Product parameters
|
PARAMETER |
FR07S4 |
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 |
1.9pF |
-- |
|
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
■ Unique Package:
- 7.0 × 1.5 × 1.4 mm with 4 J-leads for space-efficient PCB design
■ Surface-Mount Compatibility:
- Reliable resin-molded SMD package optimized for SMT assembly
Applications
- Designed for RTC/watch applications, the MC-146 kHz FR07S4 series crystals delivers reliable timing for real-time clocks, microcontrollers, measurement systems in automotive, and mobile devices.


Product advantages
Direct pin-compatible replacement:
HCI's FR07S4 series is a direct pin-to-pin replacement for the EPSON'S MC-146 series with competitive price.
Extreme Environment Resilience:
Maintains stable performance across a broad temperature range (-40°C to +85°C) and resists shocks/vibrations, making it suited for automotive, industrial, and harsh outdoor use.
certificate
The MC-146 kHz Crystals 7.0 x 1.5 FR07S4 series products are compliant with RoHS by exemption and Halogen-Free.




FAQ
Q1: How does temperature affect oscillator frequency stability?
A: Temperature changes cause frequency drift; TCXOs/OCXOs compensate for this via compensation circuits or ovens.
Q2: Can I get a sample with specific modifications (e.g., custom marking)?
A: Yes, custom marking (logo, part number, etc.) is available for sample orders (≥10pcs). Additional fees may apply for complex markings; confirm details with our sales team first.
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