Military & Aviation Grade Sealed Relay JZC-200MD 27VDC
YM's JZC-200MD 27VDC is a high-reliability, metal-hermetically sealed electromagnetic relay engineered for critical applications in military, aviation, aerospace, and high-end industrial sectors. This Military Metal Sealing Relay is designed to deliver uncompromising performance in extreme environments, offering exceptional durability, stable signal transmission, and long service life for PCB Board Relay applications in engine controls, train systems, plane maintenance, and drone PCBs.
Technical Specifications
Electrical Parameters
- Coil Voltage: 27VDC (Standard). Other voltages (e.g., 12VDC, 24VDC) available upon request.
- Coil Power Consumption: (0.3 ~ 0.43)W.
- Contact Form: DPDT (Double Pole Double Throw).
- Contact Load & Life:
- Resistive Load: 1A, 28V DC, ≥ 1 x 105 operations.
- Low-Level Load: (10~50)μA, (10~50)mV, ≥ 1 x 105 operations.
- Contact Resistance:
- Initial Value: ≤ 50mΩ.
- After Endurance Test: ≤ 200mΩ.
Performance & Environmental Parameters
- Time Parameters:
- Operate Time: ≤ 4ms.
- Release Time: ≤ 4ms.
- Incentive Pulse Width: (10～50) ms.
- Dielectric Strength:
- At Normal Atmospheric Pressure: 500Vr.m.s., 50Hz.
- At Low Pressure: 250Vr.m.s., 50Hz.
- Insulation Resistance:
- At Normal Atmospheric Pressure: > 500MΩ.
- After High-Level Life Test: > 50MΩ.
- Weight: < 3g.
- Hermetic Seal (Tightness): Leakage rate ≤ 1.0 x 10-3 Pa·cm³/s.
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Key Features & Advantages
- Military-Grade Hermetic Sealing: Full metal weld sealing ensures complete protection against dust, moisture, salt spray, and other corrosive gases, guaranteeing stable operation in harsh environments. This makes it an ideal Military Metal Relay.
- High Reliability & Long Life: Precision engineering and premium materials deliver over 100,000 reliable switching cycles, even under low-level or resistive loads, minimizing maintenance and replacement costs.
- Extreme Environment Performance: Designed to withstand wide temperature ranges, vibration, shock, and low pressure, meeting the rigorous demands of Aviation DC Relay and military applications.
- Ultra-Fast Switching: With operate/release times ≤4ms, it ensures rapid and precise control in critical circuits, suitable for high-speed signal switching.
- Lightweight & Compact Design: Weighing under 3 grams, it is perfect for weight-sensitive applications like drones, Aviation Electronics, and portable military equipment without compromising performance.
- Excellent Electrical Isolation: High dielectric strength and insulation resistance prevent leakage and crosstalk, ensuring signal integrity and system safety.
How to Integrate the JZC-200MD Relay
- Circuit Design Review: Verify that your PCB layout accommodates the relay's 8-pin DPDT footprint and provides the necessary clearance for the metal casing.
- Coil Driving: Ensure your driver circuit can provide a stable 27VDC (or specified coil voltage) with sufficient current. A flyback diode across the coil is recommended to suppress voltage spikes.
- Soldering: Use appropriate reflow or hand-soldering techniques suitable for PCB-mounted components. Avoid excessive heat to prevent damage to the internal seal.
- Testing: Before full deployment, conduct functional tests under both low-level and rated load conditions to verify switching performance and contact integrity.
- Environmental Sealing (if applicable): While the relay itself is sealed, ensure the surrounding assembly on the PCB is adequately protected if used in extreme environments.
Application Scenarios
The JZC-200MD is a versatile Industrial Power Relay and PCB Signal Relay solution for mission-critical systems:
- Aviation & Aerospace: Engine control units (ECU), flight control systems, navigation equipment, and onboard power distribution in aircraft and satellites. A core component as an Aviation Latching Relay alternative for specific functions.
- Military & Defense: Communication systems, radar equipment, weapon control systems, and military vehicle electronics where reliability is paramount.
- Unmanned Aerial Vehicles (Drones): Power management, gimbal control, and payload activation in commercial and military drones.
- Transportation: Control and signaling systems in railway (train) locomotives, marine electronics, and specialized automotive (Automotive Relay for high-end/commercial vehicles) applications.
- High-End Industrial Automation: Precision control circuits, safety interlock systems, and test & measurement equipment that require fault-free switching.
- New Energy: Can be adapted for auxiliary control circuits in New Energy Relay applications such as battery management systems (BMS) and charging infrastructure.
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Value for Procurement Managers & Engineers
- Reduce System Downtime: Extreme reliability minimizes failures in critical systems, lowering total cost of ownership.
- Simplify Design & Sourcing: A single, qualified component replaces multiple less robust parts, simplifying your BOM and supply chain.
- Mitigate Project Risk: Compliance with military and aviation durability standards de-risks product development for harsh environments.
- Enhance Product Performance: Fast switching and stable contacts improve the accuracy and speed of your control systems.
Quality Assurance & Compliance
YM's manufacturing processes for the JZC series relays adhere to stringent quality control protocols, drawing from standards applicable to military and aviation components. While specific certifications may vary by order batch, our production aligns with the reliability and testing philosophies of:
- MIL-STD (relevant sections for relays)
- ISO 9001 Quality Management Systems
- RoHS & REACH Environmental Compliance
Each batch undergoes rigorous electrical, mechanical, and hermetic seal testing.
Customization & OEM Services
As a specialist manufacturer, YM provides flexible customization options to meet your exact project requirements:
- Coil Voltage: Custom coil voltages (e.g., 5VDC, 12VDC, 24VDC, 48VDC) beyond the standard 27VDC.
- Lead Type & Length: Options for straight or bent pins, different pin materials, or customized lead lengths.
- Testing & Screening: Additional 100% screening tests per customer-specific requirements (e.g., extended burn-in, thermal cycling).
- Marking & Labeling: Custom part numbers, date codes, or logos on the relay casing.
- Bespoke Designs (ODM/OEM): Leverage our expertise in Military Electromagnetic Relay and Solid State Relay technologies to develop tailored solutions.
Precision Manufacturing Process
- Precision Stamping & Forming: High-precision molds create contact springs and core metal parts.
- Automatic Coil Winding: Automated winding ensures consistent coil parameters and reliability.
- Cleanroom Assembly: Critical assembly steps occur in controlled environments to prevent contamination.
- Hermetic Laser Welding: The metal enclosure is sealed using laser welding technology to achieve the specified leakage rate.
- Multi-Stage Testing: Every unit undergoes electrical parameter testing, seal testing, and final performance verification.
Frequently Asked Questions (FAQ)
Q1: What is the main advantage of a metal-hermetically sealed relay like the JZC-200MD over a plastic epoxy-sealed relay?
A1: Metal hermetic sealing provides a superior and permanent barrier against environmental factors like humidity, oxygen, and corrosive gases, which can slowly permeate plastic seals over time. This guarantees much longer-term contact stability and reliability, especially in high-vibration or extended temperature cycling environments typical of aviation and military use.
Q2: Can this relay be used as a direct replacement for a Solid State Relay (SSR)?
A2: Not directly. While both are used for switching, electromagnetic relays (like the JZC-200MD) and SSRs have different principles. This relay is ideal for applications requiring physical contact isolation, very low on-state resistance, and bi-directional current flow. SSRs may be better for ultra-high cycle counts or where silent operation is critical. Our engineers can help you select the right technology.
Q3: Is the JZC-200MD suitable for high-vibration environments like engine controls?
A3: Yes. Its robust internal construction, lightweight moving parts, and solid metal enclosure make it inherently resistant to vibration and shock, a key reason it is specified for engine, train, and aircraft PCB boards.
Q4: What is the typical lead time for standard and customized orders?
A4: Standard 27VDC models are typically available from stock or with a short lead time (2-4 weeks). Customized voltages or specifications generally require 6-8 weeks for production and testing.
Q5: Do you provide samples for qualification testing?
A5: Yes, we encourage qualification testing. A limited number of evaluation samples are available for qualified potential partners. Please contact our sales team to discuss your project requirements and sample availability.
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