PololuPololu· Sensors
ACHS-7122 Current Sensor Carrier -20A to +20A
Manufacturer part no. 4031
$6.95≈ 6.22 €
Manufacturer part no. 4031
Listed by Pololu at €6.22. Delivered to France, including shipping, VAT and any customs duty, it comes to about €37.46. Prices last checked on 2026-11-01.
Delivered cost is an estimate for a single item shipped to mainland France; the seller's checkout is authoritative.
| Item | €6.22 |
|---|---|
| Shipping | €25.00 |
| VAT (20%) | €6.24 |
| Total delivered | €37.46 |
Estimate for a single item delivered to mainland France, shipped from outside the EU: customs duty and clearance fees may apply and are charged by the carrier.
2 price/stock records since 8/4/2026
| Current | 20 A |
| Weight | 1.1 g |
| Current sense | 0.1 V/A |
| Maximum logic voltage | 5.5 V |
| Minimum logic voltage | 4.5 V |
| Supply current | 15 mA |
| Current sensor | Broadcom ACHS-7122 |
| Other pcb markings | 0J1214, blank white box |
| Pcb dev codes | cs01a |
| Size | 0.7" x 0.8" |
| Version | -20A to +20A |
Clearance notice: These older current sensors are on clearance at a discounted price and will be discontinued once remaining component stock is depleted. This board is a simple carrier of Broadcom’s bidirectional ±20A ACHS-7122 Hall effect-based, electrically isolated current sensor, which offers a low-resistance (~0.7 mΩ) current path and electrical isolation. This version accepts a bidirectional current input with a magnitude up to 20 A and outputs a proportional analog voltage (100 mV/A) centered at 2.5 V with a typical error of ±1.5%. It operates from 4.5 V to 5.5 V and is intended for use in 5 V systems.
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