WMSIC Electronic Components

TAXM20M4RHBDDT2T

ModelTAXM20M4RHBDDT2T
PackageSMD3225-4P
BrandYJX
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
YJX TAXM20M4RHBDDT2T
Type
YJX
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YJX
Electronic Component
TAXM20M4RHBDDT2T
Electronic Component
1
Package
SMD3225-4P
Electronic Component
Passive Crystal Oscillator
Electronic Component
0.039g
Frequency
20MHz
Electronic Component
1
Electronic Component
BM0264209302
Operating Temperature
30℃~+85℃
Electronic Component
±10ppm
Crystal Oscillator Type
SMDCrystal Oscillator
Load Capacitor
15pF
Frequency
±20ppm
Electronic Component
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

TAXM20M4RHBDDT2T贴片晶振产品概述

一、产品基本定位与身份识别

TAXM20M4RHBDDT2T是雅晶鑫(YJX)推出的一款工业级贴片石英晶振,采用SMD3225-4P封装,标称频率20MHz,专为需要稳定时钟信号、小型化设计的电子设备打造。作为石英晶振的典型应用,该产品通过精准的参数设计,覆盖了消费电子、工业控制、物联网等多领域的基础时钟需求,兼顾性能与成本优势。

二、核心性能参数及实际价值

该晶振的关键参数直接决定了其应用适配性,具体解析如下:

  1. 频率精度(常温频差):±10ppm
    常温下(25℃左右),实际输出频率与标称20MHz的偏差不超过0.2kHz(20M×10ppm=200Hz),这一精度可满足智能穿戴、蓝牙模块等对时钟精度要求较高的场景,避免因频率偏差导致的通信延迟或计时误差。
  2. 负载电容:15pF
    这是振荡电路与晶振匹配的核心参数,要求外围电路采用15pF的负载电容(或等效负载电容),若偏差过大,会导致频率漂移或起振困难,需严格按规格匹配。
  3. 频率稳定度:±20ppm
    在工作温度范围(-30℃~+85℃)内,频率随温度变化的最大偏差为±20ppm(即0.4kHz漂移),可支撑户外设备、工业车间等高低温环境下的持续稳定工作。
  4. 等效串联电阻(ESR):30Ω
    ESR是晶振振荡能力的关键指标,30Ω的低ESR意味着振荡电路更容易起振,且功耗更低,尤其适合低功耗的物联网终端、智能传感器等设备。
  5. 工作温度范围:-30℃~+85℃
    覆盖了大部分民用、工业场景的温度需求,如北方冬季户外的智能路灯控制器、南方夏季车间的PLC设备等。

三、典型应用场景匹配

结合参数特点,该晶振主要适配以下场景:

  • 消费电子终端:智能手表、蓝牙耳机、智能家居控制器等小型化设备,SMD3225封装节省PCB空间,20MHz频率满足MCU、蓝牙芯片的时钟需求。
  • 工业控制设备:PLC(可编程逻辑控制器)、传感器节点、工业机器人辅助模块,宽温范围和稳定度适配车间高低温环境。
  • 物联网(IoT)终端:低功耗WiFi模块、NB-IoT终端,低ESR降低整机功耗,稳定的时钟信号保障数据传输的准确性。
  • 通信辅助模块:蓝牙5.0模块、WiFi 6e模块的时钟源,±10ppm的精度满足短距离通信的频率同步要求。

四、封装与品牌优势

  1. 封装特点:SMD3225-4P(3.2×2.5mm尺寸,4引脚贴片)
    4引脚设计相比2引脚抗干扰能力更强,能减少外界电磁干扰对时钟信号的影响;贴片封装支持自动化贴装,提升生产效率,同时适合高密度PCB设计。
  2. 品牌保障:雅晶鑫(YJX)作为国内石英晶振领域的成熟厂商,产品经过多轮可靠性测试(焊接温度测试、高低温循环测试等),质量一致性稳定,可降低终端产品的售后风险。

五、使用与选型注意事项

为确保晶振性能发挥,需注意以下几点:

  • 负载电容匹配:必须采用15pF的负载电容(或通过并联/串联电容调整至等效15pF),避免频率漂移。
  • 焊接规范:遵循SMD贴片焊接工艺,焊接温度不超过260℃(峰值),焊接时间不超过10秒,防止高温损坏晶振内部石英晶片。
  • 静电防护:晶振对静电敏感,存储、焊接过程中需采取防静电措施(如防静电袋、防静电工作台)。
  • 电路布局:晶振应靠近MCU/芯片的时钟引脚,避免长走线引入干扰,同时外围电容应尽可能靠近晶振引脚。

总结:TAXM20M4RHBDDT2T凭借精准的频率精度、宽温范围、低ESR及小型化封装,成为多领域电子设备的可靠时钟源选择,尤其适合对成本敏感且需要稳定性能的中低端应用场景。

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