG3?

A: The TL750M10CKVURG3 provides 750mA output current versus 500mA, and features superior dropout voltage (0.6V vs 2V at rated load). Both maintain 10V fixed output and TO-252-3 packaging. The TL750M10CKVURG3 operating temperature range begins at 0°C rather than -40°C, which must be confirmed for low-temperature applications.

Q: Are all three parts pin-compatible?

A: Yes. All three regulators use TO-252-3 (DPAK) packaging with identical pinout: Input, Ground, and Output. PCB footprints are interchangeable without modification.

Q: Which substitute offers the best protection features?

A: TL750M10CKVURG3 provides the most comprehensive protection: Over Current, Over Temperature, Over Voltage, and Reverse Polarity. L78M10ABDT-TR includes Over Current, Over Temperature, and Short Circuit protection. BA178M10FP-E2 specifies no integrated protection features.

Q: How do PSRR values affect circuit performance?

A: PSRR (Power Supply Rejection Ratio) measures the regulator's ability to reject input voltage noise. BA178M10FP-E2 provides 66dB, superior to L78M10ABDT-TR (56dB) and TL750M10CKVURG3 (55dB). Higher PSRR is beneficial for noise-sensitive analog signal conditioning and precision measurement circuits.

Q: What packaging format differences exist between these parts?

A: BA178M10FP-E2 is supplied in Tape & Reel (TR) format. L78M10ABDT-TR is available in Cut Tape (CT) and Digi-Reel® format. TL750M10CKVURG3 is supplied in Tape & Reel (TR) format. All use identical TO-252-3 component packaging; format differences affect only procurement and handling logistics.