TPP0500B Incompatibility with DPO 7254 Oscilloscope

We recently purchased the TPP0500B probe to use with a DPO 7254 oscilloscope. There is a hard, static plastic alignment fin on the side of the probe connector that results in the inability to connect the probe to the oscilloscope. The other fins on the probe connector are mobile and appear to aid in keeping the probe connected. It appears if this was not present, we would not have an issue connecting the probe. I would like to know if there is a model that does not have this fin or another remedy that allows us to use this product.

Hello,

Yes, the TPP0500B is a newer probe and physically keyed to prevent attachment/confusion with older incompatible scopes. (i.e. the DPO7254 does not have the electrical circuitry required to support the TPP0500B).

For a new probe, I recommend the P6139B, a similar probe (500 MHz, 10x) that works with your DPO7254. For completeness, the P6139A also works but isn't in production. The only difference between the P6139A and P6139B is the tip diameter (which only impacts tip accessories compatibility, not scope compatibility). If you already have P6139A probes on-hand, that is the ideal choice.