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℃

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.

Sourced directly from our manufacturing factory, all SMZ connectors undergo strict dimensional and electrical testing to guarantee stable, long-term RF signal integrity in harsh operating environments.

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.

-Extreme Wide Temperature Adaptability

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

Standard SMB connectors adopt basic push-fit coupling that risks loosening under continuous vibration. Our SMZ series upgrades the internal latch structure to deliver reinforced self-locking retention while retaining SMB’s small-size, quick-mate advantages.
Key design improvements of SMZ RF connectors:
  1. Reinforced internal spring latch: Higher mechanical holding force, no signal dropout under shock & vibration.
  2. Precisely controlled interface mating tolerance (3.33–3.53mm standard interface) for consistent intermateability.
  3. Optimized internal dielectric layout to lower VSWR and boost high-frequency transmission stability.
  4. Standardized wire clamp & cable stripping templates for uniform crimp/weld termination across all model variants.
  5. Unified bulkhead mounting hole specifications for seamless PCB and panel integration.
All SMZ connectors maintain 50Ω characteristic impedance, the universal standard for RF test, radio communication, and microwave instrument systems.

Key Performance Specifications

ItemValue
Temperature Range-65°C ~ +125°C
Characteristic Impedance50 Ω
Frequency RangeDC to 3.0 GHz
Dielectric Withstanding Voltage≥1000 V
VSWR≤1.15 + 0.001f
Insulation Resistance≥5000 MΩ
Durability500 Mating Cycles

Interface Mating Dimensions

SMZ Connectors Interface Mating Dimensions-1                    MZ Connectors Interface Mating Dimensions-2

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 layoutSMZ-50J3SMZ-50JW3 and SMZ-50JW4

 

  • SMZ-50J4: Standard medium-size cable termination plugSMZ-50J4

 

 

  • SMZ-50JHD / SMZ-50JWHD: Bulkhead panel-mount male connectors, standardized installation cutoutsSMZ-50JHDSMZ-50JWHD

Female Jack Series (K Series)

  • SMZ-50K3: Miniature female jack for small-diameter coaxial cablesSMZ-50K3

 

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

 

 

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

 

  • SMZ-50KB2 / SMZ-50KB3: Specialized jacks compatible with SFT-50-2-1 / SFT-50-3-1 cablesSMZ-50KB2, SMZ-50KB3

Transition Adapter

  • SMZ/SMA-50JK: SMZ to SMA crossover connector for mixed RF system interconnectionSMZ or SMA-50JK

Wide Applications of SMZ Connectors

Our SMZ self-latching RF coaxial connectors are widely adopted across RF electronics industries, ideal for:

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 buyers choose SMZ over SMB/MCX: When your equipment operates in vibrating environments and demands better signal retention without sacrificing small size, SMZ is the cost-effective upgrade solution.

Why Choose us?

Our factory advantages for global buyers:
  • 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
All SMZ series products follow standardized mechanical and electrical specifications, supporting cross-regional electronic engineering design requirements.

FAQ

1. What is the difference between SMZ and SMB connectors?

 SMZ is an upgraded SMB variant with reinforced push-lock self-latching structure. It delivers stronger anti-vibration performance, lower VSWR, and wider temperature tolerance while retaining SMB’s compact size and quick push-fit mating. SMZ and SMB share similar interface dimensions but SMZ offers superior mechanical stability for dynamic vibration environments.

2. What coaxial cables work with SMZ connectors?

Our SMZ lineup is pre-engineered for SYV-50-2-2, SFF-50-2-2, SFT-50-2-1, SFT-50-3-1. Each model provides dedicated cable stripping dimensions and wire clamps for error-free termination.

3. Can SMZ connectors be panel or PCB mounted?

Yes. SMZ-50JHD and SMZ-50JWHD are bulkhead panel-mount male versions with standardized installation cutouts. We also offer SMZ/SMA transition adapters for PCB circuit integration.

4.  Is custom modification available for SMZ connectors?

We support OEM customization: custom plating, modified pin lengths, special cable clamps, pre-assembled cable jumpers, and custom packaging for brand distributors. Contact our engineering team with your dimensional or performance requirements.

5. What’s the temperature operating range of SMZ series?

-65°C to +125°C, covering industrial, lab, and outdoor radio equipment operating conditions.

Ready to Source High-Stability SMZ RF Coaxial Connectors?

Whether you need technical datasheets, sample evaluation units, bulk OEM pricing, or custom cable assembly solutions, our RF engineering team provides one-stop support for global electronics manufacturers.

-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 your inquiry via our contact form, and  our  sales engineer will reply within 24 working hours with complete technical specifications and competitive pricing.

Send Message to get Datasheet.

Strict Production Process

Product Design

Engineers develop optimized electronic circuits and structural designs based on real application needs.

Premium Component Sourcing

High-quality components and materials are carefully selected from trusted suppliers to ensure long-term reliability.

Advanced PCB Manufacturing

Automated SMT and precision soldering technologies are used to build stable and high-performance circuit boards.

Precision Assembly

Sensor elements or connector terminals are assembled with the PCB and housing to ensure accurate operation and strong mechanical stability.

Calibration & Performance Testing

Each product undergoes strict calibration and functional testing to guarantee accuracy and stable performance.

Final Quality Inspection & Packaging

Every unit is carefully inspected, labeled, and securely packaged to ensure it arrives safely and performs reliably for your applications.

Strict Production Process of Yafeite