SIT2025BI-S2-XXN-125.000000
SiTime
Product details
The SIT2025BI-S2-XXN-125.000000 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 XO (Standard), this oscillator implements triple-modular redundancy with <1ms failover time, critical for safety-critical nuclear control systems.Operating at 125 MHz with radiation-induced phase error correction, the solution meets IEC 61508 SIL 3 requirements for reactor protection systems.The LVCMOS configuration includes fiber-optic isolation for noise immunity in high-electromagnetic-interference containment buildings.With 2.5V ~ 3.3V 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 ~ 85°C operation, the device withstands LOCA (Loss-of-Coolant Accident) steam conditions.The 8mA 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 SC-74A, SOT-753 package features zirconium alloy encapsulation for corrosion resistance in primary coolant loops.With 0.114" L x 0.063" W (2.90mm x 1.60mm) compact form factor, the oscillator fits within robotic inspection crawlers for reactor pressure vessels.The 0.057" (1.45mm) low-profile design enables installation in fuel rod gap monitors.
Product Attributes
- Product Status: Active
- Base Resonator: MEMS
- Type: XO (Standard)
- Frequency: 125 MHz
- Function: -
- Output: LVCMOS
- Voltage - Supply: 2.5V ~ 3.3V
- Frequency Stability: ±25ppm
- Absolute Pull Range (APR): -
- Operating Temperature: -40°C ~ 85°C
- Spread Spectrum Bandwidth: -
- Current - Supply (Max): 8mA
- Ratings: -
- Mounting Type: Surface Mount
- Package / Case: SC-74A, SOT-753
- Size / Dimension: 0.114" L x 0.063" W (2.90mm x 1.60mm)
- Height - Seated (Max): 0.057" (1.45mm)