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rs0302yh8

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by Ray

Jiangsu RUNIC Tech Translators / Level Shifters, SOT23-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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README

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RS0302YH8

Jiangsu RUNIC Tech · Translators / Level Shifters · SOT23-8

RS0302YH8 from Jiangsu RUNIC Tech, in a SOT23-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground reference for the device.
2 VREF1 power_in Low-voltage-side reference supply voltage for SCL1 and SDA1. Operating range 1.0V to VREF2-0.6V (recommended 0V to 5.5V, absolute max 7V). Sets the low-side I2C bus voltage.
3 SCL1 bidirectional Serial clock, low-voltage side. Open-drain I2C I/O referenced to VREF1; high-impedance when EN=Low. 5V tolerant.
4 SDA1 bidirectional Serial data, low-voltage side. Open-drain I2C I/O referenced to VREF1; high-impedance when EN=Low. 5V tolerant.
5 SDA2 bidirectional Serial data, high-voltage side. Open-drain I2C I/O referenced to VREF2; high-impedance when EN=Low. 5V tolerant.
6 SCL2 bidirectional Serial clock, high-voltage side. Open-drain I2C I/O referenced to VREF2; high-impedance when EN=Low. 5V tolerant.
7 VREF2 power_in High-voltage-side reference supply voltage for SCL2 and SDA2. Must be between VREF1+0.6V and 5.5V (absolute max 7V). Sets the high-side I2C bus voltage.
8 EN input Switch enable input (0V to 5.5V). When HIGH the translator switches conduct (SCL1↔SCL2 and SDA1↔SDA2 connected); when LOW the switches are OFF and ports are high-impedance/isolated. Switch conducts if EN is ≥0.6V higher than SCL/SDA line.

Key specifications

Parameter Value
Manufacturer Jiangsu RUNIC Tech
Package SOT23-8
Category Logic
Pins 8

Ordering variants

  • RS0302YH8
  • RS0302YH8YUTDS8

CAD (KiCad official)

  • Symbol: RS0302YH8
  • Footprint: Package_TO_SOT_SMD:SOT-23-8
  • 3D model: SOT23-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Jiangsu RUNIC Tech datasheet (None pp, sha256 efaafac875bdc2d5, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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