Military Aviation DC Metal Relay JZC-078M 600Ω

Military Aviation DC Relay JZC-078M Series | 12V/24V/27V with Specified Coil Resistance

Product Overview

The JZC-078M series is a precision-engineered family of Military Metal Sealing Relays, characterized by their specified coil resistances for each voltage variant: 125Ω (12VDC), 480Ω (24VDC), and 600Ω (27VDC). This design ensures precise current draw and consistent magnetic performance, making it an ideal Aviation DC Relay for applications demanding predictable electrical characteristics in drones, aircraft engines, and military control systems.

Technical Specifications

• Model Series: JZC-078M
• Standard Variants:
  • JZC-078M (125Ω ±10%) - 12VDC Coil
  • JZC-078M (480Ω ±10%) - 24VDC Coil
  • JZC-078M (600Ω ±10%) - 27VDC Coil
• Contact Configuration: DPDT (2 Form C)
• Contact Rating: 1A @ 28VDC (Resistive)
• Coil Power: 0.3W - 0.43W
• Electrical Life: ≥100,000 operations
• Switching Time: ≤4ms Operate & Release
• Weight: <3g

Key Features & Advantages

• Specified Coil Resistance per Voltage: Each variant (12V/24V/27V) is engineered with a precise coil resistance (125Ω, 480Ω, 600Ω), ensuring consistent inrush and holding currents. This is critical for predictable performance in sensitive circuits, distinguishing it from generic PCB Signal Relays.
• Broad Voltage Platform Coverage: A single relay family serves the three most common military and aviation DC system voltages, simplifying design and inventory for multi-platform projects.
• Hermetically Sealed Metal Housing: As a true Military Metal Sealing Relay, it provides maximum environmental protection, ensuring reliability where standard PCB Board Relays would fail.
• Predictable Military Electromagnetic Relay Performance: The defined coil parameters allow for accurate circuit design, thermal calculations, and predictable switching behavior over the product's 100,000+ cycle life.
• Optimized for Precision Applications: Ideal for circuits where coil current and power consumption are design-critical factors, such as in battery-powered UAVs or tightly regulated avionics systems.
• Metal Sealed Military Relay JZC-078M 600Ω  27VDC
• Military Metal Sealed Relay JZC-078M 600OHM  27VDC
• Aviation  Relay JZC-078M 480 ohm 24VDC
• Military Aviation Relay JZC-078M 125 ohm 12VDC
• Military Aviation Relay for Drone,Aircraft Engine PCB Board 
• High quality Aviation relay for Engine,Train,Plane maintain

Selection & Integration Steps

1. Determine System Voltage & Current: Identify your system's nominal DC voltage (12V, 24V, or 27V) and ensure the corresponding relay's coil resistance aligns with your drive circuit's current capability.
2. Select the Correct Variant: Choose the JZC-078M with the matching voltage and coil resistance (e.g., 24V system -> 480Ω variant).
3. Circuit Design Consideration: Use the specified coil resistance to calculate expected steady-state current draw (I = V/R) for power supply sizing.
4. PCB Mounting: Install on the PCB Board Relay footprint using standard soldering processes, noting the identical mechanical form across all voltage variants.
5. Validation: Test the relay's pull-in and dropout voltages to ensure they meet your application's requirements with the precise coil characteristics.

Application Scenarios

This series delivers exceptional value in applications where electrical predictability is as important as reliability. Key uses include: UAV (Drone) flight controller and payload power switching, Aircraft engine sensor and actuator interface modules, Military vehicle electronic system control, Precision instrumentation and test equipment, and other systems where consistent coil characteristics are vital for Engine, Train, Plane maintainence diagnostics and control. It provides a superior alternative to off-the-shelf DPDT 8Pin 27V Relays where unspecified coil tolerances could impact system performance.

Quality Assurance

Manufactured in our ISO 9001 certified facility. Production of the JZC-078M includes stringent control of coil winding to achieve the specified resistance tolerances, followed by 100% electrical functional testing, ensuring each relay meets its published specifications—a standard applied across our Military Metal Relay portfolio.

Customization Services

We offer comprehensive OEM/ODM services. For volume projects, custom coil resistances, specific voltage variants outside the standard range, or specialized performance screening can be developed, leveraging the same precision engineering applied to our Polarized Relay JH-2S.

FAQ

Q: Why are the coil resistances specified for each voltage?
A: Specifying the resistance allows engineers to precisely calculate the relay's current draw, power consumption, and magnetic force. This ensures predictable performance and compatibility with the driving circuitry, which is essential for reliable system design.

Q: Are the mechanical dimensions the same for all three voltage versions?
A: Yes, all JZC-078M variants share identical external dimensions and pinouts. Only the internal coil parameters differ.

Q: Can I use the 24V/480Ω version in a 28V system?
A>It is not recommended. The relay is designed and characterized for its nominal voltage. Operating outside this range can affect switching parameters, coil temperature, and long-term reliability.

Q: Are samples available to verify coil parameters?
A: Yes, we provide samples to qualified B2B clients. You can measure the coil resistance and test performance to confirm it meets your design calculations.