S-8261ABCMD-G3CT2G Equivalent & Substitute Parts

Part Overview

The S-8261ABCMD-G3CT2G is a Battery Protection IC for single-cell Lithium Ion/Polymer applications manufactured by ABLIC Inc. This active product provides over-current and short-circuit protection in a surface-mount SOT-23-6 package. Substitute parts are identified to support design flexibility, inventory optimization, and supply chain continuity while maintaining functional and electrical equivalence.

Key Parameters

Parameter	Value
Manufacturer	ABLIC Inc.
Category	Power Management (PMIC)
Function	Battery Protection
Battery Chemistry	Lithium Ion/Polymer
Number of Cells	1
Fault Protection	Over Current, Short Circuit
Package / Case	SOT-23-6
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the S-8261ABCMD-G3CT2G are classified into two categories based on parametric equivalence:

Parametric Equivalents (ABLIC Inc. Series):

S-8240ACS-M6T1U
S-8240ADZ-M6T1U
S-8261AAJMD-G2JT2G
S-8261AAJMD-G2JT2U

These parts share identical core functional parameters: single-cell Lithium Ion/Polymer battery protection, over-current and short-circuit fault protection, SOT-23-6 package, -40°C to 85°C operating temperature range, surface-mount technology, ROHS3 compliance, and MSL 1 rating. Differences exist only in packaging format (Tape & Reel vs. Cut Tape) and internal device variants within the S-8240A and S-8261 base product families.

Similar Substitute (Cross-Manufacturer):

BQ29702DSER (Texas Instruments)

This part provides battery protection for single-cell Lithium Ion/Polymer applications with identical operating temperature range and compliance certifications. The BQ29702DSER includes additional over/under voltage protection and uses a 6-WSON package instead of SOT-23-6, requiring PCB layout and footprint redesign.

Parameter Comparison

Part Number	Manufacturer	Function	Battery Chemistry	Cells	Fault Protection	Package	Temp Range	Mounting	RoHS	MSL	Status
S-8261ABCMD-G3CT2G	ABLIC Inc.	Battery Protection	Li-Ion/Polymer	1	OC, SC	SOT-23-6	-40 to 85°C	Surface Mount	ROHS3	1	Active
S-8240ACS-M6T1U	ABLIC Inc.	Battery Protection	Li-Ion/Polymer	1	OC, SC	SOT-23-6	-40 to 85°C	Surface Mount	ROHS3	1	Active
S-8240ADZ-M6T1U	ABLIC Inc.	Battery Protection	Li-Ion/Polymer	1	OC, SC	SOT-23-6	-40 to 85°C	Surface Mount	ROHS3	1	Active
S-8261AAJMD-G2JT2G	ABLIC Inc.	Battery Protection	Li-Ion/Polymer	1	OC, SC	SOT-23-6	-40 to 85°C	Surface Mount	ROHS3	1	Active
S-8261AAJMD-G2JT2U	ABLIC Inc.	Battery Protection	Li-Ion/Polymer	1	OC, SC	SOT-23-6	-40 to 85°C	Surface Mount	ROHS3	1	Active
BQ29702DSER	Texas Instruments	Battery Protection	Li-Ion/Polymer	1	OC, OV, UV, SC	6-WSON	-40 to 85°C	Surface Mount	ROHS3	1	Active

Engineering Selection Recommendations

ABLIC Inc. Parametric Equivalents (S-8240 and S-8261 Series):

These parts are direct functional substitutes with identical electrical specifications and package footprints. Selection among S-8240ACS-M6T1U, S-8240ADZ-M6T1U, S-8261AAJMD-G2JT2G, and S-8261AAJMD-G2JT2U is determined by packaging format availability:

Tape & Reel (TR) format: S-8240ACS-M6T1U, S-8240ADZ-M6T1U, S-8261AAJMD-G2JT2U
Cut Tape (CT) format: S-8261AAJMD-G2JT2G

All maintain ROHS3 compliance, MSL 1 rating, and active product status. Inventory levels vary; S-8261AAJMD-G2JT2G offers highest stock (13,700 pcs).

Texas Instruments BQ29702DSER:

This cross-manufacturer substitute provides single-cell Lithium Ion/Polymer protection with extended fault detection (over/under voltage in addition to over-current and short-circuit). The 6-WSON package requires PCB redesign and is not pin-compatible with SOT-23-6. Selection of BQ29702DSER is appropriate only when design specifications require over/under voltage monitoring and PCB layout modification is feasible. ROHS3 compliance and MSL 1 rating are maintained.

Frequently Asked Questions (FAQ)

Q: Can S-8240ACS-M6T1U directly replace S-8261ABCMD-G3CT2G without PCB modification?

A: Yes. Both parts use SOT-23-6 packaging, identical pin configuration, and equivalent electrical specifications for single-cell Lithium Ion/Polymer battery protection. No PCB layout changes are required.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging is supplied on continuous carrier tape for automated assembly equipment. Cut Tape (CT) packaging is supplied as individual segments cut from the same tape. Both formats contain identical components; selection depends on assembly process requirements and inventory management practices.

Q: Why does BQ29702DSER include over/under voltage protection while S-8261ABCMD-G3CT2G does not?

A: BQ29702DSER is designed with extended protection features for applications requiring voltage monitoring. S-8261ABCMD-G3CT2G provides over-current and short-circuit protection only. Selection depends on application requirements.

Q: Is BQ29702DSER a pin-compatible substitute?

A: No. BQ29702DSER uses 6-WSON packaging while S-8261ABCMD-G3CT2G uses SOT-23-6. PCB footprint and layout redesign is required. Pin assignments differ between packages.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 rating, matching the compliance profile of S-8261ABCMD-G3CT2G.

Q: Which substitute part has the highest inventory availability?

A: S-8261AAJMD-G2JT2G offers 13,700 pcs in stock, the highest among all listed substitutes.

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