BU4841G-TR Equivalent & Substitute Parts

Part Overview

The BU4841G-TR is a supervisor integrated circuit from Rohm Semiconductor designed for power management applications. It functions as a simple reset/power-on reset device with open drain or open collector output, monitoring a single voltage channel. The device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for new designs and ongoing production requirements. The BU4842G-TR serves as the manufacturer-recommended substitute, offering active product status and improved availability.

Substiute Parts

BU4841G-TR

Rohm SemiconductorIn Stock: 802BU4841G-TR Datasheet

Current PartRFQ

BU4842G-TR

Rohm SemiconductorIn Stock: 3181BU4842G-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BU4841G-TR is determined by the following critical parameters that must remain consistent:

• Functional Type: Simple Reset/Power-On Reset supervisor
• Number of Channels: Single voltage monitoring channel
• Output Configuration: Open Drain or Open Collector
• Reset Logic: Active Low
• Package Type: 5-SSOP (SC-74A, SOT-753)
• Operating Temperature Range: -40°C ~ 125°C (TA)
• Mounting Technology: Surface Mount

The BU4842G-TR qualifies as a substitute based on matching all critical parameters. The voltage threshold difference (4.1V vs. 4.2V) represents a minor specification variation within the supervisor IC family and does not preclude substitution when the application circuit design accommodates this tolerance.

Parameter Comparison

Engineering Selection Recommendations

The BU4842G-TR is the manufacturer-recommended substitute for the obsolete BU4841G-TR. Both devices maintain identical compliance certifications (ROHS3 Compliant, REACH Unaffected) and regulatory classifications (ECCN: EAR99, HTSUS: 8542.39.0001). The BU4842G-TR offers the advantage of active product status with significantly higher inventory availability (3100 pcs vs. 740 pcs), ensuring supply chain continuity for production and new design implementations. The voltage threshold specification difference of 0.1V (4.1V to 4.2V) is a minor parameter variation within the supervisor IC family and does not impact functional compatibility when circuit design parameters are within normal tolerance ranges.

Frequently Asked Questions (FAQ)

Q: Can the BU4842G-TR be used as a direct replacement for the BU4841G-TR in existing designs?

A: Yes. Both devices share identical package types (5-SSOP, SC-74A, SOT-753), mounting technology (Surface Mount), functional classification (Simple Reset/Power-On Reset), output configuration (Open Drain or Open Collector), and operating temperature range (-40°C ~ 125°C). The voltage threshold difference of 0.1V represents a minor specification variation within the supervisor IC family.

Q: What is the primary reason for substitution?

A: The BU4841G-TR is classified as obsolete. The BU4842G-TR is the active alternative with manufacturer recommendation, ensuring long-term availability and supply chain reliability.

Q: Are there any package or pinout differences between these devices?

A: No. Both devices use identical packaging: SC-74A, SOT-753 with 5-SSOP supplier device package configuration. Pinout compatibility is maintained.

Q: Do both devices meet the same compliance standards?

A: Yes. Both the BU4841G-TR and BU4842G-TR are ROHS3 Compliant, REACH Unaffected, and share identical regulatory classifications (ECCN: EAR99, HTSUS: 8542.39.0001).

Q: What is the inventory status difference?

A: The BU4841G-TR has 740 pcs available (obsolete status). The BU4842G-TR has 3100 pcs available (active status), providing superior supply chain availability for production requirements.