Bourns-601-Series-RC-Network-T-Filters
About the Bourns-601-Series-RC-Network-T-Filters PCB
Bourns-601-Series-RC-Network-T-Filters is an open source PCB design by alxlab-zone66x, published on GitHub under the CC-BY-4.0 license. It is a 2-layer board measuring 9.5 × 25.7 mm, with 25 components from 3 distinct parts.
Other key parts include the Bourns_Filter_4120R-601-250_201. By type, the board carries 16 resistors, 8 capacitors and 1 IC.
From the project
Project to replace the Bourns 4120R-601-250/201 filters on Macintosh SE and SE/30. Can also be used to replace other Bourns 601 Series filters.
This is a recreation the discontinued Bourns 4120R-601-250/201 DIP used on the Macintosh SE and Macintosh SE/30. The filter chip also goes by the model numbers M/C 8908L 115-0002, CRL 8743L 115-0002 or P9120M115-0006.
Even though the Kicad and EasyEDA files are geared towards the 4120R-601-250/201 specifically, the capacitor and resistor values can be changed to make other discontinued Bourns 601 Series filters:
Main components on the Bourns-601-Series-RC-Network-T-Filters
Bourns-601-Series-RC-Network-T-Filters bill of materials (BOM)
25 components, 3 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Bourns_Filter_4120R-601-250_201 | DIP-20_W7.62mm | U1 |
| 8 | 200pF | C_0603_1608Metric | C1, C2, C3, C4, C5, C6, C7, C8 |
| 16 | 25Ω | R_0402_1005Metric | R1, R2, R3, R4, R5, R6, R7, R8 +8 |
Bourns-601-Series-RC-Network-T-Filters design files
The KiCad project lives in the alxlab-zone66x/Bourns-601-Series-RC-Network-T-Filters repository on GitHub; these links point at the commit this page was built from.
Bourns-601-Series-RC-Network-T-Filters: common questions
How big is the Bourns-601-Series-RC-Network-T-Filters PCB?
The Bourns-601-Series-RC-Network-T-Filters measures 9.5 × 25.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Bourns-601-Series-RC-Network-T-Filters?
25 components, from 3 distinct parts. The full bill of materials is listed on this page.
Where can I download the Bourns-601-Series-RC-Network-T-Filters design files?
From the alxlab-zone66x/Bourns-601-Series-RC-Network-T-Filters repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Bourns-601-Series-RC-Network-T-Filters design in my own project?
Yes, under the terms of its CC-BY-4.0 license, which alxlab-zone66x chose for the repository.