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MT9223CT-20BR5
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Magn Tek Current Sensors, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+54@@ -0,0 +1,54 @@+# MT9223CT-20BR5++**Magn Tek** · Current Sensors · SOP-8++MT9223CT-20BR5 from Magn Tek, in a SOP-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 | IP+ | passive | Input current positive pin (primary conductor terminal 1). Tie pins 1 and 2 together externally; primary current flows in from IP+ (pins 1,2) to IP- (pins 3,4) through the internal ~1.2 mΩ conductor. Electrically isolated from the signal side (2.4 kVrms). |+| 2 | IP+ | passive | Input current positive pin (primary conductor terminal 2). Must be shorted to pin 1 externally to carry full primary current. |+| 3 | IP- | passive | Input current negative pin (primary conductor return terminal 1). Must be shorted to pin 4 externally. |+| 4 | IP- | passive | Input current negative pin (primary conductor return terminal 2). Must be shorted to pin 3 externally. |+| 5 | GND | power_in | Signal ground for the sensor die. Reference for VCC, VOUT, and FILTER. Isolated from the primary current path (pins 1-4). |+| 6 | FILTER | passive | Filter pin to set output bandwidth. Connect an external capacitor CFILTER to GND; corner frequency fc = 1/(2·π·RF·CFILTER) with internal RF ≈ 1.8 kΩ. Increasing CFILTER lowers noise but proportionally increases response time (default BW = 150 kHz). |+| 7 | VOUT | output | Analog output signal proportional to primary current. Ratiometric to VCC; for the -20BR5 (bidirectional) variant: VOQ = VCC×0.5 (≈2.5 V at IP = 0 A), sensitivity 100 mV/A, span 0.5-4.5 V over ±20 A. DC output impedance ~5 Ω; drives loads ≥4.7 kΩ with CL up to 10 nF. |+| 8 | VCC | power_in | Power supply pin. 5 V single-supply operation (4.5-5.5 V), typical ICC = 14 mA (max 20 mA). Absolute max 6 V. Requires 0.1 µF CBYPASS from VCC to GND close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Magn Tek |+| Package | SOP-8 |+| Category | Sensor |+| Pins | 8 |++## Ordering variants++- `MT9223CT-20BR5`+- `MT9223CT-20BR5MT9223CT-20UR5`+- `MT9223CT-20BR5MT9223CT-30UR5`+- `MT9223CT-20BR5MT9223CT-35UR5`+- `MT9223CT-20BR5MT9223CT-25BR5`+- `MT9223CT-20BR5MT9223CT-30BR5`+- `MT9223CT-20BR5MT9223CT-40BR5`+- `MT9223CT-20BR5MT9223CT-50BR5`++## CAD (KiCad official)++- Symbol: `MT9223CT-20BR5`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Magn Tek datasheet](docs/mt9223ct-20br5-datasheet.pdf) (18 pp, sha256 `bc2ca277f92a71e6`, 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](docs/mt9223ct-20br5-datasheet.pdf)
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