AP9101CK6-BUTRG1 Equivalent & Substitute Parts

Part Overview

The AP9101CK6-BUTRG1 is a Battery Protection IC for single-cell Lithium Ion/Polymer applications, manufactured by Diodes Incorporated. This Surface Mount device in SOT-23-6 package provides Over Current and Over Voltage fault protection. The part is currently Active and available in Tape & Reel packaging with 718 pieces in stock.

Substitute parts are necessary when the primary part reaches end-of-life status, inventory constraints occur, or alternative packaging formats are required for manufacturing flexibility. The AP9101 base product family includes multiple variants with equivalent electrical and mechanical specifications but different product statuses and packaging options.

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	SOT-23-6
Supplier Device Package	SOT-26
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution within the AP9101 family is determined by the following criteria:

Electrical Equivalence: All substitute parts maintain identical Battery Chemistry (Lithium Ion/Polymer), single-cell configuration, Fault Protection (Over Current, Over Voltage), and Operating Temperature Range (-40°C ~ 85°C).

Mechanical Compatibility: All parts share the same Package/Case (SOT-23-6) and Supplier Device Package (SOT-26), ensuring pin-for-pin compatibility and identical PCB footprints.

Regulatory Compliance: All parts are ROHS3 Compliant and REACH Unaffected, meeting the same environmental standards.

Packaging Format Variations: Substitute parts are available in two packaging formats: Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel®. These represent different supply chain configurations with no electrical or mechanical differences.

Moisture Sensitivity: Most substitute parts carry MSL 1 (Unlimited). One variant (AP9101CK6-ADTRG1) carries MSL 3 (168 Hours), which requires controlled storage conditions but remains electrically equivalent.

Product Status Considerations: The primary part AP9101CK6-BUTRG1 is Active. Substitute parts carry statuses of Obsolete or Not For New Designs, indicating they are available for replacement purposes but not recommended for new design implementations.

Parameter Comparison

Part Number	Manufacturer	Packaging	Product Status	Battery Chemistry	Fault Protection	Operating Temperature	Package / Case	RoHS Status	MSL	Inventory (Pcs)
AP9101CK6-BUTRG1	Diodes Incorporated	Tape & Reel (TR)	Active	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-23-6	ROHS3 Compliant	1 (Unlimited)	718
AP9101CAK6-ABTRG1	Diodes Incorporated	Cut Tape (CT) & Digi-Reel®	Obsolete	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-23-6	ROHS3 Compliant	1 (Unlimited)	4400
AP9101CAK6-ANTRG1	Diodes Incorporated	Cut Tape (CT) & Digi-Reel®	Obsolete	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-23-6	ROHS3 Compliant	1 (Unlimited)	4300
AP9101CAK6-ATTRG1	Diodes Incorporated	Tape & Reel (TR)	Not For New Designs	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-23-6	ROHS3 Compliant	1 (Unlimited)	9400
AP9101CAK6-BVTRG1	Diodes Incorporated	Tape & Reel (TR)	Obsolete	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-23-6	ROHS3 Compliant	1 (Unlimited)	18700
AP9101CK6-ADTRG1	Diodes Incorporated	Tape & Reel (TR)	Obsolete	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-23-6	ROHS3 Compliant	3 (168 Hours)	12460
AP9101CK6-AETRG1	Diodes Incorporated	Cut Tape (CT) & Digi-Reel®	Obsolete	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-23-6	ROHS3 Compliant	1 (Unlimited)	1272
AP9101CK6-ANTRG1	Diodes Incorporated	Tape & Reel (TR)	Obsolete	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-23-6	ROHS3 Compliant	1 (Unlimited)	22713
AP9101CK6-AXTRG1	Diodes Incorporated	Tape & Reel (TR)	Obsolete	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-23-6	ROHS3 Compliant	1 (Unlimited)	59100
AP9101CK6-AYTRG1	Diodes Incorporated	Tape & Reel (TR)	Obsolete	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-23-6	ROHS3 Compliant	1 (Unlimited)	11850
AP9101CK6-BJTRG1	Diodes Incorporated	Tape & Reel (TR)	Obsolete	Lithium Ion/Polymer	Over Current, Over Voltage	-40°C ~ 85°C	SOT-23-6	ROHS3 Compliant	1 (Unlimited)	1390

Engineering Selection Recommendations

For Active Production: AP9101CK6-BUTRG1 remains the primary selection as the only Active status part in this family. It is available in Tape & Reel packaging with MSL 1 (Unlimited) storage requirements.

For Replacement or Secondary Supply: Parts with Obsolete status are electrically and mechanically equivalent but are no longer in active production. These are suitable for replacement applications where inventory exists. AP9101CAK6-ATTRG1 carries Not For New Designs status, indicating it is available for replacement but should not be selected for new design implementations.

Packaging Considerations: Tape & Reel (TR) variants are suitable for automated assembly lines. Cut Tape (CT) & Digi-Reel® variants provide alternative supply chain options. Both formats are mechanically compatible with identical SOT-23-6 footprints.

Moisture Sensitivity: AP9101CK6-ADTRG1 carries MSL 3 (168 Hours), requiring controlled storage and handling within 168 hours of package opening. All other variants carry MSL 1 (Unlimited) with no storage time restrictions.

Regulatory Compliance: All parts maintain ROHS3 Compliance and REACH Unaffected status, meeting current environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can AP9101CK6-BUTRG1 be directly replaced with any of the listed substitute parts?

A: Yes. All substitute parts share identical electrical specifications (Lithium Ion/Polymer single-cell protection with Over Current and Over Voltage fault detection), mechanical compatibility (SOT-23-6 package), and regulatory compliance (ROHS3, REACH Unaffected). Pin-for-pin substitution is supported across all variants.

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

A: Both are supply chain formats with no electrical or mechanical differences. Tape & Reel (TR) is standard for high-volume automated assembly. Cut Tape (CT) & Digi-Reel® provides alternative sourcing options. PCB footprints and component specifications remain identical.

Q: Why do some parts carry Obsolete status while others are Active?

A: Product status reflects manufacturing lifecycle. Active parts are in current production. Obsolete parts are no longer manufactured but remain available from existing inventory. Not For New Designs indicates the part is available but should not be selected for new circuit designs.

Q: What does MSL 3 (168 Hours) mean for AP9101CK6-ADTRG1?

A: Moisture Sensitivity Level 3 requires that the component be used within 168 hours of package opening in standard conditions. MSL 1 (Unlimited) parts have no time restrictions. Both are electrically equivalent; MSL difference affects storage and handling procedures only.

Q: Are all parts ROHS3 compliant?

A: Yes. All listed parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: Which substitute part offers the highest inventory availability?

A: AP9101CK6-AXTRG1 offers the highest inventory with 59,100 pieces in stock. AP9101CK6-ANTRG1 provides 22,713 pieces. Both are Tape & Reel format with MSL 1 (Unlimited).

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