L29 Connectors
L29 Connectors
Features
Large screw-coupling structure for stable and secure connection
50 ohm impedance for standard RF system compatibility
DC to 7.5 GHz frequency range for broad RF and microwave use.2700V(rms) working voltage and 4000V(rms) withstanding voltage
Straight VSWR ≤1.25 and right-angle VSWR ≤1.40
Center contact resistance ≤0.001 Ω and outer contact resistance ≤0.0005 Ω
Insulation resistance ≥5000 MΩ for dependable electrical isolation
Operating temperature from -65°C to +155°C
Durability up to 500 mating cycles
Mostly waterproof construction for outdoor installation
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L29 (7/16) RF Coaxial Connectors
The L29 (7/16) series delivers where reliability cannot be compromised. Fully compliant with IEC 169-4, CECC 22230, and DIN 47223, these large-format RF coaxial connectors are the trusted choice for mobile base stations, microwave transmission links, and broadcast antenna systems worldwide.
Whether you need a cable-mount plug, a panel-mount flange, or a right-angle adapter, the L29 series covers every installation scenario — with a weatherproof, low-loss design built to last in demanding outdoor environments.
Why Choose L29 Connectors
-Screw-locking coupling
The threaded interface resists vibration and self-loosening, maintaining consistent contact under mechanical stress and thermal cycling.
-Weatherproof construction
Most L29 models feature sealed housings rated for outdoor deployment, protecting signal integrity in rain, humidity, and temperature extremes.
-High voltage rating
Designed to handle the high-energy RF signals required by modern mobile base stations and microwave transmission equipment.
-Low insertion loss
Precision-machined contacts and dielectrics minimize signal attenuation, ensuring efficient power transfer from source to antenna.
-Broad cable compatibility
The L29 series supports SYV, LDF5, FSJ, SFCG, and other mainstream coaxial cable families, covering virtually every feeder scenario.
-Standards-compliant design
Manufactured to IEC 169-4, CECC 22230, and DIN 47223 for guaranteed dimensional and electrical interoperability.
L29 Connector Specifications
| Key Performance | Value |
|---|---|
| Temperature Range | -65°C to +155°C |
| Characteristic Impedance | 50 Ω |
| Frequency Range | DC to 7.5 GHz |
| Voltage Rating | 2700 V (RMS) |
| Insulation Resistance | ≥5000 MΩ |
| Withstanding Voltage | 4000 V (RMS) |
| VSWR (Straight) | ≤1.25 |
| VSWR (Right Angle) | ≤1.40 |
| Contact Resistance (Center Conductor) | ≤0.001 Ω |
| Contact Resistance (Outer Conductor) | ≤0.0005 Ω |
| Durability | 500 Mating Cycles |
Interface Mating Dimensions
Our L29 Connector Series
The L29 lineup is organized into five families by mounting style and cable type.
N-Type Adapters
L29-to-N Adapter Connectors
These compact adapters convert between the L29 (7/16) and standard N-type interfaces — useful when integrating L29-terminated equipment with N-type cable assemblies or test instruments.
| Model | Interface | Length | Thread |
|---|---|---|---|
| L29/N-50KJ | L29 Female → N Male | 40.4 mm | M29×1.5 |
| L29/N-50JK | L29 Male → N Female | 32.5 mm | 5/8-24UNEF-2A |
| L29/N-50JJ | L29 Male → N Male | 46.0 mm | — |
| L29/N-50KK | L29 Female → N Female | 39.5 mm | 5/8-24UNEF-2A |
Cable Mount Connectors
L29 Cable-Mount RF Connectors
Designed to terminate directly onto coaxial feeders, these plugs and jacks give you a reliable screw-locking L29 interface on your cable run. Models are available for all major feeder cable families.
| Model | Compatible Cable | Length | OD |
|---|---|---|---|
| L29-J7 | SYV-50-7-1 | 46.5 mm | φ34.6 mm |
| L29-J9 | SYV-50-9 | 46.5 mm | φ34.0 mm |
| L29-J38 / J38G | SFCG-50-23 | 75.0 mm | φ34.0 mm |
| L29-50JFSG | FSJ4-50B | 54.0 mm | φ34.0 mm |
| L29-J7/8 | LDF5 | 65.5 mm | φ34.6 mm |
LDF5 Feeder Connectors
L29 Connectors for LDF5 Coaxial Cable
The L29-J7/8 and L29-KLDF5 are purpose-built for Andrew-type LDF5 superflexible feeder cable. The inner conductor connection is plug-in style — no soldering required — simplifying field installation and reducing the risk of assembly error.
| Model | Cable | Length | Notes |
|---|---|---|---|
| L29-J7/8 | LDF5 | 65.5 mm | Plug-in inner conductor |
| L29-KLDF5 | LDF5 | 75.0 mm | Plug-in inner conductor |
Flange Mount Connectors
L29 Panel-Mount (Flange) Connectors
Panel-mount models are ideal for equipment enclosures, bulkhead installations, and RF distribution frames. Each model includes a precisely drilled bolt pattern for secure, repeatable mounting.
| Model | Cable | Total Length | Flange / Hole Pattern |
|---|---|---|---|
| L29-50KFD1 | — | 40 mm | 4×φ5.5 mm, 40 mm PCD |
| L29-50KFDG | — | 36.5 mm | 4×φ3.7 mm, 24.8 mm PCD |
| L29-KFD2 | — | 30 mm | 4×φ4.2 mm, 24.8 mm PCD |
| L29-KF9 | SYV-50-9 | 46 mm | 4×φ4.5 mm, 24.8 mm PCD |
| L29-KFSJ1 | FSJ1-50A | 39 mm | 4×φ3.3 mm, 24.8 mm PCD |
| L29-KFSJ2 | FSJ2-50 | 38.3 mm | 4×φ3.7 mm, 32×32 mm flange |
Right-Angle Connectors
L29 Right-Angle RF Connectors
Where installation clearance is tight or a 90° cable exit is required, right-angle L29 connectors eliminate the need for wide bending radii and reduce mechanical stress on the cable.
| Model | Cable | Length | Notes |
|---|---|---|---|
| ZL29-J38 | SFCG-50-23 | 78 mm | OD φ45 mm, right-angle body |
| L29-KWFSJ1 | FSJ1-50A | 43.8 mm | Right-angle, flange mount |
Where L29 (7/16) Connectors Are Used
Mobile Base Stations (4G / 5G)
L29 connectors serve as the primary RF interface between base station radios and antenna feeder cables. Their high current-handling capacity and weatherproofing make them the default choice for tower-top installations.
Microwave Point-to-Point Links
The low insertion loss and stable impedance of L29 connectors support the tight link budgets required by point-to-point microwave backhaul and relay systems.
Broadcast Transmission Systems
High-power FM, TV, and DAB transmitter systems rely on L29’s screw-coupling reliability to maintain continuous broadcast uptime in high-RF-power environments.
Outdoor Distributed Antenna Systems (DAS)
Outdoor DAS headends and remote units require connectors that can withstand years of UV exposure, moisture ingress, and thermal cycling — all conditions the L29 series is specifically designed for.
Military and Mission-Critical RF
Compliance with international standards and robust construction make L29 connectors suitable for defense communications, emergency networks, and other mission-critical RF infrastructure.
Ready to Secure Your RF Infrastructure?
Don’t let signal attenuation or environmental wear compromise your network’s uptime. Whether you are scaling up 5G macro stations, deploying microwave backhauls, or upgrading broadcast equipment, our premium L29 (7/16) series ensures your connections remain rock-solid under any condition.
Contact our engineering team today to request a quote, request product samples, or discuss custom cable assembly configurations tailored to your project specs. Let’s build a connection that lasts.
FAQ
1. What is an L29 connector?
The L29, also known as the 7/16 DIN connector, is a large-format screw-locking RF coaxial connector standardized under IEC 169-4. It is widely used in cellular base stations, microwave links, and broadcast antenna systems due to its high power handling, low loss, and weatherproof design.
2. What is the difference between the L29 and N-type connector?
The L29 (7/16 DIN) is physically larger than the N-type and offers higher power handling and better weatherproofing. N-type connectors are more common in lower-power test and measurement applications, while L29 is preferred for outdoor infrastructure and high-power transmit paths.
3. Are L29 connectors weatherproof?
Most models in the L29 series feature sealed housings designed for outdoor installation. They are widely deployed in outdoor environments including tower tops, rooftop antenna mounts, and outdoor cabinet installations.
4. Which cable types are compatible with L29 connectors?
The L29 series supports a wide range of coaxial cables including SYV-50-7-1, SYV-50-9, SFCG-50-23, FSJ1-50A, FSJ2-50, FSJ4-50B, and LDF5 superflexible feeder cable. Each model is matched to a specific cable family to ensure correct impedance and mechanical fit.
5. What standards do L29 connectors comply with?
All L29 series connectors are manufactured in compliance with IEC 169-4, CECC 22230, and DIN 47223, ensuring interoperability with any standards-compliant L29 mating connector.
6. Can L29 connectors be used for 5G base station deployments?
Yes. The high power handling, low insertion loss, and weatherproof construction of L29 (7/16 DIN) connectors make them a standard choice in 5G macro base station antenna feeder systems.
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Strict Production Process
Engineers develop optimized electronic circuits and structural designs based on real application needs.
High-quality components and materials are carefully selected from trusted suppliers to ensure long-term reliability.
Automated SMT and precision soldering technologies are used to build stable and high-performance circuit boards.
Sensor elements or connector terminals are assembled with the PCB and housing to ensure accurate operation and strong mechanical stability.
Each product undergoes strict calibration and functional testing to guarantee accuracy and stable performance.
Every unit is carefully inspected, labeled, and securely packaged to ensure it arrives safely and performs reliably for your applications.
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