Astronics / EADS / Racal 1260-160E High Density Microwave SPDT Switch Plug-In

The Astronics / EADS / Racal 1260-160E is a high-density microwave SPDT switch plug-in module delivering five independent relays in a compact dual-slot form factor. Designed for signal routing in demanding RF environments, this module combines long-life Aromat switching elements with SMA connectivity and operates across DC to 18 GHz. Each relay offers three SMA connectors for flexible configuration in communications, test automation, and surveillance systems.

## Technical Specifications

• **Frequency Range:** DC to 18 GHz (26.5 GHz version available upon request)
• **Switch Configuration:** Five SPDT relays per module
• **Switching Time:** <15 ms (including settling)
• **Mechanical Lifetime:** ≥5,000,000 operations per switch at rated load
• **MTBF:** 860,000 hours (MIL-HBK-217, ground-benign, 30°C, excluding relays)
• **Mean Time to Repair:** <5 minutes
• **Power Dissipation:**
– Quiescent: 0.33 W maximum
– Single switch energized: 0.88 W maximum
– All five coils energized: 4.73 W maximum
• **Current Draw:** 0.94 A
• **Connectors:** SMA (front panel); 3 SMA connectors per relay
• **Dimensions:** 4.5" H × 1.5" W × 9.5" D (dual-slot plug-in)
• **Weight:** 11.3 oz (320 g)

## Key Features

• Five independent SPDT switching elements in single module
• Low quiescent power consumption enables multi-module configurations
• Rapid switching response under 15 ms supports high-speed test protocols
• Extended switch lifetime exceeds 5 million mechanical cycles
• Compact form factor optimized for high-density mainframe integration

## Environmental Specifications

• **Operating Temperature:** −20°C to 60°C
• **Humidity:** 95% ± 5% non-condensing at 30°C
• **Operating Altitude:** 10,000 ft
• **Shock:** 30 g, 11 ms, 1/2 sine wave
• **Vibration:** 0.013 in (pk-pk), 5 to 55 Hz
• **Drop Test:** 4-inch drop at 45°

## Compatibility & Integration

• Compatible with Racal Instruments 1260-100 Adapt-a-Switch VXI carrier
• Compatible with Racal Instruments 1256 GPIB/RS-232 switching mainframe
• Requires Racal Instruments Option 01T Smart Control Module when used with 1260-100 carrier
• Four modules in single 1260-100 carrier: ~18.92 W total dissipation (within standard VXI chassis cooling)
• Carrier nominal dissipation capacity: ~100 W