SX1B37.400F1010F30 37.4MHz ±10ppm 4-SMD Crystal

SX1B37.400F1010F30

Overview

SX1B37.400F1010F30 is a high-precision 37.4MHz surface mount crystal manufactured by SCTF, a reputable name in passive components. This compact 4-SMD crystal is designed to provide a stable and accurate frequency reference for a wide array of electronic circuits. As a fundamental component in timing applications, crystals like the SX1B37.400F1010F30 are crucial for microcontrollers, wireless communication modules, and digital signal processing units, ensuring synchronous operation and reliable data transfer. Its miniature footprint makes it ideal for space-constrained designs, while its robust construction ensures consistent performance across various operating conditions.

Key Specifications

ESR (Equivalent Series Resistance): 60Ω
ESR is a critical parameter that indicates the crystal’s internal resistance at resonance. A lower ESR generally signifies a more efficient crystal, requiring less drive power and exhibiting better stability. An ESR of 60Ω is typical for a crystal of this frequency and size, ensuring reliable oscillation within specified circuit designs.

Series: 1X
The ‘Series’ designation often refers to the manufacturer’s product line or specific design characteristics. In this context, ‘1X’ indicates a particular series from SCTF, which may denote specific performance characteristics, package types, or target applications that differentiate it from other crystal families.

Frequency: 37.4MHz
This is the nominal operating frequency at which the crystal is designed to resonate. A 37.4MHz frequency is commonly used in various digital and RF applications, including clock generation for microprocessors, communication transceivers, and data converters, where precise timing at this specific frequency is required.

Size (mm): 2.0×1.6×0.45
This ultra-compact dimension highlights the crystal’s miniature footprint, making it suitable for high-density PCBs and portable electronic devices where space is at a premium. The small size contributes to overall device miniaturization without compromising performance.

Mounting Type: Surface Mount
Surface Mount Technology (SMT) allows for automated assembly, reducing manufacturing costs and increasing production efficiency. Surface mount crystals are soldered directly onto the PCB surface, enabling smaller board designs and improved electrical performance due to shorter trace lengths.

Component Type: Crystal
This explicitly identifies the component as a passive crystal oscillator, which generates a precise frequency signal when excited by an external circuit. Crystals are known for their superior frequency stability and accuracy compared to LC oscillators or RC oscillators.

Package / Case: 4-SMD
The 4-SMD package refers to a four-pin surface mount device. This standard package type provides robust mechanical and electrical connections to the PCB, facilitating automated pick-and-place assembly processes common in modern electronics manufacturing.

Frequency Range: 16-54MHz
While the nominal frequency is 37.4MHz, this range indicates the broader spectrum of frequencies available within this crystal series or the typical operating range for similar crystals. It provides context for the specific 37.4MHz selection within a wider product family.

Load Capacitance: 10pF
Load capacitance is the total capacitance seen by the crystal from the external circuit. For optimal performance and to achieve the specified nominal frequency, the crystal must be driven with a circuit designed to present a 10pF load. Mismatching this value can shift the operating frequency.

Frequency Stability: ±30ppm
Frequency stability indicates how much the crystal’s output frequency can deviate from its nominal value over its operating temperature range and lifespan. A stability of ±30ppm (parts per million) signifies a high degree of precision, crucial for applications requiring consistent timing performance under varying environmental conditions.

Frequency Tolerance: ±10ppm
Frequency tolerance specifies the maximum allowable deviation of the crystal’s actual frequency from its nominal frequency at a specific reference temperature (typically 25°C). A tolerance of ±10ppm ensures that the crystal will oscillate very close to its intended 37.4MHz frequency right out of the box.

Operating Temperature: -40℃ to +85℃
This wide operating temperature range demonstrates the crystal’s resilience and suitability for industrial, automotive, and outdoor applications where extreme temperatures are common. It ensures reliable performance from very cold to very hot environments.

Features and Benefits

• High Precision and Stability: With a frequency tolerance of ±10ppm and stability of ±30ppm, the SX1B37.400F1010F30 provides an exceptionally accurate and consistent timing reference, critical for sensitive digital and RF systems.
• Ultra-Compact Footprint: The 2.0×1.6×0.45mm dimensions make this crystal ideal for miniaturized electronic devices, wearable technology, and high-density printed circuit board designs, saving valuable board space.
• Wide Operating Temperature Range: Designed to perform reliably from -40℃ to +85℃, it is suitable for demanding industrial, automotive, and telecommunications applications that experience significant temperature fluctuations.
• Surface Mount Technology (SMT): The 4-SMD package facilitates automated assembly processes, leading to reduced manufacturing costs, increased production efficiency, and improved overall product reliability due to robust soldering.
• Low Equivalent Series Resistance (ESR): An ESR of 60Ω ensures efficient oscillation with minimal power consumption, contributing to longer battery life in portable devices and reduced heat generation.

Typical Applications

• Wireless Communication Modules: Essential for providing precise clock signals to RF transceivers, baseband processors, and microcontrollers in Wi-Fi, Bluetooth, Zigbee, and other wireless communication devices, ensuring accurate data transmission and reception.
• Portable and Wearable Electronics: Its miniature size and low power consumption make it perfect for smartwatches, fitness trackers, hearing aids, and other battery-powered devices where space and energy efficiency are paramount for the 37.4MHz frequency.
• Industrial Control Systems: Used in PLCs, embedded controllers, and sensor interfaces to provide stable timing for real-time data acquisition, process control, and automation equipment operating in harsh environments.
• Automotive Electronics: Integrated into infotainment systems, engine control units (ECUs), and advanced driver-assistance systems (ADAS) to ensure reliable timing for critical functions, capable of withstanding wide temperature variations.
• Consumer Electronics: Found in digital cameras, set-top boxes, smart home devices, and multimedia players, where it provides the foundational clock signal for processors, memory controllers, and audio/video codecs, ensuring synchronized operation.

Summary

The SCTF SX1B37.400F1010F30 is a premium 37.4MHz 4-SMD crystal offering exceptional precision, stability, and a compact form factor. Its robust design and wide operating temperature range make it suitable for a diverse array of demanding electronic applications. This component is readily stocked and shipped across India by Cirkit Electro Components, Mumbai, ensuring prompt availability for your design and production needs.

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