The National Semiconductor LM1291N is a horizontal deflection IC designed for CRT display systems. It generates the horizontal sweep drive signal, synchronizing the electron beam's left-to-right scan across the screen. This part is typically found in older monitors, televisions, and industrial CRT terminals where a dedicated deflection controller is required rather than a microcontroller-based solution.
LM1291N Horizontal Deflection IC, Active, RoHS Non-Compliant
MPNLM1291N
End of Life
National Semiconductor LM1291N, Horizontal Deflection IC, Bulk package, Active lifecycle, RoHS non-compliant.
$4.44Ref. price · indicative, final on quote
RoHSRoHS non-compliant
Series*
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Series | * |
| Package | Bulk |
Product details
Frequently asked questions
What is the LM1291N used for?
The LM1291N is a horizontal deflection IC used in CRT monitors, televisions, and industrial CRT terminals to generate the horizontal sweep signal for the electron beam.
Is the LM1291N RoHS compliant?
No, the LM1291N is RoHS non-compliant, which may restrict its use in new designs for RoHS-regulated markets.