component
ACHS-7121-000E
Public Made by Adomby adom
AVAGO(Broadcom) Current Sensors, SO-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
markdownACHS-7121-000E
AVAGO(Broadcom) · Current Sensors · SO-8
ACHS-7121-000E from AVAGO(Broadcom), in a SO-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 | Current-sampling input terminal (fused internally with pin 2); short pins 1 and 2 together, current flows from pins 1 and 2 to pins 3 and 4 with 0.7 mΩ typ. conductor resistance. |
| 2 | IP+ | passive | Current-sampling input terminal (fused internally with pin 1); short pins 1 and 2 together, isolated from signal pins 5-8 (3 kVRMS, 1 min). |
| 3 | IP- | passive | Current-sampling output terminal (fused internally with pin 4); short pins 3 and 4 together, output voltage slope is positive for current flowing from pins 1,2 to pins 3,4. |
| 4 | IP- | passive | Current-sampling output terminal (fused internally with pin 3); short pins 3 and 4 together, isolated from signal pins 5-8 (3 kVRMS, 1 min). |
| 5 | GND | power_in | Output-side ground; connect a 1 µF bypass capacitor between pins 8 and 5 and the FILTER capacitor CF to this pin. |
| 6 | FILTER | passive | Filter pin that sets bandwidth via a capacitor CF to GND (80 kHz typ. bandwidth with 1 nF). |
| 7 | VOUT | output | Analog output voltage proportional to sensed current, VDD/2 at zero current, with load of at least 4.7 kΩ and at most 10 nF. |
| 8 | VDD | power_in | Supply voltage relative to GND, 4.5 V to 5.5 V recommended (5.0 V nominal), absolute maximum 8.0 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | AVAGO(Broadcom) |
| Package | SO-8 |
| Category | Sensors |
| Pins | 8 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | Abs | Insulation and Safety Related Specifications Absolute Maximum Rating | 5 | |
| contacts | copper | through the primary copper conduction path (from pins 1 and 2, | 1 |
CAD (KiCad official)
- Symbol:
ACHS-7121-000E - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
achs-7121-000e-etched.step/achs-7121-000e-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);achs-7121-000e.step/achs-7121-000e.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: AVAGO(Broadcom) datasheet (15 pp, sha256
46570c97df222e56, retrieved 2026-10-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).