The core difference lies in the diameter of the rear wire insulation entry seal. The standard AT04-3P is designed for standard thick-walled automotive wires, whereas the AT04-3P-RD01 features an RD01 reduced diameter seal. This smaller seal opening is specifically engineered to compress tightly against modern thin-walled wires (such as TXL or thin-jacketed cables), ensuring a reliable waterproof barrier that standard housings cannot provide on narrow gauge insulations.

No. The AT04-3P-RD01 part number specifies only the empty gray thermoplastic receptacle housing with its integrated thin-wire rear seal. To complete the assembly for a wire harness build, you must select and purchase the male crimp pins (Size 16) and the corresponding secondary locking wedge (part number AW3P) separately based on your project requirements.

Yes, absolutely. The Amphenol AT04-3P-RD01 is precision-engineered to match the dimensions, mechanical mating tracks, and electrical thresholds of the standard Deutsch DT04-3P series. It mates seamlessly with Deutsch DT06-3S plugs and accepts standard Deutsch-style size 16 contacts, serving as a reliable and cost-effective drop-in replacement.

A: Yes. The Amphenol AT Series™ is designed to be 100% functionally equivalent and interchangeable with the Deutsch DT series. The AT04-3P-RY01 will mate perfectly with any standard DT06-3S plug and use the same Size 16 contacts and AW3P wedge locks.

A: The RY01 suffix typically denotes a specific modification such as an integrated end cap for extra wire seal protection or a specific seal material/color for industrial applications. It ensures better strain relief and protection against rear-entry moisture in heavy-duty wiring harnesses.

A: No. To allow for maximum flexibility in wire gauge selection (14-20 AWG), the male pins (contacts) and the AW3P wedge lock are sold separately. Suzhou Suqin Electronic provides these components individually or as complete assembly kits upon request.