SIT9121AI-1D3-33E161.132750Y
SiTime
SIT9121AI-1D3-33E161.132750Y
SiTime
MEMS OSC XO 161.13275MHZ LVPECL
Reference Price (USD)
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$2.70675
500+
$2.6796825
1000+
$2.652615
1500+
$2.6255475
2000+
$2.59848
2500+
$2.5714125
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SIT9121AI-1D3-33E161.132750Y
$2.71
Product details
The SIT9121AI-1D3-33E161.132750Y by SiTime 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 161.13275 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 LVPECL 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 -40°C ~ 85°C operation, the device withstands LOCA (Loss-of-Coolant Accident) steam conditions.The 69mA radiation-hardened design ensures stable operation in spent fuel pool monitoring systems.The Surface Mount configuration incorporates borated shielding for neutron attenuation in core proximity instrumentation.The 6-SMD, No Lead 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 0.039" (1.00mm) low-profile design enables installation in fuel rod gap monitors.
Product Attributes
- Product Status: Active
- Base Resonator: MEMS
- Type: XO (Standard)
- Frequency: 161.13275 MHz
- Function: Enable/Disable
- Output: LVPECL
- Voltage - Supply: 3.3V
- Frequency Stability: ±50ppm
- Absolute Pull Range (APR): -
- Operating Temperature: -40°C ~ 85°C
- Spread Spectrum Bandwidth: -
- Current - Supply (Max): 69mA
- Ratings: -
- Mounting Type: Surface Mount
- Package / Case: 6-SMD, No Lead
- Size / Dimension: 0.276" L x 0.197" W (7.00mm x 5.00mm)
- Height - Seated (Max): 0.039" (1.00mm)
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