3QHM53T33C0.25-19.440
Mercury United Electronics, Inc.
3QHM53T33C0.25-19.440
Mercury United Electronics, Inc.
XTAL OSC SSXO 19.4400MHZ CMOS
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Product details
The 3QHM53T33C0.25-19.440 by Mercury United Electronics, Inc. redefines Oscillators technology, specifically engineered for extreme-radiation environments in nuclear power monitoring systems. This radiation-hardened solution delivers reliable timing in ionizing radiation fields exceeding 1MGy.Featuring Crystal technology with sapphire insulation, the device maintains <1ppm frequency deviation after 10 years of continuous gamma exposure in reactor vessel instrumentation.As a SSXO, this oscillator implements triple-modular redundancy with <1ms failover time, critical for safety-critical nuclear control systems.Operating at 19.44 MHz with radiation-induced phase error correction, the solution meets IEC 61508 SIL 3 requirements for reactor protection systems.Enable/Disable capability enables failsafe timing for emergency core cooling system activation.The CMOS (Low EMI) configuration includes fiber-optic isolation for noise immunity in high-electromagnetic-interference containment buildings.With 3.3V operating range, the device maintains operation during station blackout scenarios with backup power fluctuations.Achieving ±50ppm stability with neutron flux compensation, the oscillator enables precise timing in neutron flux monitoring chambers.Rated for -45°C ~ 85°C operation, the device withstands LOCA (Loss-of-Coolant Accident) steam conditions.Implementing ±0.25%, Center Spread modulation, the oscillator reduces interference with sensitive radiation detector readouts.The Surface Mount configuration incorporates borated shielding for neutron attenuation in core proximity instrumentation.The 4-SMD, No Lead package features zirconium alloy encapsulation for corrosion resistance in primary coolant loops.With 0.197" L x 0.126" W (5.00mm x 3.20mm) compact form factor, the oscillator fits within robotic inspection crawlers for reactor pressure vessels.The 0.047" (1.20mm) low-profile design enables installation in fuel rod gap monitors.
Product Attributes
- Product Status: Active
- Base Resonator: Crystal
- Type: SSXO
- Frequency: 19.44 MHz
- Function: Enable/Disable
- Output: CMOS (Low EMI)
- Voltage - Supply: 3.3V
- Frequency Stability: ±50ppm
- Absolute Pull Range (APR): -
- Operating Temperature: -45°C ~ 85°C
- Spread Spectrum Bandwidth: ±0.25%, Center Spread
- Current - Supply (Max): -
- Ratings: -
- Mounting Type: Surface Mount
- Package / Case: 4-SMD, No Lead
- Size / Dimension: 0.197" L x 0.126" W (5.00mm x 3.20mm)
- Height - Seated (Max): 0.047" (1.20mm)
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