Bourns SRN4018
SRN4018 variants from Bourns
SRN4018 Overview
What changes between part numbers, and what to check before you lock the BOM — Passive Components.
Key Features
- Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
- 11 distinct suffix patternsExamples: 100M, 150M, 220M, 221M, 2R2M (+6 more). Decode suffix meaning in the ordering notes under the variant table.
Target Applications
- Passive Components — 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 11 SRN4018 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 |
|---|---|---|---|---|---|---|
| SRN4018-100M | FIXED IND 10UH 1.3A 180 MOHM SMD | Bourns | Active | Compliant | In Stock | |
| SRN4018-150M | FIXED IND 15UH 1A 264 MOHM SMD | Bourns | Active | Compliant | In Stock | |
| SRN4018-220M | FIXED IND 22UH 900MA 348MOHM SMD | Bourns | Active | Compliant | In Stock | |
| SRN4018-221M | FIXED IND 220UH 280MA 3.552 OHM | Bourns | Active | Compliant | In Stock | |
| SRN4018-2R2M | FIXED IND 2.2UH 2.9A 44 MOHM SMD | Bourns | Active | Compliant | In Stock | |
| SRN4018-2R7M | FIXED IND 2.7UH 2.3A 52 MOHM SMD | Bourns | Active | Compliant | In Stock | |
| SRN4018-330M | FIXED IND 33UH 700MA 552MOHM SMD | Bourns | Active | Compliant | In Stock | |
| SRN4018-3R3M | FIXED IND 3.3UH 2.2A 66 MOHM SMD | Bourns | Active | Compliant | In Stock | |
| SRN4018-4R7M | FIXED IND 4.7UH 1.9A 84 MOHM SMD | Bourns | Active | Compliant | In Stock | |
| SRN4018-680M | FIXED IND 68UH 500MA 1.128OHM SM | Bourns | Active | Compliant | In Stock | |
| SRN4018-6R8M | FIXED IND 6.8UH 1.5A 118MOHM SMD | Bourns | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on SRN4018 map to package, grade, and reel options.
How to Choose the Right SRN4018 Passive Components
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 SRN4018, 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 "SRN4018" — include the full suffix (e.g. 100M, 150M, 220M). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for SRN4018 product family
Identity
Variant Parameters
Source SRN4018 with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 11 ordering variants from Bourns. 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 SRN4018 product family.