CBTG2BG Push-Pull Connector for Crash Test Equipment 2026: 2B Series 4-Contact 15 A Connector for Automotive Crash Test Data Acquisition Systems

The CBTG2BG-SMSM04-D52B is a CBTG2BG push-pull connector for crash test equipment — a 4-contact push-pull circular connector in a compact 2B size with a rated current of up to 15 A, a push-pull locking mechanism, 5,000 mating cycles, 100 g shock / 15 g vibration resistance and shielding of 75 dB at 10 MHz and 40 dB at 1 GHz. Every specification in this guide is backed by the test and measurement interconnect engineering of Spring Technology.

Pain point: Powering and re-connecting automotive crash test data acquisition equipment — where laboratory and track setups are assembled, disassembled and moved between test vehicles, and sensitive measurement channels must stay clean under extreme mechanical shock?

Core answer: Spring Technology supplies the CBTG2BG-SMSM04-D52B, a 4-contact push-pull circular CBTG2BG push-pull connector for crash test equipment, designed for applications in industry, test and measurement, transportation and aerospace. Automotive crash testing requires the collection of vast amounts of data within a very short timeframe — acceleration, force, displacement and velocity, plus vehicle and test dummy data — and data acquisition equipment typically requires stable connections to sensors, trigger systems, power modules and test control units. For automotive crash test data acquisition systems and power distribution equipment, this connector offers a compact and reliable power connection solution.

This crash test connector is built on the 2B series push-pull platform, a mid-size circular connector family used across industry, transportation, test and measurement, and aerospace applications.

• Latching Mechanism: Push-pull self-locking system (locks by insertion, no threaded rotation to release)
• Recommended Hardware: Spring Technology Circular Connector
• Key Metric: Up to 15 A rated current; 29.64 g weight; 5,000 mating cycles; 75 dB shielding at 10 MHz

Crash test rigs are rebuilt constantly and shaken violently. The design advantages below explain why this CBTG2BG push-pull connector for crash test equipment suits data acquisition systems and power distribution units:

• Automotive crash test data acquisition systems generally require a stable DC power supply. Unlike standard signal connectors, this connector’s four low-voltage contacts carry a rated current of up to 15 A, meeting the power requirements of data acquisition modules, power distribution units and test accessories — and the power link can be established through a compact 4-pin connector, simplifying complex external interface layouts.

• Crash testing involves frequent equipment installation, commissioning and disassembly. The push-pull self-locking mechanism locks simply by being inserted and requires no threaded rotation for disconnection, improving the efficiency of connecting and maintaining test equipment and reducing setup time for data acquisition equipment moved between test vehicles.

• Four low-voltage contacts support wire gauges from 28 to 20 AWG with a maximum conductor cross-sectional area of 0.5 mm². Depending on the design, the 4-pin interface can handle positive and negative power lines, auxiliary power or other low-voltage connections.

• Weighing approximately 29.64 g in a 2B size housing, the connector minimizes the space occupied by the connection system in test vehicles, data acquisition chassis or mobile test units — valuable where multiple sensor interfaces, data acquisition modules and power connections are installed together.

• Crash testing is rarely a one-off event: engineers switch test vehicles, adjust sensors and reconfigure acquisition systems repeatedly. A mating life of 5,000 cycles reduces the need for frequent connector replacement during long-term repetitive testing, simplifying equipment maintenance.

• With 100 g shock resistance and 15 g vibration resistance, the connector provides a more reliable connection foundation for interfaces within crash test data acquisition systems, power distribution units and test control equipment.

• Crash test systems incorporate numerous sensors, data acquisition modules and electronic devices, and electromagnetic interference can compromise sensitive test signals. Minimum shielding performance of 75 dB at 10 MHz and 40 dB at 1 GHz means the metal shielding structure helps enhance the electromagnetic compatibility (EMC) of the entire connection system.

The 2B shell is part of Spring Technology’s push-pull self-locking connector family, used in test and measurement, transportation, industrial and aerospace equipment. The same platform serves this crash test connector and scales across pin counts and shell variants.

• Shells: 2B shell size, with 0B and 1B siblings for smaller layouts.
• Pin counts: 2 to 26 contacts with solder terminations.
• Connectors: plugs, free sockets and panel-mount sockets.
• Contacts: gold-plated contacts with wire gauges from 28 to 20 AWG.

• Custom contact allocations and part numbers (such as the CBTG2BG-SMSM04-D52B) matched to each acquisition channel and power plan.
• Shielding and EMC verification for measurement systems.
• Pre-wired sensor, trigger and power harnesses for test vehicles.
• Key orientation selection to keep power and signal circuits segregated.

Crash test programs collect data in milliseconds and reconfigure between vehicles. This CBTG2BG push-pull connector for crash test equipment keeps the power and auxiliary links dependable.

Acquisition modules connect to sensors, trigger systems and power through compact 4-pin interfaces that survive shock and vibration during the test.

Power distribution equipment uses the 15 A rated contacts for stable DC feeds to data acquisition modules and test accessories.

Where equipment is installed, commissioned and disassembled repeatedly between laboratory and track environments, the push-pull mechanism and 5,000-cycle life reduce setup and maintenance time.

This 2B connector delivery shows how Spring Technology serves automotive test equipment — from the 15 A contacts and 29.64 g body of the CBTG2BG-SMSM04-D52B to its shielding and vibration performance, every detail was aligned with the customer’s crash test data acquisition 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 crash test data acquisition system or power distribution unit? Send us your power and channel requirements — our engineering team will respond with a tailored CBTG2BG push-pull connector proposal for your crash test equipment within 24 hours.

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