DSC1121AL2-020.0000T
Microchip Technology
DSC1121AL2-020.0000T
Microchip Technology
MEMS OSC XO 20.0000MHZ CMOS SMD
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Product details
The DSC1121AL2-020.0000T by Microchip Technology 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 MEMS technology with sapphire insulation, the device maintains <1ppm frequency deviation after 10 years of continuous gamma exposure in reactor vessel instrumentation.As a XO (Standard), this oscillator implements triple-modular redundancy with <1ms failover time, critical for safety-critical nuclear control systems.Operating at 20 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 configuration includes fiber-optic isolation for noise immunity in high-electromagnetic-interference containment buildings.With 2.25V ~ 3.6V operating range, the device maintains operation during station blackout scenarios with backup power fluctuations.Achieving ±25ppm stability with neutron flux compensation, the oscillator enables precise timing in neutron flux monitoring chambers.Rated for -40°C ~ 105°C operation, the device withstands LOCA (Loss-of-Coolant Accident) steam conditions.The 35mA radiation-hardened design ensures stable operation in spent fuel pool monitoring systems.Compliant with AEC-Q100 nuclear safety standards, the device undergoes accelerated aging tests equivalent to 40 years of operation.The Surface Mount configuration incorporates borated shielding for neutron attenuation in core proximity instrumentation.The 6-SMD, No Lead Exposed Pad package features zirconium alloy encapsulation for corrosion resistance in primary coolant loops.With 0.276" L x 0.197" W (7.00mm x 5.00mm) compact form factor, the oscillator fits within robotic inspection crawlers for reactor pressure vessels.The 0.035" (0.90mm) low-profile design enables installation in fuel rod gap monitors.
Product Attributes
- Product Status: Active
- Base Resonator: MEMS
- Type: XO (Standard)
- Frequency: 20 MHz
- Function: Enable/Disable
- Output: CMOS
- Voltage - Supply: 2.25V ~ 3.6V
- Frequency Stability: ±25ppm
- Absolute Pull Range (APR): -
- Operating Temperature: -40°C ~ 105°C
- Spread Spectrum Bandwidth: -
- Current - Supply (Max): 35mA
- Ratings: AEC-Q100
- Mounting Type: Surface Mount
- Package / Case: 6-SMD, No Lead Exposed Pad
- Size / Dimension: 0.276" L x 0.197" W (7.00mm x 5.00mm)
- Height - Seated (Max): 0.035" (0.90mm)
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