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Contents

README

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ZXCT199B1DW-7

Diodes Incorporated · Current Sense Amplifiers · SOT-363

ZXCT199B1DW-7 from Diodes Incorporated, in a SOT-363. 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 REF input Reference voltage input, 0V to V+. Sets the output offset (VOUT = VREF + Gain × VSENSE), so a mid-supply bias here enables bidirectional current sensing.
2 GND power_in Device ground return.
3 V+ power_in Power supply input, 2.7V to 26V (absolute max 26V). Independent of the sensed common-mode voltage. Bypass with 0.01μF to 0.1μF to GND close to the pin.
4 IN+ input Non-inverting current-sense input. Connect to the supply side of the shunt resistor. Common-mode range -0.1V to 26V; input bias current ≈28μA typ.
5 IN- input Inverting current-sense input. Connect to the load side of the shunt resistor. Differential VSENSE = V(IN+) − V(IN-); differential range ±26V.
6 OUT output Analog output. VOUT = VREF + Gain × VSENSE, where Gain is 50/100/200 V/V for the X1/X2/X3 variants. Rail-to-rail; swings to within 50mV of V+ and 5mV of GND with a 10kΩ load.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-363
Category Amplifiers/Comparators
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • ZXCT199B1DW-7
  • ZXCT199B1DW-7A1DW-7
  • ZXCT199B1DW-7A2DW-7
  • ZXCT199B1DW-7A3DW-7
  • ZXCT199B1DW-7B2DW-7
  • ZXCT199B1DW-7B3DW-7
  • ZXCT199B1DW-7C1DW-7
  • ZXCT199B1DW-7C2DW-7
  • ZXCT199B1DW-7C3DW-7

CAD (KiCad official)

  • Symbol: ZXCT199B1DW-7
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SOT-363 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (None pp, sha256 ca773210b9d7e700, 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