Bel, through its Johnson brand, offers a comprehensive line of RF coaxial connectors and adapters designed for high-frequency transmission in demanding applications. These products are available in 50 and 75 Ohm versions, operating up to 67GHz, with millimeter wave classes extending to 110 GHz. Engineered for superior data transmission in networking, telecommunications, computing, military, aerospace, transportation, broadcasting, automotive, medical, and consumer electronics industries, Johnson connectors provide high-quality data, audio, and video performance. The product range includes various connector styles such as end launch, sparkplug, vertical, and low profile connectors, alongside same-series and between-series adapters and terminations, all manufactured with precision for consistent electrical performance and reliability.
| Product Series | Connector Type | Part Number | Material | Impedance | Max. Frequency | VSWR (Max/Typical) | Description |
|---|---|---|---|---|---|---|---|
| 1.0mm | End Launch Connector (Jack, Female) | 149-0701-601 | Stainless Steel/Passivated | 50 Ohms | 110 GHz | > 1.38 Max | End Panel Launch |
| 1.0mm | End Launch Connector (Jack, Screw-on Type, Female) | 149-0701-801 | Gold-Plated Brass | 50 Ohms | 110 GHz | > 1.38 Max | Screw-on Type, Female End Launch |
| 1.0mm | End Launch Connector (Jack, Screw-on Type, Male) | 149-0801-801 | Gold-Plated Brass | 50 Ohms | 110 GHz | > 1.38 Max | Screw-on Type, Male End Launch |
| 1.0mm | Sparkplug Connector (Female) | 149-0701-001 | Gold-Plated Brass | 50 Ohms | 110 GHz | > 1.38 Max | Female Sparkplug |
| 1.0mm | Sparkplug Connector (Male) | 149-0801-001 | Gold-Plated Brass | 50 Ohms | 110 GHz | > 1.38 Max | Male Sparkplug |
| 1.0mm | Adapter (Male to Male) | 149-0901-801 | Shell: Stainless Steel/Passivated, Body: Beryllium Copper/Gold Plated | 50 Ohms | 110 GHz | > 1.38 Max | Male to Male Adapter |
| 1.0mm | Adapter (Male to Female) | 149-0901-811 | Shell: Stainless Steel/Passivated, Body: Beryllium Copper/Gold Plated | 50 Ohms | 110 GHz | > 1.38 Max | Male to Female Adapter |
| 1.0mm | Adapter (Female to Female) | 149-0901-821 | Shell: Stainless Steel/Passivated, Body: Beryllium Copper/Gold Plated | 50 Ohms | 110 GHz | > 1.38 Max | Female to Female Adapter |
| 1.85mm | End Launch Connector (Jack, Screw-on Type) | 148-0701-301 | Stainless Steel/Passivated | 50 Ohms | 67 GHz | Typical 1.20-1.25 | Screw-on Type |
| 1.85mm | End Launch Connector (Plug, Screw-on Type) | 148-0801-301 | Stainless Steel/Passivated | 50 Ohms | 67 GHz | Typical 1.20-1.25 | Screw-on Type |
| 1.85mm | Low Profile Connector (Jack, Screw-on Type, 0.005 Pin) | 148-0701-802 | Stainless Steel/Passivated | 50 Ohms | 67 GHz | Typical 1.20 | Low profile, 0.005 Pin |
| 1.85mm | Low Profile Connector (Jack, Screw-on Type, 0.007 Pin) | 148-0701-812 | Stainless Steel/Passivated | 50 Ohms | 67 GHz | Typical 1.20 | Low profile, 0.007 Pin |
| 1.85mm | Vertical Connector (Jack, Vertical Launch, Stripline) | 148-0701-202 | Stainless Steel/Passivated | 50 Ohms | 67 GHz | Typical 1.20 | Solderless PCB Compression Mount, Stripline |
| 1.85mm | Vertical Connector (Jack, Vertical Launch, Microstrip) | 148-0701-212 | Stainless Steel/Passivated | 50 Ohms | 50 GHz | Typical 1.20 | Solderless PCB Compression Mount, Microstrip |
| 1.85mm | Adapter (Plug to Plug) | 148-0901-701 | Stainless Steel/Passivated | 50 Ohms | 67 GHz | 1.20 | Plug to Plug Adapter |
| 1.85mm | Adapter (Plug to Jack) | 148-0901-711 | Stainless Steel/Passivated | 50 Ohms | 67 GHz | 1.20 | Plug to Jack Adapter |
| 1.85mm | Adapter (Jack to Jack) | 148-0901-721 | Stainless Steel/Passivated | 50 Ohms | 67 GHz | 1.20 | Jack to Jack Adapter |
| 1.85mm | Adapter (Jack to 2.4mm Jack) | 134-1000-016 | Stainless Steel/Passivated | 50 Ohms | 67 GHz | 1.15 | Between Series Adapter |
| 1.85mm | Adapter (Jack to 2.4mm Plug) | 148-0901-711 | Stainless Steel/Passivated | 50 Ohms | 67 GHz | 1.15 | Between Series Adapter |
| 1.85mm | Adapter (Plug to 2.4mm Jack) | 134-1000-018 | Stainless Steel/Passivated | 50 Ohms | 50 GHz | 1.15 | Between Series Adapter |
| 1.85mm | Adapter (Plug to 2.4mm Plug) | 134-1000-019 | Stainless Steel/Passivated | 50 Ohms | 50 GHz | 1.15 | Between Series Adapter |
| 1.85mm | Adapter (Jack to 2.92mm Jack) | 134-1000-020 | Stainless Steel/Passivated | 50 Ohms | 46.5 Hz | 1.15 | Between Series Adapter |
| 1.85mm | Adapter (Jack to 2.92mm Plug) | 134-1000-021 | Stainless Steel/Passivated | 50 Ohms | 46.5 Hz | 1.15 | Between Series Adapter |
| 1.85mm | Adapter (Plug to 2.92mm Jack) | 134-1000-022 | Stainless Steel/Passivated | 50 Ohms | 46.5 Hz | 1.15 | Between Series Adapter |
| 1.85mm | Adapter (Plug to 2.92mm Plug) | 134-1000-023 | Stainless Steel/Passivated | 50 Ohms | 46.5 Hz | 1.15 | Between Series Adapter |
| 1.85mm | Adapter (Jack to SMPM Female) | 134-1000-024 | Stainless Steel/Passivated | 50 Ohms | 65 GHz | 1.25 | Between Series Adapter |
| 1.85mm | Adapter (Jack to SMPM Male) | 134-1000-025 | Stainless Steel/Passivated | 50 Ohms | 65 GHz | 1.25 | Between Series Adapter |
| 1.85mm | Adapter (Plug to SMPM Female) | 134-1000-026 | Stainless Steel/Passivated | 50 Ohms | 65 GHz | 1.25 | Between Series Adapter |
| 1.85mm | Adapter (Plug to SMPM Male) | 134-1000-027 | Stainless Steel/Passivated | 50 Ohms | 65 GHz | 1.25 | Between Series Adapter |
| 1.85mm | Termination (Plug, 1/4 Watts) | 148-0801-801 | Stainless Steel/Passivated | 50 Ohms | 67 GHz | 1.30 | Same Series Termination |
| 2.4mm | End Launch Connector (Jack, Screw-On Type) | 147-0701-201 | Stainless Steel/Passivated | 50 Ohms | 50 GHz | Typical 1.20 | Screw-On Type |
| 2.4mm | End Launch Connector (Plug, Screw-On Type) | 147-0801-201 | Stainless Steel/Passivated | 50 Ohms | 50 GHz | Typical 1.20-1.25 | Screw-On Type |
| 2.4mm | PC Mount Jack (Solder Type, 0.062 Board thickness) | 147-0701-241 | Gold-Plated Brass | 50 Ohms | 50 GHz | Typical 1.5 | Thru-Hole, Round Body, Solder Type |
| 2.4mm | PC Mount Jack (Solder Type, 0.042 Board thickness) | 147-0701-261 | Gold-Plated Brass | 50 Ohms | 50 GHz | Typical 1.5 | Solder Type |
| 2.4mm | PC Mount Jack (Solder Type, 0.093 Board thickness) | 147-0701-271 | Gold-Plated Brass | 50 Ohms | 50 GHz | Typical 1.5 | Solder Type |
| 2.4mm | Low Profile Connector (Jack, Screw-on Type, 0.005 Pin) | 147-0701-822 | Stainless Steel/Passivated | 50 Ohms | 50 GHz | Typical 1.20 | Low profile, 0.005 Pin |
| 2.4mm | Low Profile Connector (Jack, Screw-on Type, 0.007 Pin) | 147-0701-832 | Stainless Steel/Passivated | 50 Ohms | 50 GHz | Typical 1.20 | Low profile, 0.007 Pin |
| 2.4mm | Vertical Connector (Jack, 2-Hole Flange, Stripline) | 147-0701-211 | Stainless Steel/Passivated | 50 Ohms | 50 GHz | Typical 1.20 | PCB Compression Mount, Stripline |
| 2.4mm | Vertical Connector (Jack, 2-Hole Flange, Microstrip) | 147-0701-222 | Stainless Steel/Passivated | 50 Ohms | 50 GHz | Typical 1.20 | PCB Compression Mount, Microstrip |
| 2.4mm | Flange Connector (Plug, 2-Hole Flange) | 147-0801-601 | Stainless Steel/Passivated | 50 Ohms | 50 GHz | Typical 1.20 | Plug Receptacle |
| 2.4mm | Flange Connector (Jack, 4-Hole Flange) | 147-0701-611 | Stainless Steel/Passivated | 50 Ohms | 50 GHz | 1.20 | Jack Receptacle |
| 2.4mm | Flange Connector (Plug, 4-Hole Flange) | 147-0801-611 | Stainless Steel/Passivated | 50 Ohms | 50 GHz | 1.20 | Plug Receptacle |
| 2.4mm | Adapter (Plug to Plug, Same Series) | 147-0801-201 | Stainless Steel/Passivated | 50 Ohms | 50 GHz | Typical 1.20-1.25 | Same Series Adapter |
| 2.4mm | Adapter (Plug to Jack, Same Series) | 147-0901-801 | Stainless Steel/Passivated | 50 Ohms | 50 GHz | 1.20 | Same Series Adapter |
| 2.4mm | Adapter (Jack to Jack, Same Series) | 147-0901-821 | Stainless Steel/Passivated | 50 Ohms | 50 GHz | Typical 1.20 | Same Series Adapter |
| 2.4mm | Adapter (Jack to Jack, Right Angle, Same Series) | 147-0901-901 | Stainless Steel/Passivated | 50 Ohms | 50 GHz | Typical 1.20 | Same Series Adapter |
| 2.4mm | Adapter (Jack to 2.92mm Jack) | 134-1000-008 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | DC - 4GHz: 1.05, 4 - 20GHz: 1.08, 20 - 40GHz: 1.15 | Between Series Adapter |
| 2.4mm | Adapter (Jack to 2.92mm Plug) | 134-1000-009 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | DC - 4GHz: 1.05, 4 - 20GHz: 1.08, 20 - 40GHz: 1.15 | Between Series Adapter |
| 2.4mm | Adapter (Plug to 2.92mm Jack) | 134-1000-010 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | DC - 4GHz: 1.05, 4 - 20GHz: 1.08, 20 - 40GHz: 1.15 | Between Series Adapter |
| 2.4mm | Adapter (Plug to 2.92mm Plug) | 134-1000-0011 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | DC - 4GHz: 1.05, 4 - 20GHz: 1.08, 20 - 40GHz: 1.15 | Between Series Adapter |
| 2.4mm | Adapter (Jack to SMP Female) | 134-1000-012 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.25 | Between Series Adapter |
| 2.4mm | Adapter (Jack to SMP Female) | 134-1000-013 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.25 | Between Series Adapter |
| 2.4mm | Adapter (Plug to SMP Female) | 134-1000-014 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.25 | Between Series Adapter |
| 2.4mm | Adapter (Plug to SMP Male) | 134-1000-015 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.25 | Between Series Adapter |
| 2.4mm | Termination (Jack, 1/4 Watts) | 147-0701-801 | Stainless Steel/Passivated | 50 Ohms | 50 GHz | 1.30 | Same Series Termination |
| 2.4mm | Termination (Plug, 1/4 Watts) | 147-0801-801 | Stainless Steel/Passivated | 50 Ohms | 50 GHz | 1.30 | Same Series Termination |
| 2.92mm | End Launch Connector (Jack, Straddle Mount, Solder Type, 0.016 Board Thickness) | 145-0701-821 | Gold-Plated Brass | 50 Ohms | 40 GHz | 1.25 MAX DC-26.5GHz, 1.5 MAX 26.5GHz-40GHz | Board Thickness: 0.016 |
| 2.92mm | End Launch Connector (Jack, Straddle Mount, Solder Type, 0.062 Board Thickness) | 145-0701-841 | Gold-Plated Brass | 50 Ohms | 40 GHz | 1.25 MAX DC-26.5GHz, 1.5 MAX 26.5GHz-40GHz | Board Thickness: 0.062 |
| 2.92mm | End Launch Connector (Jack, Straddle Mount, Solder Type, 0.042 Board Thickness) | 145-0701-851 | Gold-Plated Brass | 50 Ohms | 40 GHz | 1.25 MAX DC-26.5GHz, 1.5 MAX 26.5GHz-40GHz | Board Thickness: 0.042 |
| 2.92mm | End Launch Connector (Jack, Straddle Mount, Solder Type, 0.093 Board Thickness) | 145-0701-861 | Gold-Plated Brass | 50 Ohms | 40 GHz | 1.25 MAX DC-26.5GHz, 1.5 MAX 26.5GHz-40GHz | Board Thickness: 0.093 |
| 2.92mm | End Launch Connector (Jack, Board Cutout) | 145-0701-811 | Gold-Plated Brass | 50 Ohms | 40 GHz | 1.25 MAX DC-26.5GHz, 1.5 MAX 26.5GHz-40GHz | Board Cutout |
| 2.92mm | PCB Mount Connector (Jack) | 145-0701-221 | Gold-Plated Brass | 50 Ohms | 40 GHz | 1.25 MAX DC-26.5GHz, 1.5 MAX 26.5GHz-40GHz | PCB Mount |
| 2.92mm | 45 PCB Mount Connector (Jack) | 142-0711-271 | Gold-Plated Brass | 50 Ohms | 18 GHz | 1.25 MAX DC-26.5GHz | 45 PCB Mount |
| 2.92mm | Plug, Screw-On Type | 145-0801-802 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.25 MAX DC-26.5GHz, 1.5 MAX 26.5GHz-40GHz | Screw-On Type |
| 2.92mm | Jack, Screw-On Type | 145-0701-802 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.25 MAX DC-26.5GHz, 1.5 MAX 26.5GHz-40GHz | Screw-On Type |
| 2.92mm | Low Profile Connector (Jack, Screw-on Type, 0.005 Pin) | 145-0711-802 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.25 | Low Profile, 0.005 Pin |
| 2.92mm | Low Profile Connector (Jack, Screw-on Type, 0.007 Pin) | 145-0711-812 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.25 | Low Profile, 0.007 Pin |
| 2.92mm | Vertical Connector (Jack, 2-Hole Flange, Stripline) | 145-0701-202 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.25 | PCB Compression Mount, Stripline |
| 2.92mm | Vertical Connector (Jack, 2-Hole Flange, Microstrip) | 145-0701-212 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.25 | PCB Compression Mount, Microstrip |
| 2.92mm | Flange Connector (Jack, 2-Hole Flange, Stripline) | 145-0701-601 | Stainless Steel/Gold Plated | 50 Ohms | 40 GHz | 1.20 | Jack Receptacle |
| 2.92mm | Flange Connector (Jack, 2-Hole Flange, Stripline) | 145-0701-602 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.20 | Jack Receptacle |
| 2.92mm | Flange Connector (Plug, 2-Hole Flange) | 145-0801-602 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.20 | Plug Receptacle |
| 2.92mm | Flange Connector (Jack, 4-Hole Flange, Stripline) | 145-0701-611 | Stainless Steel/Gold Plated | 50 Ohms | 40 GHz | 1.20 | Jack Receptacle |
| 2.92mm | Flange Connector (Jack, 4-Hole Flange, Stripline) | 145-0701-612 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.20 | Jack Receptacle |
| 2.92mm | Flange Connector (Plug, 4-Hole Flange) | 145-0801-612 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.20 | Plug Receptacle |
| 2.92mm | Field Replaceable Connector (Hermetic Seal Feedthru Jack) | 145-0701-001 | Stainless Steel/Gold Plated | 50 Ohms | 40 GHz | N/A (Typical Return Loss < -20 dB through 40GHz) | Accepts 0.0120 in Pin |
| 2.92mm | Field Replaceable Connector (Hermetic Seal Feedthru Jack) | 145-0701-002 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | N/A (Typical Return Loss < -20 dB through 40GHz) | Accepts 0.0120 in Pin |
| 2.92mm | Cabled Connector (Straight Solder Type Plug, 0.086 Semi-Rigid) | 145-0693-001 | Stainless Steel/Gold Plated | 50 Ohms | DC to 40GHz | Dependent upon application | With contact, slide-on nut |
| 2.92mm | Cabled Connector (Straight Solder Type Plug, 0.141 Semi-Rigid) | 145-0694-001 | Stainless Steel/Gold Plated | 50 Ohms | DC to 40GHz | Dependent upon application | With contact, slide-on nut |
| 2.92mm | Cabled Connector (Straight Solder Type Plug, 0.086 Semi-Rigid) | 145-0693-002 | Stainless Steel/Passivated | 50 Ohms | DC to 40GHz | Dependent upon application | With contact, slide-on nut |
| 2.92mm | Cabled Connector (Straight Solder Type Plug, 0.141 Semi-Rigid) | 145-0694-002 | Stainless Steel/Passivated | 50 Ohms | DC to 40GHz | Dependent upon application | With contact, slide-on nut |
| 2.92mm | Adapter (Plug to Plug, Same Series) | 145-0901-811 | Stainless Steel/Gold Plated | 50 Ohms | 40 GHz | 1.20 | Same Series Adapter |
| 2.92mm | Adapter (Plug to Jack, Same Series) | 145-0901-801 | Stainless Steel/Gold Plated | 50 Ohms | 40 GHz | 1.20 | Same Series Adapter |
| 2.92mm | Adapter (Jack to Jack, Same Series) | 145-0901-821 | Stainless Steel/Gold Plated | 50 Ohms | 40 GHz | 1.20 | Same Series Adapter |
| 2.92mm | Adapter (Jack to SMA Jack) | 134-1010-000 | Stainless Steel/Passivated | 50 Ohms | 26.5 GHz | 1.30 | Between Series Adapter |
| 2.92mm | Adapter (Jack to SMA Plug) | 134-1010-001 | Stainless Steel/Passivated | 50 Ohms | 26.5 GHz | 1.30 | Between Series Adapter |
| 2.92mm | Adapter (Plug to SMA Jack) | 134-1010-002 | Stainless Steel/Passivated | 50 Ohms | 26.5 GHz | 1.30 | Between Series Adapter |
| 2.92mm | Adapter (Plug to SMA Plug) | 134-1010-003 | Stainless Steel/Passivated | 50 Ohms | 26.5 GHz | 1.30 | Between Series Adapter |
| 2.92mm | Adapter (Jack to SMP Female) | 134-1000-000 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.25 | Between Series Adapter |
| 2.92mm | Adapter (Jack to SMP Male) | 134-1000-001 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.25 | Between Series Adapter |
| 2.92mm | Adapter (Plug to SMP Female) | 134-1000-003 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.25 | Between Series Adapter |
| 2.92mm | Adapter (Plug to SMP Male) | 134-1000-002 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.25 | Between Series Adapter |
| 2.92mm | Adapter (Jack to SMPM Female) | 134-1000-004 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.25 | Between Series Adapter |
| 2.92mm | Adapter (Jack to SMPM Male) | 134-1000-005 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.25 | Between Series Adapter |
| 2.92mm | Adapter (Plug to SMPM Female) | 134-1000-006 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.25 | Between Series Adapter |
| 2.92mm | Adapter (Plug to SMPM Male) | 134-1000-007 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.25 | Between Series Adapter |
| 2.92mm | Termination (Jack) | 145-0701-881 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.30 | Termination |
| 2.92mm | Termination (Plug) | 145-0701-881 | Stainless Steel/Passivated | 50 Ohms | 40 GHz | 1.30 | Termination |
