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S-8241ADSMC-GDST2G Equivalent & Substitute Parts
Part Overview
The S-8241ADSMC-GDST2G is a battery protection IC for single-cell lithium ion/polymer applications manufactured by ABLIC Inc. This component provides over-current and over-voltage fault protection in a surface-mount SOT-23-5 package. 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 maintenance, repair, and legacy system support where this component remains in use.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | S-8241ADSMC-GDST2G |
| 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) |
| Package / Case | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Not For New Designs |
Substitute Part Grouping Explanation
Substitute parts for the S-8241ADSMC-GDST2G are categorized based on the following critical parameters that determine functional compatibility:
Parametric Equivalents share identical electrical specifications and package form factors:
- Battery chemistry: Lithium Ion/Polymer
- Number of cells: 1
- Fault protection: Over Current, Over Voltage
- Operating temperature: -40°C ~ 85°C (TA)
- Package / Case: SC-74A, SOT-753
- Supplier Device Package: SOT-23-5
- Mounting type: Surface Mount
- RoHS compliance: ROHS3 Compliant
- MSL rating: 1 (Unlimited)
Similar Parts maintain functional equivalence but differ in package configuration or fault protection scope:
- Battery chemistry: Lithium Ion/Polymer
- Number of cells: 1
- Operating temperature: -40°C ~ 85°C (TA)
- Mounting type: Surface Mount
- RoHS compliance: ROHS3 Compliant
- MSL rating: 1 (Unlimited)
- Variation: Different package types (SOT-26, 6-WSON) or expanded fault protection features
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Function | Battery Chemistry | Number of Cells | Fault Protection | Operating Temperature | Package / Case | Supplier Device Package | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|
| S-8241ADSMC-GDST2G | ABLIC Inc. | Battery Protection | Lithium Ion/Polymer | 1 | Over Current, Over Voltage | -40°C ~ 85°C | SC-74A, SOT-753 | SOT-23-5 | Not For New Designs | ROHS3 Compliant |
| S-8241ABKMC-GBKT2G | ABLIC Inc. | Battery Protection | Lithium Ion/Polymer | 1 | Over Current, Over Voltage | -40°C ~ 85°C | SC-74A, SOT-753 | SOT-23-5 | Not For New Designs | ROHS3 Compliant |
| S-8241ABPMC-GBPT2G | ABLIC Inc. | Battery Protection | Lithium Ion/Polymer | 1 | Over Current, Over Voltage | -40°C ~ 85°C | SC-74A, SOT-753 | SOT-23-5 | Not For New Designs | ROHS3 Compliant |
| AP9101CAK-AATRG1 | Diodes Incorporated | Battery Protection | Lithium Ion/Polymer | 1 | Over Current, Over Voltage | -40°C ~ 85°C | SC-74A, SOT-753 | SOT-25 | Active | ROHS3 Compliant |
| AP9101CAK-ACTRG1 | Diodes Incorporated | Battery Protection | Lithium Ion/Polymer | 1 | Over Current, Over Voltage | -40°C ~ 85°C | SC-74A, SOT-753 | SOT-25 | Active | ROHS3 Compliant |
| AP9101CAK-ADTRG1 | Diodes Incorporated | Battery Protection | Lithium Ion/Polymer | 1 | Over Current, Over Voltage | -40°C ~ 85°C | SC-74A, SOT-753 | SOT-25 | Active | ROHS3 Compliant |
| AP9101CAK-AETRG1 | Diodes Incorporated | Battery Protection | Lithium Ion/Polymer | 1 | Over Current, Over Voltage | -40°C ~ 85°C | SC-74A, SOT-753 | SOT-25 | Active | ROHS3 Compliant |
| AP9101CAK-AFTRG1 | Diodes Incorporated | Battery Protection | Lithium Ion/Polymer | 1 | Over Current, Over Voltage | -40°C ~ 85°C | SC-74A, SOT-753 | SOT-25 | Active | ROHS3 Compliant |
| AP9101CAK-ABTRG1 | Diodes Incorporated | Battery Protection | Lithium Ion/Polymer | 1 | Over Current, Over Voltage | -40°C ~ 85°C | SC-74A, SOT-753 | SOT-25 | Obsolete | ROHS3 Compliant |
| AP9101CAK6-BMTRG1 | Diodes Incorporated | Battery Protection | Lithium Ion/Polymer | 1 | Over Current, Over Voltage | -40°C ~ 85°C | SOT-23-6 | SOT-26 | Active | ROHS3 Compliant |
| BQ29706DSER | Texas Instruments | Battery Protection | Lithium Ion/Polymer | 1 | Over Current, Over/Under Voltage, Short Circuit | -40°C ~ 85°C | 6-WFDFN | 6-WSON (1.5x1.5) | Active | ROHS3 Compliant |
Engineering Selection Recommendations
ABLIC Inc. Parametric Equivalents (Recommended for Direct Replacement)
S-8241ABKMC-GBKT2G and S-8241ABPMC-GBPT2G are parametric equivalents from the same manufacturer with identical electrical specifications and package configuration. Both parts maintain "Not For New Designs" status consistent with the original part. S-8241ABPMC-GBPT2G offers higher inventory availability (23,400 units) compared to S-8241ABKMC-GBKT2G (5,280 units). Both are ROHS3 compliant with MSL 1 rating.
Diodes Incorporated Active Alternatives (SOT-25 Package)
AP9101CAK-AATRG1, AP9101CAK-ACTRG1, AP9101CAK-ADTRG1, AP9101CAK-AETRG1, and AP9101CAK-AFTRG1 are active production parts from Diodes Incorporated with identical electrical specifications. These parts use SOT-25 package configuration instead of SOT-23-5, requiring PCB layout verification. All maintain ROHS3 compliance and MSL 1 rating. Active product status ensures ongoing availability and support.
Diodes Incorporated SOT-26 Package Alternative
AP9101CAK6-BMTRG1 provides functional equivalence with a different package form factor (SOT-26 vs. SOT-23-5). This part is in active production status and maintains identical fault protection specifications. PCB footprint redesign is required for implementation.
Texas Instruments Extended Protection Alternative
BQ29706DSER from Texas Instruments provides expanded fault protection including short-circuit detection in addition to over-current and over-voltage protection. This part uses a 6-WSON package requiring different PCB layout. Active product status and high inventory (61,600 units) support long-term availability. ROHS3 compliance and MSL 1 rating are maintained.
Obsolete Part Consideration
AP9101CAK-ABTRG1 is classified as obsolete and should be avoided for new procurement despite parametric equivalence.
Frequently Asked Questions (FAQ)
Q: Can S-8241ABPMC-GBPT2G directly replace S-8241ADSMC-GDST2G without PCB modification?
A: Yes. S-8241ABPMC-GBPT2G is a parametric equivalent with identical package configuration (SOT-23-5), electrical specifications, and fault protection features. No PCB layout changes are required.
Q: What is the difference between SOT-23-5 and SOT-25 packages?
A: SOT-23-5 and SOT-25 are both 5-pin surface-mount packages with the same pin count and electrical function. However, they have different physical dimensions and pin spacing. PCB footprint verification is required before substituting parts with different package designations.
Q: Why does BQ29706DSER include short-circuit protection while the original part does not?
A: BQ29706DSER is a different product line from Texas Instruments with expanded protection features. The additional short-circuit detection capability does not prevent functional compatibility but represents a different protection architecture. Verify that the application circuit design accommodates this additional protection function.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All listed substitute parts maintain ROHS3 compliance, consistent with the original S-8241ADSMC-GDST2G specification.
Q: What does "Not For New Designs" status mean for the original part?
A: This designation indicates the part has reached end-of-life and is no longer recommended for new product development. However, it remains available for legacy system support and repair applications. Active production alternatives from Diodes Incorporated and Texas Instruments are recommended for new designs.
Q: Can I use AP9101CAK-ABTRG1 as a substitute?
A: AP9101CAK-ABTRG1 is classified as obsolete. While parametrically equivalent, obsolete parts have uncertain long-term availability and should not be selected for new procurement.
Q: What inventory considerations should guide part selection?
A: S-8241ABPMC-GBPT2G offers the highest inventory availability (23,400 units) among ABLIC equivalents. BQ29706DSER from Texas Instruments provides substantial inventory (61,600 units) with active product status. Diodes Incorporated AP9101 variants offer moderate inventory levels (769–3,100 units) with active production support.
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