aion L5 Manuel - Page 11

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BUILD NOTES

DC converter selection

There are several brands and models available, all with the same pinout and similar specifications. Here

are the DC converters we've found that will work in this circuit.

BRAND

PART #

Traco

TEC 3-0923

CUI

PQMC3-D12-D15-S

XP Power

IZ1215S

Recom

RS3-1215D

Mornsun

WRA1215S-3WR2

The Traco TEC 3-0923 is preferred for this circuit because its supply voltage range (4.5V to 13.2V) is

perfectly suited for any type of pedal power supply. The TEC 2-0923 cannot be used since the current

handling is not high enough for the full two-channel preamp.

The other brands all have a minimum supply voltage of 9V. Most nominally 9VDC adapters put out

around 9.6V, which is more than enough—but one very notable exception is the Voodoo Labs Pedal

Power series (and likely other similar pedalboard supplies) which regulate to exactly 9.00V.

These DC converter modules are usually specced very conservatively, so it's very unlikely that there

would be any issues even if the supply voltage was slightly lower than 9V. However, operating on the

extreme lower end of a spec is not ideal from an engineering standpoint, so if we're going to point you to

a specific module, it's going to be the one that works reliably in all use cases.

If you are using a standard wall-wart supply that puts out more than 9V, then all this is immaterial and

any of the five units listed above will work the same. All significant specifications are the same aside

from this input voltage range. We haven't tried all of them directly, but their datasheets indicate they

will perform identically and they have the same pinout and physical dimensions.

This is fortunate, because most suppliers don't stock more than 20 or 30 of each type at a time. So while

we recommend the Traco TEC 3-0923 as the best overall, it will likely not always be in stock, especially

as we release more preamp projects with converters and more people are using them.

If you're having a hard time finding any that will work, try searching

shown in the Part # column. Most of these brands are also carried by DigiKey, Newark, and several other

suppliers, and this engine will search all of the major distributors at once for easier sourcing.

The Mornsun unit is not available from Mouser, but it's included here because it's cheaper than the

others (USD$8.22 as of the time of this writing) with the exact same specs. If you need more than one, it

quickly becomes much more cost-effective than the other options.

L5 PREAMP

MOUSER #

495-TEC3-0923

490-PQMC3-D12-D15-S

209-IZ1215S

919-RS3-1215D

N/A

SUPPLY

NOTES

4.5-13.2V

Preferred option. More sources on Octopart.

9-18V

NAC Semi:

https://aionfx.com/link/mornsun/

Octopart

for the part number