L4981AAlternatives & Equivalent Parts
About L4981A
L4981A is a Integrated Circuit component manufactured by STMicroelectronics. It comes in a Dual-In-Line Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | L4981ASource | L4981AD | E-L4981AD013TR |
|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package Type | Dual-In-Line Packages | Small Outline Packages | Small Outline Packages |
| Pin Count | 20 | 20 | 20 |
| Temperature Range | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C |
| Price | $2.0855 | $2.1331 | — |
| Stock | In Stock | In Stock | In Stock |
| Lifecycle | OBSOLETE | ACTIVE | OBSOLETE |
| Electrical Parameters | |||
| YTEOL | 0 | 6.2 | 0 |
| Analog IC - Other Type | POWER FACTOR CONTROLLER | POWER FACTOR CONTROLLER | POWER FACTOR CONTROLLER |
| Control Mode | CURRENT-MODE | CURRENT-MODE | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION | PULSE WIDTH MODULATION | PULSE WIDTH MODULATION |
| Input Voltage-Max | 19.5 V | 19.5 V | 19.5 V |
| Input Voltage-Min | 11 V | 11 V | 11 V |
| Input Voltage-Nom | 18 V | 18 V | 18 V |
| JESD-30 Code | R-PDIP-T20 | R-PDSO-G20 | R-PDSO-G20 |
| JESD-609 Code | e3 | e4 | — |
| Number of Functions | 1 | 1 | 1 |
| Output Current-Max | 2 A | 2 A | 2 A |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | DIP20,.3 | SOP20,.4 | — |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | IN-LINE | SMALL OUTLINE | SMALL OUTLINE |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified |
| Surface Mount | NO | YES | YES |
| Switcher Configuration | SINGLE | SINGLE | SINGLE |
| Switching Frequency-Max | 115 kHz | 115 kHz | 115 kHz |
| Technology | BCDMOS | BCDMOS | BCDMOS |
| Temperature Grade | AUTOMOTIVE | AUTOMOTIVE | AUTOMOTIVE |
| Terminal Finish | MATTE TIN | Nickel/Palladium/Gold (Ni/Pd/Au) | — |
| Terminal Form | THROUGH-HOLE | GULL WING | GULL WING |
| Terminal Pitch | 2.54 mm | 1.27 mm | 1.27 mm |
| Terminal Position | DUAL | DUAL | DUAL |
| Factory Lead Time | — | 25 Weeks | — |
| Peak Reflow Temperature (Cel) | — | 260 | — |
| Time@Peak Reflow Temperature-Max (s) | — | 30 | — |
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 L4981A — response within 24 hours.
Quick Links
Power Factor Controller, Current-mode, 2A, 115kHz Switching Freq-Max, BCDMOS, PDSO20
Power Factor Controller, Current-mode, 2A, 115kHz Switching Freq-Max, BCDMOS, PDSO20
Why Look for Alternatives?
Finding alternatives for L4981A 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 L4981A 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.
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FAQ
What is equivalent to L4981A?
Known equivalents for L4981A include L4981AD, E-L4981AD013TR. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of L4981A?
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 L4981A 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.