FSX-5L | Glass Sealed Quartz Crystal Resonator
5.0×3.2mm SMD | FCX-5G pin to pin FSX-5L
FEATURE
Product Description
FSX-5L Glass Sealed Quartz Crystal Resonator (Legacy SMD Series)
FSX-5L is a glass sealed SMD quartz crystal resonator with a 5.0×3.2 mm ceramic package, widely used in desktop computers, set-top boxes, TVs, and other consumer electronics. It offers dependable frequency control in high-heat environments and maintains good reliability over time.
⚠️ Note: FSX-5L is maintained for legacy support only. For new design and production, we recommend using FCX-5G — a modern replacement with higher reliability and long-term sourcing security.
Key Features
- Glass sealed ceramic package: 5.0 × 3.2 × 1.3 mm
- Frequency range: 8 ~ 54 MHz
- Excellent environmental resistance
- RoHS compliant (Pb exempted by directive)
- High precision and long-term reliability
Recommended Upgrade: FCX-5G
FCX-5G Quartz Crystal Resonator — Preferred for New Designs
- Same 5.0×3.2 mm footprint with seamless migration
- Higher temperature resilience
- Optimized ESR and stability for digital systems
- Compatible with modern SMT processes
Electrical Specifications
| Parameter | Symbol | Typical Value | Unit |
|---|---|---|---|
| Nominal Frequency | F | 8 ~ 54 | MHz |
| Frequency Tolerance (25°C ±3°C) | FT | ±10 | ppm |
| Frequency Stability | ST | ±15 ppm @ -40~85°C ±30 ppm @ -40~105°C ±80 ppm @ -40~125°C |
ppm |
| Operating Temperature | Topr | -40 ~ +125 | °C |
| Load Capacitance | CL | 6 / 10 / 18 or specified | pF |
| Drive Level | DL | 50 ~ 200 | μW |
| Equivalent Series Resistance | ESR | ≤120Ω (8–20 MHz) ≤60Ω (20–26 MHz) ≤40Ω (26–54 MHz) |
Ω |
| Aging (1st year) | - | ±3 | ppm |
Typical Applications
- Desktop Computers and Notebooks
- Set-Top Boxes and Routers
- Monitors and Televisions
- USB Hubs and Game Consoles
- Printers and Peripheral Modules
FAQ
Is FSX-5L still in production?
Yes, FSX-5L is available for replacement and long-life system use. However, FCX-5G is the preferred choice for all new designs.
What's the difference between FSX-5L and FCX-5G?
FCX-5G offers improved temperature performance, better ESR, and longer-term supply support, with the same SMD layout as FSX-5L.
Get Support
Contact our team at FCom@fujicrystal.com or view all timing devices for your legacy and next-gen designs.
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