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AP9101CK-BETRG1 Equivalent & Substitute Parts
Part Overview
The AP9101CK-BETRG1 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 with 641 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 constraints necessitate sourcing from available stock levels.
Substiute Parts
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 eligibility for the AP9101CK-BETRG1 is determined by the following criteria:
Primary Substitution Criteria (Mandatory Match):
- Manufacturer: Diodes Incorporated
- 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
- MSL: 1 (Unlimited)
- REACH Status: REACH Unaffected
Variable Parameter (Allowed to Differ):
- Packaging Format: Tape & Reel (TR), Cut Tape (CT), or Cut Tape & Digi-Reel® combinations
- Product Status: Active or Obsolete
- Inventory Availability
All substitute parts listed maintain identical electrical specifications and mechanical compatibility while differing only in packaging delivery format and product lifecycle status.
Parameter Comparison
| Part Number | Manufacturer | Packaging | Product Status | Inventory (Pcs) | Function | Battery Chemistry | Cells | Fault Protection | Temp Range | Package | RoHS |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AP9101CK-BETRG1 | Diodes Inc. | Tape & Reel (TR) | Active | 641 | Battery Protection | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-25 | ROHS3 |
| AP9101CAK-ABTRG1 | Diodes Inc. | Cut Tape & Digi-Reel® | Obsolete | 3100 | Battery Protection | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-25 | ROHS3 |
| AP9101CAK-AKTRG1 | Diodes Inc. | Cut Tape & Digi-Reel® | Obsolete | 8700 | Battery Protection | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-25 | ROHS3 |
| AP9101CAK-ANTRG1 | Diodes Inc. | Cut Tape (CT) | Obsolete | 9300 | Battery Protection | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-25 | ROHS3 |
| AP9101CAK-BRTRG1 | Diodes Inc. | Tape & Reel (TR) | Obsolete | 3946 | Battery Protection | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-25 | ROHS3 |
| AP9101CAK-CPTRG1 | Diodes Inc. | Tape & Reel (TR) | Obsolete | 3732 | Battery Protection | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-25 | ROHS3 |
| AP9101CK-AHTRG1 | Diodes Inc. | Cut Tape & Digi-Reel® | Obsolete | 14500 | Battery Protection | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-25 | ROHS3 |
| AP9101CK-AKTRG1 | Diodes Inc. | Cut Tape (CT) | Obsolete | 3820 | Battery Protection | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-25 | ROHS3 |
| AP9101CK-ASTRG1 | Diodes Inc. | Cut Tape (CT) | Obsolete | 9400 | Battery Protection | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-25 | ROHS3 |
| AP9101CK-AUTRG1 | Diodes Inc. | Cut Tape (CT) | Obsolete | 4300 | Battery Protection | Li-Ion/Polymer | 1 | OC, OV | -40 to 85°C | SOT-25 | ROHS3 |
| BQ29700DSET | Texas Instruments | Cut Tape & Digi-Reel® | Active | 18360 | Battery Protection | Li-Ion/Polymer | 1 | OC, OV, UV, SC | -40 to 85°C | 6-WSON | ROHS3 |
Engineering Selection Recommendations
Diodes Incorporated AP9101 Series (Parametric Equivalents):
All AP9101 variants listed maintain identical electrical and mechanical specifications within the SOT-25 package. Selection among these parts is determined by packaging delivery format requirements:
- Tape & Reel (TR) Format: AP9101CK-BETRG1 (Active), AP9101CAK-BRTRG1 (Obsolete), AP9101CAK-CPTRG1 (Obsolete) — suitable for automated pick-and-place assembly
- Cut Tape (CT) Format: AP9101CAK-ANTRG1 (Obsolete), AP9101CK-AKTRG1 (Obsolete), AP9101CK-ASTRG1 (Obsolete), AP9101CK-AUTRG1 (Obsolete) — suitable for manual assembly or lower-volume applications
- Cut Tape & Digi-Reel® Format: AP9101CAK-ABTRG1 (Obsolete), AP9101CAK-AKTRG1 (Obsolete), AP9101CK-AHTRG1 (Obsolete) — hybrid packaging option
All AP9101 variants are ROHS3 Compliant, REACH Unaffected, and rated for -40°C to 85°C operation.
Texas Instruments BQ29700DSET (Alternative Manufacturer):
The BQ29700DSET is an alternative from a different manufacturer with different package geometry (6-WSON vs. SOT-25). This part provides additional fault protection (Under Voltage and Short Circuit detection) beyond the AP9101 series. Physical package incompatibility requires PCB redesign for implementation. This option is suitable only when design flexibility permits package substitution and enhanced protection features are beneficial.
Frequently Asked Questions (FAQ)
Q: Can I substitute AP9101CK-BETRG1 with any of the listed AP9101 variants?
A: Yes. All AP9101 variants are parametric equivalents with identical electrical specifications and SOT-25 package dimensions. Substitution is valid across all listed part numbers. Differences exist only in packaging delivery format (Tape & Reel, Cut Tape, or hybrid) and product lifecycle status.
Q: What is the difference between Tape & Reel and Cut Tape packaging?
A: Tape & Reel (TR) packaging delivers components on continuous carrier tape suitable for automated assembly equipment. Cut Tape (CT) packaging provides components on tape segments, typically for manual assembly or lower-volume production. Both formats contain identical components in the same SOT-25 package.
Q: Why are some AP9101 variants marked as Obsolete?
A: Obsolete status indicates the part is no longer in active production by the manufacturer. However, these parts remain functionally equivalent and are available from existing inventory. Obsolete parts may have limited future availability.
Q: Can I use BQ29700DSET as a direct replacement for AP9101CK-BETRG1?
A: No. The BQ29700DSET uses a different package (6-WSON vs. SOT-25) and has different pinout. Direct PCB substitution is not possible. This part requires PCB redesign and is suitable only when design flexibility permits package change. The BQ29700DSET provides additional fault protection features (Under Voltage and Short Circuit detection).
Q: Are all listed parts RoHS compliant?
A: Yes. All AP9101 variants and the BQ29700DSET are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.
Q: Which substitute part has the highest inventory availability?
A: AP9101CK-AHTRG1 has the highest inventory at 14,500 units. BQ29700DSET has 18,360 units but requires package redesign for implementation.
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