onsemi NCV551SN
NCV551SN variants from onsemi
NCV551SN 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.
- 2 distinct suffix patternsExamples: 28T1G, 30T1G. 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 2 NCV551SN 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 |
|---|---|---|---|---|---|---|
| NCV551SN28T1G | LDO Regulator, 150 mA, Ultra-Low Dropout, Ultra-Low Iq Vout: 2.8 V, TSOP-5, 3000-REEL | onsemi | Active | Compliant | In Stock | |
| NCV551SN30T1G | 3V LDO Regulator, 150mA, 40mV Dropout, 8uA Iq, TSOP-5 | onsemi | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on NCV551SN map to package, grade, and reel options.
How to Choose the Right NCV551SN 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 NCV551SN, 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 "NCV551SN" — include the full suffix (e.g. 28T1G, 30T1G). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for NCV551SN product family
Identity
Variant Parameters
Source NCV551SN with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 2 ordering variants from onsemi. 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 NCV551SN product family.