The LCA® Glass Sealed Filter Series focuses on high reliability, adopting precision glass-sealing technology to achieve high hermeticity. This product features a capacitance of 5000pF, a capacitance tolerance of -20%+50%, a rated voltage of 100VDC, a withstanding voltage of 300VDC, a rated current of 7A, and a dielectric of X7R. Even in extremely harsh environments, it can consistently ensure unparalleled signal integrity.
Hermetically Sealed Filters are premium EMI/RFI suppression components engineered for electronic systems requiring exceptional environmental protection, long-term reliability, and stable electrical performance. Utilizing advanced glass-to-metal sealing technology, these filters effectively prevent moisture ingress and environmental contamination while maintaining consistent filtering characteristics throughout their operational lifetime.
Compared with conventional epoxy-sealed filters, hermetically sealed designs provide significantly higher resistance to humidity, thermal cycling, vibration, pressure variations, and corrosive environments. Selected models also support gold wire bonding, making them suitable for hybrid circuits, microwave assemblies, aerospace electronics, and semiconductor packaging applications.
Model HB4033-039 features a 5000 pF capacitance, 100 VDC rated voltage, and C-type circuit configuration. It provides an excellent balance between compact dimensions, filtering effectiveness, and long-term operational stability.
Selected models are additionally available with gold wire bondable terminals, allowing direct integration into hybrid circuits, microwave assemblies, and advanced electronic packaging. Customized bonding structures can also be developed to satisfy specific application requirements.
✔ Excellent EMI/RFI Suppression
✔ Stable Long-Term Electrical Performance
✔ Gold Wire Bondable Configuration
✔ Protects sensitive electronics from conducted EMI
✔ Ensures long-term reliability in harsh environments
✔ Improves system stability and signal integrity
✔ Extends product service life under demanding operating conditions
Glass-to-metal sealing creates a permanent, leak-tight barrier between internal electrical components and the external environment. Unlike conventional epoxy sealing, hermetic construction offers significantly enhanced protection against moisture, dust, corrosive gases, pressure fluctuations, and thermal stress.
This sealing technology enables stable electrical performance over extended service periods while minimizing the risk of insulation degradation caused by environmental exposure.
Aerospace & Avionics
Hermetically sealed filters are extensively used in avionics, flight control systems, navigation equipment, satellite communication payloads, and airborne electronic modules. Their glass-to-metal sealing construction withstands rapid pressure changes, temperature cycling, and harsh environmental conditions while maintaining stable EMI suppression throughout long service life.
Medical Equipment
High-end medical imaging systems, MRI equipment, CT scanners, patient monitoring devices, and laboratory instruments require extremely stable electrical performance. Hermetic filters help minimize conducted noise, improve signal integrity, and enhance the operational reliability of sensitive medical electronics operating continuously over extended periods.
RF & Microwave Systems
These filters are widely applied in RF amplifiers, microwave communication equipment, satellite ground stations, precision signal processing modules, and high-frequency electronic systems. Their excellent EMI suppression and low parasitic characteristics help preserve signal quality while improving electromagnetic compatibility.
Industrial High-Reliability Electronics
Suitable for industrial automation, energy systems, railway electronics, harsh-environment control equipment, and critical infrastructure, hermetically sealed filters provide dependable EMI protection where continuous operation and environmental durability are essential for system reliability.
Selecting the right supplier is just as important as selecting the right component. LCA combines manufacturing expertise, engineering support, and flexible customization capabilities to help customers achieve reliable EMI filtering solutions for demanding electronic applications.
LCA Hermetically Sealed Filters are manufactured in accordance with international quality and environmental standards. Compliance documentation, material declarations, and technical specifications are available upon request.
✔ RoHS
✔ ISO9001
✔ IATF16949
Every electronic system has unique electrical and mechanical requirements. In addition to our standard hermetically sealed filter product range, LCA offers comprehensive customization services to support specialized applications across RF, microwave, aerospace, medical, and industrial markets.
Selected hermetically sealed filters are available with gold wire bondable terminals, allowing direct integration into hybrid circuits, microwave assemblies, and advanced electronic packaging.
Customized bonding structures and bonding pad designs are also available according to customer requirements.
LCA manufactures high-performance EMI/RFI filtering components using precision machining and carefully selected materials. Continuous process control and production optimization ensure consistent quality while supporting both standard products and customized OEM solutions.
Glass-to-metal sealing provides a permanent hermetic barrier between the internal filtering elements and the external environment. Compared with epoxy sealing, it offers significantly higher resistance to moisture ingress, thermal cycling, vibration, pressure variations, and corrosive environments. This technology helps maintain insulation resistance, electrical stability, and reliable filtering performance throughout the product’s service life, making it ideal for mission-critical electronic systems.
Both filter types provide effective EMI suppression, but they are designed for different operating environments. Epoxy-sealed filters are suitable for general industrial and commercial applications where cost-effectiveness and reliable performance are important. Hermetically sealed filters are specifically designed for aerospace, military, medical, and other high-reliability applications where long-term environmental protection, superior sealing performance, and maximum reliability are essential.
Hermetically sealed filters are commonly used in aerospace electronics, military communication systems, radar equipment, satellite electronics, medical imaging devices, industrial control systems operating in harsh environments, RF and microwave equipment, and other mission-critical electronic systems where environmental sealing and long-term reliability are required.
Hermetically sealed filters isolate the internal filtering components from environmental influences such as moisture, dust, corrosive gases, and pressure fluctuations. By maintaining stable electrical characteristics over extended operating periods, they help reduce the risk of insulation degradation, electrical failure, and EMI-related performance issues, ultimately improving the overall reliability of critical electronic systems.
Yes. Selected Hermetically Sealed Filters can be supplied with gold wire bondable terminals for integration into hybrid circuits, microwave modules, aerospace electronics, and other advanced electronic assemblies.
Customized bonding configurations are also available upon request.
The operating temperature range varies by model and design requirements. Specific values can be found in the product datasheet or provided by LCA engineering support.
Yes. LCA provides comprehensive customization services for hermetically sealed filters, including capacitance values, voltage ratings, circuit configurations, housing dimensions, mounting styles, terminal configurations, plating finishes, and gold wire bonding options. Our engineering team works closely with customers to develop solutions that meet specific electrical and mechanical requirements.
LCA is customer demand-centric. With professional technical capabilities, rigorous implementation processes, and considerate full-cycle services, it creates exclusive solutions for customers with diverse needs!
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