S-8211CDG-M5T1U Equivalent & Substitute Parts

Part Overview

The S-8211CDG-M5T1U is a Battery Protection IC for single-cell Lithium Ion/Polymer applications manufactured by ABLIC Inc. This component provides over-current and short-circuit protection in a compact SOT-23-5 surface mount package. The part is currently in active production status with 853 units in stock.

Substitute parts are identified when equivalent functional performance can be achieved within the allowed electrical and mechanical parameters of single-cell lithium battery protection applications. Alternative models may be required due to supply availability, packaging preferences, or specific design constraints.

Substiute Parts

S-8211CDG-M5T1U

ABLIC Inc.In Stock: 948S-8211CDG-M5T1U Datasheet

Current PartRFQ

BQ29729DSER

Texas InstrumentsIn Stock: 6433BQ29729DSER Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the S-8211CDG-M5T1U is determined by the following core parameters:

• Function: Battery Protection IC for single-cell applications
• Battery Chemistry: Lithium Ion/Polymer support
• Number of Cells: Single-cell (1 cell) configuration
• Fault Protection: Minimum requirement of Over Current and Short Circuit protection
• Operating Temperature: -40°C to 85°C range
• Mounting Type: Surface Mount
• Product Status: Active production
• Compliance: ROHS3 Compliant, REACH Unaffected

The BQ29729DSER from Texas Instruments meets all substitution criteria. While it employs a different package format (6-WSON versus SOT-23-5), it maintains functional equivalence for single-cell lithium battery protection with identical operating temperature range and compliance certifications. The BQ29729DSER provides additional over/under voltage protection beyond the base requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the S-8211CDG-M5T1U and BQ29729DSER are active production components with ROHS3 compliance and REACH unaffected status, making either suitable for new designs. Selection between these parts is determined by packaging constraints and PCB layout requirements.

The S-8211CDG-M5T1U in SOT-23-5 package is appropriate for designs with space constraints favoring smaller footprints. The BQ29729DSER in 6-WSON package provides a larger thermal footprint and may be preferred in applications requiring enhanced thermal dissipation. Both components operate across the identical temperature range and provide the required protection functions for single-cell lithium battery applications.

Frequently Asked Questions (FAQ)

Q: Can BQ29729DSER replace S-8211CDG-M5T1U in existing designs?

A: Functional replacement is possible provided PCB layout accommodates the 6-WSON (1.5x1.5) package footprint instead of SOT-23-5. Both components provide single-cell lithium battery protection with identical operating temperature specifications and compliance certifications.

Q: What is the primary difference between these two parts?

A: The main differences are package format (SOT-23-5 versus 6-WSON) and fault protection scope. The BQ29729DSER includes over/under voltage protection in addition to over-current and short-circuit protection provided by the S-8211CDG-M5T1U.

Q: Are both parts suitable for new product development?

A: Yes. Both components maintain active production status with unlimited moisture sensitivity level (MSL 1) ratings, making them appropriate for new designs without shelf-life constraints.

Q: What are the package considerations for substitution?

A: The S-8211CDG-M5T1U uses a 5-pin SOT-23 package with smaller footprint. The BQ29729DSER uses a 6-pin WSON package with slightly larger dimensions. PCB layout and available board space determine which package is suitable for your application.