Description
ADC 394876-4 Band Pass Filter FR4QX22YY 4.25 kHz 5915-496-5545 10K Ohm
ADC band pass filter module designed to isolate and pass signals at 4.25 kHz center frequency while attenuating out-of-band noise. Operates with 10K ohm input and output impedance, configured as a three-terminal enclosed module.
Specifications & What's Included
- Model: ADC 394876-4 / FR4QX22YY
- Center Frequency: 4.25 kHz
- Input/Output Impedance: 10K Ohm
- Terminals: 3-terminal (IN, COM, OUT) with screw terminal/solder lug connectors
- Form Factor: Enclosed module
- Manufacturing: United States
- Unit only; no accessories included
Applications
Band pass filters of this type were used in legacy telecommunications and industrial signal processing equipment to condition audio and control signals. The 4.25 kHz passband suits analog telephony systems, telecom equipment, and instrumentation requiring selective frequency filtering. Filters of this specification appear in vintage telephone switching systems, channel banks, and signal conditioning circuits where impedance matching and frequency selectivity were required.
This ADC 394876-4 Band Pass Filter (FR4QX22YY) has been inspected and appears to be in good used condition. The metal housing shows light surface oxidation and age-consistent patina on the exterior, consistent with its 1973 manufacture date. The label is fully legible and the three solder lug terminals are intact and undamaged. No cracks, dents, or structural damage are noted. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
ADC |
Model: |
394876-4 |
MPN: |
394876-4 |
Secondary Model: |
FR4QX22YY |
Type: |
Band Pass Filter |
NSN: |
5915-496-5545 |
Center Frequency: |
4.25 kHz |
Input Impedance: |
10K Ohm |
Output Impedance: |
10K Ohm |
Terminals: |
3-terminal: 1-IN, 2-COM, 3-OUT |
Connector Type: |
Screw terminal / solder lug |
Date Code: |
73-15 |
Lot / Batch Code: |
D11158 |
Country/Region of Manufacture: |
United States |
Form Factor: |
Enclosed Module |
SKU: |
47956 |
Condition: |
Used – Inspected |
Seller Notes: |
Unit only; no additional accessories included. |
Condition Notes: |
ADC 394876-4 Band Pass Filter FR4QX22YY inspected and in good used condition. Housing shows light surface oxidation typical of age. Label legible; all three terminals intact. No structural damage noted. |
