VU Meter Dot/Bar Display Driver IC – 10-step analog level display driver for audio VU meters, signal strength indicators, battery level monitors, power meters, and instrumentation displays. Features a logarithmic response matched to human hearing, driving 10 LEDs, LCDs, or vacuum fluorescent (VF) displays in either dot or bar mode. Operates from a single 3 V to 25 V supply, includes an adjustable 1.2 V to 12 V precision voltage reference, and provides programmable constant-current LED outputs (typically 2 mA to 30 mA) without requiring external current-limiting resistors. Supports 70 dB display range, expandable multi-device cascading for higher resolution, and offers fast analog response for real-time level indication. Specified for operation over a 0°C to +70°C temperature range and housed in an 18-pin PDIP package. This device is obsolete/Lifetime Buy and is not recommended for new designs. #TexasInstruments #LM3916N1NOPB #LM3916 #VUDriver #BarGraphDriver #DotBarDisplay #LEDDriver #AudioMeter #LevelIndicator #DisplayDriver #PDIP18 #EmbeddedSystems

Green 569nm LED Indication - Discrete 2.1V 0603 (1608 Metric) The LTST-S270GKT is a green, right-angle (side-looking) SMD LED in a 0603 (1608 metric) package, optimized for space-constrained PCB designs. It emits light parallel to the PCB surface, making it ideal for panel indicators, backlighting, and edge illumination. Color: Green (dominant wavelength ~569 nm) Package: 0603 (1.6 × 1.15 × 0.6 mm) ultra-compact size Mounting Type: Surface-mount, right-angle (side-view) Forward Voltage: ~2.1 V (typical) Forward Current: 20 mA (test condition) Luminous Intensity: ~10 mcd Viewing Angle: Wide (~130°) Lens Type: Clear, colorless rectangular lens Additional Characteristics Side-emitting design for edge lighting or light pipes Compatible with automated assembly (tape & reel packaging) RoHS compliant / lead-free (environment-friendly) Operating temperature: −30°C to +85°C Typical Applications Status indicators on compact PCBs Backlighting (LCDs, buttons, icons) Consumer electronics and portable devices Industrial control panels #commonpartslibrary #optoelectronic #led #SMD

Audio Indicators & Alerts U 81-PKM22EPPH-4001 Series: Murata - Piezoelectric Sounder, Ringer #CommonPartsLibrary #alarm #Buzzer #Siren

Audio Indicators & Alerts U 81-PKM22EPPH-4001 Series: Murata - Piezoelectric Sounder, Ringer #CommonPartsLibrary #alarm #Buzzer #Siren

LED Circuit Board Indicators Grn Yel 568 588nm White Diffused #Optoelectronic #CircuitBoardIndicator #LED #BarGraphs