AP9101CAK-AETRG1 Equivalent & Substitute Parts

Part Overview

The AP9101CAK-AETRG1 is a Battery Protection IC for single-cell Lithium Ion/Polymer applications, manufactured by Diodes Incorporated. This Surface Mount device in SOT-25 packaging provides Over Current and Over Voltage fault protection. The part is currently Active in product status. Substitute parts are necessary when the primary part becomes unavailable due to inventory constraints, obsolescence of specific packaging variants, or supply chain requirements.

Substiute Parts

AP9101CAK-AETRG1
Diodes IncorporatedIn Stock: 786AP9101CAK-AETRG1 Datasheet
AP9101CAK-AETRG1
Current Part
AP9101CAK-ABTRG1
Diodes IncorporatedIn Stock: 3196AP9101CAK-ABTRG1 Datasheet
AP9101CAK-ABTRG1
Parametric Equivalent
AP9101CAK-AKTRG1
Diodes IncorporatedIn Stock: 8784AP9101CAK-AKTRG1 Datasheet
AP9101CAK-AKTRG1
Parametric Equivalent
AP9101CAK-ANTRG1
Diodes IncorporatedIn Stock: 9316AP9101CAK-ANTRG1 Datasheet
AP9101CAK-ANTRG1
Parametric Equivalent
AP9101CAK-BRTRG1
Diodes IncorporatedIn Stock: 4016AP9101CAK-BRTRG1 Datasheet
AP9101CAK-BRTRG1
Parametric Equivalent
AP9101CAK-CPTRG1
Diodes IncorporatedIn Stock: 3832AP9101CAK-CPTRG1 Datasheet
AP9101CAK-CPTRG1
Parametric Equivalent
AP9101CK-AHTRG1
Diodes IncorporatedIn Stock: 14519AP9101CK-AHTRG1 Datasheet
AP9101CK-AHTRG1
Parametric Equivalent
AP9101CK-AKTRG1
Diodes IncorporatedIn Stock: 3906AP9101CK-AKTRG1 Datasheet
AP9101CK-AKTRG1
Parametric Equivalent
AP9101CK-ASTRG1
Diodes IncorporatedIn Stock: 9508AP9101CK-ASTRG1 Datasheet
AP9101CK-ASTRG1
Parametric Equivalent
AP9101CK-AUTRG1
Diodes IncorporatedIn Stock: 4311AP9101CK-AUTRG1 Datasheet
AP9101CK-AUTRG1
Parametric Equivalent
S-8241ABKMC-GBKT2G
ABLIC Inc.In Stock: 5317S-8241ABKMC-GBKT2G Datasheet
S-8241ABKMC-GBKT2G
Parametric Equivalent
S-8241ABPMC-GBPT2G
ABLIC Inc.In Stock: 23480S-8241ABPMC-GBPT2G Datasheet
S-8241ABPMC-GBPT2G
Parametric Equivalent

Key Parameters

Parameter Value
Manufacturer Diodes Incorporated
Category Power Management (PMIC)
Function Battery Protection
Battery Chemistry Lithium Ion/Polymer
Number of Cells 1
Fault Protection Over Current, Over Voltage
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Supplier Device Package SOT-25
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected

Substitute Part Grouping Explanation

Substitution of the AP9101CAK-AETRG1 is determined by the following criteria:

Primary Substitution Criteria:

  • Identical manufacturer (Diodes Incorporated)
  • Identical base product number (AP9101)
  • Identical function (Battery Protection)
  • Identical battery chemistry (Lithium Ion/Polymer)
  • Identical number of cells (1)
  • Identical fault protection capabilities (Over Current, Over Voltage)
  • Identical operating temperature range (-40°C ~ 85°C)
  • Identical mounting type (Surface Mount)
  • Identical package type (SOT-25 / SC-74A, SOT-753)
  • Identical compliance certifications (ROHS3, REACH Unaffected)

Packaging Variants: Substitute parts differ only in packaging format (Tape & Reel, Cut Tape, or Cut Tape & Digi-Reel®), which affects handling and supply chain logistics but not electrical or mechanical performance.

Cross-Manufacturer Substitution: The S-8241ABKMC-GBKT2G from ABLIC Inc. is a parametric equivalent with identical electrical specifications and operating characteristics, though it uses SOT-23-5 packaging instead of SOT-25.

Parameter Comparison

Part Number Manufacturer Product Status Packaging Battery Chemistry Fault Protection Operating Temperature Package Type RoHS Status
AP9101CAK-AETRG1 Diodes Incorporated Active Tape & Reel (TR) Lithium Ion/Polymer Over Current, Over Voltage -40°C ~ 85°C SOT-25 ROHS3 Compliant
AP9101CAK-ABTRG1 Diodes Incorporated Obsolete Cut Tape (CT) & Digi-Reel® Lithium Ion/Polymer Over Current, Over Voltage -40°C ~ 85°C SOT-25 ROHS3 Compliant
AP9101CAK-AKTRG1 Diodes Incorporated Obsolete Cut Tape (CT) & Digi-Reel® Lithium Ion/Polymer Over Current, Over Voltage -40°C ~ 85°C SOT-25 ROHS3 Compliant
AP9101CAK-ANTRG1 Diodes Incorporated Obsolete Cut Tape (CT) Lithium Ion/Polymer Over Current, Over Voltage -40°C ~ 85°C SOT-25 ROHS3 Compliant
AP9101CAK-BRTRG1 Diodes Incorporated Obsolete Tape & Reel (TR) Lithium Ion/Polymer Over Current, Over Voltage -40°C ~ 85°C SOT-25 ROHS3 Compliant
AP9101CAK-CPTRG1 Diodes Incorporated Obsolete Tape & Reel (TR) Lithium Ion/Polymer Over Current, Over Voltage -40°C ~ 85°C SOT-25 ROHS3 Compliant
AP9101CK-AHTRG1 Diodes Incorporated Obsolete Cut Tape (CT) & Digi-Reel® Lithium Ion/Polymer Over Current, Over Voltage -40°C ~ 85°C SOT-25 ROHS3 Compliant
AP9101CK-AKTRG1 Diodes Incorporated Obsolete Cut Tape (CT) Lithium Ion/Polymer Over Current, Over Voltage -40°C ~ 85°C SOT-25 ROHS3 Compliant
AP9101CK-ASTRG1 Diodes Incorporated Obsolete Cut Tape (CT) Lithium Ion/Polymer Over Current, Over Voltage -40°C ~ 85°C SOT-25 ROHS3 Compliant
AP9101CK-AUTRG1 Diodes Incorporated Obsolete Cut Tape (CT) Lithium Ion/Polymer Over Current, Over Voltage -40°C ~ 85°C SOT-25 ROHS3 Compliant
S-8241ABKMC-GBKT2G ABLIC Inc. Not For New Designs Tape & Reel (TR) Lithium Ion/Polymer Over Current, Over Voltage -40°C ~ 85°C SOT-23-5 ROHS3 Compliant

Engineering Selection Recommendations

Diodes Incorporated AP9101 Series (Same Manufacturer): All AP9101 variants from Diodes Incorporated are electrically and mechanically equivalent to the AP9101CAK-AETRG1. Selection among these parts should be based on packaging availability and supply chain requirements. The primary part (AP9101CAK-AETRG1) maintains Active product status, making it the preferred choice for new designs. Obsolete variants remain functionally compatible but should be used only when the Active part is unavailable.

Cross-Manufacturer Alternative (ABLIC Inc.): The S-8241ABKMC-GBKT2G provides parametric equivalence with identical electrical specifications and operating characteristics. However, this part carries "Not For New Designs" status and uses SOT-23-5 packaging instead of SOT-25. PCB layout modifications are required to accommodate the different package footprint. This option is suitable only for legacy designs or when Diodes Incorporated parts are unavailable.

Compliance Considerations: All listed substitutes maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory compatibility across all options.

Frequently Asked Questions (FAQ)

Q: Can I substitute AP9101CAK-AETRG1 with any other AP9101 variant? A: Yes. All AP9101 variants share identical electrical specifications, battery chemistry support, fault protection capabilities, and operating temperature range. Differences exist only in packaging format (Tape & Reel, Cut Tape, or Digi-Reel®), which affects supply chain handling but not device performance.

Q: What is the difference between Tape & Reel and Cut Tape packaging? A: Tape & Reel (TR) packaging supplies components on continuous tape suitable for automated pick-and-place assembly. Cut Tape (CT) provides individual tape segments. Digi-Reel® is a proprietary format combining benefits of both. All formats contain identical components; packaging choice depends on assembly equipment and volume requirements.

Q: Can I use S-8241ABKMC-GBKT2G as a direct replacement? A: The S-8241ABKMC-GBKT2G is a parametric equivalent with identical electrical and protection specifications. However, it uses SOT-23-5 packaging instead of SOT-25, requiring PCB footprint changes. Additionally, this part carries "Not For New Designs" status. Use only when AP9101 parts are unavailable and PCB redesign is feasible.

Q: Are all substitutes ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory compatibility for applications requiring these certifications.

Q: Why are some AP9101 variants marked as Obsolete? A: Obsolete status indicates that Diodes Incorporated has discontinued active production of those specific packaging variants. The AP9101CAK-AETRG1 (Active status) remains the current production part. Obsolete variants may still be available from inventory but should not be selected for new designs.

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