BA6161N Equivalent & Substitute Parts

Part Overview

The BA6161N is a boost switching regulator IC manufactured by Rohm Semiconductor, designed for step-up voltage conversion applications. It delivers positive adjustable output voltage in the 30V to 35V range with 3mA output current capability and operates across a 3V to 16V input range. The device is packaged in a 5-SIP through-hole configuration and operates across the -20°C to 75°C temperature range.

The BA6161N is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for applications utilizing this regulator.

Substiute Parts

BA6161N

Rohm SemiconductorIn Stock: 4860BA6161N Datasheet

Current PartRFQ

BA6161F-BZE2

Rohm SemiconductorIn Stock: 1231BA6161F-BZE2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BA6161N is determined by strict equivalence across the following critical parameters:

• Function: Step-Up (Boost) topology
• Output Configuration: Positive adjustable output
• Voltage Range: Input 3V–16V, Output 30V–35V
• Output Current: 3mA capability
• Switching Frequency: 100kHz
• Operating Temperature: -20°C to 75°C
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected
• Base Product Number: BA6161 family

The BA6161F-BZE2 meets all electrical and functional equivalence criteria. The primary difference is packaging: the substitute uses 8-SOIC surface-mount packaging instead of the original 5-SIP through-hole configuration. This packaging change requires PCB layout modification but does not affect electrical performance or functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The BA6161F-BZE2 is the qualified substitute for the obsolete BA6161N based on the following factors:

• Electrical Equivalence: All functional parameters, voltage ranges, current ratings, and switching frequency are identical.
• Regulatory Compliance: Both devices maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory continuity.
• Product Status: The BA6161F-BZE2 is active and in production, providing long-term supply chain stability compared to the obsolete BA6161N.
• Packaging Consideration: The transition from 5-SIP through-hole to 8-SOIC surface-mount packaging requires PCB redesign. This is a mechanical change only and does not affect electrical performance or functional compatibility.

Selection of the BA6161F-BZE2 is appropriate for new designs or redesigned applications where surface-mount assembly is feasible.

Frequently Asked Questions (FAQ)

Q: Can the BA6161F-BZE2 be used as a direct pin-for-pin replacement for the BA6161N?

A: No. The BA6161F-BZE2 uses 8-SOIC surface-mount packaging, while the BA6161N uses 5-SIP through-hole packaging. Pin counts and physical layouts differ. PCB redesign is required for mechanical compatibility, though electrical function remains equivalent.

Q: Are the electrical specifications identical between BA6161N and BA6161F-BZE2?

A: Yes. Both devices share identical input voltage range (3V–16V), output voltage range (30V–35V), output current (3mA), switching frequency (100kHz), and operating temperature range (-20°C to 75°C).

Q: What is the primary reason to substitute the BA6161N?

A: The BA6161N is obsolete. The BA6161F-BZE2 is an active product from the same manufacturer with equivalent electrical specifications, ensuring continued availability and supply chain reliability.

Q: Does the package change affect circuit performance?

A: The package change does not affect electrical performance. Both devices operate identically within their specified parameters. PCB layout and assembly methods differ, but functional behavior remains equivalent.

Q: Are both devices compliant with current regulatory standards?

A: Yes. Both the BA6161N and BA6161F-BZE2 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.