ClassH RailSplitter
About the ClassH RailSplitter PCB
ClassH RailSplitter is an open source PCB design by OSHE-Github, published on GitHub. It is a 2-layer board measuring 101.6 × 69.3 mm, with 60 components from 25 distinct parts.
Other key parts include the AD820ARZ-REEL-REEL7, IRS2153DSPBF and SIR870DP-T1-GE3. By type, the board carries 20 capacitors, 15 resistors, 13 test points, 4 ICs, 4 inductors and 2 diodes.
It belongs with the audio designs in this gallery.
From the project
Specifications were defined throughout the process, both to guide the design and to evaluate the actual performance of the completed design. Common amplifier specifications listed on commercial designs include those shown in Table 1, including more which do not apply, are difficu
Specifications were defined throughout the process, both to guide the design and to evaluate the actual performance of the completed design. Common amplifier specifications listed on commercial designs include those shown in Table 1, including more which do not apply, are difficult to set a target for, or are not easily testable. Target values were defined based on typical values and on what was a reasonable goal for this project. The specifications and their values are listed in the table below.
Main components on the ClassH RailSplitter
ClassH RailSplitter bill of materials (BOM)
60 components, 25 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AD820ARZ-REEL-REEL7 AD820ARZ | SOIC127P600X175-8N | U1 |
| 1 | IRS2153DSPBF | SOIC8_INF | U2 |
| 2 | SIR870DP-T1-GE3 | MOSFET_7DP-T1-GE3_VIS | U3, U4 |
| 1 | CONN_01X02 Conn_01x02 | TerminalBlock_MaiXu_MX126-5.0-02P_1x02_P5.00mm | J1 |
| 1 | 10K 10k | Potentiometer_Bourns_TC33X_Vertical | RV1 |
| 13 | TestPoint | TestPoint_Keystone_5005-5009_Compact | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8 +5 |
| 2 | 60V, SK56B | D_SMB_Handsoldering | D1, D2 |
| 4 | 10U 10u | IND_ETQP5M100YFC | L1, L2, L3, L4 |
| 2 | 2.2N 2.2n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2 |
| 2 | 10U 10u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C5 |
| 1 | 1n, 0.1% | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C4 |
| 1 | 0.1U 0.1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C6 |
| 8 | 10uF, 100V | C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C7, C8, C9, C10, C11, C12, C19, C20 |
| 2 | 47uF, 100V | CP_Radial_D10.0mm_P5.00mm | C13, C14 |
| 4 | 470uF, 100V | CP_Radial_D16.0mm_P7.50mm | C15, C16, C17, C18 |
| 1 | 33K 33k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 1 | 330 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
| 1 | 3.9K 3.9k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 2 | 12K 12k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R8 |
| 1 | 3.3K 3.3k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5 |
Show 5 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 82K 82k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6 |
| 1 | 4.7K 4.7k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7 |
| 1 | 5.6k, 0.1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R9 |
| 2 | 10 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R10, R11 |
| 4 | 1.5K 1.5k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R12, R13, R14, R15 |
ClassH RailSplitter design files
The KiCad project lives in the OSHE-Github/Class-H-Amplifier repository on GitHub; these links point at the commit this page was built from.
ClassH RailSplitter: common questions
How big is the ClassH RailSplitter PCB?
The ClassH RailSplitter measures 101.6 × 69.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the ClassH RailSplitter?
60 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 ClassH RailSplitter design files?
From the OSHE-Github/Class-H-Amplifier repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the ClassH RailSplitter design in my own project?
The repository has no license, so all rights stay with OSHE-Github. Use it as a reference, and ask the author before reusing the design.
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