中小型企业连接器
卡入式宽带射频互连器件专为紧凑型高密度系统集成而设计
概述
在 Amphenol RF，我们的 SMB 连接器系列为寻求紧凑型快速连接射频接口的工程师和买家提供了成熟的多功能解决方案。SMB 系列支持宽带性能、50 Ω（和专用 75 Ω）阻抗选项以及广泛的电缆和 PCB 兼容性，使其成为从仪器仪表到无线基础设施等各种应用的理想之选。
SMB 系列采用卡入式耦合机制，符合 MIL-C-39012 接口标准和 MIL-STD-348 设计规范，在节省空间的封装与可靠的电气性能之间实现了平衡。
特点和优势
- 卡入式耦合机制缩短了安装时间，可在现场或装配环境中快速接合/拆卸。
- 宽带能力：标准设计支持直流至 ~4 GHz，扩展型额定频率可达 ~10 GHz。
- 提供 50 Ω 和 75 Ω 阻抗变体，支持标准射频系统和视频/广播应用。
- 紧凑的超小型外形尺寸，适合空间受限的板对电缆或电缆对板架构。
- 多种电镀和材料选择（镍、金、锡铅）可满足成本、腐蚀或可焊性要求。
- 低插入力 PCB 滑入式插头/插孔变体可实现密集的板对板配置，并将配接应力降至最低。
主要技术细节
- 阻抗：50 Ω 标准；75 Ω 变体可用于广播/视频中心系统。
- 频率范围：在标准 SMB 设计中，频率范围为 DC 至 ~4 GHz；在扩展范围版本中，频率范围可达 ~10 GHz（取决于连接器配置和电缆）。
- 配接周期：SMB 系列的典型配接周期最少为 500 次。
- 温度范围：典型值为 -65 °C 至 +165 °C；性能可能因配置和电缆类型而异。
- 特殊功能：卡入式耦合、50 Ω/75 Ω 选项、多种电镀选项；请注意，Amphenol RF 的标准 SMB 系列不是密封的，该系列未列出 IP 级密封变体。
应用
SMB 连接器系列适用于多种系统用途：
- 需要紧凑型快速连接射频接口的无线基础设施和基站模块。
- 需要频繁配接/拆卸操作以及电路板安装或电缆安装集成的仪器和测试设备。
- 利用 75 Ω SMB 变体实现阻抗匹配信号路径的广播和视频链路系统。
- 需要空间效率高、高密度射频互连解决方案的 GPS、遥测和数据通信平台。
- 需要成熟供应链、全球可用性和可重复射频性能的系统中的电缆到板或板到板互连。
了解我们完整的 SMB 标准产品连接器阵容。如果您需要定制端接、替代材料、特殊电镀或标准产品之外的定制变体，请联系我们的工程团队，以获得定制解决方案。
Specifications
SMB Connectors
Electrical
| Impedance | 50 Ohm |
| Frequency Range | DC - 4 GHz (DC - 10 GHz on Extended Range Designs) |
| Voltage Rating | 335 Volts RMS Continuous |
| Dielectric Withstanding Voltage | 1000 VRMS Max |
| VSWR (Return Loss) |
|
|
RG-178/RG-196 Group
|
|
|
Straight Connectors
|
1.30 + .04 f (GHz) |
|
Right Angle Connectors
|
1.45 + .06 f (GHz) |
|
RG-174/RG-316/RG-188 Group
|
|
|
Straight Connectors
|
1.25 + .04 f (GHz) |
|
Right Angle Connectors
|
1.35 + .04 f (GHz) |
| Insulation Resistance | 1000 MΩ Min |
| Center Contact Resistance | 6 mΩ Max |
| Outer Contact Resistance | 1 mΩ Max |
| RF Leakage | -120 dB Max (DC - 3 GHz) |
| Insertion Loss |
|
|
Straight Connectors
|
.30 dB @ 1.5 GHz Max |
|
Right Angle Connectors
|
.60 dB @ 1.5 GHz Max |
| Power Handling | 95 W @ 1 GHz @ 25ºC |
Environmental
| Temperature Range | −65°C to +165°C |
| Thermal Shock | MIL-STD-202 Method 107 (Test Condition B) except high temp test @ +200°C |
| Corrosion | MIL-STD-202 Method 101 (Test Condition B) 5% Salt Solution |
| Vibration | MIL-STD-202 Method 204, snap on (Test Condition B) (15G's) |
| Mechanical Shock | MIL-STD-202 Method 213, snap on (Test Condition B) 75 G's @ 6 milliseconds 1/2 sine |
| Moisture Resistance | MIL-STD-202 Method 106 |
| Altitude | MIL-STD-202 Method 105 (Test Condition C) |
Mechanical
| Mating Cycles | 500 Min |
| Coupling Mechanism | Snap-On |
| Interface Specification | MIL-STD-348 |
| Engagement Force | 14 lbs (62 N) Max |
| Disengagement Force | 2 lbs (8.9 N) Max |
Note: These characteristics are typical and may not apply to all connectors.
Connector configurations may affect performance.
Interface Dimensions
Plug
Jack
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