CBTG2BG Push-Pull Connector for Surgical LED Lights 2026: 2B Series 4-Contact 15 A Connector for Mobile Medical Lighting Systems for Indian Client

The CBTG2BG-SMSM04-D72B is a CBTG2BG push-pull connector for surgical LED lights — a 4-contact 2B series circular connector with a 15 A rated current, maximum contact resistance of 3.6 mΩ, a straight cable-mounted plug design, AWG 28–20 wire support and cable diameters from approximately 6.3 to 7.2 mm. Every specification in this guide is backed by the medical lighting interconnect engineering of Spring Technology.

Pain point: Powering a mobile surgical LED light that is repositioned, cleaned and stored between procedures — where the power and control cable is handled constantly, and an unstable connection at the light head would interrupt illumination?

Core answer: For an Indian client, Spring Technology supplies the CBTG2BG-SMSM04-D72B, a 4-contact 2B series CBTG2BG push-pull connector for surgical LED lights. A mobile surgical LED light is used in operating rooms, treatment rooms, emergency medical environments and other clinical areas requiring focused illumination; unlike permanently installed ceiling-mounted systems, mobile surgical lights can be repositioned according to the surgical or treatment area, so their power and control interfaces must withstand repeated equipment movement, cable handling and frequent connection and disconnection. With four low-voltage contacts and a 15 A rated current, equipment designers can configure the connector for power and auxiliary control circuits according to the system architecture, and its push-pull locking system provides quick connection while maintaining mechanical retention.

This surgical lighting connector is built on the 2B series push-pull platform, a mid-size circular connector family for professional medical and industrial equipment.

• Latching Mechanism: Push-pull self-latching system (locks by pushing into the mating receptacle, releases without threaded coupling)
• Recommended Hardware: Spring Technology Circular Connector
• Key Metric: 4 low-voltage contacts; 15 A rated current; max. 3.6 mΩ contact resistance; 5,000 mating cycles

Mobile lighting equipment is moved, cleaned and re-cabled constantly. The design advantages below explain why this CBTG2BG push-pull connector for surgical LED lights suits medical lighting power and control units:

• The connector may need to carry power to LED modules and associated electronic circuits, and a 15 A rating provides substantial electrical capacity for appropriately designed low-voltage power circuits. The actual allowable current in the finished equipment should still be determined according to the cable, contact loading, ambient temperature, duty cycle and complete system design.

• Four low-voltage contacts in a compact 2B configuration let designers combine multiple electrical functions within one connector interface — for a mobile surgical LED light, the four contacts can be allocated to power and auxiliary circuits depending on the equipment architecture, simplifying external cable management compared with several separate single-purpose connectors.

• Mobile medical equipment is frequently repositioned, transported, cleaned and reconfigured. The push-pull self-latching mechanism lets the operator connect the plug by pushing it into the mating receptacle and release it without a threaded coupling system, making cable connection and replacement more convenient during setup and maintenance.

• A maximum specified contact resistance of 3.6 mΩ helps reduce electrical losses at the connector interface and supports stable power transmission — important for LED lighting equipment, because unstable power connections can affect equipment operation.

• Mobile surgical lighting equipment undergoes repeated cable connection and disconnection during installation, maintenance, transportation and equipment replacement. A specification of 5,000 mating cycles provides a high level of mechanical endurance and helps reduce concerns about premature connector wear.

• The connector uses a chrome-plated brass shell and collet nut with nickel-plated brass components in the locking mechanism, providing a robust mechanical interface for professional medical equipment — valuable where the cable moves together with the light and the housing must protect the connection against routine mechanical handling.

• The cable collet and nut are designed to accommodate bend relief with support for cable jacket diameters of approximately 6.3–7.2 mm. This suits mobile lighting equipment in which cables bend repeatedly near the connector during movement, reducing mechanical stress at the cable-to-connector transition.

• Shielding performance is specified at 75 dB at 10 MHz and 40 dB at 1 GHz. Medical equipment operates alongside other electronic devices, switching power supplies, motors and communication systems, so the shielded construction helps designers manage electromagnetic interference at the cable interface.

• The connector is specified for 100 g shock resistance and 15 g vibration resistance, useful when it is installed on equipment regularly moved between rooms or repositioned during use. The 2B platform specifies an operating temperature range of -45 °C to +125 °C; the complete lighting system must still be evaluated according to the temperature limitations of the LED modules, electronics, cable, housing and other components.

The 2B shell is part of Spring Technology’s push-pull self-locking connector family, used in professional medical, lighting, control and test equipment. The same platform serves this surgical lighting connector and scales across pin counts and cable variants.

• Shell: 2B shell size, with 0B and 1B siblings for smaller layouts.
• Pin counts: 2 to 26 contacts, including the 4-contact configuration in this order.
• Cable retention: cable collet and nut with bend relief support; cable openings from 1.5 mm to 9.7 mm across the platform.
• Materials: chrome-plated brass shells with nickel-plated locking components.

• Custom contact allocations and part numbers (such as the CBTG2BG-SMSM04-D72B) matched to each lighting system’s power and control plan.
• Cable assembly design for the required jacket diameter and bend relief.
• Shielding and EMC verification for clinical environments.
• Pre-wired light head and control unit harnesses.

Mobile lighting follows the procedure. This CBTG2BG push-pull connector for surgical LED lights serves the power and control chain.

The 15 A rated contacts feed LED modules and associated electronics through a compact cable-mounted plug.

Lighting intensity control and auxiliary control signals share the same 4-contact layout, with pin assignment set by the lighting system manufacturer’s design.

Removable cable assemblies connect the light head and power/control module with push-pull retention and bend-relief protection at the cable entry.

This 2B connector delivery for the Indian client shows how Spring Technology serves mobile medical lighting — from the 15 A contacts and 3.6 mΩ resistance of the CBTG2BG-SMSM04-D72B to its chrome-plated brass housing and cable bend-relief design, every detail was aligned with the customer’s surgical LED light requirements. Spring Technology also provides professional customization services for both push-pull connectors and cable assemblies, offering tailored solutions to meet your specific technical requirements.

For more information about our 2B series connectors or to discuss your requirements, contact us at [email protected] or [email protected], or visit our website.

Building a mobile surgical LED light or medical lighting module? Send us your power and control requirements — our engineering team will respond with a tailored CBTG2BG push-pull connector proposal for your surgical LED lights within 24 hours.

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