SMD ps-signal-relay PS-5 2A 30VDC

Product Overview

The PS-5 series is a miniature SMD signal relay designed for space-constrained, high-reliability applications in aviation, aerospace, and industrial electronics. Rated at 2A 30VDC, this PCB Signal Relay features an ultra-compact footprint, low coil power consumption (0.3~0.43W), and fast switching (≤4ms). The PS-5 is available in a fully sealed (hermetic) metal housing, providing excellent protection against humidity, dust, and corrosive atmospheres – critical for avionics and military systems. As part of YM’s comprehensive relay family – including Metal Sealing Relay, Polarized Relay, Latching Relay , PCB Board Relay, and Military Metal Relay – the PS-5 delivers reliable low-level signal switching (down to 10μA/10mV) and long electrical life, making it ideal for flight control interfaces, navigation equipment, and ground support systems.

Technical Specifications

Coil Parameters (Non-Latching, Standard DC)

• Coil power consumption: (0.3~0.43)W
• Nominal coil voltage: 3V, 5V, 6V, 9V, 12V, 24V DC (specify when ordering)
• Pick-up voltage (max): 75% of nominal
• Drop-out voltage (min): 10% of nominal
• Coil resistance: Refer to datasheet per voltage

Contact Ratings

• Maximum switching current: 2A at 30V DC (resistive load)
• Reference resistive load: 1A, 28V DC, 1×10⁵ operations
• Low level switching capability: (10~50)μA, (10~50)mV – 1×10⁵ operations, ideal for dry circuit applications
• Initial contact resistance: ≤50mΩ; after life test ≤200mΩ

Timing & Dielectric

• Action time (operate): ≤4ms (typical ≤3ms)
• Release time: ≤4ms
• Dielectric strength (normal atmosphere): 500Vr.m.s., 50Hz; under low pressure: 250Vr.m.s., 50Hz
• Insulation resistance (normal atmosphere): >500MΩ; after high-level life test: >50MΩ

Mechanical & Environmental

• Weight: <3g – ultra-light
• Sealing (leakage rate): ≤10⁻³ Pa·cm³/s (hermetic metal can)
• Operating temperature range: -55°C to +125°C (aviation grade)
• Terminal style: SMD gull-wing or J-lead (standard EIA footprint)
• Shock & vibration: 50g, 6ms; 10-2000Hz, 20g

All parameters are validated at 25°C ambient. The PS-5 meets MIL-PRF-39016 requirements for hermetically sealed signal relays.

Product Images & Visuals

Above: PS-5 series SMD signal relay (hermetic metal package). Contact YM for dimensional outline, recommended land pattern, and soldering profiles.

Key Features & Advantages for Aviation & Smart Systems

• SMD miniature package: Occupies minimal PCB area (typical 10mm x 6mm) with low profile (5.5mm) – ideal for high-density avionics and portable devices.
• Ultra-low coil power (0.3~0.43W): Reduces thermal load and allows direct drive from logic circuits (e.g., 5V TTL/CMOS) without external drivers.
• Hermetic metal sealing (≤10⁻³ Pa·cm³/s): Glass-to-metal seal provides complete protection against moisture, salt spray, and altitude pressure changes – ensures >20 years shelf life.
• Excellent low-level signal switching: Gold-plated bifurcated contacts reliably switch down to 10μA / 10mV – no contact oxidation, perfect for sensor multiplexing and data acquisition.
• High isolation & dielectric strength: 500Vrms withstand and >500MΩ insulation prevent crosstalk in mixed-signal environments.
• Wide temperature & vibration tolerance: -55°C to +125°C operation and 20g vibration meet RTCA/DO-160 and MIL-STD-810 requirements.

YM’s engineering advantage: The PS-5 shares core contact and magnetic circuit designs with our Polarized Relay and Latching Relay families, ensuring consistent performance across temperature extremes. Compared to commercial SMD relays, the PS-5 offers true hermeticity and extended life, making it a preferred choice for mission-critical systems. YM also manufactures complementary components such as Aviation Microswitch, Aviation Rocker Switch, and Military Aviation Connector, enabling a complete signal chain solution for aircraft OEMs.

How to Use the PS-5 SMD Relay – Step by Step

1. Identify coil polarity: The PS-5 is a non-latching relay. Apply positive voltage to the coil+ pin (refer to datasheet for pin assignment). When energized, the common (C) connects to the normally-open (NO) terminal; when de-energized, it returns to normally-closed (NC).
2. PCB land pattern & soldering: Follow recommended footprint (pad size and spacing). Use reflow soldering (profile: peak 245°C ±5°C for 10 seconds max) or manual soldering (iron ≤300°C, ≤3 seconds). Avoid flux ingress – use no-clean flux.
3. Coil drive: Apply rated voltage (e.g., 5V DC) to the coil. The relay operates when voltage exceeds 75% of nominal. For sensitive circuits, add a flyback diode across the coil (1N4148 or similar) to suppress back EMF.
4. Load connection: The PS-5 is optimized for signal-level loads (2A max at 30VDC). For dry circuits (μA/mV), no special cleaning is needed due to gold plating. For inductive loads, use a snubber or diode across the load.
5. Testing: After assembly, measure coil resistance, contact resistance (≤100mΩ for new relay), and isolation between open contacts (>10MΩ).

Pro tip: For Aviation Applications, perform a pre-installation burn-in (48 hours at 70°C with periodic operation) to weed out infant mortality – YM can provide screening services per MIL-PRF-39016.

Application Scenarios & Key Buyer Benefits

Typical Aviation & High-Reliability Uses

• Avionics flight control systems: Discrete I/O expansion, flap position sensing, and autopilot mode selection – low-level switching ensures signal integrity.
• Navigation & communication radios: Frequency band switching, filter selection – hermetic sealing prevents contamination in unpressurized compartments.
• Unmanned aerial vehicles (UAVs): Lightweight (<3g) and SMD form factor enables dense PCB stacking in gimbals and mission computers.
• Ground radar & test equipment: Multiplexing of sensor channels – long electrical life reduces maintenance downtime.
• Medical implants & portable devices: Low coil power extends battery life; small size fits tight spaces.

Direct Value to International Buyers

• Cost reduction: SMD package eliminates manual through-hole assembly – lowers PCB assembly cost and increases throughput.
• Improved reliability: Hermetic sealing eliminates contact failures caused by humidity and salt spray – field return rate reduced by >80% compared to unsealed relays.
• Energy efficiency: 0.43W max coil power reduces power supply requirements and heat generation – critical for battery-operated avionics.
• Supply chain consolidation: The PS-5 complements YM’s broader portfolio, including New Energy Relay, Solid State Relay, Automotive Relay, and Industrial Power Relay – one qualified source for multiple relay types.

For military and aerospace contractors, YM provides full traceability, DPA (destructive physical analysis), and conformance to MIL-PRF-39016. The PS-5 is also suitable for commercial aviation (DO-160 qualified).

Certifications & Compliance

• MIL-PRF-39016 (hermetic signal relay) – qualification data available.
• RTCA/DO-160G (environmental): tested for temperature/altitude, vibration, humidity, and salt spray.
• ISO 9001:2015 & AS9100D certified manufacturing (aerospace quality).
• RoHS 2011/65/EU & REACH (EC 1907/2006) compliant – full material declaration.
• Hermeticity: 100% helium leak test per MIL-STD-883, method 1014 (leak rate ≤10⁻³ Pa·cm³/s).

Each production lot undergoes 100% electrical test (coil resistance, pick-up/drop-out voltage, contact resistance, dielectric strength) and sample environmental testing. Certificates of Conformance (CoC) are provided with every shipment.

Customization Options

YM supports tailored PS-5 variants for volume orders, including:

• Coil voltage: 3V, 5V, 6V, 9V, 12V, 15V, 24V, 28V DC
• Contact material: Gold (standard), AgPd, or Rhodium for ultra-low level (<1μA).
• Terminal style: Gull-wing, J-lead, or L-bend; tin or gold plating.
• Sealing enhancement: Additional internal getter for hydrogen-sensitive environments.
• Screening level: Commercial, high-reliability (burn-in, temperature cycling), or space-level (DPA, radiation tolerance).
• Marking: Laser engraving of customer part number, date code, or inspection stamp.

Our engineering team provides free samples for qualification. Minimum order quantities apply – contact YM with your requirements.

Production Process & Quality Assurance (AS9100D)

YM’s SMD signal relay production line is designed for zero-defect, fully traceable manufacturing, meeting the strict demands of aviation and military customers.

• Incoming material control: 100% inspection of magnetic alloys, contact wires, glass preforms, and metal cans – all from AS9100-certified suppliers with COC.
• Coil winding & encapsulation: Precision winding with automated tension control; vacuum encapsulation using low-outgassing epoxy (NASA compliant).
• Contact assembly in Class 100 cleanroom: Alignment under microscope; dynamic contact force measurement to ensure ≤50mΩ initial resistance.
• Hermetic sealing & leak detection: Resistance welding in dry nitrogen; 100% helium mass spectrometry leak test (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; data logging for each relay.

With decades of experience in Metal Sealing Relay and PCB Signal Relay production, YM has supplied relays to major defense and aerospace primes. The PS-5 is built to exceed the reliability requirements of next-generation avionics.