
Passive adapter with a 5.5mm/2.1mm DC barrel jack socket and a USB-C plug. Allows a standard barrel-jack 5V wall adapter to power a USB-C device.
Input side of the adapter. Adafruit describes the product as a 2.1mm 5VDC barrel jack to USB-C adapter and says to plug it onto the end of a 2.1mm 5VDC barrel jack.
USB-C plug side used to power a USB-C device from the 2.1mm 5VDC barrel-jack supply. Source page states it turns the barrel jack into USB-C for power.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| 2.1mm barrel jack input | power | Input side of the adapter. Adafruit describes the product as a 2.1mm 5VDC barrel jack to USB-C adapter and says to plug it onto the end of a 2.1mm 5VDC barrel jack. | 5VDC input, source page wording |
3.3 V · 5 V · Module
The family now includes 9 V wall adapters at 650 mA, 1 A and 2.55 A. The voltage class matches, but current headroom, plug region, connec…
Module pins: 2.1mm barrel jack input, USB-C plug output. Schematik maps them to your board in the app.
Wall adapters (5V–24V), adjustable and fixed buck/boost/buck-boost converters (MT3608, LM2596-class), USB-C PD triggers (HUSB238), breadboard supplies, DIN-rail units and passive barrel-jack adapters.
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| USB-C plug output | power | USB-C plug side used to power a USB-C device from the 2.1mm 5VDC barrel-jack supply. Source page states it turns the barrel jack into USB-C for power. | 5VDC output from the connected barrel-jack supply, source page wording |
9 VDC 1000mA regulated switching power adapter - UL listed
Regulated 9 V switching wall adapter, 1 A, 5.5 × 2.1 mm center-positive barrel. AC mains in, fixed 9 VDC out.