Diodes Incorporated AP2121AK
AP2121AK variants from Diodes Incorporated
AP2121AK Overview
What changes between part numbers, and what to check before you lock the BOM — Microcontrollers.
Key Features
- Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
- 15 distinct suffix patternsExamples: 1.2TRG1, 1.3TRG1, 1.5TRE1, 1.5TRG1, 1.8TRE1 (+10 more). Decode suffix meaning in the ordering notes under the variant table.
Target Applications
- Microcontrollers — design-in and field replacement
- BOM scrub where only the base prefix is known but suffix is TBD
- Second-source checks when the original MPN is constrained
Ordering Variants
Compare 15 AP2121AK part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.
| Part Number | Description | Manufacturer | Lifecycle | RoHS | Availability | Action |
|---|---|---|---|---|---|---|
| AP2121AK-1.2TRG1 | IC REG LINEAR 1.2V 200MA SOT23-5 | Diodes Incorporated | Active | Compliant | In Stock | |
| AP2121AK-1.3TRG1 | IC REG LINEAR 1.3V 200MA SOT23-5 | Diodes Incorporated | Active | Compliant | In Stock | |
| AP2121AK-1.5TRE1 | IC REG LINEAR 1.5V 200MA SOT23-5 | Diodes Incorporated | Active | Compliant | In Stock | |
| AP2121AK-1.5TRG1 | IC REG LINEAR 1.5V 200MA SOT23-5 | Diodes Incorporated | Active | Compliant | In Stock | |
| AP2121AK-1.8TRE1 | IC REG LINEAR 1.8V 200MA SOT23-5 | Diodes Incorporated | Active | Compliant | In Stock | |
| AP2121AK-1.8TRG1 | IC REG LINEAR 1.8V 200MA SOT23-5 | Diodes Incorporated | Active | Compliant | In Stock | |
| AP2121AK-2.5TRE1 | IC REG LINEAR 2.5V 200MA SOT23-5 | Diodes Incorporated | Active | Compliant | In Stock | |
| AP2121AK-2.5TRG1 | IC REG LINEAR 2.5V 200MA SOT23-5 | Diodes Incorporated | Active | Compliant | In Stock | |
| AP2121AK-2.8TRE1 | IC REG LINEAR 2.8V 200MA SOT23-5 | Diodes Incorporated | Active | Compliant | In Stock | |
| AP2121AK-2.8TRG1 | IC REG LINEAR 2.8V 200MA SOT23-5 | Diodes Incorporated | Active | Compliant | In Stock | |
| AP2121AK-3.0TRE1 | IC REG LINEAR 3V 200MA SOT23-5 | Diodes Incorporated | Active | Compliant | In Stock | |
| AP2121AK-3.0TRG1 | IC REG LINEAR 3V 200MA SOT23-5 | Diodes Incorporated | Active | Compliant | In Stock | |
| AP2121AK-3.2TRE1 | IC REG LINEAR 3.2V 200MA SOT23-5 | Diodes Incorporated | Active | Compliant | In Stock | |
| AP2121AK-3.3TRE1 | IC REG LINEAR 3.3V 200MA SOT23-5 | Diodes Incorporated | Active | Compliant | In Stock | |
| AP2121AK-3.3TRG1 | IC REG LINEAR 3.3V 200MA SOT23-5 | Diodes Incorporated | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on AP2121AK map to package, grade, and reel options.
How to Choose the Right AP2121AK Microcontrollers
Match the footprint first
Pull the exact package drawing for your MPN — base-number swaps fail most often at the footprint, not the schematic.
Electrical headroom
Compare voltage and current columns in the variant table. For AP2121AK, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.
Temp grade letter matters
Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.
Copy the full MPN
Do not BOM only "AP2121AK" — include the full suffix (e.g. 1.2TRG1, 1.3TRG1, 1.5TRE1). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for AP2121AK product family
Identity
Variant Parameters
Source AP2121AK with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 15 ordering variants from Diodes Incorporated. Our team supports active, EOL, and hard-to-find component sourcing.
- Original manufacturer parts with traceability options
- BOM upload and multi-line RFQ support
- Package, grade, and compliance verification
Frequently Asked Questions
Common technical questions about the AP2121AK product family.