--- type: product schema_version: 1 stock_number: "49782-1" canonical_url: "https://www.artisantg.com/49782-1/Keyence-SJ-M400" json_url: "https://www.artisantg.com/49782-1/Keyence-SJ-M400.json" generated_at: "2026-11-07T04:47:23.877Z" last_updated: "2026-10-14T13:00:51.160-05:00" --- # Keyence SJ-M400 Spot Type Amplifier Unit _Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._ ## Summary - Manufacturer: Keyence - Model: SJ-M400 - Condition: Used and in Good Condition - Price: $320.00 USD - Availability: In stock, 1 available - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 4 lb, estimated - Shipping dimensions: 9X9X3 in, estimated ## Categories - Semiconductor > Semiconductor Other (primary) ## Details This unit has a chipped DIN connector. View Photo of chipped DIN connector. ## Function The Keyence SJ-M400 Spot Type Amplifier Unit is a sophisticated control component designed for precision static elimination applications, specifically within the Keyence SJ series of ionizers. As an amplifier unit, its primary function is to drive and manage the high-voltage output required for Keyence's spot-type ionizer heads, ensuring targeted and efficient neutralization of electrostatic charges in sensitive environments. Part of Keyence's renowned lineup of industrial automation and sensing equipment, the SJ-M400 is engineered for reliability, accuracy, and ease of integration into manufacturing and assembly processes where electrostatic discharge (ESD) can cause significant damage or defects. **Key Features and Benefits:** * **Precision Control:** Optimized to deliver precise high-voltage output to connected spot-type ionizer heads, enabling highly localized and effective static neutralization for specific targets or areas. * **Stable Ion Balance:** Ensures a consistent and balanced ion output from the connected ionizer, critical for preventing over-charging and maintaining product integrity. * **Compact and Robust Design:** Built to Keyence's high industrial standards, featuring a durable, space-saving enclosure suitable for integration into machinery, workbenches, or control cabinets. * **Easy Integration:** Designed for seamless connectivity with Keyence SJ series ionizer heads and other control systems, often featuring intuitive wiring and mounting options. * **Status Indication:** Typically includes clear LED indicators or display functions to monitor operational status, power, and error conditions, simplifying troubleshooting and maintenance. * **Enhanced Safety:** Contributes to a safer working environment by actively eliminating static electricity that can lead to sparks, material adhesion, or operator discomfort. * **Reduced Defects:** By mitigating ESD, the SJ-M400 helps protect sensitive components (like semiconductors, PCBs, and optics) from damage, leading to higher product quality and reduced waste. **Typical Applications:** The Keyence SJ-M400 Spot Type Amplifier Unit is indispensable in industries and environments where even minor static charges can have significant consequences, including: * **Electronics Manufacturing:** Protecting sensitive components during assembly, testing, and packaging of PCBs, semiconductors, and microchips. * **Cleanrooms:** Maintaining ultra-clean environments by preventing static attraction of particles to surfaces. * **Medical Device Production:** Ensuring sterility and preventing contamination during the manufacturing of critical medical instruments. * **Optics Manufacturing:** Eliminating static that can attract dust and cause defects on lenses, mirrors, and other optical components. * **Automotive Industry:** Preventing static damage to electronic systems and components during assembly. * **Any Precision Manufacturing:** Where static charge interferes with material handling, product quality, or process reliability. The Keyence SJ-M400 represents a critical link in an effective static elimination strategy, offering reliable control and enhanced performance for targeted ESD protection. ## Images - - - -