S-8211CDB-M5T1U Equivalent & Substitute Parts

Part Overview

The S-8211CDB-M5T1U is a single-cell lithium ion/polymer battery protection IC manufactured by ABLIC Inc. in SOT-23-5 surface mount packaging. This active product provides over-current and short-circuit fault protection for single-cell battery applications. Substitute parts are identified when equivalent functional performance, electrical specifications, and compliance certifications are maintained across alternative manufacturer offerings.

Substiute Parts

S-8211CDB-M5T1U

ABLIC Inc.In Stock: 1145S-8211CDB-M5T1U Datasheet

Current PartRFQ

BQ29729DSER

Texas InstrumentsIn Stock: 6433BQ29729DSER Datasheet

SimilarRFQ

BQ29733DSET

Texas InstrumentsIn Stock: 6080BQ29733DSET Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the S-8211CDB-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 configuration
• Operating Temperature Range: -40°C ~ 85°C (TA)
• Product Status: Active
• Compliance: ROHS3 Compliant, REACH Unaffected
• Mounting Type: Surface Mount

The identified substitute parts BQ29729DSER and BQ29733DSET meet these core criteria. Both are Texas Instruments single-cell lithium ion/polymer battery protection ICs with identical operating temperature ranges, active product status, and equivalent compliance certifications. Package differences (SOT-23-5 versus 6-WSON) represent mechanical variations that may require PCB layout adjustment but do not affect electrical functionality for this protection IC category.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status with ROHS3 compliance and REACH unaffected certification, ensuring regulatory alignment for current and future applications. The S-8211CDB-M5T1U operates within the standard -40°C to 85°C temperature range for consumer and industrial battery protection applications.

BQ29729DSER and BQ29733DSET provide functionally equivalent single-cell lithium ion/polymer protection with extended fault detection including over/under voltage monitoring. The primary distinction between the ABLIC and Texas Instruments options is packaging geometry: SOT-23-5 (5-pin) versus 6-WSON (6-pin). This packaging difference requires PCB footprint modification but does not impact electrical performance for battery protection functionality.

Selection between BQ29729DSER (Cut Tape & Digi-Reel packaging) and BQ29733DSET (Tape & Reel packaging) depends on procurement and assembly requirements rather than technical performance.

Frequently Asked Questions (FAQ)

Q: Can BQ29729DSER or BQ29733DSET directly replace S-8211CDB-M5T1U without PCB modification?

A: No. The S-8211CDB-M5T1U uses SOT-23-5 packaging (5 pins), while both Texas Instruments substitutes use 6-WSON packaging (6 pins). PCB footprint redesign is required. Pin functionality mapping must be verified against respective datasheets.

Q: What is the difference between BQ29729DSER and BQ29733DSET?

A: Both parts are electrically identical. The difference is packaging format: BQ29729DSER is supplied in Cut Tape & Digi-Reel format, while BQ29733DSET is supplied in Tape & Reel format. Selection depends on assembly line requirements.

Q: Do the substitute parts provide additional protection features?

A: Yes. BQ29729DSER and BQ29733DSET include over/under voltage fault protection in addition to the over-current and short-circuit protection provided by S-8211CDB-M5T1U. This represents enhanced functionality for the same application category.

Q: Are all three parts compliant with current regulatory requirements?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and maintain active product status, meeting current regulatory standards for battery protection ICs.

Q: What is the operating temperature range for all three parts?

A: All three parts operate across -40°C to 85°C (TA), suitable for consumer, industrial, and automotive battery protection applications within this thermal envelope.