
XUNPU
A 6-pin, 1.25mm pitch SMT right-angle header with a higher voltage rating; requires mechanical verification.
SM06B-GHS-TB(LF)(SN) is a popular 6-position, 1.25mm pitch, right-angle SMT header from JST. This page analyzes potential alternatives, focusing on critical mechanical and electrical parameters to guide your selection process.
PCB footprint and housing dimensions must be identical. Even minor differences can prevent assembly.
The target's 50V/1A rating is common, and many alternatives meet or exceed these specs.
Substituting with a different connector series (e.g., PicoBlade for GH) will require changing the mating connector as well, impacting the entire supply chain.
No verified direct drop-in replacement has been identified. Candidates like WAFER-MX1.25-6PWB exist but require careful mechanical verification by an engineer.
Find a 6-pin, 1.25mm pitch, SMT, right-angle header with a verified matching footprint from its datasheet.
The primary risk is mechanical incompatibility. An incorrect substitute may not fit the PCB layout or may not connect with the mating cable assembly.

XUNPU
A 6-pin, 1.25mm pitch SMT right-angle header with a higher voltage rating; requires mechanical verification.
| Feature / factor | SM06B-GHS-TB(LF)(SN) | WAFER-MX1.25-6PWB | HC-1.25-6PWT | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Surface Mount (SMT), Side-Entry | Surface Mount (SMT), Right-Angle | Surface Mount (SMT), Right-Angle | Surface Mount (SMT), Right-Angle — Form factor matches, but exact footprint and housing dimensions require datasheet verification.; HC-1.25-6PWT: Form factor matches, but footprint and housing dimensions require datasheet verification. | |
| Voltage | 50V | 125V | 250V | 125V / 250V — Higher voltage rating provides more margin.; HC-1.25-6PWT: Significantly higher voltage rating. | |
| Current | 1.0A | 1.0A | 2A | 1.0A / 2A — matched; HC-1.25-6PWT: Higher current rating offers more thermal headroom. | |
| Pinout | JST GH Series Footprint | Unknown | - | Unknown — PCB layout compatibility must be confirmed by comparing datasheet drawings. | |
| Interface | JST GH Series | - | PicoBlade style | PicoBlade style — May not be compatible with target's GH series mating connectors. This is a critical check. |
The best potential alternatives, such as WAFER-MX1.25-6PWB, match the key electrical and mechanical form-factor specs. However, you must verify the mechanical drawings in the datasheet to ensure the PCB footprint and housing dimensions are a perfect match before ordering.