行业组件数据 · 2026

晶闸管/双向晶闸管封装外壳

Protective housing for thyristor/triac semiconductor devices that provides electrical insulation, thermal management, and mechanical protection.

技术定义与适配语境
典型 晶闸管/双向晶闸管封装外壳 会按材料、尺寸公差、适配关系和失效风险在 电气设备制造 中评估。

A specialized enclosure designed specifically for thyristor and triac semiconductor devices, serving as the primary protective structure that isolates the semiconductor die from environmental factors while facilitating electrical connections, heat dissipation, and mechanical mounting. The package/case ensures proper electrical insulation between the semiconductor and external circuits, manages thermal energy generated during operation through heat sinks or thermal interfaces, and provides structural integrity for handling and installation in various industrial applications.

组件规格

定义
A specialized enclosure designed specifically for thyristor and triac semiconductor devices, serving as the primary protective structure that isolates the semiconductor die from environmental factors while facilitating electrical connections, heat dissipation, and mechanical mounting. The package/case ensures proper electrical insulation between the semiconductor and external circuits, manages thermal energy generated during operation through heat sinks or thermal interfaces, and provides structural integrity for handling and installation in various industrial applications.
工作原理
The package/case functions as a multi-layer protective system: the inner cavity houses the semiconductor die with bonding wires connecting to external leads; insulating materials prevent electrical leakage; thermal conductive materials transfer heat from the die to external heat sinks; and the external structure provides mechanical mounting points and environmental sealing. During operation, it maintains electrical isolation between high-voltage terminals while efficiently conducting heat away from the semiconductor junction to prevent thermal runaway.
材料
Typically composed of: ceramic (alumina or aluminum nitride) for high-voltage insulation and thermal conductivitycopper or copper alloys for lead frames and thermal basessilicone gel or epoxy for internal encapsulationand plastic (PPSPBTor epoxy molding compound) for external housing. High-power versions may include direct copper bonding (DCB) substrates and silver-filled die attach materials.
Package Type
TO-220, TO-247, TO-3P, SOT-223, D2PAK
Lead Material
Copper alloy with tin plating
Mounting Type
Through-hole or surface mount
Current Rating
10A to 100A
Voltage Rating
600V to 1600V
Isolation Voltage
2500V to 4000V
Thermal Resistance
0.5 to 2.5 °C/W
Operating Temperature
-40°C to 150°C
标准
IEC 60747JEDEC MS-012ISO 9001UL 94

行业分类与别名

晶闸管/双向晶闸管封装外壳 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

Insufficient thermal interface material->Overheating and thermal runaway->Use proper thermal grease/pads and ensure adequate mounting pressure
Mechanical stress during installation->Cracked package or broken leads->Follow torque specifications and avoid bending leads after formation
Environmental contamination->Corrosion and electrical leakage->Use conformal coating in harsh environments and proper sealing

工业生态与工程逻辑

0
Thermal overstress leading to device failure
1
Electrical insulation breakdown
2
Mechanical cracking under thermal cycling
3
Corrosion of external leads
4
Improper mounting causing thermal interface issues

合规与检测

tolerance
Lead position tolerance ±0.2mm, package dimensions ±0.1mm
test method
Visual inspection per IPC-A-610, thermal cycling test per JESD22-A104, high-potential test per IEC 60112

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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 thyristor and triac packages?

Thyristor packages typically have three terminals (anode, cathode, gate) while triac packages have three terminals (MT1, MT2, gate) but both use similar package styles. The main difference is in internal construction and terminal arrangement rather than external package design.

Can different package types be interchangeable?

No, package types are not directly interchangeable due to differences in pin configuration, mounting requirements, and thermal characteristics. However, devices with the same package type (e.g., TO-220) from different manufacturers are generally interchangeable if electrical specifications match.

How important is thermal resistance in package selection?

Critical. Lower thermal resistance allows better heat dissipation, enabling higher current ratings and improved reliability. Proper heat sinking must be considered based on the package's thermal characteristics.

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CNFX Industrial Component Index · 电气设备制造

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