LED

Pin-In-Paste (PIP)

Reflow-Capable Through-Hole LED Indicators

The Lumex PIP Series is a high-performance through-hole LED solution designed for modern SMT assembly. Unlike traditional through-hole LEDs that require wave or manual soldering, the PIP series is engineered to endure reflow soldering, making it fully compatible with SMT processes.

By eliminating separate soldering steps, manufacturers can reduce assembly time, minimize production complexity, and improve process efficiency—without compromising on the reliability of through-hole technology.

Reflow Capability Without Redesign

For manufacturers already using through-hole LEDs, shifting to surface-mount alternatives often demands layout changes, added validation steps, and extended engineering time. The Lumex PIP Series eliminates this challenge by offering a reflow-capable upgrade that preserves the traditional through-hole form factor.

This means you can:

  • Preserve your existing PCB layout and mechanical footprint.
  • Avoid costly and time-consuming board redesigns.
  • Integrate with automated reflow soldering processes—no secondary wave or manual soldering required.
By combining reflow compatibility with standard through-hole mounting, the PIP Series offers a simple, low-risk path to modernize your production line while keeping your current design architecture intact.

Flexible Indicator Configurations

To accommodate a variety of design needs, the PIP series is available in multiple configurations:

  • Single-level and 4-level indicators, allowing for customized visibility and display options.
  • Single-color and YRGB (Yellow, Red, Green, Blue) LEDs, enabling multiple status indications within a single component.

These options enhance design versatility while simplifying both PCB layout and assembly.

Advantages Over SMT LEDs with Light Pipes

While SMT LEDs with external light pipes are often used to withstand reflow soldering, they come with certain limitations. They tend to occupy more PCB space due to additional lead positions and require extra assembly steps to align and secure the light pipes properly.

In contrast, the Lumex PIP Series:

  • Minimizes PCB footprint with its compact through-hole design.
  • Reduces component complexity, requiring only one component instead of a separate LED and light pipe.
  • Simplifies manufacturing by enabling single-step reflow soldering, rather than needing multiple soldering processes.

Applications & Industry Use Cases

The Lumex PIP Series is designed for applications where efficient assembly, space optimization, and long-term reliability are essential. It is particularly well-suited for:

  • Industrial Equipment – Indicator lights for control panels and monitoring systems.
  • Telecommunications – Signal and network status indicators.
  • Medical Devices – LED indicators for diagnostic and monitoring equipment.
  • Automotive Electronics – Dashboard displays, interior indicators, and warning systems.
  • Consumer Electronics – Compact LED indicators for smart devices and home automation products.

Product Variants & Specifications

The PIP series is available in multiple configurations to meet different design requirements:

  • SSF-H131XW3-MX: A single-level through-hole indicator with single-color LED options.
  • SSF-H431XXW3-MX: A 4-level through-hole indicator with multi-color YRGB LED options.

Both configurations are fully reflow-capable, allowing seamless integration into modern SMT assembly lines while maintaining the reliability and mechanical stability of through-hole components.