BH18SA2WGUT-E2 Equivalent & Substitute Parts

Part Overview

The BH18SA2WGUT-E2 is a power management integrated circuit manufactured by Rohm Semiconductor. This component is designated as Last Time Buy, indicating it has reached end-of-life status and is no longer recommended for new designs. Due to its discontinued status, identifying functionally equivalent substitute parts is essential for ongoing production support and design continuity.

Substiute Parts

BH18SA2WGUT-E2

Rohm SemiconductorIn Stock: 1087BH18SA2WGUT-E2 Datasheet

Current PartRFQ

BU18SA4WGWL-E2

Rohm SemiconductorIn Stock: 7049BU18SA4WGWL-E2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The BU18SA4WGWL-E2 qualifies as a manufacturer-recommended substitute based on the following criteria:

Substitution Logic:

• Both components are power management integrated circuits from Rohm Semiconductor
• Both are surface-mount devices within the same product family (BU18SA series vs. BH18SA series)
• The substitute part maintains compatibility within the power management category
• Substitution is valid when the electrical and mechanical parameters of the replacement part meet or exceed the requirements of the original design

Key Determining Parameters:

• Manufacturer alignment (Rohm Semiconductor)
• Functional category (Power Management / PMIC)
• Package type (Surface Mount, UCSP50L1)
• Output configuration and electrical specifications

Parameter Comparison

Engineering Selection Recommendations

For Existing Designs (BH18SA2WGUT-E2): The original part remains available with 997 units in stock. Continued use is supported for existing production runs and maintenance applications.

For New Designs: The BU18SA4WGWL-E2 is designated as Not For New Designs, indicating it is also approaching end-of-life. Both parts are from Rohm Semiconductor and share power management functionality. The substitute part offers ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements.

Compliance Considerations:

• BU18SA4WGWL-E2: ROHS3 Compliant, REACH Unaffected, MSL Level 1
• Both parts are suitable for applications requiring regulatory compliance in current manufacturing standards

Frequently Asked Questions (FAQ)

Q: Can BU18SA4WGWL-E2 directly replace BH18SA2WGUT-E2? A: Both are Rohm Semiconductor power management ICs in surface-mount packages. Substitution is valid based on manufacturer recommendation and functional category alignment. Verify that the specific electrical parameters (voltage output, current rating, dropout voltage) meet your circuit requirements.

Q: What is the difference in packaging between these parts? A: BH18SA2WGUT-E2 uses surface-mount packaging. BU18SA4WGWL-E2 is supplied in Tape & Reel (TR) format with UCSP50L1 package specification (4-UFBGA, CSPBGA). Both are surface-mount technologies suitable for automated assembly.

Q: Why is BU18SA4WGWL-E2 marked as Not For New Designs? A: This designation indicates the part is in end-of-life phase. While it remains available in inventory (7006 units), Rohm Semiconductor does not recommend it for new product development. For new designs, consult Rohm's current product portfolio for active alternatives.

Q: Are there compliance differences between the two parts? A: BU18SA4WGWL-E2 carries explicit ROHS3 Compliance and REACH Unaffected certifications. Compliance status for BH18SA2WGUT-E2 is not specified in available documentation.

Q: What inventory considerations apply to substitution? A: BH18SA2WGUT-E2 has 997 units available. BU18SA4WGWL-E2 has 7006 units in stock, providing greater availability for immediate procurement needs.