AP9101CK-BATRG1 Equivalent & Substitute Parts

Part Overview

The AP9101CK-BATRG1 is a battery protection IC for single-cell lithium-ion and lithium-polymer applications, manufactured by Diodes Incorporated. This Surface Mount Device (SMD) in SOT-25 packaging provides over-current and over-voltage fault protection. The part is currently in Active product status with 779 units in stock.

Substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when inventory from different distribution channels is needed to meet production schedules.

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 Range	-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 AP9101CK-BATRG1 is determined by the following criteria:

Primary Substitution Criteria (Must Match):

Manufacturer: Diodes Incorporated
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-25
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Variable Parameter (Allowed to Differ):

Packaging Format: Tape & Reel (TR), Cut Tape (CT), or Cut Tape & Digi-Reel® combinations
Product Status: Active or Obsolete variants within the AP9101 base product family

All substitute parts listed maintain identical electrical specifications, thermal characteristics, and compliance certifications. Differences exist only in distribution packaging and product lifecycle status.

Parameter Comparison

Part Number	Manufacturer	Packaging	Product Status	Inventory (Pcs)	Battery Chemistry	Fault Protection	Operating Temp	Package Type	RoHS Status
AP9101CK-BATRG1	Diodes Incorporated	Tape & Reel (TR)	Active	779	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-25	ROHS3 Compliant
AP9101CAK-ABTRG1	Diodes Incorporated	Cut Tape (CT) & Digi-Reel®	Obsolete	3100	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-25	ROHS3 Compliant
AP9101CAK-AKTRG1	Diodes Incorporated	Cut Tape (CT) & Digi-Reel®	Obsolete	8700	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-25	ROHS3 Compliant
AP9101CAK-ANTRG1	Diodes Incorporated	Cut Tape (CT)	Obsolete	9300	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-25	ROHS3 Compliant
AP9101CAK-BRTRG1	Diodes Incorporated	Tape & Reel (TR)	Obsolete	3946	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-25	ROHS3 Compliant
AP9101CAK-CPTRG1	Diodes Incorporated	Tape & Reel (TR)	Obsolete	3732	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-25	ROHS3 Compliant
AP9101CK-AHTRG1	Diodes Incorporated	Cut Tape (CT) & Digi-Reel®	Obsolete	14500	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-25	ROHS3 Compliant
AP9101CK-AKTRG1	Diodes Incorporated	Cut Tape (CT)	Obsolete	3820	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-25	ROHS3 Compliant
AP9101CK-ASTRG1	Diodes Incorporated	Cut Tape (CT)	Obsolete	9400	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-25	ROHS3 Compliant
AP9101CK-AUTRG1	Diodes Incorporated	Cut Tape (CT)	Obsolete	4300	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-25	ROHS3 Compliant
S-8241ABKMC-GBKT2G	ABLIC Inc.	Tape & Reel (TR)	Not For New Designs	5280	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-23-5	ROHS3 Compliant

Engineering Selection Recommendations

For Active Production (Recommended Primary Choice): AP9101CK-BATRG1 remains the primary selection for new designs. This part maintains Active product status with established supply chain support and full lifecycle commitment from Diodes Incorporated.

For Tape & Reel Packaging Requirement: AP9101CAK-BRTRG1 and AP9101CAK-CPTRG1 provide equivalent electrical and thermal performance in Tape & Reel format. Both are marked Obsolete but maintain full parametric compatibility. Selection between these depends on inventory availability and supply chain logistics.

For Cut Tape Packaging Requirement: AP9101CAK-ANTRG1, AP9101CK-AKTRG1, AP9101CK-ASTRG1, and AP9101CK-AUTRG1 provide equivalent performance in Cut Tape or Cut Tape & Digi-Reel® formats. All are Obsolete variants but maintain identical electrical specifications and compliance certifications.

For High-Volume Inventory Access: AP9101CK-AHTRG1 offers the largest available inventory (14,500 units) while maintaining full parametric equivalence and ROHS3 compliance.

Cross-Manufacturer Alternative (Not Recommended for Direct Substitution): S-8241ABKMC-GBKT2G from ABLIC Inc. differs in package type (SOT-23-5 versus SOT-25) and carries "Not For New Designs" status. This part is not electrically interchangeable due to package differences and should not be used as a direct substitute without PCB redesign.

Frequently Asked Questions (FAQ)

Q: Can I use an Obsolete variant in place of the Active AP9101CK-BATRG1? A: Yes. All Diodes Incorporated AP9101 variants listed maintain identical electrical specifications, thermal performance, fault protection characteristics, and compliance certifications. Product status reflects lifecycle phase only and does not affect functional equivalence.

Q: What is the difference between Tape & Reel and Cut Tape packaging? A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, suitable for high-speed automated assembly. Cut Tape (CT) supplies components on tape segments cut to specific lengths, typically for lower-volume or manual assembly processes. Electrical performance is identical; selection depends on assembly equipment compatibility.

Q: Are Cut Tape & Digi-Reel® variants different from standard Cut Tape? A: Cut Tape & Digi-Reel® is a hybrid packaging format combining cut tape segments with Digi-Reel® carrier technology for improved handling and reduced waste. Electrical specifications remain identical to standard Cut Tape variants.

Q: Why is S-8241ABKMC-GBKT2G listed but not recommended? A: S-8241ABKMC-GBKT2G uses SOT-23-5 package geometry, which differs from the SOT-25 package of the AP9101 series. Direct substitution requires PCB layout modification and is not pin-compatible. This part is listed as a functional alternative only for applications where PCB redesign is acceptable.

Q: Can I mix different AP9101 variants in the same production batch? A: Yes. All Diodes Incorporated AP9101 variants are parametrically equivalent and can be used interchangeably within the same assembly without functional impact. Packaging format differences do not affect electrical performance or reliability.

Q: What compliance certifications apply to all listed substitutes? A: All Diodes Incorporated AP9101 variants maintain ROHS3 compliance, REACH Unaffected status, and Moisture Sensitivity Level 1 (Unlimited). These certifications are consistent across all variants regardless of product status or packaging format.

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