Right-Angle Shielded RJ45 Jack for Board-Edge Ethernet
The Hirose TM11R-5M2-88(01) is an 8p8c (RJ45) modular jack from the TM11R-5M2 series, designed for through-hole mounting at a 90° right angle. It is shielded with an integrated EMI finger to provide a low-impedance ground path, and includes a board lock for secure retention during soldering and vibration. Rated Cat5, it supports 100 MHz signaling — sufficient for 100BASE-TX and 1000BASE-T Ethernet applications. The gold-plated copper alloy contacts resist corrosion over repeated mating cycles, and the PBT housing withstands soldering temperatures.
Board Lock and EMI Shielding — Fit for Industrial Ethernet
Cat5 Rating — What It Covers
The Cat5 rating guarantees performance to 100 MHz, covering 10BASE-T, 100BASE-TX, and 1000BASE-T (Gigabit Ethernet) over four twisted pairs. For applications requiring 250 MHz (Cat5e) or higher, the Cat5 rating is the baseline — the jack's physical construction (shielded, gold contacts) supports higher frequencies, but the official rating stops at Cat5. If your network spec calls for Cat5e or Cat6, verify the full channel performance with your cable and termination.
Comparing the TM11R-5M2-88(01) with Its Siblings
The TM11R-5M2-88-LP(30) is identical in every electrical and mechanical spec — same 8p8c, same shielding, same board lock — but adds a light pipe for link/activity indication. If your design needs a visible status LED on the jack face, the -LP variant saves adding a separate indicator. The TM11R-5M2-88(70) and TM11R-5M2-88-LP(70) use phosphor bronze contacts with 51.2µin gold plating, compared to the seed's copper alloy with unspecified gold thickness. For applications requiring higher mating cycle endurance — say, frequent patch-cord changes in a lab or test fixture — the (70) variants offer a measurable durability advantage.