Product parameters
|
PARAMETER |
FL37S2 |
CONDITIONS / REMARKS |
|
Nominal frequency range |
32.768kHz |
-- |
|
Vibration mode |
Fundamental |
-- |
|
Frequency tolerance |
±20ppm / ±30ppm |
Other options available. |
|
Stability over temperature |
-0.04ppm/°C² MAX |
Parabolic coefficient. |
|
Operating temperature range |
-20 to +70°C or -40 to +85°C |
Other options available. |
|
Turnover temperature |
+25±5°C |
-- |
|
Equivalent series resistance (ESR) |
<65kΩ |
@ series load |
|
Shunt capacitance |
0.8pF |
-- |
|
Motional capacitance |
3.2fF |
-- |
|
Load capacitance |
6pF/ 7pF / 9pF/ 12.5pF |
Please specify. |
|
Drive level |
0.1μW TYP / 1.0μW MAX |
-- |
|
Aging per year |
±3ppm |
At +25°C |
Product Features
■ Package dimensions:
- 7.5x3.1x2.3 with 2 leads
■ Frequency tolerance:
- ±20ppm / ±30ppm, with other options available
■ Annual aging rate:
- ±3ppm (at +25°C)
Applications
- Mini 49 SMD 32.768kHz Crystal FL37S2 series suitable for RTC and Clocks, microprocessors, timers and controllers, meters and handheld devices.
Product advantages
Custom Parameter Configuration:
Fully customizable to meet client-specific technical requirements
Long-Term Supply Commitment:
Legacy project support guaranteed and No EOL (End-of-Life) planned for overseas deployments
certificate
Mini 49 SMD 32.768kHz Crystal FL37S2 series is RoHS and REACH compliant, and meets lead-free and halogen-free standards.
FAQ
Q1: How to quickly determine whether to use a narrow or wide temperature range when selecting the operating temperature range?
A: Consider the device's operating environment. For ordinary indoor electronic products (e.g., Bluetooth speakers), choose the narrow temperature range model (-20 ~ +70°C). For automotive, outdoor equipment, or other scenarios with significant temperature variations, prioritize the wide temperature range version (-40 ~ +85°C).
Q2: What does the aging rate of a crystal oscillator mean, and should we be concerned about it?
A: It refers to the annual frequency deviation range. An aging rate of 3ppm/year is negligible-ordinary devices can operate for years without noticeable errors. For ultra-high-precision equipment, regular calibration is sufficient.
Q3: How to select the load capacitance from the available options of 7pF/9pF/12.5pF?
A: Select based on circuit design requirements. Refer to the equipment manual or consult us beforehand to ensure the load capacitance matches, guaranteeing stable frequency output from the crystal oscillator.
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