SMZ Connectors
SMZ Connectors
Features
Developed from standard SMB design to provide enhanced mechanical coupling and structural reliability
Features a smart push-in self-latch coupling system for quick and secure mating
Engineered with exceptional vibration-proof capabilities to sustain flawless signal connection under stress
Extremely compact physical dimensions allow for high-density component packing in restricted spaces
Maintains standard 50 Ω characteristic impedance for consistent RF signal matching across networks
- Supports dependable radio and microwave transmission across a wide frequency range from DC to 3.0 GHz
- Delivers excellent signal integrity with a maximum voltage standing wave ratio of 1.15 + 0.001 f
Rated to withstand a high dielectric test voltage of greater than or equal to 1000 V
Guarantees supreme circuit isolation with a minimum insulation resistance performance of 5000 MΩ
Operates reliably under severe environmental conditions across a temperature range of –65℃ to +125℃
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SMZ Series Push-Lock Self-Latching RF Coaxial Connectors – Upgraded SMB RF Interconnects for Compact Radio & Test Equipment
Developed as an enhanced iteration of standard SMB connectors, SMZ series delivers superior vibration resistance, consistent electrical performance, miniaturized footprint, and tool-free quick mating. Engineered for 50-ohm RF transmission, this full lineup covers cable-terminated plugs, panel bulkhead jacks, PCB-mount adapters, and cross-series SMZ/SMA transition parts, perfectly matching SYV-50, SFF-50, SFT-50 coaxial cables for wireless radio hardware, signal test instruments, and compact communication modules.
Main Advantages of SMZ Series RF Coaxial Connectors
–Upgraded Self-Latch Push Coupling
One-click push-fit locking eliminates accidental disconnection; far better anti-vibration performance than standard SMB for moving equipment and field test setups.
–Ultra-Compact Miniature Form Factor
Small body dimensions with standardized interface mating size, ideal for high-density PCB layouts and portable handheld radio devices with limited installation room.
–Premium RF Electrical Performance
Low VSWR ≤1.15+0.001f, dielectric withstand voltage ≥1000V, robust insulation resistance, minimizing signal loss and reflection across full operating frequency bands.
Stable performance from -65°C to +125°C, suitable for industrial test gear, outdoor radio equipment, and temperature-fluctuating lab environments.
–Complete Model & Cable Compatibility
Full range of male plugs (J series), female jacks (K series), bulkhead panel mounts, PCB adapters, SMZ-SMA crossover connectors; matched stripping dimensions for SYV-50-2-2, SFF-50-2-2, SFT-50-2-1, SFT-50-3-1 cables.
–Easy Assembly & Standardized Installation
Predefined cable stripping lengths, dedicated wire clamps, unified panel cutout dimensions, cutting assembly time for OEM & contract manufacturers.
What Makes SMZ Different from SMB
- Reinforced internal spring latch: Higher mechanical holding force, no signal dropout under shock & vibration.
- Precisely controlled interface mating tolerance (3.33–3.53mm standard interface) for consistent intermateability.
- Optimized internal dielectric layout to lower VSWR and boost high-frequency transmission stability.
- Standardized wire clamp & cable stripping templates for uniform crimp/weld termination across all model variants.
- Unified bulkhead mounting hole specifications for seamless PCB and panel integration.
Key Performance Specifications
| Item | Value |
|---|---|
| Temperature Range | -65°C ~ +125°C |
| Characteristic Impedance | 50 Ω |
| Frequency Range | DC to 3.0 GHz |
| Dielectric Withstanding Voltage | ≥1000 V |
| VSWR | ≤1.15 + 0.001f |
| Insulation Resistance | ≥5000 MΩ |
| Durability | 500 Mating Cycles |
Interface Mating Dimensions

Full SMZ Model Lineup Overview
Male Plug Series (J Series)
- SMZ-50J3 / SMZ-50JW3 and SMZ-50JW4: Matches thin SFT-50 series cables, compact wire clamp layout


- SMZ-50J4: Standard medium-size cable termination plug

- SMZ-50JHD / SMZ-50JWHD: Bulkhead panel-mount male connectors, standardized installation cutouts


Female Jack Series (K Series)
- SMZ-50K3: Miniature female jack for small-diameter coaxial cables

- SMZ-50K4: General-purpose female jack for medium RF cables

- SMZ-50K402G: Extended-length female jack for deep-panel mounting

- SMZ-50KB2 / SMZ-50KB3: Specialized jacks compatible with SFT-50-2-1 / SFT-50-3-1 cables

Transition Adapter
- SMZ/SMA-50JK: SMZ to SMA crossover connector for mixed RF system interconnection

Wide Applications of SMZ Connectors
Portable Radio Communication Equipment
Handheld transceivers, compact wireless modules, intercom radio devices requiring vibration-resistant stable connections.
RF Signal Test & Measurement Instruments
Signal generators, spectrum analyzers, oscilloscope RF probes, bench lab testing equipment with frequent cable swapping.
Industrial Microwave & Wireless Modules
Industrial sensor RF links, short-distance data transmission modules, high-density rack-mounted communication hardware.
Medical Electronic Test Devices
Compact medical monitoring equipment with miniaturized internal RF circuit layouts.
OEM Custom Electronic Assemblies
Contract manufacturing projects needing standardized, cost-effective miniature RF interconnects with custom cable assembly support.
Why Choose us?
- Full in-house production: CNC machining, gold/nickel plating, insulator molding, assembly & electrical testing
- Strict incoming & finished-product inspection: VSWR, insulation resistance, voltage withstand, vibration durability testing
- Flexible order support: Small sample orders, bulk OEM volume production, custom pin length, plating finish, cable assembly service
- Complete technical documentation supply: Datasheets, dimension drawings, cable stripping guides, installation templates
- Stable lead time & competitive factory-direct pricing for global radio & instrument manufacturers
FAQ
1. What is the difference between SMZ and SMB connectors?
2. What coaxial cables work with SMZ connectors?
3. Can SMZ connectors be panel or PCB mounted?
4. Is custom modification available for SMZ connectors?
5. What’s the temperature operating range of SMZ series?
Ready to Source High-Stability SMZ RF Coaxial Connectors?
-Download full SMZ product datasheet with dimension drawings
– Request free engineering samples for performance testing
-Submit your OEM custom connector requirements
-Get factory direct quotation for mass production
Send Message to get Datasheet.
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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