WMSIC Electronic Components

SCTF SXTF321532768A20F

ModelSXTF321532768A20F
PackageSMD3215
BrandSCTF
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
SCTF SXTF321532768A20F
Type
SCTF
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SCTF
Electronic Component
SXTF321532768A20F
Electronic Component
1
Package
SMD3215
Electronic Component
Passive Crystal Oscillator
Electronic Component
0.041g
Frequency
32.768kHz
Electronic Component
1
Electronic Component
BM0266061189
Operating Temperature
40℃~+85℃
Electronic Component
±20ppm
Crystal Oscillator Type
SMDCrystal Oscillator
Load Capacitor
12.5pF
Frequency
±30ppm
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.

SCTF SXTF321532768A20F 贴片晶振产品概述

一、产品定位与核心价值

SXTF321532768A20F是星通时频(SCTF)推出的工业级32.768kHz低频贴片晶振,专为需要精准计时、低功耗、小型化设计的电子设备打造。作为实时时钟(RTC)系统的核心频率源,它以稳定的输出、宽泛的环境适应性和紧凑的封装,成为智能穿戴、工业控制、车载电子等领域的优选器件。其核心价值在于平衡了“计时精度”与“环境可靠性”,无需额外温控或复杂电路,即可满足不同场景下的长期稳定计时需求。

二、关键参数深度解析

该晶振的核心参数针对低频计时场景做了针对性优化,关键指标解读如下:

  1. 标准计时频率:32.768kHz是RTC系统的通用基准频率(2^15 Hz),可直接通过分频得到1Hz的秒信号,无需复杂分频电路,大幅简化系统设计;
  2. 常温频差±20ppm:频差为百万分之一(ppm),32.768kHz下误差约0.655Hz/秒,换算为每天误差仅约56.6ms,满足绝大多数消费电子与工业设备的计时精度要求;
  3. 负载电容12.5pF:需匹配外部12.5pF的负载电容(通常由晶振电路中的两个电容并联实现),确保晶振工作在谐振状态,输出频率稳定;
  4. 频率稳定度±30ppm:覆盖温度(-40℃~+85℃)、电压波动等环境变化带来的总频偏,比常温频差更具包容性,保障极端环境下的计时准确性;
  5. 等效串联电阻(ESR)70kΩ:ESR越低,晶振的能量损耗越小、起振速度越快,70kΩ的参数处于32.768kHz晶振的常规优质区间,兼顾损耗与成本;
  6. 工业级温度范围:-40℃~+85℃的工作温度,可适应户外、车载、工业现场等高低温场景,无需额外温控措施。

三、封装设计与典型应用

该晶振采用SMD3215贴片封装,尺寸为3.2mm×1.5mm×0.8mm(长×宽×高),具有以下优势:

  • 无引脚/小引脚设计,适合SMT自动化贴装,提高生产效率;
  • 紧凑体积适配小型化设备,如智能手环、蓝牙耳机等便携产品;
  • 贴片结构抗振动、抗冲击性能优于插件晶振,适合车载、工业控制等振动环境。

典型应用场景:

  • 智能穿戴:智能手表、手环的RTC模块,保障时间显示精准;
  • 工业控制:PLC、传感器节点的计时单元,实现定时采样与控制;
  • 车载电子:车载导航、仪表盘的时钟系统,适应汽车舱内高低温变化;
  • 智能家居:智能门锁、温控器的定时功能,提升设备智能化水平。

四、可靠性与环境适应性

SXTF321532768A20F通过严格的可靠性测试,满足以下环境要求:

  • 温度稳定性:在-40℃~+85℃范围内,频率稳定度控制在±30ppm内,避免温度变化导致计时偏差;
  • 抗振动冲击:通过10~2000Hz的振动测试(加速度1.5g),可承受设备运行中的轻微振动;
  • 环保合规:符合RoHS、REACH等国际环保标准,无铅无卤,适配绿色电子产品设计;
  • 长期可靠性:MTBF(平均无故障时间)超过10万小时,满足设备长期运行需求。

五、品牌与质量保障

星通时频(SCTF)是国内专注频率器件研发与生产的高新技术企业,拥有10余年晶振制造经验:

  • 产品通过ISO9001质量体系认证,每批次晶振均经过全参数测试,确保一致性;
  • 供货稳定,具备年产能千万级的生产能力,可满足批量订单需求;
  • 提供完善的技术支持,针对不同应用场景提供电路匹配建议,降低客户开发成本。

该晶振以“精准、稳定、小型化”为核心,适配多领域计时需求,是替代进口低频晶振的高性价比选择。

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