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S-8241ACWMC-GCWT2G Equivalent & Substitute Parts
Part Overview
The S-8241ACWMC-GCWT2G is a single-cell lithium ion/polymer battery protection IC manufactured by ABLIC Inc. in SOT-23-5 surface mount packaging. This component provides over-current and over-voltage fault protection for single-cell battery applications. The part is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent and substitute parts is necessary for ongoing production support, legacy system maintenance, and design flexibility when the primary part becomes unavailable.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | S-8241ACWMC-GCWT2G |
| Manufacturer | ABLIC Inc. |
| Category | Power Management (PMIC) |
| Function | Battery Protection |
| Battery Chemistry | Lithium Ion/Polymer |
| Number of Cells | 1 |
| Fault Protection | Over Current, Over Voltage |
| Operating Temperature Range | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Not For New Designs |
Substitute Part Grouping Explanation
Substitution eligibility for the S-8241ACWMC-GCWT2G is determined by the following critical parameters:
- Battery Chemistry: Lithium Ion/Polymer
- Number of Cells: Single-cell (1)
- Fault Protection: Over Current and Over Voltage capability
- Operating Temperature Range: -40°C ~ 85°C (TA)
- Mounting Type: Surface Mount
- RoHS Compliance: ROHS3 Compliant
Substitute parts are grouped into two categories:
Parametric Equivalents (ABLIC Inc.): Parts S-8241ABKMC-GBKT2G and S-8241ABPMC-GBPT2G share identical electrical specifications, battery chemistry, cell count, fault protection features, temperature range, and packaging with the main part. These represent direct functional replacements within the same manufacturer's product line.
Parametric Equivalents (Diodes Incorporated AP9101 Series): Parts AP9101CAK-AATRG1, AP9101CAK-ABTRG1, AP9101CAK-ACTRG1, AP9101CAK-ADTRG1, AP9101CAK-AETRG1, and AP9101CAK-AFTRG1 meet all critical substitution parameters: single-cell lithium ion/polymer protection, over-current and over-voltage fault protection, identical temperature range, surface mount configuration, and ROHS3 compliance. Package designation differs (SOT-25 vs. SOT-23-5) but both are SC-74A, SOT-753 footprint variants.
Similar Parts (Texas Instruments BQ297xx Series): Parts BQ29703DSER and BQ29717DSET provide single-cell lithium ion/polymer battery protection with extended fault protection (over-current, over/under-voltage, and short-circuit). These use 6-WSON packaging rather than SOT-23-5, requiring PCB layout modification. Both maintain the -40°C ~ 85°C operating range and ROHS3 compliance.
Parameter Comparison
| Part Number | Manufacturer | Battery Chemistry | Cells | Fault Protection | Temp Range | Package | Product Status | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|
| S-8241ACWMC-GCWT2G | ABLIC Inc. | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-23-5 | Not For New Designs | 1,126 |
| S-8241ABKMC-GBKT2G | ABLIC Inc. | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-23-5 | Not For New Designs | 5,280 |
| S-8241ABPMC-GBPT2G | ABLIC Inc. | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-23-5 | Not For New Designs | 23,400 |
| AP9101CAK-AATRG1 | Diodes Incorporated | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-25 | Active | 977 |
| AP9101CAK-ABTRG1 | Diodes Incorporated | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-25 | Obsolete | 3,100 |
| AP9101CAK-ACTRG1 | Diodes Incorporated | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-25 | Active | 886 |
| AP9101CAK-ADTRG1 | Diodes Incorporated | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-25 | Active | 825 |
| AP9101CAK-AETRG1 | Diodes Incorporated | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-25 | Active | 769 |
| AP9101CAK-AFTRG1 | Diodes Incorporated | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-25 | Active | 876 |
| BQ29703DSER | Texas Instruments | Li-Ion/Polymer | 1 | OC, OV/UV, SC | -40 to 85°C | 6-WSON | Active | 18,025 |
| BQ29717DSET | Texas Instruments | Li-Ion/Polymer | 1 | OC, OV/UV, SC | -40 to 85°C | 6-WSON | Active | 1,854 |
Engineering Selection Recommendations
For Direct Replacement (No PCB Modification):
S-8241ABPMC-GBPT2G is the preferred parametric equivalent, offering the highest inventory availability (23,400 units) while maintaining identical electrical specifications, package footprint, and compliance certifications. S-8241ABKMC-GBKT2G provides an alternative with adequate stock (5,280 units).
For Active Product Status Requirement:
The Diodes Incorporated AP9101 series (AP9101CAK-AATRG1, AP9101CAK-ACTRG1, AP9101CAK-ADTRG1, AP9101CAK-AETRG1, AP9101CAK-AFTRG1) are classified as Active products, suitable for new production designs. All maintain ROHS3 compliance and REACH Unaffected status. Package footprint compatibility (SC-74A, SOT-753) ensures PCB layout compatibility despite SOT-25 designation.
For Extended Fault Protection with PCB Redesign:
BQ29703DSER and BQ29717DSET provide enhanced protection (short-circuit detection in addition to over-current and over-voltage) with Active product status. These require PCB layout modification due to 6-WSON packaging. BQ29703DSER offers superior inventory (18,025 units).
All substitute parts maintain the -40°C ~ 85°C operating temperature range, ROHS3 compliance, and MSL 1 rating of the original part.
Frequently Asked Questions (FAQ)
Q: Can S-8241ABPMC-GBPT2G be used as a direct replacement for S-8241ACWMC-GCWT2G?
A: Yes. Both parts are ABLIC Inc. single-cell lithium ion/polymer battery protection ICs with identical electrical specifications, fault protection features (over-current and over-voltage), operating temperature range (-40°C ~ 85°C), and SOT-23-5 packaging. No PCB modification is required.
Q: What is the difference between SOT-23-5 and SOT-25 packaging?
A: Both designations refer to the same physical footprint (SC-74A, SOT-753). The difference lies in internal lead configuration and pin assignment. Diodes Incorporated AP9101 series parts use SOT-25 designation but maintain footprint compatibility with the original SOT-23-5 package. Pin-to-pin verification against device datasheets is required before substitution.
Q: Why are the Diodes Incorporated AP9101 parts listed as "Active" while the ABLIC parts are "Not For New Designs"?
A: Product status reflects manufacturer support and design recommendations. Active status indicates the manufacturer continues production and supports new designs. "Not For New Designs" indicates end-of-life status. For legacy system maintenance, either status is acceptable. For new production, Active parts are preferred.
Q: Can Texas Instruments BQ29703DSER replace the S-8241ACWMC-GCWT2G without PCB changes?
A: No. BQ29703DSER uses 6-WSON packaging instead of SOT-23-5, requiring PCB layout modification. However, it provides equivalent single-cell lithium ion/polymer protection with extended fault detection (short-circuit protection). This substitution is suitable only when PCB redesign is feasible.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental certifications.
Q: Which substitute part has the highest inventory availability?
A: S-8241ABPMC-GBPT2G offers the highest stock level at 23,400 units, followed by BQ29703DSER at 18,025 units.
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