Alternatives to onsemi LM393D
onsemi LM393D and its qualified second sources, compared on form, fit and function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
Equivalent and substitute parts for onsemi LM393D
 LM393Donsemi | LM393DR2Gonsemi |  LM393DRTexas Instruments | |
|---|---|---|---|
| FFF Compatibility | The pin assignments, dimensions, and layout match the obsolete LM393D exactly.The physical SOIC-8 dimensions and lead structures are identical.Electrical ratings and operation are fully compliant with the original baseline. | The physical footprint, SOIC-8 package dimensions, and 8-pin assignments are exactly identical to the original onsemi LM393D.Both components share the standard 8-SOIC package shape, lead pitch, and seating height.All electrical parameters, supply voltage ranges (2V to 36V), and output configurations perfectly match the original. | |
 AI Summary | LM393D by onsemi: Comparator Standard (General Purpose) Open-Collector, CMOS, DTL, ECL, MOS, TTL 8-SOIC. | The LM393DR2G is the active, modern lead-free counterpart from onsemi, making it the most seamless direct transition within the same manufacturer family.
| The Texas Instruments LM393DR is a direct, highly available, industry-standard second-source replacement for the obsolete onsemi LM393D, offering identical performance and physical dimensions.
|
| Lifecycle Status | Obsolete | Active | Active |
| Market Availability | Non-stock | In stock | In stock |
| REACH | Unknown | REACH | REACH |
| RoHS | RoHS | RoHS | RoHS |
| ——— ———— | ————— ——— ———— | ———— —————— | —— ————— ——— |
| —————— —— | ——————— ———— | ————— ——— ———— | ———— —————— |
| ———— ——— | —— ————— ——— | ——————— ———— | ————— ——— ———— |
| —— ————— | ———— —————— | —— ————— ——— | ——————— ———— |
| ——— ———— | ————— ——— ———— | ———— —————— | —— ————— ——— |
| —————— —— | ——————— ———— | ————— ——— ———— | ———— —————— |
| ———— ——— | —— ————— ——— | ——————— ———— | ————— ——— ———— |
| —— ————— | ———— —————— | —— ————— ——— | ——————— ———— |
Unlock the full comparison
Sign in with your work email to read every gated row on this table — description, lead time, origin, export control and the full technical data.
Sign in to unlockSigning in creates a free Parter account. We use your name and email to contact you about Parter — see our Privacy Policy.
- Find & compare verified second sources
- Spot risk early with real-time part monitoring
- Stay compliant and production-ready
Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 LM393DRROHM Semiconductor | In stock | NRND | 4Alternatives availableSee Alternatives |
 LM393GOODWORK | In stock | Active | 5Alternatives availableSee Alternatives |
 LM393MTexas Instruments | In stock | Obsolete | 6Alternatives availableSee Alternatives |
 LM293DTexas Instruments | In stock | Obsolete | 5Alternatives availableSee Alternatives |
 LM339DSTMicroelectronics | In stock | Obsolete | 4Alternatives availableSee Alternatives |
| LM393MXTexas Instruments | In stock | Obsolete | 10Alternatives availableSee Alternatives |
You searched one part. Parter watches your whole BOM.
All your BOM, at once
Parter maps every line to live stock, lead time, lifecycle and compliance data across the entire market — not part by part.
Hear about problems before they hit production
Allocation, EOL and last-time-buy notices surface the moment they appear, not when your buyer's PO bounces.
Qualified replacements in minutes, not days
Every at-risk line gets form-fit-function matches like the ones above — deltas flagged, evidence attached. Review, push to your BOM, and Parter starts watching the new part too.
Schedule a demo
See Parter in action
Discover how Parter can help your hardware team:
- Streamline your hardware operations with AI
- Detect and prevent lifecycle disruptions
- Accelerate product development
- Stay compliant and production-ready