JRC-26M RG2.0035.027-03 Military Relay

Product Overview

The JRC-26M RG2.0035.027-03 is a hermetically sealed, high‑reliability Military Metal Relay designed for defense, aerospace, and industrial applications. This Metal Sealing Relay is a direct form‑fit‑function replacement for the obsolete Russian P3K23 relay, offering upgraded performance and long‑term availability. Featuring a rugged glass‑to‑metal sealed construction (leakage ≤10⁻³ Pa·cm³/s), low coil power consumption (0.3–0.43W), and fast switching (≤4ms), the JRC‑26M is ideal for mission‑critical circuits in aircraft, radar systems, communication equipment, and ground support vehicles. With its Latching Relay (bistable) or non‑latching variants available, the JRC‑26M provides zero holding power options for energy‑sensitive applications. As a core product in YM’s military relay portfolio – which includes Polarized Relay, PCB Board Relay, Automotive Relay, Industrial Power Relay, and PCB Signal Relay – the JRC‑26M delivers uncompromised performance for modernization programs and legacy system upgrades.

Technical Specifications

Coil Parameters (27V DC Nominal)

• Nominal coil voltage: 27V DC (compatible with 28V aircraft systems)
• Coil power consumption: (0.3–0.43)W – ultra‑low for military relay
• Pick‑up voltage (max): 75% of nominal
• Drop‑out voltage (min): 10% of nominal (for non‑latching)
• Coil resistance: Approx. 1700–2400Ω at 25°C

Contact Ratings

• Contact configuration: 2 Form C (DPDT) – changeover contacts
• Maximum switching current: 5A at 28V DC (resistive); 2A at 115V AC 400Hz
• Low level switching capability: (10–50)μA, (10–50)mV – 1×10⁵ operations
• Reference resistive load (test): 1A, 28V DC, 1×10⁵ operations
• Initial contact resistance: ≤50mΩ; after life test ≤200mΩ

Timing & Isolation

• Action time (operate): ≤4ms (typical ≤3ms)
• Release time (non‑latching): ≤4ms
• 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 – lightweight for airborne use
• Sealing (leakage rate): ≤10⁻³ Pa·cm³/s (hermetic, glass‑to‑metal seal)
• Operating temperature range: -65°C to +125°C
• Shock & vibration: Withstands 50g, 6ms half‑sine; 10‑2000Hz, 20g random vibration per MIL‑STD‑810
• Terminal style: Solder hook or PCB through‑hole (gold‑plated)

All parameters are validated at 25°C ambient. The JRC‑26M meets MIL‑PRF‑39016 requirements and is fully compatible with legacy Russian P3K23 pinout and mounting dimensions.

Product Images & Visuals

Above: JRC-26M series relay (hermetic metal can, DPDT). Contact YM for detailed pinout matching P3K23 and environmental qualification reports.

Key Features & Advantages – Direct Replacement for Russia P3K23

• Exact form‑fit‑function replacement for P3K23: Same pinout, mounting dimensions, and electrical ratings – no redesign required for legacy systems.
• Hermetic metal sealing (≤10⁻³ Pa·cm³/s): Glass‑to‑metal seal protects against moisture, salt spray, and altitude changes – ideal for unpressurized aircraft bays and outdoor military shelters.
• Ultra‑low coil power (0.3–0.43W): Reduces heat generation and power supply load – compatible with 28V DC avionics buses.
• Fast switching (≤4ms) & high isolation: 500Vrms dielectric strength and >500MΩ insulation ensure reliable signal and power switching.
• Wide temperature & vibration tolerance: -65°C to +125°C and 20g vibration meet MIL‑STD‑810 – suitable for ground vehicles, aircraft, and naval systems.
• Low contact resistance & long life: ≤50mΩ initial resistance and 1×10⁵ electrical cycles at rated load – reduces maintenance frequency.

YM’s engineering advantage: The JRC‑26M leverages proven magnetic circuit technology from our Latching relay and Polarized Relay families, ensuring consistent performance over decades of service. As a true Military Metal Relay, it outperforms commercial alternatives in hermeticity and vibration tolerance. For complete defense system integration, YM also offers Aviation Microswitch, Military Aviation Connector, Aviation Button Switch, and Aviation Rocker Switch – a one‑stop source for legacy upgrade programs.

How to Use the JRC-26M (P3K23 Replacement) – Step by Step

1. Verify pinout compatibility: Compare the JRC‑26M pinout diagram with your existing P3K23 socket – they are identical (DPDT, 8‑pin metal can base).
2. Remove old relay: Desolder or unplug the existing P3K23 relay from the PCB or socket. Clean the pads/socket with isopropyl alcohol.
3. Install JRC‑26M: Insert the new relay into the socket or PCB holes. Ensure correct orientation (polarity mark or pin1 indicator).
4. Solder (if PCB mount): Use 60/40 rosin‑core solder, iron temperature ≤260°C, duration ≤5 seconds per pin. Avoid flux ingress.
5. Coil drive: Apply +27V DC to the coil pins (observe polarity for non‑latching version). For latching versions, use a pulse (10‑50ms) to set/reset.
6. Functional test: Energize the coil and measure contact resistance across each pole (should be ≤50mΩ). De‑energize and verify insulation >10MΩ between open contacts.

Pro tip for logistics: YM provides a complete technical data package including CAGE code, NSN assignment support, and full traceability – simplifying military procurement and sustainment.

Application Scenarios & Key Buyer Benefits

Typical Military & Industrial Uses

• Legacy aircraft modernization: Replace obsolete P3K23 relays in MiG, Su, and Il‑series aircraft – improves reliability without wiring changes.
• Ground radar & communication shelters: Signal routing and power switching in field‑deployable systems – hermetic sealing withstands humidity and dust.
• Missile & weapon systems: DPDT configuration allows redundant arming circuits and guidance signal switching.
• Naval shipboard electronics: Vibration‑resistant and salt‑spray protected – ideal for combat management systems.
• Industrial control & railway: Drop‑in replacement for P3K23 in European and Asian industrial equipment – long‑term availability.

Direct Value to International Buyers (Defense OEMs, MROs, System Integrators)

• Eliminate obsolescence: Direct replacement for Russia P3K23 – ensures continued operation of legacy platforms without requalification.
• Reduced lifecycle cost: Hermetic sealing and low coil power reduce field failures and power consumption – lowers total ownership cost.
• Simplified logistics: One relay replaces multiple P3K23 variants (RG2.0035.027‑03, etc.) – reduces spare parts inventory.
• Global compliance: Manufactured under AS9100D, RoHS/REACH compliant, with MIL‑PRF‑39016 test data – accepted by NATO and allied forces.

For large‑scale 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, salt fog, altitude).
• MIL-STD-202 (test methods for electronic components).
• RTCA/DO-160G (airborne equipment – Category A2, S, and R).
• AS9100D (aerospace quality management).
• RoHS & REACH compliant – full material declaration available.

Each JRC‑26M relay is 100% tested for coil resistance, pick‑up/drop‑out voltage, contact resistance, dielectric strength, and hermeticity (helium mass spectrometry). Lot traceability per AS9100 is maintained. First Article Inspection (FAI) reports per AS9102 are provided upon request.

Customization Options

YM supports tailored JRC‑26M variants for volume defense and industrial orders. Customizations include:

• Coil voltage: 12V, 24V, 28V, 48V DC – matched to specific platform power buses.
• Contact material: Gold‑plated (standard for low‑level), silver‑cadmium oxide (5A power), or palladium (dry circuit).
• Terminal style & finish: Solder hook (standard), PCB pin, or wire leads; gold or tin plating.
• Screening level: Commercial (standard), high‑reliability (100% burn‑in, temperature cycling), or space‑level (DPA, radiation testing).
• Marking: Laser engraving of customer part number, date code, or inspection stamp.

Our engineering team provides free feasibility analysis and sample matching against your existing P3K23 units. 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 defense and aerospace programs.

• Raw material control: 100% verification of magnetic alloys, contact wires, glass preforms, and metal cans – traceable to mill test reports.
• Coil winding & encapsulation: Precision winding with automated tension control; vacuum encapsulation using low‑outgassing epoxy.
• Contact assembly in Class 100 cleanroom: Alignment under 40x microscope; dynamic force testing to ensure ≤50mΩ resistance.
• Hermetic sealing & leak detection: Resistance welding in dry nitrogen; 100% helium mass spectrometry (sensitivity 10⁻⁹ Pa·cm³/s).
• Environmental screening (high‑rel lots): Thermal shock (-65°C to +125°C, 10 cycles), constant acceleration (10,000g), and burn‑in (168 hours at 125°C).
• Final electrical test: Automated test system (ATS) measures all parameters per MIL‑PRF‑39016.
• Destructive Physical Analysis (DPA): One unit per lot cross‑sectioned per MIL‑STD‑1580.

With decades of experience in Military Metal Relay and PCB Signal Relay production, YM has supplied relays to defense forces worldwide. The JRC‑26M is built to exceed the reliability of original P3K23 relays, ensuring long‑term support for legacy and new defense systems.