3mm Bi-Color LED Diode with 3 Pins and 53mm Long Leads – Extended Reach, Dual-Color Versatility

The 3mm bi-color LED diode with 3 pins and an extra-long 53mm pin length is a specialized through-hole indicator engineered for applications requiring long lead reach, flexible mounting depth, and multi-color signaling in compact panel designs. This LED combines the familiar T-1 (3mm) size with a dual-color chip configuration, offering two distinct illumination modes using a 3-pin common lead setup.

With its 53mm extended leads, the LED is ideal for deep mechanical housings, elevated prototypes, breadboards, panel indicators, and designs where standard 20–25mm leads simply cannot reach. Whether used in control systems, instrumentation, DIY electronics, or commercial devices, this LED delivers reliability, strong visibility, and practical assembly benefits.

⭐ Key Features

1. Dual-Color Output (Bi-Color LED)

This LED integrates two LED chips in a single package, providing:

• Two independent colors (e.g., red/green, red/yellow)

• Easy color switching based on polarity

• Clear status indication for systems requiring multi-state visual feedback

This makes it perfect for error/status/warning/light-on indicators.

2. 3-Pin Configuration

The widely-used 3-pin structure offers:

• One common cathode or anode

• Two independent anodes or cathodes

• Easy polarity control

• Simplified circuit integration

Designers can switch between colors with minimal circuitry.

3. Extra-Long 53mm Lead Length

The standout feature of this LED is its 53mm long pins, providing:

• Deep reach through thick front panels

• Easy prototyping and jumper-style wiring

• More flexible mounting positions

• Better accessibility for testing and clipping probes

• Reduced need for additional wiring extensions

Especially useful for industrial hardware and custom enclosures.

4. Compact 3mm Cylindrical Lens

The small lens size ensures:

• Tight spacing in high-density boards

• Clean, minimalistic indicator appearance

• Strong forward illumination with excellent visibility

Available in clear, diffused, water-clear, or tinted lens options.

5. High-Brightness Light Output

The LED offers:

• Strong luminous efficiency

• Low power consumption

• Reliable long-term stability

• Bright, clear optical color transitions

Great for low-current or battery-powered systems.

6. Through-Hole Durability

This LED is built for robust environments:

• Vibration-resistant through-hole construction

• Strong epoxy lens

• Heat-resistant metal leads

• Excellent operational life

7. RoHS Compliant

Manufactured with environmentally safe, lead-free materials.

⭐ Applications

The 3mm bi-color LED with 53mm long pins is ideal for situations where both extended lead length and dual-color functionality are essential.

✔ Industrial Control Panels

Long leads allow placement through thick metallic or composite panels.

✔ Status & Indicator Lights

Perfect for multi-state light indicators:

• ON/OFF

• Standby/Active

• Error/OK

• Charging/Charged

✔ Instrumentation & Test Equipment

Engineers appreciate the reach for:

• Deep housings

• Recessed bezels

• Multi-layer enclosure fronts

✔ Prototyping & DIY Electronics

The long leads make it easy to:

• Bend, shape, or reposition LEDs

• Test circuits on breadboards

• Clip oscilloscope or multimeter probes directly

✔ Telecom & Networking Equipment

Dual-color output helps identify system states at a glance.

✔ Automotive & Hobby Projects

Ideal for dashboards, warning indicators, and custom signal modules.

⭐ Benefits & Advantages

✔ Multi-Color Signaling in One Component

Reduces component count and simplifies PCB layout.

✔ Extended Lead Length Enhances Mechanical Flexibility

53mm pins eliminate the need for:

• Lead extension wires

• Connectors

• Light guides

• LED standoffs

✔ Highly Visible Illumination

Even from a distance or behind tinted panels.

✔ Great for Deep Enclosure Designs

Allows assembly through:

• Thick plastic

• Wood

• Metal

• Multi-layer enclosures

✔ Excellent for Prototyping and R&D

The longer pins provide room for repeated bending or testing.

✔ Reliable, Long-Life Indicator

Engineered for years of continuous operation.

⭐ Case Study: Appliance Manufacturer Upgrade

A UK appliance manufacturer needed an LED to protrude through a 15mm-thick molded ABS panel while providing dual-color notification (power and status). Standard 25mm LEDs required hand-soldered wire extensions, slowing production.

Switching to the 3mm bi-color LED with 53mm long leads resulted in:

• 30% faster assembly time

• Elimination of manual lead extensions

• Cleaner front-panel alignment

• Improved brightness and visibility

This LED became their standard for all future models.

⭐ User Testimonials

Manufacturing Engineer – USA
“The 53mm long pins saved us hours of wiring during assembly. Perfect for deep mounting.”

Electronics Hobbyist – Canada
“Great LED for breadboards—long leads make experimenting super easy.”

Product Designer – Germany
“Dual color plus long leads is a rare combination. Exactly what we needed for accessible status indicators.”

⭐ Conclusion

The 3mm bi-color LED diode with 3 pins and 53mm long lead length is a versatile, professional-grade indicator designed for deep-panel installations, multi-state signaling, and flexible engineering applications. With its bright dual colors, extended reach, and durable construction, this LED is an ideal choice for industrial systems, instrumentation, consumer devices, and R&D environments.

If your design requires a compact LED that offers both color versatility and long mechanical reach, this model delivers outstanding performance and value.