LED Lamps L-53SRC-J4 Super Bright Red 5mm Dome - In Stock at Communica
Find the L-53SRC-J4 super bright red 5mm dome LED at Communica. Read specs, resistor calculations, mounting tips and South Africa buying notes.
Compact 5mm Dome
Standard 5mm fit for PCBs, panels and breadboards.
Drive & Resistor Tips
Use R = (Vsup - Vf)/I and allow margin for brightness.
Local Stock & Accessories
Bezel holders, resistor kits and bulk packs available at Communica.
Overview: L-53SRC-J4 5mm Super Bright Red
The L-53SRC-J4 super bright red 5mm dome LED is a common choice for status indicators, panel lights and low-current signalling in hobby, education and industrial prototypes. Its dome lens provides wide viewing angle and good front brightness, making it suitable for panels, PCBs and breadboard work.
Key specifications
When evaluating LED Lamps L-53SRC-J4 super bright red 5mm dome for your project, confirm these basic specs so the part meets your electrical and mechanical needs.
| Parameter | Typical Value | Notes |
|---|---|---|
| Lens / Package | 5mm dome (clear or diffused) | Wide viewing angle; good frontal intensity |
| Wavelength | ~620-640 nm (red) | Appears vivid red to the eye |
| Forward voltage (Vf) | ~1.8 - 2.2 V at rated current | Check datasheet for exact Vf curve |
| Typical viewing angle | 20-70 degrees (dome shape varies) | Dome geometry affects dispersion |
| Drive current | 2 mA - 20 mA (typical use: 5-10 mA) | Lower current extends life and reduces glare |
Mechanical & mounting notes
The L-53SRC-J4 uses standard 5mm lead spacing for PCB insertion and fits common 5mm panel cutouts with simple retaining clips or bezel holders. Confirm lead length and polarity marking when installing on prototype boards or through-hole PCBs.
Why choose the L-53SRC-J4?
- Consistent red colour and strong perceived brightness even at low currents.
- Suitable for learning environments and production prototypes because of familiar 5mm form factor.
- Easy replacement with many compatible 5mm domes stocked at local suppliers.
Primary keyword: led-lamps-l-53src-j4-super-bright-red-5mm-dome appears in product listings and helps locate the exact part number when checking stock or datasheets.
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How to select and drive the LED
Proper resistor sizing and current control are essential. Use Ohm's Law to pick a series resistor for a given supply.
Series resistor formula
R = (Vsup - Vf) / I
Example: from a 5 V microcontroller pin, target 10 mA using Vf = 2.0 V: R = (5 - 2.0) / 0.01 = 300 ohms. Choose the nearest standard value (330 ohm) to reduce current slightly and increase margin.
Power dissipation
Power on resistor: P = I^2 * R. For 10 mA into 300 ohm, P = 0.01^2 * 300 = 0.03 W, so a 0.125 W resistor is adequate; a 0.25 W resistor adds margin.
Wiring diagram (PCB / breadboard)
Simple single-LED hookup from a microcontroller pin with GPIO LOW as ground reference.
GPIO Pin ----- Resistor -----|> (LED) ----- GND
Compatibility, accessories and local buying tips
Communica stocks a wide range of through-hole LEDs, resistor packs, LED bezels, and panel mounts suitable for the L-53SRC-J4 form factor. When sourcing locally consider delivery lead times and branch pickup from Samrand, Pretoria CBD or Cape Town to avoid production delays.
- Buy resistors in assorted kits for prototyping and to match various supply voltages.
- Use LED bezels or holders for panel installations to improve mechanical finish.
- Check stock pages for pack sizes; educational projects often prefer 100-300 piece packs to keep unit cost low (prices shown in ZAR on product pages; availability varies and may be estimates).
Troubleshooting tips
If the LED is dim or not lighting: verify polarity, measure Vf at the operating current, and ensure the series resistor value is correct. For intermittent operation check solder joints and PCB hole plating. If many LEDs are used on one supply, calculate total current in ZAR terms for expected power draw when sizing regulators and power rails.
Ordering & technical support notes
When ordering, search Communica product listings for led-lamps-l-53src-j4-super-bright-red-5mm-dome or browse the LED & Indicators category. For procurement teams, Communica provides VAT invoices and account quoting options-check branch pages for collection and lead-time information specific to South Africa.
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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