Pdu relay
About the Pdu relay PCB
Pdu relay is an open source PCB design by willbicks, published on GitHub under the CERN-OHL-W-2.0 license. It is a 2-layer board measuring 55 × 40 mm, with 10 components from 10 distinct parts.
By type, the board carries 4 connectors, 2 resistors, 1 transistor, 1 relay and 1 diode.
It belongs with the audio designs in this gallery.
From the project
A 120V AC relay module to safely power down rack mount equipment when not needed.
This PDU relay is intended to be retrofit into a standard 19" rack mount PDU, and allows for any subsection of the outputs to be turned on or off based on an external isolated logic input. It provides a relay that energizes the live rail of the PDU only when the logic input is held low, and de-energizes them otherwise. This makes the logic input suitable for any dry contact or open collector output that can sink a few milliamps of current.
Pdu relay bill of materials (BOM)
10 components, 10 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BSS84PW | SOT-323_SC-70 | Q1 |
| 1 | L_IN | Keystone_4966 | J1 |
| 1 | N | Keystone_4966 | J2 |
| 1 | L_OUT | Keystone_4966 | J3 |
| 1 | EXT_ON | TerminalBlock_TE_282834-2_1x02_P2.54mm_Horizontal | J4 |
| 1 | G2RL-1A-E DC5 | Relay_SPST_Omron_G2RL-1A-E | K2 |
| 1 | IRM-01-5 | Converter_ACDC_MeanWell_IRM-02-xx_THT | PS1 |
| 1 | 1N4448W | D_SOD-123F | D1 |
| 1 | 470 | R_0805_2012Metric | R1 |
| 1 | 47k | R_0805_2012Metric | R2 |
Pdu relay design files
The KiCad project lives in the willbicks/pdu-relay repository on GitHub; these links point at the commit this page was built from.
- Layoutpdu-relay.kicad_pcb
- Schematicpdu-relay.kicad_sch
Pdu relay: common questions
How big is the Pdu relay PCB?
The Pdu relay measures 55 × 40 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Pdu relay?
10 components, from 10 distinct parts. The full bill of materials is listed on this page.
Where can I download the Pdu relay design files?
From the willbicks/pdu-relay repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Pdu relay design in my own project?
Yes, under the terms of its CERN-OHL-W-2.0 license, which willbicks chose for the repository.
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