LED5140OR Specifications and Features: Full Guide for South African Engineers and Makers
Discover full specifications, typical features, and practical uses for the LED5140OR orange indicator LED. Local stock, technical advice, and sourcing for SA hobbyists and industry.
Full Technical Specs
Key parameters, pinout, and performance ratings of the LED5140OR.
Application & Selection Guide
Sizing resistors, wiring basics, and common use cases in South Africa.
Local Availability Advice
Where to find the LED5140OR, stock insights, and ordering options at Communica.
Overview: What is the LED5140OR?
The LED5140OR is a panel-mount, round orange indicator LED module commonly used in electronic enclosures, dashboards, industrial panels, and hobby projects requiring visual status feedback. At Communica, this device is frequently selected for both educational builds and professional control interfaces due to its robust construction, consistent color output, and convenient mounting style.
Typical Applications in South Africa
- Power-on indicators for 230V AC panels (with suitable drive circuitry)
- Signal and process status lamps in automation and PLC panels
- Visual feedback in training rigs and university electronics labs
- 3D printer control boxes and maker projects
Specifications and Key Features
| Parameter | Typical Value | Notes |
|---|---|---|
| LED Colour | Orange | Clear lens, diffused output |
| Forward Voltage | 2.0V (typical), 2.2V (max) | @ 20mA forward current |
| Forward Current | 20mA (recommended) | Continuous operation |
| Luminous Intensity | 8 - 20 mcd | Subject to model and drive current |
| Viewing Angle | 60 degrees | Wide-angle ambient indication |
| Mounting Hole | 5mm diameter | Panel-mount push-fit |
| Lead Length/Type | Approx. 20mm, tinned copper | Solder or crimp compatible |
| Body Material | Plastic lens, nickel-plated brass bezel | Robust and corrosion-resistant |
Popular Related Brands at Communica
- Kingbright
- Lite-On
- Everlight Electronics
- Communica house brand variants
Interpreting the Key Specifications
The LED5140OR is engineered for a forward voltage around 2V and thrives on a nominal 20mA drive current. This makes it compatible with standard indicator drive circuits used on microcontroller boards, discrete logic projects, and 24V/12V/5V panel setups (with series resistor adjustment). The 5mm size allows easy mounting in pre-drilled panels, and its orange color is ideal for attention-seeking alerts or process status indications.
Electrical Characteristics in Practice
- Voltage: Always use a current-limiting resistor.
- Current: Do not exceed 20-25mA continuous for long life.
- Panel Integration: Secure the bezel flush; avoid excessive force to prevent cracking the lens.
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Selecting Current-Limiting Resistors and Sample Calculations
Proper resistor sizing ensures reliable operation and long LED life. Use Ohm's Law to calculate the appropriate series resistor:
| Application | Vsource (V) | R (Ohm) | Standard Value |
|---|---|---|---|
| With Arduino (5V) | 5 | (5-2)/0.02 = 150 | 150Ω (use 1/4W or better) |
| 12V PLC Panel | 12 | (12-2)/0.02 = 500 | 510Ω (nearest E24, 0.5W min) |
| 24V Control Enclosure | 24 | (24-2)/0.02 = 1100 | 1.1kΩ (1W suggested) |
Always check the actual supply voltage, as mains fluctuations or regulated rails may vary. For long life, consider rounding up resistor values and using higher wattage for industrial builds, especially in high-temperature or enclosed environments typical of South African summer conditions.
Wiring the LED5140OR: Simple ASCII Diagram
(+)Vcc ----[ R ]-----|>|---- GND
LED
Connect the anode lead (typically longer) to the resistor and Vcc, and the cathode (shorter lead or flat side) to ground. If using in AC panels, couple with a rectifier and suitable dropper circuit. Always disconnect power before wiring into panels.
Troubleshooting and Practical Advice
- If the LED does not illuminate, double-check polarity and resistor value
- Dim output is often undersupply voltage or too-high series resistance
- Blinking or flicker may indicate loose connections or power supply noise
Conclusion: Why Use the LED5140OR?
The LED5140OR delivers visibility, reliability, and straightforward integration for control panels and educational rigs. Its compatibility with standard voltages and robust mounting make it popular in South African industry and universities alike. Always validate the latest datasheet before deployment, and leverage local support at Communica for sourcing components, suitable resistors, and accessories.
Sources
Communica supplies semiconductors and electronic components to industries such as automotive, electrical, automation, mining, and education.
Disclaimer: This content is for educational purposes only. Product availability, pricing, and specifications are subject to change. Always verify current details on the retailer's website before making a purchase. We may earn affiliate commissions from qualifying purchases.
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