SIT8208AI-8F-28S-74.250000X
SiTime
SIT8208AI-8F-28S-74.250000X
SiTime
MEMS OSC XO 74.2500MHZ LVCMOS LV
Reference Price (USD)
1+
$4.86676
500+
$4.8180924
1000+
$4.7694248
1500+
$4.7207572
2000+
$4.6720896
2500+
$4.623422
Exquisite packaging
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SIT8208AI-8F-28S-74.250000X
$4.87
Product details
The SIT8208AI-8F-28S-74.250000X 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 74.25 MHz with radiation-induced phase error correction, the solution meets IEC 61508 SIL 3 requirements for reactor protection systems.Standby (Power Down) capability enables failsafe timing for emergency core cooling system activation.The LVCMOS, LVTTL configuration includes fiber-optic isolation for noise immunity in high-electromagnetic-interference containment buildings.With 2.8V operating range, the device maintains operation during station blackout scenarios with backup power fluctuations.Achieving ±10ppm 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 33mA 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 4-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: 74.25 MHz
- Function: Standby (Power Down)
- Output: LVCMOS, LVTTL
- Voltage - Supply: 2.8V
- Frequency Stability: ±10ppm
- Absolute Pull Range (APR): -
- Operating Temperature: -40°C ~ 85°C
- Spread Spectrum Bandwidth: -
- Current - Supply (Max): 33mA
- Ratings: -
- Mounting Type: Surface Mount
- Package / Case: 4-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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