1291Alternatives & Equivalent Parts
About 1291
1291 is a Undefined or Miscellaneous component manufactured by Keystone Electronics. It comes in a Other package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Get one quote covering all 2 alternatives for 1291 — response within 24 hours.
Specification Comparison
| Parameter | 1291Source | LM386MMX-1/NOPB | LM2595S-ADJ |
|---|---|---|---|
| Manufacturer | Keystone Electronics | Texas Instruments | Texas Instruments |
| Package Type | Other | Small Outline Packages | Other |
| Pin Count | 6 | 8 | 4 |
| Temperature Range | — | ~ 70.0°C | -40.0°C ~ 125.0°C |
| Price | $2.5000 | $0.5026 | $0.7904 |
| Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | OBSOLETE |
| Electrical Parameters | |||
| Connector Type | PCB CONNECTOR | — | — |
| Contact Finish Mating | NOT SPECIFIED | — | — |
| Contact Material | NOT SPECIFIED | — | — |
| DIN Conformance | NO | — | — |
| Filter Feature | NO | — | — |
| IEC Conformance | NO | — | — |
| MIL Conformance | NO | — | — |
| Mixed Contacts | NO | — | — |
| Number Of Connectors | ONE | — | — |
| Option | GENERAL PURPOSE | — | — |
| Pbfree Code | — | Yes | Yes |
| YTEOL | — | 15 | 0 |
| Bandwidth-Nom | — | 300 kHz | — |
| Consumer IC Type | — | AUDIO AMPLIFIER | — |
| Harmonic Distortion | — | 10% | — |
| JESD-30 Code | — | S-PDSO-G8 | R-PSSO-G5 |
| JESD-609 Code | — | e3 | e0 |
| Number of Channels | — | 1 | — |
| Number of Functions | — | 1 | 1 |
| Output Power-Nom | — | 0.325 W | — |
| Package Body Material | — | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | — | TSSOP8,.25 | SMSIP5H,.6,67TB |
| Package Shape | — | SQUARE | RECTANGULAR |
| Package Style | — | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | — | 260 | 235 |
| Qualification Status | — | Not Qualified | Not Qualified |
| Supply Voltage-Max (Vsup) | — | 12 V | — |
| Supply Voltage-Min (Vsup) | — | 4 V | — |
| Surface Mount | — | YES | YES |
| Technology | — | BIPOLAR | BIPOLAR |
| Temperature Grade | — | COMMERCIAL | AUTOMOTIVE |
| Terminal Finish | — | Matte Tin (Sn) | Tin/Lead (Sn/Pb) |
| Terminal Form | — | GULL WING | GULL WING |
| Terminal Pitch | — | 0.65 mm | 1.7 mm |
| Terminal Position | — | DUAL | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | — | 30 | NOT SPECIFIED |
| ## LM386MMX-1/NOPB Alternates Showing results | — | Image | — |
| Date Of Intro | — | — | 1996-02-01 |
| Analog IC - Other Type | — | — | SWITCHING REGULATOR |
| Control Mode | — | — | VOLTAGE-MODE |
| Control Technique | — | — | PULSE WIDTH MODULATION |
| Input Voltage-Max | — | — | 40 V |
| Input Voltage-Min | — | — | 4.5 V |
| Input Voltage-Nom | — | — | 12 V |
| Number of Outputs | — | — | 1 |
| Output Current-Max | — | — | 1 A |
| Output Voltage-Max | — | — | 37 V |
| Output Voltage-Min | — | — | 3.3 V |
| Output Voltage-Nom | — | — | 1.23 V |
| Switcher Configuration | — | — | BUCK |
| Switching Frequency-Max | — | — | 173 kHz |
| ## LM2595S-ADJ Alternates Showing results | — | — | Image |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 2 alternatives for 1291 — response within 24 hours.
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Why Look for Alternatives?
Finding alternatives for 1291 is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating 1291 replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
Can't Find What You Need?
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FAQ
What is equivalent to 1291?
Known equivalents for 1291 include LM386MMX-1/NOPB, LM2595S-ADJ. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of 1291?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify 1291 alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.