BU4324FVE-TR Equivalent & Substitute Parts

Part Overview

The BU4324FVE-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 for single-channel voltage monitoring. The device is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. The BU4324FVE-TR operates across an industrial temperature range and is fully RoHS3 compliant with unlimited moisture sensitivity rating.

Substiute Parts

BU4324FVE-TR

Rohm SemiconductorIn Stock: 89318BU4324FVE-TR Datasheet

Current PartRFQ

BU4324G-TR

Rohm SemiconductorIn Stock: 1155BU4324G-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BU4324FVE-TR is determined by strict equivalence across the following critical parameters:

• Functional type: Simple Reset/Power-On Reset supervisor
• Single-channel voltage monitoring capability
• Voltage threshold: 2.4V
• Output stage: Push-Pull, Totem Pole configuration
• Reset polarity: Active Low
• Reset timeout: Adjustable/Selectable
• Operating temperature range: -40°C ~ 125°C
• Surface mount technology
• RoHS3 compliance and REACH unaffected status

The BU4324G-TR qualifies as a direct substitute based on identical functional specifications, electrical parameters, and regulatory compliance. The primary distinction lies in package form factor and supplier device packaging designation.

Parameter Comparison

Engineering Selection Recommendations

The BU4324G-TR is the designated substitute for the obsolete BU4324FVE-TR. Both devices share identical electrical specifications, functional characteristics, and regulatory compliance certifications. The BU4324G-TR maintains active product status with Rohm Semiconductor, ensuring continued availability and manufacturing support.

The primary design consideration is package form factor compatibility. The BU4324FVE-TR uses SOT-665 (5-VSOF) packaging, while the BU4324G-TR uses SC-74A/SOT-753 (5-SSOP) packaging. PCB layout and footprint modifications are required when transitioning between these package types. Both packages are surface mount configurations with identical pin counts and electrical functionality.

For new designs and production transitions from the obsolete part number, the BU4324G-TR is the appropriate selection. Existing inventory of the BU4324FVE-TR may continue to be used in current production until depletion, provided PCB design accommodates the SOT-665 footprint.

Frequently Asked Questions (FAQ)

Q: Can the BU4324G-TR directly replace the BU4324FVE-TR without circuit modifications?

A: Electrical and functional replacement is direct. PCB layout modifications are required due to different package form factors (SOT-665 versus SC-74A/SOT-753). Pin configuration and electrical function are equivalent.

Q: What is the primary reason for substitution?

A: The BU4324FVE-TR is classified as obsolete. The BU4324G-TR is the active equivalent part from the same manufacturer with identical electrical specifications.

Q: Are there compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical regulatory certifications.

Q: What is the difference between SOT-665 and SC-74A/SOT-753 packages?

A: These are different surface mount package form factors with different physical dimensions and PCB footprints. Electrical pin function and count remain identical. PCB redesign is necessary to accommodate the package change.

Q: Is the BU4324G-TR available in the same tape and reel packaging?

A: Yes. The BU4324G-TR is supplied in Tape & Reel (TR) format, matching the supply format of the original part.

Q: Do both parts operate across the same temperature range?

A: Yes. Both the BU4324FVE-TR and BU4324G-TR operate from -40°C to 125°C (TA).