Alternatives to Texas Instruments NA555DR
Texas Instruments NA555DR and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 NA555DRTexas Instruments |  NCV1455BDR2Gonsemi |  NA555S-13Diodes Incorporated | +5more | |
|---|---|---|---|---|
| FFF Compatibility | Uses the exact same industry-standard 8-pin layout for 555 timers, making it a direct drop-in.Housed in an identical 8-SOIC package footprint with the same pitch and dimensions.Acts as a performance upgrade, meeting all original electrical parameters and extending the maximum operating temperature range. | Features the identical industry-standard pin assignment for 555 timers.Housed in an 8-SOIC package with equivalent physical dimensions and land pattern.Fully matches the electrical performance, supply voltage, and operating temperature range of the original TI part. | ||
 AI Summary | NA555DR by Texas Instruments: 555 Type, Timer/Oscillator (Single) IC 100kHz 8-SOIC. | This is a premium automotive-grade equivalent from onsemi that acts as a direct drop-in replacement. It features an extended temperature range, making it exceptionally reliable in demanding environments.
| This is an exact cross-reference replacement from Diodes Incorporated. It completely duplicates the physical footprint, electrical specifications, and the wide industrial temperature range.
| |
| Lifecycle Status | Active | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | 555 Type, Timer/Oscillator (Single) IC 100kHz 8-SOIC | 555 Type, Timer/Oscillator (Single) IC 8-SOIC | 555 Type, Timer/Oscillator (Single) IC 500kHz 8-SO | |
| Manufacturer | Texas Instruments | onsemi | Diodes Incorporated | |
| Type | Clock/Timing | Clock/Timing | Clock/Timing | |
| Datasheet | Open | Open | Open | |
| Lead Time | 16 weeks | 10 weeks | 40 weeks | |
| Country of Origin | MX, MY, US, TW | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0070 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| Type | 555 Type, Timer/Oscillator (Single) | - | - | |
| Frequency | 100kHz | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | - | - | |
| Current - Supply | 10 mA | - | - | |
| Voltage - Supply | 4.5V ~ 16V | - | - | |
| Operating Temperature | -40°C ~ 105°C | - | - | |
| Supplier Device Package | 8-SOIC | - | - |
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Frequently asked questions
Yes. The Texas Instruments NA555DR 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 Texas Instruments NA555DR are the NCV1455BDR2G (onsemi) and the NA555S-13 (Diodes Incorporated), out of 7 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 NA555DR 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 NA555DR (Texas Instruments) is a part in the Clock/Timing category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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