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AP9101CK-ASTRG1 Equivalent & Substitute Parts
Part Overview
The AP9101CK-ASTRG1 is a battery protection integrated circuit manufactured by Diodes Incorporated, designed for single-cell lithium-ion and lithium-polymer battery applications. This PMIC (Power Management IC) provides over-current and over-voltage fault protection in a compact SOT-25 surface-mount package. The main part carries an obsolete product status, making equivalent substitute parts necessary for ongoing design support and production continuity.
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 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 eligibility for the AP9101CK-ASTRG1 is determined by strict parametric equivalence across the following critical criteria:
Mandatory Matching Parameters:
- Manufacturer: Diodes Incorporated
- Base Product Number: AP9101
- 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
Variable Parameters (Non-Critical for Substitution):
- Product Status (Active or Obsolete)
- Packaging Format (Cut Tape, Tape & Reel, or Digi-Reel)
- Inventory Availability
All substitute parts listed maintain identical electrical and mechanical specifications, differing only in packaging configuration and product lifecycle status.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Packaging | Battery Chemistry | Fault Protection | Operating Temp | Package Type | RoHS Status | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|
| AP9101CK-ASTRG1 | Diodes Incorporated | Obsolete | Cut Tape (CT) | Lithium Ion/Polymer | Over Current, Over Voltage | -40°C ~ 85°C | SOT-25 | ROHS3 Compliant | 9400 |
| AP9101CAK-AATRG1 | Diodes Incorporated | Active | Tape & Reel (TR) | Lithium Ion/Polymer | Over Current, Over Voltage | -40°C ~ 85°C | SOT-25 | ROHS3 Compliant | 977 |
| 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 | 3100 |
| AP9101CAK-ACTRG1 | Diodes Incorporated | Active | Tape & Reel (TR) | Lithium Ion/Polymer | Over Current, Over Voltage | -40°C ~ 85°C | SOT-25 | ROHS3 Compliant | 886 |
| AP9101CAK-ADTRG1 | Diodes Incorporated | Active | Tape & Reel (TR) | Lithium Ion/Polymer | Over Current, Over Voltage | -40°C ~ 85°C | SOT-25 | ROHS3 Compliant | 825 |
| AP9101CAK-AETRG1 | Diodes Incorporated | Active | Tape & Reel (TR) | Lithium Ion/Polymer | Over Current, Over Voltage | -40°C ~ 85°C | SOT-25 | ROHS3 Compliant | 769 |
| AP9101CAK-AFTRG1 | Diodes Incorporated | Active | Tape & Reel (TR) | Lithium Ion/Polymer | Over Current, Over Voltage | -40°C ~ 85°C | SOT-25 | ROHS3 Compliant | 876 |
| AP9101CAK-AGTRG1 | Diodes Incorporated | Active | Tape & Reel (TR) | Lithium Ion/Polymer | Over Current, Over Voltage | -40°C ~ 85°C | SOT-25 | ROHS3 Compliant | 732 |
| AP9101CAK-AHTRG1 | Diodes Incorporated | Active | Tape & Reel (TR) | Lithium Ion/Polymer | Over Current, Over Voltage | -40°C ~ 85°C | SOT-25 | ROHS3 Compliant | 719 |
| AP9101CAK-AITRG1 | Diodes Incorporated | Active | Tape & Reel (TR) | Lithium Ion/Polymer | Over Current, Over Voltage | -40°C ~ 85°C | SOT-25 | ROHS3 Compliant | 785 |
| AP9101CAK-AJTRG1 | Diodes Incorporated | Active | Tape & Reel (TR) | Lithium Ion/Polymer | Over Current, Over Voltage | -40°C ~ 85°C | SOT-25 | ROHS3 Compliant | 1069 |
Engineering Selection Recommendations
For Active Product Designs: Select from the Active status variants: AP9101CAK-AATRG1, AP9101CAK-ACTRG1, AP9101CAK-ADTRG1, AP9101CAK-AETRG1, AP9101CAK-AFTRG1, AP9101CAK-AGTRG1, AP9101CAK-AHTRG1, AP9101CAK-AITRG1, or AP9101CAK-AJTRG1. These parts maintain full manufacturer support and are recommended for new designs and production continuity.
For Obsolete Part Replacement: The AP9101CK-ASTRG1 (obsolete, Cut Tape packaging) can be directly replaced by AP9101CAK-ABTRG1 (obsolete, Cut Tape & Digi-Reel packaging) or any Active status variant. All maintain identical electrical performance and package footprint.
Packaging Considerations: Cut Tape (CT) packaging is suitable for manual assembly and small-volume production. Tape & Reel (TR) packaging is optimized for automated pick-and-place assembly and high-volume manufacturing. Selection depends on assembly process requirements, not electrical compatibility.
Compliance Status: All listed parts are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 (unlimited moisture sensitivity). No additional environmental qualification is required when substituting between any listed variants.
Frequently Asked Questions (FAQ)
Q: Can I substitute AP9101CK-ASTRG1 with any of the listed AP9101CAK variants? A: Yes. All listed parts share identical electrical specifications, fault protection characteristics, operating temperature range, and package footprint. Substitution is electrically and mechanically valid.
Q: What is the difference between Cut Tape and Tape & Reel packaging? A: Cut Tape (CT) is supplied in individual strips suitable for manual handling and small-quantity assembly. Tape & Reel (TR) is supplied on continuous reels optimized for automated assembly equipment. Both formats contain the same component in the same SOT-25 package.
Q: Why is AP9101CK-ASTRG1 marked as obsolete? A: Obsolete status indicates the manufacturer has discontinued active production and support. Active variants (AP9101CAK-AATRG1 through AP9101CAK-AJTRG1) provide equivalent functionality with ongoing manufacturer support.
Q: Are there any electrical differences between the main part and substitute parts? A: No. All parts provide identical battery protection functionality, fault detection (over-current and over-voltage), operating temperature range (-40°C to 85°C), and compliance certifications.
Q: Which variant should I select for new production? A: Select any Active status part (AP9101CAK-AATRG1, AP9101CAK-ACTRG1, AP9101CAK-ADTRG1, AP9101CAK-AETRG1, AP9101CAK-AFTRG1, AP9101CAK-AGTRG1, AP9101CAK-AHTRG1, AP9101CAK-AITRG1, or AP9101CAK-AJTRG1). Choose packaging based on your assembly process: Cut Tape for manual assembly or Tape & Reel for automated production.
Q: Is MSL Level 1 suitable for all storage and assembly conditions? A: MSL Level 1 (unlimited) indicates no moisture sensitivity restrictions. These parts can be stored and handled under standard industrial conditions without special desiccant packaging or baking procedures.
Q: Can I mix different AP9101 variants in the same production batch? A: Yes. All variants are electrically and mechanically interchangeable. Mixing variants is acceptable from a functional standpoint, though single-part standardization is recommended for supply chain management.
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