CBTH0BG Push-Pull Connector for PCB Inspection Microscopes 2026: 0B 4-Contact Elbow Plug

The CBTH0BG-SMSM04-D52B is a CBTH0BG push-pull connector for PCB inspection microscopes — a 0B right-angle (elbow) cable plug with four low-voltage contacts, a published rated current of 7 A, a maximum contact resistance of 6.1 mΩ, a PEEK insulator, a push-pull locking mechanism, solder termination, IP50 protection, operation from -45 °C to +125 °C and more than 5,000 mating cycles. Every specification in this guide is backed by the optical inspection equipment interconnect engineering of Spring Technology.

Pain point: Getting power and image signals off a compact microscope head — where a straight cable exit would foul the focusing knob or the adjustable stand, heads are swapped between inspection stations, and the insulator has to keep dimensional stability in a small housing?

Core answer: The CBTH0BG-SMSM04-D52B can be considered for portable digital microscope systems used in PCB solder joint inspection — its four low-voltage contacts, right-angle design and push-pull locking mechanism support compact and detachable cable connections. Printed circuit boards are widely used in electronic products, industrial control systems, communication equipment and automotive electronics, and during manufacturing and maintenance technicians inspect solder joints, component leads, pads and board surfaces to identify potential defects. A portable digital microscope provides magnified images of small components and soldering areas, letting inspectors examine solder bridges, insufficient solder, surface contamination and other visible assembly issues. The connector serves as the detachable cable interface between a microscope head and its portable image processing unit, with the right-angle configuration particularly useful around compact heads where a straight cable exit may interfere with focusing controls, adjustable stands or nearby mechanical components.

1. Technical Parameters & Engineering Standards

The CBTH0BG-SMSM04-D52B is an elbow-style cable plug on the compact 0B platform, offered with a four-contact configuration.

  • Latching Mechanism: Push-pull locking mechanism (connection and disconnection without a threaded coupling)
  • Recommended Hardware: Spring Technology Circular Connector and custom cable assembly service
  • Key Metric: 4 low-voltage contacts; right-angle exit; 7 A published rating; PEEK insulator; IP50

1.1 Configuration Summary

ParameterValue
ModelCBTH0BG-SMSM04-D52B
Body0B right-angle (elbow) cable plug
Contacts4 low-voltage contacts
Published rated current7 A (documented 0B.304 configuration)
Maximum contact resistance6.1 mΩ (documented 0B.304 configuration)
InsulatorPEEK
TerminationSolder
Cable exit90° angled exit, with bend relief
ProtectionIP50
Mating cycles>5,000 cycles

1.2 Shared 0B Platform Specifications

ParameterValue
Series0B shell — TH elbow cable plug
Pin counts available2–9 pins across the 0B shell, including the four-contact layout used here
Cable opening1.5–5.5 mm, with bend relief
Operating temperature-45 °C ~ +125 °C
Vibration resistance10~20000 Hz, 15 g
Shock resistance100 g · 6 ms
Mating cycles>5,000 cycles
KeyingKey G or keys A…M and R to prevent mismating

Note: the 7 A, 6.1 mΩ and PEEK details belong to the documented 0B.304 configuration — the exact suffix and configuration should be confirmed before purchase, since suffix variants can differ. IP50 is an indoor or protected-environment rating, not a water-exposure rating.

2. Key Advantages of the CBTH0BG-SMSM04-D52B

Microscope heads are small and crowded. The design advantages below explain why this CBTH0BG push-pull connector for PCB inspection microscopes suits compact optical inspection equipment:

2.1 Right-Angle Design for Compact Microscope Assemblies

  • Portable digital microscopes often have limited space around the camera head, focusing mechanism and optical assembly. The CBTH0BG-SMSM04-D52B features an elbow-style cable plug whose angled exit helps designers route cables along the side of the head instead of extending directly outward — reducing cable interference and improving the overall organisation of compact inspection equipment.

2.2 Four Contacts for Integrated Electrical Connections

  • The connector features four low-voltage contacts that can be allocated according to the microscope system’s circuit requirements — for example, compatible power and signal connections between the optical head and the image processing unit. The actual pin assignment and supported communication protocol must be determined by the equipment’s electrical design and verified against the connector configuration.

2.3 Push-Pull Locking for Convenient Connection and Disconnection

  • Digital microscope systems may need interchangeable camera heads, extension cables or different inspection accessories. The push-pull locking mechanism lets technicians connect and disconnect the cable assembly without repeatedly operating a threaded coupling — simplifying equipment setup and maintenance, especially where inspection instruments are frequently repositioned.

2.4 Solder Termination for Customized Cable Assemblies

  • Solder termination supports the production of customised cable assemblies for portable microscope equipment, with internal wiring configured to match the electrical requirements of the microscope head, image processing module and auxiliary circuits — providing flexibility when developing specialised systems with different cable lengths and equipment configurations.

2.5 Reliable Contact Design for Signal Connections

  • The technical documentation for the documented 0B.304 configuration specifies four low-voltage contacts and a maximum contact resistance of 6.1 mΩ. A controlled contact resistance helps limit electrical losses at the connector interface — relevant when designing compact electronic inspection instruments that require stable electrical connections.

2.6 PEEK Insulation for Electrical Isolation

  • The connector specification identifies PEEK as the insulator material — used in connector designs requiring electrical insulation and dimensional stability, supporting integration into compact electronic inspection equipment.

3. Why Choose the CBTH0BG-SMSM04-D52B?

Portable PCB digital microscope systems require compact interfaces, convenient cable replacement and organised electrical connections. This CBTH0BG push-pull connector for PCB inspection microscopes offers:

  • Four low-voltage contacts for compatible electrical circuits.
  • Right-angle cable routing for compact microscope assemblies.
  • Push-pull locking for quick connection and disconnection.
  • Solder termination for customised cable assemblies.
  • A 7 A rated current in the documented 0B.304 configuration.
  • A maximum contact resistance of 6.1 mΩ in the documented configuration.
  • PEEK insulation for electrical isolation.

These characteristics make this connector family a potential option for detachable cable assemblies in portable digital microscope inspection equipment, subject to verification of the exact part number and electrical configuration.

4. 0B Series Connector Family Overview

The 0B shell belongs to Spring Technology’s compact push-pull connector family for portable instruments and optical inspection equipment. The same platform serves this CBTH0BG push-pull connector for PCB inspection microscopes and scales across straight plugs, elbow plugs and sockets.

4.1 Available Configurations

  • Elbow plugs: TH 0B elbow plugs with bend relief, including the four-contact layout used here.
  • Straight plugs: TG 0B straight plugs with cable collet.
  • Receptacles: ZGG.0B fixed panel sockets and ZX 0B PCB sockets.
  • Pin counts: 2–9 contacts across the 0B shell, with key G or keys A…M and R.

4.2 Customization Services

  • Custom contact allocations and part numbers (such as the CBTH0BG-SMSM04-D52B) matched to each microscope head’s wiring.
  • Angled camera-head cable assemblies with bend relief and defined cable openings.
  • Shielding and grounding support for camera data and power circuits.
  • Mating receptacle selection support, including keying and contact-layout confirmation.

5. Frequently Asked Questions (FAQ)

Q1: What type of connector is the CBTH0BG-SMSM04-D52B?

**Answer:** It belongs to the 0B connector family and is specified as an elbow-style cable plug with a push-pull locking mechanism — confirm the exact suffix and configuration before purchasing.

**Answer:** The documented 0B.304 configuration has four low-voltage contacts. Discover reliable options from a certified vendor like [Spring Technology](https://www.spring-connectors.com/).

**Answer:** The official documentation for the 0B.304 configuration specifies a rated current of 7 A — verify the exact suffix variant before applying this value.

**Answer:** Its angled cable exit helps reduce cable interference around the microscope head, focusing mechanism and other compact components.

**Answer:** The four-contact configuration may be used for compatible signal and power circuits; the communication protocol and signal integrity must be verified against the exact connector specification and complete cable assembly.

**Answer:** The documented configuration is rated IP50 — intended for indoor or protected environments rather than direct exposure to water.

**Answer:** Yes — it reduces the depth needed behind the connector but requires side clearance for the bend radius, so the cable exit direction should be planned with the head’s mechanical envelope.

Conclusion & Call to Action

The CBTH0BG-SMSM04-D52B can be considered for portable digital microscope systems used in PCB solder joint inspection — its four-contact configuration, right-angle cable design, push-pull locking mechanism and solder termination offer practical advantages for compact inspection equipment requiring detachable electrical connections. This connector shows how Spring Technology serves optical inspection equipment, aligning a 0B elbow plug with the customer’s microscope head requirements, and the company also provides professional customization services for both push-pull connectors and cable assemblies, offering tailored solutions to meet your specific technical requirements.

By matching the connector configuration to the microscope’s electrical requirements and mechanical layout, equipment manufacturers can develop organised and serviceable cable interfaces.

For more information about our 0B series connectors or to discuss your requirements, contact us at [email protected] or [email protected], or visit our website. Our engineering team will respond to your CBTH0BG push-pull connector for PCB inspection microscopes enquiry within 24 hours.

Further Reading

CBTH0BG Push-Pull Connector for PCB Inspection Microscopes 2026 0B 4-Contact Elbow Plug

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