SMP RF Connectors Guide: Types, Structure, and Uses
What are SMP RF Connectors?
The SMP type RF connector is a high-performance miniature connector that supports high frequencies up to 40 GHz. Its compact size allows high-density mounting in small spaces, suitable for wiring inside equipment as well as connections between sub-assemblies and between devices. Unlike standard connectors, the jack is attached to the cable and the plug is mounted to the device. The connection method is push-on.
SMP RF Connectors by Type
Coaxial Cables with SMP RF Connectors
Unlike standard connectors, the jack is attached to the cable and the plug is mounted to the device. In addition to SMP on both ends, we can also manufacture cable assemblies with a different type of connector on one end. Please contact us for details. You can specify the length and quantity, and we will manufacture to order. Delivery time depends on the specified length and quantity.
Custom-Order Semi-flexible Cables
We offer a range of semi-flexible cables with SMP connectors, which can be combined with other connectors including SMA connectors. Please check the product page for specifications..
0.085-Inch SF-021 Semi-Flexible RF Cables
Semi-flexible RF cable equivalent to 0.085 inch. Choose SF-021 (No Jacket) or SF-030 (With Jacket) based on sheath presence.
0.085-Inch SF-030 Semi-Flexible RF Cables
Semi-flexible RF cable equivalent to 0.085 inch. Choose SF-021 (No Jacket) or SF-030 (With Jacket) based on sheath presence.
0.047-Inch SF-050 Semi-Flexible RF Cables
Semi-flexible RF cable equivalent to 0.047 inch. Choose SF-050 (No Jacket) or SF-051 (With Jacket) based on sheath presence.
0.047-Inch SF-051 Semi-Flexible RF Cables
Semi-flexible RF cable equivalent to 0.047 inches. Choose SF-050 (No Jacket) or SF-051 (With Jacket) based on sheath presence.
Custom-Order Semi-rigid Cables
We offer semi-rigid cables with SMP connectors, compatible with other connectors including SMA. Check specifications on the product page.
0.085-Inch SR-002 Semi-rigid RF Cables
Semi-rigid RF cable equivalent to 0.085 inch. Has the widest range of compatible connectors and supports up to 50 GHz.
0.047-Inch SR-003 Semi-rigid RF Cables
Semi-rigid RF cable equivalent to 0.047 inches with a wide variety of compatible connectors.
0.034-Inch SR-004 Semi-rigid RF Cables
Semi-rigid RF cable equivalent to 0.034 inch. The thinnest cable in the lineup.
SMP RF Connector Features
High frequency
We offer a lineup of products suitable for high-frequency bands from direct current to 40 GHz.
Compatibility
They comply with IEC standards and are compatible with MIL standard products.
Compact Size
The compact connectors allow high-density mounting in small spaces, for internal wiring, connections between sub-assemblies, and between equipment.
SMP RF Connector Applications
Data transmission devices, radio base station equipment, microwave communication equipment, radar equipment, and more.
SMP RF Connector: Standards and Technical Specifications
Compatible Standards
Complies with international standard IEC 61169-44.
Nominal Impedance
Impedance rating is 50 Ω, indicating compatibility with most standard RF equipment.
Coupling Method (Connector Interface)
Connectors securely join using snap-on coupling for stable signal transmission.
Working Voltage (Rated Voltage)
Rated for standard operating voltage of up to 170 V alternating current.
Maximum Withstanding Voltage
Safely withstands up to 500 V alternating current for one minute without electrical breakdown.
Insulation Resistance
Minimum insulation resistance of 5,000 MΩ when tested with 500 V direct current, ensuring electrical safety.
Contact Resistance
Maximum contact resistance of 6.0 mΩ (center) and 3.0 mΩ (outer) when conducting direct current of 1 ampere, ensuring efficient connection.
Frequency Range
Suitable for signals within frequency range from direct current to 40,000 mΩ (40 Ghz).
Note: The figures provided are typical values. For further details, please contact us.
SMP Type RF Connector FAQ
QWhat do the abbreviations SB, LD, and FD mean for SMP connectors?
QWhat do the abbreviations SB, LD, and FD mean for SMP connectors?
What do the abbreviations SB, LD, and FD mean for SMP connectors?
These abbreviations indicate the connector's detent type, which determines the force required to mate and unmate the connection.
- SB (Smooth Bore): Provides the lowest retention force for easy mating and unmating.
- LD (Limited Detent): Provides a moderate retention force for a secure connection.
- FD (Full Detent): Provides the highest retention force for maximum connection security. Please note that this is not currently in our product lineup.
While the three types look similar, they can be distinguished by an external identification groove. A removal tool is recommended for safely disconnecting Full Detent and Limited Detent connectors.
QHow do SMP connectors attach?
QHow do SMP connectors attach?
SMP connectors use a quick and reliable push-on, blind-mate style. This design allows for simple and secure connections, typically between a PCB-mounted receptacle and a cable-mounted plug.
QWhat frequency range do SMP connectors support?
QWhat frequency range do SMP connectors support?
SMP connectors are designed for high-frequency applications, operating from DC to 40 GHz.
QWhy are SMP connectors a good choice for compact equipment?
QWhy are SMP connectors a good choice for compact equipment?
Their miniature, blind-mate design allows for high-density mounting and saves space, making them ideal for internal wiring and connections between subassemblies.
QWhat cable types are compatible with SMP connectors?
QWhat cable types are compatible with SMP connectors?
SMP connectors are compatible with a variety of coaxial cables, including 0.047-inch and 0.085-inch semi-rigid and semi-flexible types.
QCan SMP connectors be custom ordered?
QCan SMP connectors be custom ordered?
Yes, we offer custom cable assemblies. You can specify the length, quantity, and connector types, such as an SMP connector on one end and a different connector on the other.
QDo SMP connectors meet industry standards?
QDo SMP connectors meet industry standards?
Yes, our SMP connectors comply with IEC and MIL-SPEC standards, ensuring robust performance and reliability for commercial and military-grade applications.
QWhat are common applications for SMP connectors?
QWhat are common applications for SMP connectors?
SMP connectors are commonly used in high-frequency applications, including radio base stations, microwave communication systems, radar equipment, and other data transmission devices.
QWhat is the voltage rating for SMP connectors?
QWhat is the voltage rating for SMP connectors?
SMP connectors have a rated voltage of 170 V AC and a dielectric withstanding voltage of 500 V AC for one minute.
QWhat is the insulation resistance of SMP connectors?
QWhat is the insulation resistance of SMP connectors?
The insulation resistance is a minimum of 5,000 MΩ when measured at 500 V DC.
QWhat is the contact resistance for SMP connectors?
QWhat is the contact resistance for SMP connectors?
The maximum contact resistance is 6.0 mΩ for the center conductor and 3.0 mΩ for the outer conductor.
QWhat coupling mechanism do SMP connectors use?
QWhat coupling mechanism do SMP connectors use?
SMP connectors use a snap-on coupling mechanism to ensure secure and stable connections, particularly during high-frequency operation.
QHow can I order SMP RF connectors, and what support do you offer?
QHow can I order SMP RF connectors, and what support do you offer?
You can purchase our SMP RF connectors directly from our website or contact our sales team for assistance. We also provide comprehensive technical support—including datasheets, CAD models, and application notes—to help you select the ideal connector for your project.
Purchase Guide
Tyclon coaxial connectors and processed coaxial cable products can be purchased directly online using a variety of credit cards.
