行业组件数据 · 2026

封装/外壳

繁體:封裝/外殼

晶体振荡器中的封装/外壳是一种精密设计的封闭体,用于容纳和保护石英晶体谐振器及相关电子元件。

技术定义与适配语境
典型 封装/外壳 会按材料、尺寸公差、适配关系和失效风险在 计算机、电子和光学产品制造 中评估。

晶体振荡器中的封装/外壳是一种精密设计的封闭体,用于容纳和保护石英晶体谐振器及相关电子元件。它承担多项关键功能,包括机械支撑、热管理、电磁干扰(EMI)屏蔽,以及防潮、防尘和防污染的环境保护。外壳通过提供受控的大气条件并最小化外部振动和热波动,来维持晶体精确的频率稳定性。 封装/外壳的工作原理基于机械保护、热管理和电磁兼容性。它提供气密或半气密密封,以维持石英晶体谐振器稳定的内部条件,防止外部元素污染,散发运行过程中产生的热量,并屏蔽敏感振荡电路免受外部电磁干扰,同时抑制其自身辐射。

组件规格

定义
晶体振荡器中的封装/外壳是一种精密设计的封闭体,用于容纳和保护石英晶体谐振器及相关电子元件。它承担多项关键功能,包括机械支撑、热管理、电磁干扰(EMI)屏蔽,以及防潮、防尘和防污染的环境保护。外壳通过提供受控的大气条件并最小化外部振动和热波动,来维持晶体精确的频率稳定性。

封装/外壳的工作原理基于机械保护、热管理和电磁兼容性。它提供气密或半气密密封,以维持石英晶体谐振器稳定的内部条件,防止外部元素污染,散发运行过程中产生的热量,并屏蔽敏感振荡电路免受外部电磁干扰,同时抑制其自身辐射。
工作原理
The package/housing operates on principles of mechanical protection, thermal management, and electromagnetic compatibility. It provides a hermetic or semi-hermetic seal to maintain stable internal conditions for the quartz crystal resonator, prevents contamination from external elements, dissipates heat generated during operation, and shields the sensitive oscillator circuitry from external electromagnetic interference while containing its own emissions.
材料
常用材料包括:柯伐合金(Fe-Ni-Co)用于金属封装陶瓷(氧化铝Al₂O₃)用于表面贴装器件塑料(PPS、LCP)用于成本敏感的应用以及玻璃用于特殊气密密封。引线框架通常采用合金42或铜合金。密封材料包括玻璃粉、焊料或环氧树脂。
Dimensions
Standard sizes: 3.2x2.5mm, 5.0x3.2mm, 7.0x5.0mm
Lead Count
4-pin, 6-pin, 8-pin configurations
Package Type
SMD (Surface Mount Device), DIP (Dual In-line Package), TO (Transistor Outline)
Sealing Type
Hermetic, Semi-hermetic, Non-hermetic
Mounting Height
0.8mm to 1.2mm typical
Storage Temperature
-55°C to +125°C
Operating Temperature
-40°C to +85°C (Commercial), -40°C to +125°C (Industrial)
Moisture Sensitivity Level
MSL 1 to MSL 3
标准
ISO 9001IEC 60122-1JESD22-A113MIL-PRF-55310

行业分类与别名

封装/外壳 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Inadequate sealing process control->Moisture ingress leading to frequency drift and eventual oscillator failure->Implement hermeticity testing (fine/ gross leak tests), use proper sealing materials, maintain controlled manufacturing environment
Coefficient of thermal expansion (CTE) mismatch between materials->Package cracking or delamination during temperature cycling->Select materials with compatible CTE, implement stress relief designs, use compliant adhesives and sealants
Insufficient EMI shielding design->Electromagnetic interference affecting nearby circuits or failing regulatory compliance->Implement proper grounding, use conductive coatings or metal shielding, optimize package geometry for EMI containment

工业生态与工程逻辑

0
Hermetic seal failure leading to moisture ingress
1
Thermal stress causing package cracking
2
EMI radiation exceeding regulatory limits
3
Mechanical vibration affecting frequency stability
4
Solder joint failure due to thermal cycling

合规与检测

tolerance
±10ppm to ±50ppm frequency stability, ±3% to ±10% frequency accuracy
test method
Environmental stress screening (ESS), thermal cycling (-55°C to +125°C), vibration testing (10-2000Hz), hermeticity testing (helium leak detection), EMI/EMC testing per FCC/CE standards

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the difference between hermetic and non-hermetic crystal oscillator packages?

Hermetic packages provide complete sealing against moisture and gases using metal, ceramic, or glass materials, offering superior long-term stability and reliability. Non-hermetic packages use plastic materials with lower cost but reduced protection against environmental factors.

How does the package material affect crystal oscillator performance?

Package materials significantly impact thermal characteristics, mechanical stability, and EMI shielding. Ceramic packages offer excellent thermal conductivity and stability, metal packages provide superior EMI shielding, while plastic packages offer cost advantages with adequate performance for many commercial applications.

What are the key considerations when selecting a crystal oscillator package?

Key considerations include: operating environment (temperature, humidity), required frequency stability, EMI requirements, mounting method (SMD vs through-hole), space constraints, thermal management needs, and cost targets for the specific application.

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CNFX Industrial Component Index · 计算机、电子和光学产品制造

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CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

初步技术归类
本页用于结构化准备研究、RFQ 和供应商评估,不替代买方自己的供应商资质审查、标准核验和技术批准。

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说明目标数量、应用场景、交期和关键技术要求,用于准备 RFQ 或供应商评估。

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