BA15T Linear Voltage Regulator IC - Equivalent & Substitute Parts

Part Overview

The BA15T is a linear voltage regulator IC manufactured by Rohm Semiconductor, designed to provide a fixed positive 15V output at 1A current capacity. This through-hole TO-220-3 package component is classified as active product status and serves as a positive fixed output voltage regulator for power management applications. Substitute parts are identified when equivalent electrical performance, output configuration, and mechanical compatibility can be maintained within the specified parameter tolerances.

Substiute Parts

BA15T

Rohm SemiconductorIn Stock: 28317BA15T Datasheet

Current PartRFQ

LM2940CT-15/NOPB

Texas InstrumentsIn Stock: 2326LM2940CT-15/NOPB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BA15T are identified based on the following critical parameters that determine functional equivalence:

• Output Voltage (Fixed): 15V - substitute must provide identical fixed output voltage
• Output Current Capacity: 1A - substitute must support minimum 1A output current
• Output Configuration: Positive - substitute must be positive output regulator
• Package Type: TO-220-3 - substitute must use identical through-hole package for mechanical compatibility
• Input Voltage Range: Substitute maximum input voltage must accommodate the BA15T's 25V maximum specification
• Product Status: Active - substitute must be actively manufactured and available

The LM2940CT-15/NOPB meets all substitution criteria through matching output voltage (15V), output current (1A), positive output configuration, TO-220-3 package, and active product status.

Parameter Comparison

Engineering Selection Recommendations

Both the BA15T and LM2940CT-15/NOPB are active product status components with ROHS3 compliance and REACH unaffected status, qualifying them for equivalent use in 15V 1A linear regulator applications. Selection between these parts should be based on application-specific requirements:

The BA15T operates across -40°C to 85°C with lower quiescent current (0.5 mA) and is suitable for extended low-temperature environments. The LM2940CT-15/NOPB operates across 0°C to 125°C with higher maximum input voltage tolerance (26V vs 25V) and includes reverse polarity protection. Both components are mechanically and electrically compatible through identical TO-220-3 packaging and 1A output current specification.

Frequently Asked Questions (FAQ)

Q: Can the LM2940CT-15/NOPB directly replace the BA15T in existing designs?

A: Yes. Both components provide 15V fixed positive output at 1A capacity in identical TO-220-3 through-hole packages. Pin configuration and electrical output characteristics are compatible for direct substitution.

Q: What are the key differences between these two parts?

A: The primary differences are quiescent current (BA15T: 0.5 mA vs LM2940CT-15/NOPB: 10 mA), operating temperature range (BA15T: -40°C to 85°C vs LM2940CT-15/NOPB: 0°C to 125°C), and protection features (LM2940CT-15/NOPB includes reverse polarity and short circuit protection). Maximum input voltage differs slightly (BA15T: 25V vs LM2940CT-15/NOPB: 26V).

Q: Are both parts RoHS compliant?

A: Yes. Both BA15T and LM2940CT-15/NOPB are ROHS3 compliant and REACH unaffected.

Q: Does package type affect substitution?

A: No. Both parts use identical TO-220-3 through-hole packages with matching pin configurations, ensuring mechanical and electrical compatibility without PCB redesign.

Q: Which part should be selected for low-temperature applications below -40°C?

A: The BA15T is specified for operation down to -40°C. The LM2940CT-15/NOPB minimum operating temperature is 0°C, making it unsuitable for applications requiring sub-zero operation.