BU4332FVE-TR Equivalent & Substitute Parts

Part Overview

The BU4332FVE-TR is a supervisor integrated circuit from Rohm Semiconductor designed for power management applications. It functions as a simple reset/power-on reset controller with push-pull, totem pole output configuration, monitoring a single voltage threshold at 3.2V. The device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for new designs or production continuity. Active substitute parts maintain identical electrical specifications while offering improved availability and current product status.

Substiute Parts

BU4332FVE-TR

Rohm SemiconductorIn Stock: 755BU4332FVE-TR Datasheet

Current PartRFQ

BU4332G-TR

Rohm SemiconductorIn Stock: 860BU4332G-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BU4332FVE-TR is determined by strict equivalence across the following critical parameters:

• Functional Type: Simple Reset/Power-On Reset supervisor
• Voltage Monitoring: Single channel at 3.2V threshold
• Output Stage: Push-Pull, Totem Pole configuration
• Reset Polarity: Active Low
• Reset Timeout: Adjustable/Selectable capability
• Operating Temperature Range: -40°C ~ 125°C
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected
• Base Product Series: BU4332 family

The BU4332G-TR qualifies as a manufacturer-recommended substitute because it maintains identical electrical and functional specifications across all critical parameters. The primary difference is packaging format: the BU4332FVE-TR uses 5-VSOF package, while the BU4332G-TR uses 5-SSOP package (SC-74A, SOT-753). Both are surface-mount packages with equivalent pin counts and electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The BU4332G-TR is the manufacturer-recommended substitute for the obsolete BU4332FVE-TR. Selection of this substitute is justified on the following basis:

• Electrical Equivalence: All functional parameters, voltage thresholds, output configurations, and operating ranges are identical.
• Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring compatibility with current environmental regulations.
• Product Availability: The BU4332G-TR maintains active product status with current inventory (838 Pcs), whereas the BU4332FVE-TR is obsolete.
• Packaging Compatibility: Both parts are surface-mount devices with 5-pin configurations. PCB layout modifications may be required due to package outline differences (5-VSOF vs. 5-SSOP), but electrical functionality remains unchanged.

Selection of the BU4332G-TR eliminates obsolescence risk while maintaining full functional compatibility with existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the BU4332G-TR be used as a direct replacement for the BU4332FVE-TR without circuit modifications?

A: The BU4332G-TR is electrically equivalent and functionally identical. However, the package outline differs (5-VSOF vs. 5-SSOP). PCB footprint modifications are required. Pin assignments and electrical behavior remain unchanged.

Q: What is the primary reason for substituting the BU4332FVE-TR?

A: The BU4332FVE-TR is classified as obsolete. The BU4332G-TR provides functional equivalence with active product status and current manufacturing availability.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 1 - Unlimited).

Q: What are the key electrical parameters that must match for substitution?

A: Critical parameters include voltage threshold (3.2V), output configuration (Push-Pull, Totem Pole), reset polarity (Active Low), reset timeout capability (Adjustable/Selectable), and operating temperature range (-40°C ~ 125°C).

Q: Does the package change affect the electrical performance?

A: No. The package change from 5-VSOF to 5-SSOP is a physical form factor difference only. Electrical specifications, performance characteristics, and functional behavior remain identical.

Q: What inventory status should be considered when selecting between these parts?

A: The BU4332FVE-TR has 682 Pcs in stock but is obsolete. The BU4332G-TR has 838 Pcs in stock and is active. For new designs or long-term production, the BU4332G-TR is the appropriate selection.