Cr2020-relay board
About the Cr2020-relay board
Cr2020-relay board is an open source PCB design by flakzilla, published on GitHub. It is a board measuring 134.7 × 122.2 mm, with 81 components from 25 distinct parts.
By type, the board carries 27 resistors and 19 diodes.
From the project
The replica doesn't perfectly recreate original board - some liberties were taken to make the design more suitable for modern components, and to make some practical changes.
The replica doesn't perfectly recreate original board - some liberties were taken to make the design more suitable for modern components, and to make some practical changes.
AK user Jayfree also designed a replacement for the relay board, his is a modernized two-layer design instead of a reproduction of the original design. Available here: https://www.audiokarma.org/forums/index.php?threads/cad-new-yamaha-cr-2020-capacitor-board.912553/page-7#post-14397551 (Photo)
Cr2020-relay board bill of materials (BOM)
81 components, 25 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | FCap_7.2x5.5_P5_3.3u | FCap_7.2x5.5_P5_3.3u | 3.3/50 |
| 1 | FCap_7.2x7.2_P5_4.7u | FCap_7.2x7.2_P5_4.7u | 4.7/50 |
| 2 | ECap_D5.0mm_P3.50mm_mod | ECap_D5.0mm_P3.50mm_mod | 10/35*, 22/63* |
| 1 | ECap_D6.3mm_P2.50mm | ECap_D6.3mm_P2.50mm | 47/35 |
| 3 | ECap_D8.0mm_P3.50mm | ECap_D8.0mm_P3.50mm | 47/35 RB, 47/63, 100/35 |
| 1 | ECap_D8.0mm_P6.50mm_mod | ECap_D8.0mm_P6.50mm_mod | 100/35* |
| 2 | ECap_D10.0mm_P5.00mm | ECap_D10.0mm_P5.00mm | 100/63, 220/50 |
| 1 | ECap_D16.0mm_P7.50mm | ECap_D16.0mm_P7.50mm | 1000/63 |
| 3 | Turret_Large_smallpad_2801-3 | Turret_Large_smallpad_2801-3 | +25(BR), -13(GY), -25(VI) |
| 1 | ceramic_cap_P5+mm | ceramic_cap_P5+mm | .01/500 |
| 1 | FCap_7.2x2.5_P5_.012u | FCap_7.2x2.5_P5_.012u | .012/63 |
| 15 | TO-92_wide_boi | TO-92_wide_boi | TR701, TR702, TR703, TR704, TR705, TR706, TR707, TR708 +7 |
| 2 | TO-220_wide_boi | TO-220_wide_boi | TR712, TR715 |
| 1 | R_POT_US | Potentiometer_Piher_PT-10-V10_Vertical | VR 2k |
| 13 | DO-35_diode_P12mm | DO-35_diode_P12mm | D701, D702, D703, D704, D705, D706, D707, D708 +5 |
| 1 | Diode_Bridge_Round_D8.9mm | Diode_Bridge_Round_D8.9mm | D713 |
| 2 | DO-41_diode_P15mm | DO-41_diode_P15mm | D714, D719 |
| 3 | DO-35_zener_P10mm | DO-35_zener_P10mm | D715, D716, D717 |
| 21 | Resistor_DIN0207_P6mm_V | Resistor_DIN0207_P6mm_V | 1.2k, 1.8k, 1k, 2.2k, 2.7k, 3.3k, 3.9k, 4.7k +13 |
| 1 | PResistor_DIN0309_.5w_special_P20mm | PResistor_DIN0309_.5w_special_P20mm | 1.5kΩ .5W |
Show 5 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PResistor_DIN0309_P20mm | PResistor_DIN0309_P20mm | 15Ω 1W |
| 1 | Resistor_DIN0207_P10mm_H | Resistor_DIN0207_P10mm_H | 18k |
| 1 | PResistor_DIN0411_5W_special | PResistor_DIN0411_5W_special | 100Ω 5W |
| 1 | PResistor_DIN0516_P26mm | PResistor_DIN0516_P26mm | 180Ω 3W |
| 1 | Resistor_DIN0207_P3.5mm_V | Resistor_DIN0207_P3.5mm_V | 470 |
Cr2020-relay board design files
The KiCad project lives in the flakzilla/cr2020-relay-board repository on GitHub; these links point at the commit this page was built from.
Cr2020-relay board: common questions
How big is the Cr2020-relay board?
The Cr2020-relay board measures 134.7 × 122.2 mm and is 1.6002 mm thick.
How many components are on the Cr2020-relay board?
81 components, from 25 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Cr2020-relay board design files?
From the flakzilla/cr2020-relay-board repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Cr2020-relay board design in my own project?
The repository has no license, so all rights stay with flakzilla. Use it as a reference, and ask the author before reusing the design.