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Fluke BB120 Shielded Banana to Female BNC Adapter

Fluke | Probe and Test Cable

Fluke BB120 Shielded Banana to Female BNC Adapter

MPN / Part No: BB120
Price updated: Sep 24, 2026

The Fluke BB120 adapter is a shielded converter that transforms Banana Jack inputs of Series 120 oscilloscopes into a BNC female connector. This component is essential for connecting standard oscilloscope probes, coaxial cables, and equipment with BNC outputs to handheld Fluke oscilloscopes.

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When you want to connect a professional oscilloscope probe or a BNC cable to the specific inputs of Series 120 oscilloscopes (like 123 or 124), you will notice that the device inputs are of the banana type. This is where Fluke model BB120, categorized under test-probes-cables, comes into play.

This adapter is designed to fully maintain shielding (protection against noise), which is crucial at high frequencies.

Its insulated and robust body not only ensures user safety according to CAT III standards but also establishes a very strong connection that does not disconnect due to hand movements or cable motions.

With the BB120, you are no longer limited to specific Fluke probes and can utilize a wide range of BNC accessories in your projects.


Features and Benefits of Fluke BB120 Adapter

  • Maintains Shielding: Signal transmission free from noise from BNC to banana input.
  • Tight Connection: Precise design that prevents connector looseness during operation.
  • Guaranteed Safety: Fully insulated to protect against potential shocks.
  • Wide Compatibility: Suitable for all Series 120 oscilloscopes and devices with 4mm banana inputs.
  • Durable Construction: Made with industrial-grade materials for long-lasting use.

Technical Specifications

FeatureValue / Description
Input Connector Type2x 4mm Safety Banana Plugs
Output Connector Type1x BNC Female
Maximum Allowed Voltage600V CAT III (according to the standard of the connected device)
ImpedanceOptimized for 50 and 75 ohm systems
Body MaterialImpact-resistant and noise-proof polymer
DimensionsDesigned to fit the standard spacing of Fluke Series 120 inputs

Frequently Asked Questions about Fluke BB120 Adapter

Does this adapter work on regular multimeters?

Yes, if the distance between your multimeter sockets is standard (19mm), you can use it, but its primary use is in oscilloscopes for converting inputs to BNC.

Does using this converter result in a signal quality loss?

No, due to the shielded design, this adapter eliminates electromagnetic interference and maintains signal quality across the operating bandwidth of the device.


Conclusion

“Unlock your device with BB120!” This adapter allows technicians to connect any standard BNC probe or cable to their handheld oscilloscope. This means higher flexibility in troubleshooting and no need to purchase expensive specialized probes for every simple test.

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Fluke

Fluke

United States

Fluke Corporation is an American brand that specializes in measurement, testing, and monitoring tool...

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