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Product Detailed Parameters
- Description：CRYSTAL 40.0000MHZ 10PF SMD
- Series：NX2520SA
- Mfr：NDK (NIHON DEMPA KOGYO CO., LTD)
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：MHz Crystal
- Frequency：40 MHz
- Frequency Stability：±10ppm
- Frequency Tolerance：±10ppm
- Load Capacitance：10pF
- ESR (Equivalent Series Resistance)：40 Ohms
- Operating Mode：Fundamental
- Operating Temperature：-10°C ~ 60°C
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：4-SMD, No Lead
- Supplier Device Package：-
- Size / Dimension：0.098" L x 0.079" W (2.50mm x 2.00mm)
- Height - Seated (Max)：0.026" (0.65mm)
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Overview
STDCSW2-40M is a surface-mount crystal oscillator manufactured by NDK (NIHON DEMPA KOGYO CO., LTD). It operates at a fundamental frequency of 40 MHz with a frequency stability of ±10 ppm. The component features a load capacitance of 10 pF and an equivalent series resistance (ESR) of 40 Ohms. It utilizes a 4-SMD, No Lead package configuration with dimensions of 3.2 mm x 2.5 mm. The device supports base harmonic operation mode and is designed for surface mount installation.
Feature Summary
- Surface-mount crystal oscillator design
- High frequency stability specification
- Compact footprint suitable for space-constrained applications
Applications
- General electronic circuit timing
- Microcontroller clock sources
- Communication equipment signal generation
Procurement Notes
Verify the specific operating temperature range and supply voltage requirements against the official datasheet before integration. Confirm that the 4-SMD package dimensions align with the target PCB land pattern. Ensure compatibility with reflow soldering profiles specified by the manufacturer to maintain component integrity during assembly processes.
Selection Notes
Select this component when a precise 40 MHz reference is required with tight tolerance constraints. Consider the 10 pF load capacitance requirement for circuit matching. Evaluate the physical size against available board space. Compare ESR values with oscillator circuit designs to ensure proper startup conditions are met within the system architecture.
Part Context
This part belongs to NDK's portfolio of miniature crystal devices, which emphasize high stability and accuracy. NDK leverages its expertise in artificial crystal cultivation to produce components suitable for mobile communications, automotive electronics, and IoT applications. The company maintains global production facilities to support diverse market demands.
Replacement Considerations
No direct substitute part numbers are publicly confirmed in the provided documentation. Cross-reference with other 40 MHz SMD crystals from NDK or alternative manufacturers only if electrical parameters and mechanical dimensions are strictly matched.
