If your 9E102 has 14 pins, it is likely a multi-tap delay line. Example pinout:
Always refer to the specific manufacturer’s datasheet for exact pin assignments.
The most common package for a 9E102 is an 8-pin DIP (Dual Inline Package). Below is a likely pin assignment.
Pair the 9E102 with a ferrite bead to create a pi-filter (C-L-C) for power lines. Example: Input в†’ 10 ВµF electrolytic в†’ Ferrite bead в†’ 9E102 в†’ Load. This attenuates conducted emissions above 10 MHz. 9e102 datasheet
Q1: Is the 9E102 a standard logic gate?
No. It is a delay line—a specialized IC that propagates a logic signal with a fixed time shift. It does not perform Boolean logic.
Q2: Can I use the 9E102 with 3.3V logic?
Not recommended. The 9E102 is designed for 5V TTL. At 3.3V, delays increase unpredictably, and outputs may not reach valid logic levels. Use a level shifter or choose a modern 3.3V delay line (e.g., 74LVC1GXX series).
Q3: What does “9E102” stand for?
Typically: Series 9E, delay value 102 (ns). Some manufacturers embed date codes or temperature ranges in the marking—check the full label. If your 9E102 has 14 pins, it is
Q4: Where can I buy a 9E102 today?
It is obsolete but often available from surplus electronic suppliers (eBOM, Octopart, eBay) or authorized distributors specializing in legacy parts (Rochester Electronics).
Q5: Can I cascade two 9E102s for 204 ns delay?
Yes. Connect the output of the first to the input of the second. Ensure total delay does not exceed your signal’s period.
Step 1 – Check the Component's Physical Marking Again Always refer to the specific manufacturer’s datasheet for
Step 2 – Search by Full Marking Try these variations in Google or Octopart:
Step 3 – Search by Function (if you know the component type)
Step 4 – Use SMD Codebooks
Step 5 – Upload a Clear Photo If you can, take a high-resolution photo of the component (showing the marking and any logo) and post it on: