# HX723-05B-S

**ZHHXDZ** · Current Sensors · SOP-8

HX723-05B-S from ZHHXDZ, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | IP+ | passive | Sampling current positive terminal, one of two paired IP+ pins that carry the measured current through the internal 0.9 mΩ main conductor, rated for input current of ±50 A DC/AC RMS. |
| 2 | IP+ | passive | Sampling current positive terminal, paired with pin 1 to carry the measured current through the internal 0.9 mΩ main conductor, rated for input current of ±50 A DC/AC RMS. |
| 3 | IP- | passive | Sampling current negative terminal, one of two paired IP- pins that return the measured current through the internal 0.9 mΩ main conductor, rated for input current of ±50 A DC/AC RMS. |
| 4 | IP- | passive | Sampling current negative terminal, paired with pin 3 to return the measured current through the internal 0.9 mΩ main conductor, rated for input current of ±50 A DC/AC RMS. |
| 5 | GND | power_in | Ground reference for the sensor's supply and signal pins. |
| 6 | VZCR | output | Zero current reference signal output that provides a 0.5·VCC reference (nominally 2.5 V at 5 V supply for the 05B series, 2.470-2.530 V specified), with a reference output source current limit of 400 µA as listed in the electrical characteristics. |
| 7 | OUT | output | Signal output that sits at 50% VCC with zero current and varies linearly between 0.2 V and 4.8 V at a 5 V supply, with output source current limited to 6 mA and sink current to 30 mA (absolute maximum). |
| 8 | VCC | power_in | Supply voltage input, specified at 4.5 V to 5.5 V in operation with an absolute maximum of 7 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ZHHXDZ |
| Package | SOP-8 |
| Category | Magnetic Sensors |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage | VCC | 4.5 | 5 | 5.5 | V |  | 3 |
| Static current | ICC |  | 20 | 25 | mA |  | 3 |
| Internal reference | VZCR | 2.47 | 2.5 | 2.53 | V |  | 3 |
| Static output voltage | VOUTQ | 2.49 | 2.5 | 2.51 | V | IP=0 | 3 |
| Sensitivity (05B series) | Sens | 388 | 400 | 412 | mV/A | Full current range | 3 |
| Current range (05B series) | IP | -5 |  | 5 | A | Full current range | 3 |
| Zero current differential output error (05B series) | VOE | -45 |  | 45 | mV |  | 3 |
| Total output error (05B series) | ETOT | -3 |  | 3 | % |  | 3 |
| System bandwidth | BW |  |  | 250 | kHz | -3dB | 3 |
| Supply voltage (absolute maximum) | VCC |  |  | 7 | V |  | 2 |
| Output voltage | VOUT | -0.3 |  |  | V | maximum printed as VCC+0.3 | 2 |
| Output source current | IOUT(SOURCE) |  |  | 6 | mA |  | 2 |
| Output sink current | IOUT(SINK) |  |  | 30 | mA |  | 2 |
| Universal insulation voltage | VISO |  |  | 3500 | VRMS |  | 2 |
| Input current peak | IPEAK |  |  | 100 | A | 3 seconds | 2 |
| Input current continuous | ICON |  |  | 40 | A |  | 2 |
| Electrostatic protection (HBM) | ESD(HBM) |  |  | 4000 | V |  | 2 |
| Dielectric strength test voltage (100% production) | VTEST |  |  | 3900 | VRMS | t = 1s (100% production) | 2 |
| Electrical clearance |  | 3.8 |  |  | mm | minimum distance from input to output | 2 |
| Maximum operating isolation voltage (AC sine) | VIOWM |  |  | 424 | VRMS | AC voltage (sine wave) | 2 |
| Maximum operating isolation voltage (DC) | VIOWM |  |  | 600 | VDC | DC voltage | 2 |
| Maximum repetitive peak isolation voltage | VIORM |  |  | 600 | VPK | AC voltage (bipolar) | 2 |
| Maximum transient isolation voltage | VIOTM |  |  | 4949 | VPK | type test, t = 60s | 2 |
| Maximum surge isolation voltage | VIOSM |  |  | 7000 | VPK | type test | 2 |
| Inrush current | ISURGE |  |  | 7.5 | kA | type test, IEC 61000-4-5 | 2 |
| Maximum junction temperature | TJ |  |  | 165 | °C |  | 2 |
| Storage ambient temperature | TS | -55 |  | 150 | °C |  | 2 |
| Supply voltage (recommended) | VCC | 4.5 |  | 5.5 | V |  | 2 |
| Ambient temperature (recommended) | TA | -40 |  | 125 | °C |  | 2 |
| Input voltage | VIN+,VIN- | -600 |  | 600 | VPK |  | 2 |
| Input current (DC/AC RMS) | IP | -50 |  | 50 | A |  | 2 |
| Sensitivity temperature coefficient (05B series) | ΔSENS |  | 0.096 |  | mV/A/°C |  | 3 |
| Zero current output temperature coefficient (05B series) | ΔVOUT(Q) |  | 0.34 |  | mV/°C |  | 3 |

## CAD (KiCad official)

- Symbol: `HX723-05B-S`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `hx723-05b-s-etched.step` / `hx723-05b-s-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hx723-05b-s.step` / `hx723-05b-s.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [ZHHXDZ datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602964519383539712) (6 pp, sha256 `9e1a3a323ee7781d`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/hx723-05b-s-datasheet.pdf)