onsemi MC78L18
MC78L18 variants from onsemi
MC78L18 Overview
What changes between part numbers, and what to check before you lock the BOM — Integrated Circuits (ICs).
Key Features
- Footprint / package: TO-226-3, TO-92-3 Long Body (Formed Leads)Single package option across listed variants; still confirm reel vs tube suffix if you auto-insert.
- Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
Target Applications
- Integrated Circuits (ICs) — 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
Product Details
Compare 1 MC78L18 part number by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.
| Part Number | Description | Package Type | Manufacturer | Lifecycle | RoHS | Availability | Action |
|---|---|---|---|---|---|---|---|
| MC78L18ACPRAG | Package: TO-226-3, TO-92-3 Long Body (Formed Leads) | Mounting Type: Through Hole | Operating Temperature: 0°C ~ 125°C | Output Type: Fixed | Voltage Input Max: 35V | Supplier Device Package: TO-92 (TO-226) | TO-226-3, TO-92-3 Long Body (Formed Leads) | onsemi | Active | Compliant | In Stock |
How to Choose the Right MC78L18 Integrated Circuits (ICs)
Match the footprint first
Packages here: TO-226-3, TO-92-3 Long Body (Formed Leads). Open the land-pattern drawing before you substitute a different suffix.
Electrical headroom
Compare voltage and current columns in the variant table. For MC78L18, 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 "MC78L18" — include the full suffix (e.g. ACPRAG). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for MC78L18 product family
Identity
Variant Parameters
Source MC78L18 with Octatronics
Request stock confirmation, lead time, date code, and pricing for this part 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 MC78L18 product family.