Military Metal Sealed Relay Time Rating JZC-6Z2CM

Product Overview

The JZC-6Z2CM is a hermetically sealed, military‑grade Military Metal Relay featuring a rare 6PDT (6 Form C) contact configuration – six independent changeover contacts in a single compact package. Designed to withstand extreme acceleration of 75g, this relay is ideal for missile guidance, munitions arming, drone flight control, and high‑variance aircraft systems where conventional relays fail. The JZC‑6Z2CM serves as a direct form‑fit‑function replacement for CII brand SS series relays (e.g., SS‑6 series), offering improved life and hermetic sealing. With ultra‑low coil power consumption (0.3–0.43W), fast operate/release time (≤4ms), and time rating (pulse width 10‑50ms), it is optimized for battery‑backed and pulse‑driven circuits. Its glass‑to‑metal sealed construction guarantees leakage ≤10⁻³ Pa·cm³/s, protecting against moisture, fuel vapors, and altitude changes. As a core product in YM’s relay portfolio – which includes Metal Sealing Relay, Polarized Relay, Latching Relay, PCB Board Relay, and Industrial Power Relay – the JZC‑6Z2CM delivers uncompromised reliability for defense and aerospace programs.

Technical Specifications

Coil Parameters (27V DC Nominal)

• Coil power consumption: (0.3–0.43)W – ultra‑low for a 6PDT Military Relay
• Nominal coil voltage: 27V DC (compatible with 28V aircraft systems)
• Pick‑up voltage (max): 75% of nominal
• Drop‑out voltage (min): 10% of nominal
• Time rating (incentive pulse width): (10～50) ms – optimized for pulsed operation

Contact Ratings (6PDT – 6 Form C)

• Contact configuration: 6 independent changeover contacts (6PDT)
• Maximum switching current (resistive): 1A at 28V DC (reference test condition)
• Low level switching capability: (10–50)μA, (10–50)mV – 1×10⁵ operations, ideal for dry circuits
• Initial contact resistance: ≤50mΩ; after life test ≤200mΩ

High Acceleration & Speed Rating

• Acceleration resistance (constant / shock): 75g (for 11ms half‑sine) – designed for high‑g munitions and missile environments
• Action time (operate): ≤4ms (typical ≤3ms) – high speed switching
• Release time: ≤4ms

Dielectric & Insulation

• Dielectric strength (normal atmosphere): 500Vr.m.s., 50Hz between contacts and case; under low pressure: 250Vr.m.s.
• Insulation resistance (normal atmosphere): >500MΩ at 500V DC; after high‑level life test: >50MΩ

Mechanical & Environmental (Military Grade)

• Weight: <3g – ultra‑lightweight
• Sealing (leakage rate): ≤10⁻³ Pa·cm³/s (hermetic, glass‑to‑metal seal)
• Operating temperature range: -65°C to +125°C
• Vibration: 20g RMS, 10‑2000Hz per MIL‑STD‑810
• Terminal style: 22‑pin or 24‑pin (gold‑plated, solder hook or DIP)

All parameters validated at 25°C ambient. The JZC‑6Z2CM meets MIL‑PRF‑39016 requirements and is a direct replacement for legacy CII brand SS‑6 series relays (e.g., SS‑26, SS‑46).

Product Images & Visuals

Above: JZC‑6Z2CM series hermetically sealed 6PDT relay. Contact YM for dimensional drawing, pin configuration, and CII SS cross‑reference guide.

Key Features & Advantages – Direct CII SS Replacement

• 6PDT (6 Form C) configuration: Six independent changeover contacts in a single relay – eliminates multiple relays and saves PCB space in complex signal routing applications.
• 75g acceleration resistance: Withstands extreme shock and acceleration found in missile guidance, artillery fuzing, and high‑performance aircraft – unmatched by commercial relays.
• Hermetic metal sealing (≤10⁻³ Pa·cm³/s): Glass‑to‑metal seal protects against moisture, salt spray, and altitude changes – ensures reliable operation in unpressurized weapon bays and engine compartments.
• Ultra‑low coil power (0.3–0.43W): Allows direct drive from battery‑backed circuits; time rating (10‑50ms pulse) ideal for munitions arming where continuous power is not available.
• Fast switching (≤4ms) & high isolation: 500Vrms dielectric strength and >500MΩ insulation prevent crosstalk in high‑density signal switching.
• Direct replacement for CII brand SS series: Identical pinout, mounting dimensions, and electrical ratings – no redesign for legacy systems. Compatible with SS‑6, SS‑26, SS‑46, and similar models.

YM’s engineering advantage: The JZC‑6Z2CM leverages advanced magnetic circuit technology from our Polarized Relay and Latching relay families, ensuring consistent contact force under 75g acceleration. As a true Military Metal Relay , it outperforms CII SS relays in contact life and hermeticity. For complete defense systems, YM also offers Aviation Microswitch, Military Aviation Connector, Aviation Rocker Switch, and Aviation Button Switch – a one‑stop solution for missile and aircraft electronics.

How to Use the JZC-6Z2CM (CII SS Replacement) – Step by Step

1. Verify pinout compatibility: Compare the JZC‑6Z2CM pinout diagram with your existing CII SS relay (e.g., SS‑26). The 22‑pin arrangement is identical, including coil pins and six sets of common/NO/NC.
2. Remove old relay: Desolder or unplug the existing CII SS relay from the PCB or socket. Clean the pads with isopropyl alcohol.
3. Install JZC‑6Z2CM: Insert the new relay into the socket or PCB holes. Ensure correct orientation (pin 1 indicator).
4. Solder (if PCB mount): Use 60/40 rosin‑core solder, iron temperature ≤260°C, duration ≤5 seconds per pin. Avoid flux ingress – use no‑clean flux.
5. Coil drive (time rating): For pulsed applications, apply a 27V DC pulse (10‑50ms) to the coil pins. The relay will energize and remain in that state (non‑latching) as long as voltage is applied; for latching versions, refer to the specific datasheet.
6. Functional test under acceleration: Use a centrifuge or shock test rig to verify operation at 75g (if required). Measure contact resistance before and after – should remain ≤50mΩ.

Pro tip for munitions designers: The JZC‑6Z2CM’s time rating (10‑50ms pulse) is ideal for battery‑powered fuze circuits. YM can provide a detailed cross‑reference guide for all CII SS part numbers.

Application Scenarios & Key Buyer Benefits

Typical Military & Aerospace Applications

• Missile guidance & control systems: 6PDT configuration allows switching of multiple signals (e.g., gyro outputs, actuator commands) in a single relay – withstands 75g launch acceleration.
• Artillery fuzing & armament: Pulse‑driven coil suits battery‑powered safing/arming circuits; hermetic seal prevents environmental degradation.
• Drone flight control computers: High density switching for redundant sensor signals – lightweight and vibration‑resistant.
• Aircraft weapon release systems: Routes arming and firing commands to multiple stores – 6PDT handles up to six independent channels.
• Radar & electronic warfare (EW) modules: Signal routing in high‑g environments (e.g., podded systems).

Direct Value to International Buyers (Defense OEMs, Munitions Manufacturers, MROs)

• Eliminate obsolescence: Direct drop‑in replacement for CII SS series – ensures continued operation of legacy missile and aircraft systems.
• Reduced board space & weight: One JZC‑6Z2CM replaces three DPDT relays (or six SPDT) – cuts component count and improves reliability.
• Superior environmental performance: Hermetic sealing and 75g acceleration rating exceed original CII SS specifications – lowers field failures.
• Global compliance: MIL‑PRF‑39016 qualified, RoHS/REACH compliant, with AS9100D manufacturing – ready for FMS and direct defense contracts.

For legacy system upgrades, YM offers pre‑qualified drop‑in kits including relay, socket, and mounting hardware. Engineering samples available for qualification testing.

Certifications & Compliance

• MIL-PRF-39016 (hermetic, signal relay) – qualification data available.
• MIL-STD-810G (environmental – temperature, humidity, vibration, shock, altitude, acceleration).
• MIL-STD-202 (test methods – shock, acceleration, vibration).
• RTCA/DO-160G (airborne equipment – Category A2, S, and R).
• AS9100D (aerospace quality management).
• RoHS & REACH compliant – full material declaration available.

Each JZC‑6Z2CM relay is 100% tested for coil resistance, pick‑up/drop‑out voltage, contact resistance (each of 6 poles), dielectric strength, insulation resistance, and hermeticity (helium leak test). Sample units undergo centrifuge testing at 75g per MIL‑STD‑202. Certificates of Conformance (CoC) and test data are provided with every shipment.

Customization Options

YM supports tailored JZC‑6Z2CM variants for specific military, aerospace, and munitions programs. Volume orders can include:

• Coil voltage: 12V, 24V, 28V, 48V DC – customized to match platform power buses.
• Contact material: Gold overlay (standard for low‑level), silver‑cadmium oxide (1A power), or rhodium (ultra‑low level).
• Terminal style & finish: Solder hook, straight DIP (22‑pin), or surface‑mount; gold or tin plating.
• Screening level: Commercial (standard), high‑reliability (100% burn‑in, temperature cycling, centrifuge), or space‑level (DPA, radiation testing).
• Marking: Laser engraving of customer part number, date code, or inspection stamp.

Our engineering team provides application support, including thermal derating curves, driver circuit recommendations, and cross‑reference to CII SS part numbers. Minimum order quantities for custom variants apply – contact YM with your requirements.

Production Process & Quality Assurance (AS9100D Certified)

YM’s military relay production line follows a zero‑defect, fully traceable process designed to meet the most stringent requirements for aerospace, munitions, and defense programs.

• Raw material control: 100% verification of magnetic alloys, contact wires, glass preforms, and metal cans – all from approved aerospace suppliers with COC and batch traceability.
• Coil winding & encapsulation: Precision winding with automated tension control; vacuum encapsulation using low‑outgassing epoxy.
• Contact assembly in Class 100 cleanroom: Alignment of 6PDT contacts under 40x microscope; dynamic contact force testing to ensure ≤50mΩ resistance per pole.
• Hermetic sealing & leak detection: Resistance welding in dry nitrogen atmosphere; 100% helium mass spectrometry leak test (sensitivity 10⁻⁹ Pa·cm³/s).
• Acceleration screening (100% for high‑rel lots): Centrifuge test at 75g per MIL‑STD‑202, method 212. Also: thermal shock (-65°C to +125°C, 10 cycles), constant acceleration, and burn‑in (168 hours at 125°C).
• Final electrical test: Automated test system (ATS) measures all parameters per MIL‑PRF‑39016, including contact resistance of each of the six poles.
• Destructive Physical Analysis (DPA): One unit per lot cross‑sectioned per MIL‑STD‑1580 for internal workmanship.

With decades of experience in Metal Sealing Relay and PCB Signal Relay production, YM has supplied relays to major defense contractors and missile manufacturers. The JZC‑6Z2CM is built to exceed the reliability of original CII SS relays, ensuring long‑term support for legacy and next‑generation weapon systems.