Connector system: JST PH series (often called “PH2.0”) — common micro wire-to-wire / wire-to-board housing family.
Pin count: 5 pins (5 positions) standard PH housing.
Pitch: 2.0 mm (distance between center of adjacent pins).
Configuration: Double-ended cable (crimped terminals in both housings) — in your case usually female housings on both ends (reversed head / reversed polarity version is just reversed wiring colors or pin order).
Housing material: Insulating plastic (commonly nylon/PA based).
Crimp terminals: Tin-plated phosphor bronze or brass (typical for PH connectors).
Cable length: ~10 cm (visible in typical PH2.0 jumpers).
Connector pitch: 2.0 mm standard.
Wire gauge: typically ~26 AWG / 28 AWG stranded wire (common for PH2.0 assemblies).
Housing orientation: Straight inline on both ends (reversed head typically means the order of pins is flipped relative to wire colors).
Current rating: typically ~2 A AC/DC max per contact (dependent on wire gauge).
Voltage rating: ~100 V AC/DC max.
Insulation resistance: ≥ 1,000 MΩ typical.
Contact resistance: initial ~ ≤10 mΩ–20 mΩ (varies by crimp and plating).
Dielectric withstanding voltage: ~ 800 V AC / 1 min typical test.
Operating temperature: ~ -25 °C to +85 °C typical.
Mating cycles: PH series connectors are designed for repeated mating/unmating — typical mechanical endurance is in the low hundreds of cycles (exact value from manufacturer).
Use cases: Low-voltage DC signal & power connections for small devices, PCBs, sensors, modules, microcontrollers, battery harnesses, etc.
“Reversed head” usually refers to wiring or orientation reversal — meaning the pin order is flipped relative to a standard cable, not a different connector family. It’s still PH2.0 with the same shape and pitch, just wired in reverse order so Pin-1 on one end goes to Pin-5 on the other (or similar).
The physical housings and crimp terminals are identical in size/fit to standard PH2.0 crimp housings — only the wire order differs.
Plug-in wiring between PCBs and modules with JST-PH2.0 male headers.
Battery packs and small power modules (e.g., LiPo connectors on micro drones).
Signals, I2C/UART power + data harnesses, custom jumpers.
Robotics, LED drivers, sensor arrays where compact 2 mm pitch harnessing is needed.
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