SIT5155AICFK-25VT-20.000000
SiTime
SIT5155AICFK-25VT-20.000000
SiTime
MEMS OSC VCTCXO 20.0000MHZ
Reference Price (USD)
1+
$51.58000
500+
$51.0642
1000+
$50.5484
1500+
$50.0326
2000+
$49.5168
2500+
$49.001
Exquisite packaging
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SIT5155AICFK-25VT-20.000000
$51.58
Product details
The SIT5155AICFK-25VT-20.000000 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 VCTCXO, 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.The Clipped Sine Wave configuration includes fiber-optic isolation for noise immunity in high-electromagnetic-interference containment buildings.With 2.5V operating range, the device maintains operation during station blackout scenarios with backup power fluctuations.Achieving ±500ppb stability with neutron flux compensation, the oscillator enables precise timing in neutron flux monitoring chambers.The ±6.25ppm programmability allows real-time adjustment for Doppler broadening effects in reactor core analysis.Rated for -40°C ~ 85°C operation, the device withstands LOCA (Loss-of-Coolant Accident) steam conditions.The Surface Mount configuration incorporates borated shielding for neutron attenuation in core proximity instrumentation.The 10-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 0.031" (0.80mm) low-profile design enables installation in fuel rod gap monitors.
Product Attributes
- Product Status: Active
- Base Resonator: MEMS
- Type: VCTCXO
- Frequency: 20 MHz
- Function: -
- Output: Clipped Sine Wave
- Voltage - Supply: 2.5V
- Frequency Stability: ±500ppb
- Absolute Pull Range (APR): ±6.25ppm
- Operating Temperature: -40°C ~ 85°C
- Spread Spectrum Bandwidth: -
- Current - Supply (Max): -
- Ratings: -
- Mounting Type: Surface Mount
- Package / Case: 10-SMD, No Lead
- Size / Dimension: 0.197" L x 0.126" W (5.00mm x 3.20mm)
- Height - Seated (Max): 0.031" (0.80mm)
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