MEMS-50MHz-25ppm
High-reliability 50MHz MEMS oscillator with ±25ppm stability, 2.5x2.0mm package, and excellent shock resistance.
Product Overview
Description
This MEMS oscillator uses advanced micro-electromechanical systems technology to provide exceptional reliability and shock resistance. The device can withstand 50,000g shock and operates reliably in high-vibration environments.
With ±25ppm stability over -40C to +85C, this oscillator is suitable for industrial and automotive applications. The 50MHz frequency is ideal for high-speed microcontrollers, networking equipment, and communication systems.
The ultra-compact 2.5x2.0mm package saves PCB space while providing performance superior to larger quartz oscillators. The 1.8V to 3.3V supply voltage range offers design flexibility.
Product Series
MEMS
Primary Application
Automotive electronics
Key Features
- 50MHz frequency
- 50,000g shock resistance
- ±25ppm stability
- Ultra-compact
Specifications
| Frequency | 50.000 MHz |
|---|---|
| Frequency Stability | ±25ppm over -40C to +85C |
| Supply Voltage | 1.8V to 3.3V |
| Output Type | CMOS |
| Output Level | 0.2V to VDD-0.2V |
| Rise/Fall Time | 2ns max |
| Startup Time | 3ms max |
| Shock Resistance | 50,000g |
| Operating Temperature | -40C to +85C |
| Package | SMD 2.5 x 2.0 x 0.8mm |
Applications
Automotive electronics
Automotive and EV electronics
Industrial control
Industrial automation and control
Aerospace
Electronic system design
Portable devices
Electronic system design
FAE Expert Insights
"The MEMS-50MHz-25ppm is my top recommendation for high-reliability applications. I have used this MEMS oscillator in automotive and aerospace projects where shock and vibration are major concerns. The 50,000g shock rating is genuinely impressive - far exceeding what any quartz oscillator can survive. The 50MHz frequency is perfect for high-speed ARM Cortex-M4/M7 microcontrollers. I particularly appreciate the fast 3ms startup time which enables aggressive power management. The ±25ppm stability is adequate for most industrial applications. While the cost is higher than quartz, the reliability improvement is worth it for critical applications. For automotive ECUs and industrial control systems, this MEMS oscillator provides peace of mind."
Ultra-reliable MEMS oscillator with exceptional shock resistance for demanding applications
— James Zhang, BeiLuo
Frequently Asked Questions
How does MEMS technology provide shock resistance?
MEMS oscillators achieve shock resistance through: 1) Microscopic size - the resonating element is extremely small (micrometers), making it inherently robust. 2) Silicon construction - single-crystal silicon is mechanically strong and elastic. 3) Encapsulation - the MEMS structure is hermetically sealed in a protective cavity. 4) Center-anchored design - the resonator is anchored at its center, minimizing stress from external forces. 5) High resonant frequency - MEMS resonate at MHz frequencies, far above typical shock frequencies. In contrast, quartz crystals are larger, more brittle, and can fracture under shock. The MEMS design eliminates the failure modes that affect quartz, providing 10x better shock resistance.
Choose MEMS for applications with shock, vibration, or mechanical stress.
What applications benefit most from MEMS oscillators?
Applications that benefit most from MEMS oscillators: 1) Automotive - engine control, transmission, chassis systems with high vibration. 2) Aerospace - avionics, satellites, drones with extreme shock and radiation. 3) Industrial - factory automation, robotics, heavy machinery. 4) Portable devices - smartphones, tablets subject to drops and impacts. 5) Military - ruggedized equipment for harsh environments. 6) Medical - implantable devices requiring extreme reliability. Key benefits in these applications: Shock survival, Vibration immunity, Long-term stability, Small size, Low power. The higher cost of MEMS is justified by improved reliability and reduced field failures in critical applications.
Use MEMS for high-reliability and harsh environment applications. Contact us for application guidance.
Can MEMS oscillators replace quartz in all applications?
MEMS oscillators can replace quartz in most applications, but considerations apply: Advantages of MEMS: Better shock/vibration resistance, Programmable frequencies, Faster startup, Smaller size. Limitations of MEMS: Higher cost (2x to 5x quartz), Slightly higher power, Phase noise may be higher than premium quartz. Applications where quartz remains preferred: Ultra-low phase noise RF, Lowest cost consumer products, Legacy designs without shock concerns. For new designs requiring reliability, MEMS is often the better choice. For cost-sensitive consumer products, quartz remains competitive. The decision depends on specific application requirements and cost constraints.
Evaluate MEMS vs quartz based on reliability requirements and cost budget.
What is the long-term reliability of MEMS oscillators?
MEMS oscillators have excellent long-term reliability: FIT rate - typically <10 FIT (Failures In Time per billion hours). MTBF - Mean Time Between Failures >100 million hours. Aging - ±1ppm to ±3ppm per year, better than many quartz oscillators. Field data - billions of MEMS oscillators deployed with low failure rates. Reliability advantages: No moving parts in traditional sense, Hermetic sealing prevents contamination, Silicon material is stable over time, No activity dips or frequency jumps. Qualification testing: High-temperature operating life, Temperature cycling, Mechanical shock and vibration, High-acceleration testing. MEMS reliability meets or exceeds AEC-Q100 automotive standards.
MEMS reliability is excellent for critical applications. Contact us for reliability data.
How do I handle soldering and assembly of MEMS oscillators?
MEMS oscillator soldering guidelines: Temperature profile - standard lead-free reflow profile is acceptable. Peak temperature - 260C max, typical 245-250C. Preheat - follow standard ramp rates to prevent thermal shock. Hand soldering - possible with care, limit iron temperature to 350C and time to 3 seconds. PCB layout - follow manufacturer recommendations for grounding and decoupling. Cleaning - avoid ultrasonic cleaning which can damage MEMS structures. ESD protection - handle with standard ESD precautions. MEMS devices are generally more robust than quartz during assembly due to their silicon construction and packaging. Standard SMT assembly processes work well for MEMS oscillators.
Use standard SMT assembly processes. Avoid ultrasonic cleaning.