Alternatives to National Semiconductor LM809M3X-3.08/NOPB
National Semiconductor LM809M3X-3.08/NOPB and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 LM809M3X-3.08/NOPBNational Semiconductor |  LM809M3-3.08/NOPBTexas Instruments |  MAX809TEUR+TAnalog Devices Inc./Maxim Integrated | +4more | |
|---|---|---|---|---|
| FFF Compatibility | Same SOT-23-3 footprint and pin assignment.Same physical package dimensions and mounting style.Exact same electrical characteristics and threshold voltage of 3.08V. | Same SOT-23-3 footprint and pinout verified via datasheet.Identical SOT-23-3 package body dimensions.Matches threshold voltage, active-low push-pull output, and operating temperature range. | ||
 AI Summary | LM809M3X-3.08/NOPB by National Semiconductor: Supervisor Push-Pull, Totem Pole 1 Channel SOT-23-3. | This is a direct drop-in sibling variant from Texas Instruments, differing only in the tape-and-reel packaging size (typically 1000 units instead of 3000 units). It guarantees perfect compatibility across all physical and electrical parameters.
| This is a highly reliable industry-standard alternative from Maxim Integrated (Analog Devices) with matching threshold voltage and active-low push-pull output. It serves as a direct second source with identical performance.
| |
| Lifecycle Status | Active | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Supervisor Push-Pull, Totem Pole 1 Channel SOT-23-3 | Supervisor Push-Pull, Totem Pole 1 Channel SOT-23-3 | Supervisor Push-Pull, Totem Pole 1 Channel SOT-23-3 | |
| Manufacturer | National Semiconductor | Texas Instruments | Analog Devices Inc./Maxim Integrated | |
| Type | Power Management (PMIC) | Power Management (PMIC) | Power Management (PMIC) | |
| Datasheet | Open | Open | Open | |
| Lead Time | 7 days | 9 weeks | 15 weeks | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0090 | - | - | |
| Moisture Sensitivity Level | - | - | - | |
| Type | Simple Reset/Power-On Reset | - | - | |
| Reset | Active Low | - | - | |
| Output | Push-Pull, Totem Pole | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Reset Timeout | 140ms Minimum | - | - | |
| Package / Case | TO-236-3, SC-59, SOT-23-3 | - | - | |
| Voltage - Threshold | 3.08V | - | - | |
| DigiKey Programmable | Not Verified | - | - |
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Frequently asked questions
Yes. The National Semiconductor LM809M3X-3.08/NOPB is active and in production. The parts listed here are qualified equivalents if you need a second source or better availability.
The closest qualified second sources for the National Semiconductor LM809M3X-3.08/NOPB are the LM809M3-3.08/NOPB (Texas Instruments) and the MAX809TEUR+T (Analog Devices Inc./Maxim Integrated), out of 6 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the LM809M3X-3.08/NOPB are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The LM809M3X-3.08/NOPB (National Semiconductor) is a part in the Power Management (PMIC) category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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