The KYX-B10R is an ultra-bright, 10-segment monochromatic red LED bar graph display housed in an industry-standard 20-pin dual in-line package (DIP). Designed for high-visibility visual feedback, each segment contains an independent high-efficiency red LED element covered by a white diffused epoxy window on a black faceplate. It is widely used in instrumentation panels, audio visualizers, industrial process gauges, alarm indicators, and battery level monitors requiring clear status indication.

Specifications

• Model: KYX-B10R
• Display Type: 10-Segment LED Bar Graph
• Emitted Colour: Ultra Bright Red
• Peak Wavelength: ~625nm to 635nm
• Package Style: 20-Pin Dual In-line Package (DIP-20)
• Pin Pitch: 2.54 mm (Standard breadboard and perfboard spacing)
• Row Spacing: 7.62 mm (0.3 inches standard DIP width)
• Forward Current per Segment: 15mA to 20mA (Nominal), 30mA (Peak absolute max)
• Forward Voltage Drop (Vf): 1.8V to 2.2V per segment (Typical 2.0V at 20mA)
• Reverse Voltage Max (Vr): 5V
• Luminous Intensity: 60 mcd to 100 mcd per segment
• Operating Temperature: -25°C to +85°C
• Face / Segment Finish: Black faceplate with milky white diffused segment windows

Interface and Pinout Guide

All 10 segments are electrically isolated, with individual anode and cathode pin pairs brought out to opposite sides of the 20-pin package:

• Segment 1: Pin 1 to Pin 20
• Segment 2: Pin 2 to Pin 19
• Segment 3: Pin 3 to Pin 18
• Segment 4: Pin 4 to Pin 17
• Segment 5: Pin 5 to Pin 16
• Segment 6: Pin 6 to Pin 15
• Segment 7: Pin 7 to Pin 14
• Segment 8: Pin 8 to Pin 13
• Segment 9: Pin 9 to Pin 12
• Segment 10: Pin 10 to Pin 11

(Note: Because each segment is electrically independent, the display can be configured as Common Anode, Common Cathode, or multiplexed simply by arranging the external wiring or PCB trace routing).

Key Features

• Ultra-Bright Uniform Output: High-efficiency red LED dies combined with white diffused bars deliver uniform light emission without hotspotting or segment bleed-through.
• Independent Segment Architecture: Fully isolated pinouts allow maximum flexibility, compatible with low-side sinking, high-side sourcing, or matrix scanning.
• High Contrast Design: Matte black surface finish maximizes legibility under bright ambient lighting conditions.
• Standard DIP-20 Footprint: Drops directly into standard 2.54mm breadboards, prototyping stripboards, and 20-pin DIP sockets.
• Driver IC Ready: Fully compatible with popular bar/dot driver ICs (LM3914, LM3915, LM3916), 8-bit/16-bit shift registers (74HC595, TPIC6B595), and microcontroller GPIO banks.

Common Applications

• Alarm & Limit Indicators: Warning lights, temperature thresholds, high-pressure alarms, and overload readouts.
• Audio & Signal Visualization: Peak meters, clipping indicators, and VU meters.
• Industrial Process Control: Valve opening percentage, liquid tank levels, and motor load monitors.
• Battery & Power Monitoring: Low-voltage alerts, discharge indicators, and state-of-charge (SoC) gauges.

Usage Tips

• Current Limiting Resistors: Always wire an individual current-limiting resistor in series with each segment. For a standard 5V supply and typical 2.0V drop at 15mA, use approximately 200Ω to 220Ω series resistors on each channel.
• Driving Multiple Segments: If turning all 10 segments on simultaneously, total current draw will reach 150mA to 200mA. Ensure your power supply rail or driver IC can handle the cumulative current without brownouts.
• Determining Polarity: Use a digital multimeter in diode-test mode across opposing pins (e.g., Pin 1 and Pin 20) to quickly verify anode and cathode orientation before finalizing board assembly.