BAJ2CC0WT-V5 Equivalent & Substitute Parts

Part Overview

The BAJ2CC0WT-V5 is a linear voltage regulator IC manufactured by Rohm Semiconductor, designed to deliver a fixed 12V output at 1A maximum current in a TO-220-5 package. This device is classified as a Power Management PMIC with active product status and full RoHS3 compliance. Alternative equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part becomes unavailable or when application requirements permit higher output current specifications.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	12V
Output Current	1A
Input Voltage (Max)	25V
Output Configuration	Positive
Package Type	TO-220-5
Operating Temperature Range	-40°C to 125°C
Protection Features	Over Current, Over Temperature, Over Voltage
Control Features	Enable
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the BAJ2CC0WT-V5 are classified into two categories based on parametric alignment:

Parametric Equivalent (Direct Replacement): BAJ2CC0WT matches all critical electrical and mechanical specifications with the main part, including 12V fixed output, 1A output current, 25V maximum input voltage, TO-220-5 package, and identical protection features. This part is suitable for direct substitution without circuit modification.

Similar Substitute (Higher Current Capability): MIC29151-12WT from Microchip Technology provides the same 12V fixed output voltage and TO-220-5 package configuration but with increased output current capability of 1.5A and enhanced protection features including reverse polarity and transient voltage protection. This part is suitable for applications where the original 1A specification is insufficient or where additional protection margins are required.

Substitution eligibility is determined by matching output voltage (12V fixed), output configuration (positive), package type (TO-220-5), operating temperature range (-40°C to 125°C), and compliance certifications (RoHS3, REACH Unaffected).

Parameter Comparison

Parameter	BAJ2CC0WT-V5 (Main)	BAJ2CC0WT (Parametric Equivalent)	MIC29151-12WT (Similar Substitute)
Manufacturer	Rohm Semiconductor	Rohm Semiconductor	Microchip Technology
Output Voltage (Fixed)	12V	12V	12V
Output Current	1A	1A	1.5A
Input Voltage (Max)	25V	25V	26V
Quiescent Current (Iq)	2.5 mA	2.5 mA	Not specified
PSRR	55dB (120Hz)	55dB (120Hz)	Not specified
Dropout Voltage	Not specified	Not specified	0.6V @ 1.5A
Package / Case	TO-220-5	TO-220-5	TO-220-5
Operating Temperature	-40°C to 125°C	-40°C to 125°C	-40°C to 125°C
Protection Features	Over Current, Over Temperature, Over Voltage	Over Current, Over Temperature, Over Voltage	Over Current, Over Temperature, Reverse Polarity, Transient Voltage
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

BAJ2CC0WT (Parametric Equivalent): This part is recommended as the primary substitute when BAJ2CC0WT-V5 availability is constrained. It maintains identical electrical specifications, output current rating, and protection architecture. Both parts carry active product status, ROHS3 compliance, and REACH Unaffected certification, ensuring regulatory and supply chain continuity.

MIC29151-12WT (Similar Substitute): This part is recommended for applications where output current demand may approach or exceed 1A, or where enhanced protection against reverse polarity and transient voltage events is required. The increased current capability (1.5A) and additional protection features provide design margin without modifying circuit topology. The part maintains TO-220-5 package compatibility and identical compliance certifications. The specified dropout voltage of 0.6V at 1.5A should be evaluated against circuit power budget requirements.

Both substitute parts are suitable for through-hole mounting applications and support the full operating temperature range of -40°C to 125°C.

Frequently Asked Questions (FAQ)

Q: Can BAJ2CC0WT be used as a direct replacement for BAJ2CC0WT-V5?

A: Yes. BAJ2CC0WT is a parametric equivalent with identical output voltage (12V), output current (1A), input voltage rating (25V), package configuration (TO-220-5), and protection features. No circuit modifications are required.

Q: What are the key differences between BAJ2CC0WT-V5 and MIC29151-12WT?

A: Both devices provide 12V fixed output in TO-220-5 packages. MIC29151-12WT offers higher output current (1.5A vs. 1A), specified dropout voltage (0.6V @ 1.5A), and additional protection against reverse polarity and transient voltage events. The maximum input voltage is slightly higher (26V vs. 25V). PSRR and quiescent current specifications are not provided for the MIC29151-12WT.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. BAJ2CC0WT and MIC29151-12WT are both ROHS3 Compliant and REACH Unaffected, matching the compliance status of the main part.

Q: Can MIC29151-12WT be used in applications designed for 1A output current?

A: Yes. MIC29151-12WT is rated for 1.5A output current, which exceeds the 1A requirement. The device will operate within specification in circuits designed for 1A output. The higher current rating provides additional design margin and does not create compatibility issues.

Q: Are there package or pinout differences between these parts?

A: All three parts use the TO-220-5 package configuration. Pinout compatibility should be verified against specific device datasheets before implementation, as pin assignments may vary between manufacturers.

Q: What is the inventory status of these substitute parts?

A: BAJ2CC0WT has 1552 pieces in stock. MIC29151-12WT has 5100 pieces in stock. Both parts are available as new original components.

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