M16878/4 MIL-Spec Wire 600V Chemical Resistant PTFE for Aircraft Electronics

Product Overview

The M16878/4 (MIL-W-16878/4 / NEMA HP-3 TYPE E) is a premium, medium-wall extruded PTFE insulated wire engineered specifically for demanding aerospace and industrial applications. Designed to meet stringent specifications, this 600V wire delivers superior thermal stability, exceptional chemical resistance, and reliable electrical performance. Whether deployed in aircraft electronics, avionics, or high-frequency circuits, the M16878/4 provides a lightweight, space-saving solution that maintains signal integrity in extreme environments.

Key Features and Benefits

Extreme Temperature Endurance: Rated for continuous operation from -60°C to +200°C with silver-plated copper conductors, and up to +250°C with nickel-plated copper conductors. Capable of withstanding short-term thermal spikes up to 300°C.

Superior Chemical and Moisture Resistance: The extruded PTFE insulation is virtually inert, resisting degradation from strong acids, solvents, oils, and moisture. It maintains structural integrity even in highly corrosive environments.

High Dielectric Strength: Offers outstanding electrical properties with a volume resistivity of up to 10^18 Ω·cm and low dielectric loss. Performance remains stable regardless of environmental or frequency variations.

Flame Retardant and Self-Extinguishing: PTFE material is inherently non-flammable and will self-extinguish immediately upon removal from a flame, ensuring enhanced safety in critical aircraft systems.

Solder Heat Resistance: Effectively resists insulation shrinkage and melting during high-temperature soldering processes, ensuring clean and reliable terminations.

Lightweight and Space-Saving: The optimized medium-wall extruded design provides maximum protection while minimizing weight and volume in dense wiring harnesses.

Technical Specifications

Extensive Size and Dimension Chart

Versatile Applications

The M16878/4 is the preferred choice for engineers requiring high-reliability wiring in harsh conditions:

Aerospace and Aviation: Aircraft internal wiring, avionics, satellite systems, and ground support equipment.

Defense: Tactical vehicles, radar systems, secure communications, and weapon systems.

Industrial Electronics: High-temperature sensors, heavy machinery, motor leads, and industrial heating elements.

High-Frequency Circuits: RF applications, microwave components, medical devices, and precision test instrumentation.

Frequently Asked Questions (FAQ)

What is the difference between M16878/4, M16878/5, and M16878/6?
The M16878/4 features a medium-wall PTFE insulation (.010 inch) with a 600V rating. The M16878/6 is a thin-wall variant rated for 250V, ideal for weight-sensitive applications. The M16878/5 has a thick-wall insulation (.015 inch) rated for 1000V for high-voltage environments.

Can this MIL-Spec wire be used in high-frequency applications?
Yes. The extruded PTFE insulation offers excellent dielectric properties with low signal loss, making the M16878/4 highly suitable for high-frequency RF, microwave circuits, and data transmission.

What is the maximum temperature rating for this wire?
With a silver-plated copper conductor, the continuous operating temperature is up to +200°C. For higher temperature requirements (up to +250°C or +260°C), we supply the nickel-plated copper variant (M16878/25).

Do you offer custom colors or dual-color striping?
Absolutely. As a dedicated PTFE wire manufacturer, we provide all standard MIL-Spec colors as well as custom dual-color striping to match your exact wiring harness specifications.

Is the M16878/4 wire RoHS compliant?
Yes, our PTFE insulated hook-up wires are manufactured to meet modern environmental and safety standards, including full RoHS compliance.

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