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Coaxial catalogue

Coaxial catalogue
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Coaxial catalogue

Product catalog summary
Introduction
LEMO has developed the 00.250 series of miniature coaxial connectors, integral to the NIM-CAMAC CD/N 549 standard, used in telecommunications, medical equipment, and space research for their high performance and compact design.
Connector Series Overview
The document covers two main series: the 00.250 (NIM-CAMAC) and the 01.250 (Minax) series. Both offer 50Ω coaxial connectors with a self-latching push-pull system for secure connections in limited spaces.
00.250 Series
Designed for high-density applications in nuclear physics and control systems, this series features a self-latching push-pull system, high packing density, lightweight and rugged construction, and models that are watertight and vacuumtight.
01.250 Series
Ideal for printed circuit board connections, this series offers self-latching intermating capability and a wide range of housing configurations.
Technical Characteristics
Specifications include materials for outer shell and insulator, electrical contact types, cable fixing methods, and technical tables for VSWR.
Compliance and Safety
LEMO connectors are UL recognized, RoHS compliant, and CE marked, ensuring safety and environmental compliance.
Selection and Part Numbering
A two-step process for selecting connectors based on application needs and cable compatibility is outlined, with a detailed part numbering system.
Conclusion
LEMO offers over 75,000 connector configurations, providing reliable and secure connections with their push-pull self-latching system.
Specifications
The 01 series connectors are small 50 Ω coax connectors with self-latching intermating capability, suitable for printed circuit boards, made from materials like brass, PEEK, and bronze.
Procedures
Instructions for terminating connectors include crimping and soldering techniques, specifying the use of a LEMO crimp tool and providing stripping dimensions for cable assembly.
Standards and Testing
Connectors are tested according to IEC standards for mechanical and electrical characteristics, with VSWR specified to be ≤ 1.25 for the operating frequency range.
Materials and Treatment
Materials include brass, PEEK, and bronze, with surface treatments like nickel, chrome, and gold plating for durability and environmental resistance.
Recommendations
For optimal performance, specific tooling for crimping and assembly is recommended, along with adherence to specified stripping dimensions and material selection based on the application environment.
Key Data from Tables and Charts
Tables detail part numbers, dimensions, and material specifications, with a chart for VSWR values across frequencies, emphasizing low VSWR for efficient signal transmission.
Crimp Contacts
The square form crimp method is used, emphasizing controlled compression for symmetrical deformation, quick assembly, and suitability for high temperatures.
Print and Solder Contacts
Print contacts are available for flexible or rigid circuits, and solder contacts have a machined conductor bucket for lead-free solder compatibility.
Materials and Surface Treatments
Materials like brass and bronze are used, with surface treatments adhering to standards like SAE AMS QQ N 290 and ISO 27874.
Contact Resistance
Resistance is measured in relation to mating cycles, with values provided for 1000, 3000, and 5000 cycles.
VSWR and Cable Fixing
Technical tables on VSWR effects on transmitted power are included, with cable fixing methods described as either a collet system or hexagonal crimping.
Disclaimers and Safety Notices
LEMO disclaims liability for damages and emphasizes the importance of following safety regulations and using trained personnel during installation.
Product Range and Contact Information
LEMO offers a wide range of connectors, including unipole, multipole, coaxial, and fiber optic types, with contact information for headquarters and subsidiaries worldwide.
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Catalog excerpts

Coaxial catalogue-1

00 NIM-CAMAC & 01 COAXIAL CONNECTORS

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Coaxial catalogue-3

LEMO coaxial 00 and 01 Series ( 50 Ω ) Fundamental research in particle physics as practised within CERN and other nuclear research establishments requires more and more complex equipment of high performance in order to achieve the objectives. The needs of such research contribute to the development of leading products for the whole of industry. For many years LEMO has participated in this evolution. This has resulted in a range of miniature coaxial connectors (50 Ω) with a push-pull self-latching system, the LEMO 00.250 series. These connectors now form the basis of the NIM-CAMAC CD/N 549 standard....

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Coaxial catalogue-4

Precision modular connectors to suit your application Since its creation in Switzerland in 1946 the LEMO Group has been recognized as a global leader of circular Push-Pull connectors and connector solutions. Today LEMO and its affiliated companies, REDEL and COELVER, are active in more than 80 countries with the help of over 40 subsidiaries and distributors. Over 75’000 connectors The modular design of the LEMO range provides over 75’000 connectors from miniature ø 3 mm to ø 50 mm, capable of handling cable diameters up to 30 mm and for up to 106 contacts. This vast portfolio enables you to select...

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Coaxial catalogue-5

2 steps to select the right connector ● Step 1: Select connector series Select the appropriate LEMO connector series according to the standard, the cable, according to the application or the mated connector already on your equipment. Part number coding The NIM-CAMAC 00 .250 series The 00 series is coaxial (50 Ω ). This connectors family was conceived for all applications where a high density of connectors is necessary, especially for patch panels. Because of LEMO’s special self-latching system, it is possible to connect them with a simple axial push-pull thereby reducing the space needed to mount...

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Coaxial catalogue-6

Step 2 : Complete the part number Complete the part numbering by choosing the model depending on your cable and the application. Part number coding Verify the fitting to your cable and cable wire conductor Recommended coaxial cables Electrical and general properties MIL-C-17 RG 58 C/U RG 142 B/U RG 174 /U RG 174 A/U RG 178 B/U RG 179 B/U RG 187 A/U RG 188 A/U RG 195 A/U RG 196 A/U RG 316 /U Huber+Suhner Huber+Suhner Storm LEMO Cable group LEMO Part-No Operating Temperature °C voltage Mechanical properties black black brown brown white white white white brown CuAg CuAg CuSt CuSt CuStAg CuStAg...

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Coaxial catalogue-8

00 Series (NIM-CAMAC CD/N 549) The 00 series is a range of 50 Ω coaxial connectors. They are suitable for a wide variety of applications particularly in measurement, control system and nuclear physics, having formed the basis for the NIM-CAMAC CD/N 549 standard. LEMO 00 connectors offer customers many benefits including: – Self-latching push-pull system – Aesthetically pleasing appearance – Small size – Low weight – Reliable performances – Wide choice to suit application – High packing density – Rugged construction – Ease of use Metal housing models (page 8) Fixed plugs Straight plugs Fixed sockets...

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Coaxial catalogue-9

Part Numbering System Plug Free socket C 29 Variant: (page 30) Cable ø Collet type: C = with cable collet clamping E = with cable crimping K, D = with oversize cable collet Fixed socket Contact type : A = male solder C = male crimp L = female solder M = female crimp Fixed coupler Contact type : A = male solder D = male print L = female solder N = female print Contact type : A = male-female E = male-male-female 3) F = female-female-male L = female-male M = female-female Insert configuration : 250 = coaxial ( 50 Ω ) Housing : N = brass nickel-plated 4) C = brass chrome-plated 4) 1) D = brass gold-plated...

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Coaxial catalogue-10

Metal housing models Technical Characteristics Mechanical and climatical Characteristics Cable pull off force 1) Connector pull off force Endurance Impedance Operating voltage (50 Hz) Test voltage (50 Hz) Rated current Contact resistance Shell electrical continuity Insulating resistance VSWR Shielding efficiency Operating temperature Note: 1) depending on cable design Voltage Standing Wave Ratio The VSWR (Voltage Standing Wave Ratio) is the value representing the power reflected in a connection. The VSWR varies with frequency, in most cases, the working frequency range is where VSWR is ≤1.25....

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Coaxial catalogue-11

FFA Straight plug with oversize cable collet Cable group Sheath Ø mini maxi 3.0 3.3 Cable assembly, solder contact (page 39) FFA Straight plug with cable collet and nut for fitting a bend relief Part number Cable group Cable assembly, solder contact (page 39) Note: the bend relief must be ordered separately (see page 30). FFC Straight plug with flats on latch sleeve and cable collet Cable group Sheath Ø mini maxi 1.7 2.3 2.8 Cable assembly, solder contact (page 39) FFC Straight plug with flats on latch sleeve and oversize cable collet Cable group Sheath Ø mini maxi 3.1 4.1 5.1 Cable assembly,...

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Coaxial catalogue-12

FFY Straight plug, large shell with cable collet Cable group Cable assembly, solder contact (page 39) Straight plug with front sealing ring, cable collet and nut for fitting a bend relief (IP 54 protection index when mated) Part number Cable group Sheath Ø mini maxi Sheath Ø mini maxi 1.7 2.3 2.8 Cable assembly, solder contact (page 39) Note: the bend relief must be ordered separately (see page 30). Straight plug, non-latching, with cable collet Part number Cable group Sheath Ø mini maxi 1.7 2.3 2.8 Cable assembly, solder contact (page 39) Straight plug for cable crimping Part number Cable Cond....

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Coaxial catalogue-13

Straight plug for cable crimping with improved screen efficiency 1) Part number Cable Cond. group Ø maxi Cable assembly, solder contact (page 41) Cable Cond. Ø Dielec. Sheath group mini maxi Ø maxi Ø maxi Cable assembly, crimp contact (page 40) Note: 1) Screen efficiency >100dB at 1 GHz, see page 8. FLC Elbow plug (90°) with cable collet 19.5 11.5 Part number Cable group Sheath Ø mini maxi 1.7 2.3 2.8 Cable assembly, solder contact (page 42) FLC Elbow plug (90°) with oversize cable collet Part number Cable group Sheath Ø mini maxi 3.1 4.1 5.1 Cable assembly, solder contact (page 42) FLS Elbow...

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