| Manufacturer | Part Number | Description |
|---|---|---|
| Huatech Huatech | HTC8634 | RRIO CMOS Operational Amplifiers |
| Huatech Huatech | HTL6054 | 4-cell lithium-ion battery protection |
| Huatech Huatech | HTC8632 | RRIO CMOS Operational Amplifiers |
| Huatech Huatech | HTL6305 | Built-in balanced 4-5 lithium-ion battery protection |
| Huatech Huatech | HTC8631 | RRIO CMOS Operational Amplifiers |