component
HX712-20-S
Public Made by Adomby adom
ZHHXDZ Current Sensors, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownHX712-20-S
ZHHXDZ · Current Sensors · SOP-8
HX712-20-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 | Primary sampling-current positive terminal of the internal low-resistance conductor (0.9 mΩ typical); the 20 series measures ±20 A and the absolute continuous input current is 40 A with 100 A peak for 3 s. |
| 2 | IP+ | passive | Second primary sampling-current positive terminal, electrically paired with pin 1 for the same ±20 A current path with 40 A continuous and 100 A peak (3 s) limits. |
| 3 | IP- | passive | Primary sampling-current negative terminal, the return side of the measured current path with the same ±20 A range and 40 A continuous / 100 A peak (3 s) limits. |
| 4 | IP- | passive | Second primary sampling-current negative terminal, electrically paired with pin 3 as the return side of the measured current path. |
| 5 | GND | power_in | Ground reference for the sensor; the datasheet lists it only as 地 (ground) with no further electrical limit. |
| 6 | VZCR | output | Zero-current reference output that provides 0.5 VCC; the datasheet gives an internal reference of 2.470-2.530 V (2.500 V typical), with reference sink current up to 3000 µA and source current of 400 µA. |
| 7 | OUT | output | Signal output that is 50% VCC at zero current and swings linearly with the measured current; sensitivity is 100 mV/A for the 20 series, the absolute output range is -0.3 V to VCC+0.3 V, and the datasheet specifies 6 mA source and 30 mA sink current limits with a 1 nF capacitive and 1.5 kΩ resistive load. |
| 8 | VCC | power_in | Supply voltage input with an operating range of 4.5-5.5 V (5 V typical) and 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 |
|---|---|---|---|---|---|---|---|
| 供电电压 (Supply voltage) | VCC | 4.5 | 5 | 5.5 | V | 3 | |
| 内部基准 (Internal reference) | VZCR | 2.47 | 2.5 | 2.53 | V | 3 | |
| 静态输出电压 (Quiescent output voltage) | VOUTQ | 2.49 | 2.5 | 2.51 | V | IP=0 | 3 |
| 电流范围 (Current range), 20 series | IP | -20 | 20 | A | 3 | ||
| 灵敏度 (Sensitivity), 20 series | Sens | 97 | 100 | 103 | mV/A | 全电流范围 | 3 |
| 零电流差分输出误差 (Zero-current differential output error), 20 series | VOE | -25 | 25 | mV | 3 | ||
| 总输出误差 (Total output error), 20 series | ETOT | -3 | 3 | % | 3 | ||
| 工作环境 电源电压 (Operating supply voltage) | VCC | 4.5 | 5.5 | V | 2 | ||
| 工作环境 输入电压 (Operating input voltage) | VIN+,VIN- | -600 | 600 | VPK | 2 | ||
| 工作环境 输入电流 (Operating input current, DC/AC rms) | IP | -50 | 50 | A | 2 | ||
| 工作环境 环境温度 (Operating ambient temperature) | TA | -40 | 125 | °C | 2 | ||
| 电源电压 (Supply voltage, absolute maximum) | VCC | 7 | V | 2 | |||
| 输出电压 (Output voltage, absolute maximum) | VOUT | -0.3 | V | upper limit printed as VCC+0.3 | 2 | ||
| 输出源电流 (Output source current) | IOUT(SOURCE) | 6 | mA | 2 | |||
| 输出沉电流 (Output sink current) | IOUT(SINK) | 30 | mA | 2 | |||
| 通用型绝缘电压 (General insulation voltage) | VISO | 3500 | VRMS | 2 | |||
| 输入电流峰值 (Peak input current) | IPEAK | 100 | A | 3 s | 2 | ||
| 输入电流持续 (Continuous input current) | ICON | 40 | A | 2 | |||
| 工作环境温度 (Operating ambient temperature, absolute maximum) | TA | -40 | 125 | °C | 2 | ||
| 最大结温 (Maximum junction temperature) | TJ | 165 | °C | 2 | |||
| 存储环境温度 (Storage temperature) | TS | -55 | 150 | °C | 2 | ||
| 静电保护 (ESD HBM) | ESD(HBM) | 4000 | V | HBM | 2 | ||
| 介电强度测试电压 (Dielectric withstand test voltage, type test) | VISO | 3500 | VRMS | 型式试验 50/60Hz,1min | 2 | ||
| 介电强度测试电压 (Dielectric test voltage, 100% production) | VTEST | 3900 | VRMS | t = 1s (100% production) | 2 | ||
| 基本绝缘工作电压 (Basic insulation working voltage) | VWFSI | 600 | VPK | 2 | |||
| 基本绝缘工作电压 (Basic insulation working voltage) | VWFSI | 424 | VRMS | 2 | |||
| 电气间隙 (Clearance) | 3.8 | mm | 输入端至输出端，最短距离 | 2 | |||
| 最大重复峰值隔离电压 (Maximum repetitive peak isolation voltage) | VIORM | 600 | VPK | 交流电压（双极） | 2 | ||
| 最大工作隔离电压 (Maximum working isolation voltage, AC sine) | VIOWM | 424 | VRMS | 交流电压（正弦波） | 2 | ||
| 最大工作隔离电压 (Maximum working isolation voltage, DC) | VIOWM | 600 | VDC | 直流电压 | 2 | ||
| 最大瞬态隔离电压 (Maximum transient isolation voltage, type test) | VIOTM | 4949 | VPK | 型式试验, t = 60s | 2 | ||
| 最大瞬态隔离电压 (Maximum transient isolation voltage, 100% production) | VIOTM | 5515 | VPK | VTEST t = 1s (100% production) | 2 | ||
| 最大浪涌隔离电压 (Maximum surge isolation voltage) | VIOSM | 7000 | VPK | 型式试验: 1.2 µs (rise) /50 µs (width), 单次 | 2 | ||
| 浪涌电流 (Surge current) | ISURGE | 7.5 | kA | 型式试验符合 IEC 61000-4-5, 8 µs (rise) /20 µs (width) | 2 |
CAD (KiCad official)
- Symbol:
HX712-20-S - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
hx712-20-s-etched.step/hx712-20-s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hx712-20-s.step/hx712-20-s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ZHHXDZ datasheet (6 pp, sha256
92b187c705401c57, retrieved 2026-10-18, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).