What this ISDN octal transceiver does on the board
The PEB2095N-VA.5 is an eight-channel ISDN transceiver from Infineon's OCTAT-P family, handling the S/T or U interface for basic-rate ISDN lines. It bridges the PCM highway or IOM-2 bus to the line interface, so a single device serves eight subscriber ports on a digital loop carrier or PBX trunk card. The IOM-2 interface is the standard digital link between the transceiver and the ISDN controller — the same bus used across Infineon's ISDN chipset, so it mates directly with the matching controller without glue logic.
Supply rail and power budget
Runs from a single 5V rail, 4.75V to 5.25V tolerance, drawing 20mA typical. That 20mA covers all eight channels in active operation — the per-channel power is about 12.5 mW, which keeps the 28-LCC package cool without a heatsink even in a dense line card. Not rated for outdoor or industrial enclosures without active cooling.
Package and rework considerations
Housed in a 28-lead LCC with J-bend leads (PG-LCC-28-R), surface-mount. The J-lead footprint is more forgiving than a gull-wing for hand rework — the leads tuck under the body, so a hot-air nozzle can heat the whole package evenly without lifting pads. Bulk packaging means the parts ship in tubes or trays, not tape-and-reel; plan for manual placement or a tube feeder on the pick-and-place. No moisture-sensitivity level is stated in the record, but LCC packages with J-leads typically handle MSL 3 or better. Store the reels dry if the original bag seal is broken — a 24-hour bake at 125°C before reflow if the floor life is exceeded.
If a BOM hedge is needed, the functional replacement is a different package or chipset — a board spin would be required.