Connectors
The connector family has 221 members that share little beyond a physical form factor — passive adapters, pin headers, terminal blocks, antennas, and a handful of dev boards occupy the same shelf by accident.
Passive adapters, 2.54 mm pin headers, terminal blocks, JST and barrel-jack connector pairs, RF antennas and microSD adapters. Mechanical fit between two connectors does not confirm voltage, pinout or protocol compatibility.
- Passive hardware dominates: 2.54 mm male and female pin headers in straight and right-angle forms, 2-pin JST SM plug-and-receptacle sets, 4-pin JST SM variants, 2.1 mm DC barrel jacks and 3.81 mm terminal blocks.
- RF antenna options include 2.4 GHz RP-SMA duck antennas and a 4G/3G/2G/LPWA waterproof magnetic-base SMA antenna. These are passive and require a matching RF connector on the board or module.
- A mechanical match does not confirm electrical compatibility. Check voltage rating, pinout, polarity and current capacity before substituting one connector type for another, particularly across the passive-to-active boundary.
Compare
Swap guidanceCan I swap these?
Pick the board you have - we'll show what we know about swapping it.
Known swap options (1)
General board checks (5)
- Decide the job first: passive power adapter, Qwiic/I²C board, display module or storage-card adapter.
- For barrel parts, confirm plug size, center polarity, source voltage and the receiving board's allowed input range.
- For Qwiic boards, confirm I²C address, firmware/library support, host voltage assumptions and whether the board is the thing you actually want to replace.
- For microSD adapters, confirm card size, slot orientation, clearance and the host device's supported card format.
- Use the exact vendor page as the final source before buying or swapping.
