WMSIC Electronic Components

HCI 049ST2-12.000F18DTLJL 049ST2

Model049ST2-12.000F18DTLJL
PackageHC-49S-2P
BrandHCI
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
HCI 049ST2-12.000F18DTLJL
Type
HCI
Minimum package
200 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HCI
Electronic Component
049ST2-12.000F18DTLJL
Electronic Component
1
Package
HC-49S-2P
Electronic Component
Passive Crystal Oscillator
Electronic Component
0.58g
Frequency
12MHz
Electronic Component
1
Electronic Component
BM0264982104
Operating Temperature
40℃~+85℃
Electronic Component
±20ppm
Crystal Oscillator Type
Through-hole Crystal Oscillator
Load Capacitor
18pF
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.

049ST2-12.000F18DTLJL 直插石英晶振产品概述

一、产品核心定位与品牌背景

049ST2-12.000F18DTLJL是杭晶电子(HCI) 推出的通用型直插石英晶振,采用经典HC-49S封装,以12MHz为核心频率,兼顾「精度稳定性」与「工业级环境适应性」,是中低端电子设备的高性价比频率基准元件。

HCI作为国内石英晶振行业主流厂商,拥有10余年生产经验,产品覆盖消费电子、工业控制、通信等领域,通过ISO9001质量体系认证,符合RoHS环保标准,可靠性经市场批量验证。

二、关键技术参数深度解析

该产品的核心参数适配多数电子设备的时钟需求,关键指标如下:

1. 频率与频差

  • 核心频率:12MHz(电子设备中广泛应用的标准时钟频率,兼容8位/16位单片机、通信芯片的分频需求);
  • 常温频差:±20ppm(25℃环境下,频率偏移量为±240Hz,满足工业控制、消费电子的基础精度要求,无需额外温补/压控)。

2. 负载电容与频率稳定度

  • 负载电容:18pF(晶振正常工作所需的外部等效负载电容,电路设计需匹配该值,否则会导致频率偏移);
  • 温度范围稳定度:±30ppm(在-40℃~+85℃全工作温度内,频率相对于常温的最大变化量,确保宽温场景下的时钟稳定性)。

3. ESR与工作温度

  • 等效串联电阻(ESR):50Ω(HC-49S封装的低阻区间,低ESR可降低振荡电路功耗,提升起振成功率);
  • 工作温度:-40℃~+85℃(工业级温度标准,适配户外终端、车载设备、工业现场等极端环境)。

三、HC-49S封装物理特性

HC-49S是石英晶振的经典直插封装,具备以下优势:

  • 尺寸与引脚:常规尺寸11.5mm(长)×4.7mm(宽)×3.8mm(高),2引脚直插式,便于手工焊接或插件生产线组装;
  • 防护性能:金属外壳+陶瓷基座,抗振动、抗冲击能力强(可耐受10g~20g振动),同时隔绝湿度与灰尘,提升产品寿命(MTBF≥10万小时);
  • 兼容性:无需复杂贴装设备,适配中小批量生产与原型开发。

四、典型应用场景覆盖

该产品因「成本低、易焊接、宽温稳定」,广泛应用于以下领域:

  1. 工业控制:PLC、变频器、传感器模块的时钟基准(适配工业现场-20℃~+60℃的环境);
  2. 通信与网络:小型基站、路由器、交换机的辅助时钟(12MHz与多数通信芯片分频需求匹配);
  3. 消费电子:机顶盒、智能电视、智能家居设备的主控芯片时钟(兼顾成本与稳定性);
  4. 车载电子:车载仪表盘、车机系统的时钟源(适配汽车级-40℃~+85℃温度);
  5. 仪器仪表:示波器、万用表的辅助频率基准(确保测量精度)。

五、选型与使用注意事项

为确保产品性能稳定,需注意以下细节:

  1. 负载电容匹配:电路中需通过外部电容(如两个33pF并联)实现18pF等效负载,避免频率偏移;
  2. 振荡电路设计:推荐采用单片机内置振荡电路(如STC/ATmega系列的XTAL1/XTAL2引脚),配合匹配电容即可起振;
  3. 焊接防护:烙铁温度≤350℃,焊接时间≤3秒,避免高温损坏晶振;搬运时需佩戴静电手环(晶振对静电敏感,ESD≥2kV);
  4. 环境限制:仅适用于-40℃~+85℃,极端温度场景需选温补晶振(TCXO);
  5. 批量供货:支持常规批量(1000pcs起订),交货周期3~7天,可提前与供应商确认库存。

该产品以「高性价比+工业级可靠性」成为中小电子设备的主流时钟选择,适配多数常规应用场景的频率基准需求。

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