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Product Detailed Parameters
- Description：CRYSTAL 25.0000MHZ 8PF SMD
- Series：NX8045GB
- Mfr：NDK (NIHON DEMPA KOGYO CO., LTD)
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：MHz Crystal
- Frequency：25 MHz
- Frequency Stability：±30ppm
- Frequency Tolerance：±20ppm
- Load Capacitance：8pF
- ESR (Equivalent Series Resistance)：50 Ohms
- Operating Mode：Fundamental
- Operating Temperature：-10°C ~ 70°C
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：2-SMD, No Lead
- Supplier Device Package：-
- Size / Dimension：0.315" L x 0.177" W (8.00mm x 4.50mm)
- Height - Seated (Max)：0.079" (2.00mm)
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Overview
The NDK STDCSF4-25M is a surface-mount fundamental mode quartz crystal resonator operating at 25 MHz. It features an 8 pF load capacitance and a maximum equivalent series resistance (ESR) of 250 Ohms. The component utilizes a 2-SMD, no lead package with dimensions of 5.0 mm x 3.2 mm. It supports a standard operating temperature range of -40°C to +85°C and offers a frequency tolerance of ±20 ppm. The device complies with RoHS standards and has a Moisture Sensitivity Level (MSL) rating of 1.
Feature Summary
- Fundamental mode operation for stable oscillation
- Compact 2-SMD surface mount footprint
- Wide industrial temperature capability
Applications
- Industrial control systems
- Automotive electronics
- Communication equipment
Procurement Notes
Verify the specific load capacitance requirement against the target circuit design before procurement. Confirm that the 250 Ohm ESR limit aligns with the oscillator circuit's drive level constraints. Ensure the 2-SMD package dimensions fit within the designated PCB layout area. Check for any specific handling requirements related to the no-lead solder termination style during assembly processes.
Selection Notes
Select this component when a 25 MHz reference signal is required in space-constrained applications. The 250 Ohm ESR makes it suitable for circuits with higher impedance requirements compared to lower ESR alternatives. Consider the 8 pF load capacitance compatibility with the host microcontroller or oscillator IC. The wide temperature range ensures reliability in harsh environments where standard commercial grade parts may fail.
Part Context
This part belongs to the STD-CSF series of SMD crystals from NDK. It shares the NX5032GA form factor characteristics but differs in electrical parameters like ESR and load capacitance compared to other models in the NX3225SA or NX1612AA series. It is designed for general purpose clock generation in digital logic circuits.
Replacement Considerations
- STDCSF4-26M
- STDCSF4-7.5M
FAQ
What is the maximum Equivalent Series Resistance (ESR) for this crystal?
The maximum ESR is specified as 250 Ohms.
Does this component support automotive temperature ranges?
Yes, it operates within a temperature range of -40°C to +85°C.
