{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"HC-KFS43","brand":"Mitsubishi Electric","brandSlug":"mitsubishi","productSlug":"HC-KFS43","canonicalUrl":"https://aoctrl.com/mitsubishi/HC-KFS43","factsUrl":"https://aoctrl.com/api/mcp/products/HC-KFS43","rawCanonicalId":null},"summary":{"shortDescription":"Mitsubishi Electric HC-KFS43 Servo Motor, HC-KFS Series, 0.4 kW, 2.3 A rated, 6.9 A max, 3000/4500 rpm, electromagnetic brake, 131072 ppr encoder.","salesMarkdown":"## 0.4 kW, 3000 rpm, with brake — what this servo delivers The HC-KFS43 is a 0.4 kW Mitsubishi Electric servo motor from the HC-KFS Series, rated for 2.3 A continuous and 6.9 A peak. It spins at 3000 r/min rated, 4500 r/min max, with a permissible instantaneous ceiling of 5175 r/min — the margin above max speed is the overshoot budget the drive must manage during deceleration. The electromagnetic brake holds the load at rest when power is removed — critical for vertical-axis applications on pick-and-place or gantry stages where a coasting load would drop. Encoder resolution is 131072 pulses per revolution, which at 3000 rpm gives the drive 6.55 million position increments per second to close the velocity and position loops. The power rate at continuous rated torque is 36.7 kW/s — a measure of how fast the motor can accelerate its own rotor inertia, relevant for cycle-time budgeting in high-throughput indexing. ## End-of-life sourcing — what that means for your BOM Sourcing is through independent surplus and inventory channels. Each unit is confirmed available at quote time — no blanket stock claim. If your line depends on this MPN, securing a last-time buy quantity or qualifying a migration path to the current series is the prudent move. The HC-KFS43 is a legacy BOM line; plan for a motor-and-drive pairing update when spares run dry.","metaTitle":"Mitsubishi HC-KFS43 Servo Motor, 0.4 kW, 3000 rpm, Brake","metaDescription":"Mitsubishi HC-KFS43 servo motor with brake, 0.4 kW, 2.3 A rated, 3000 rpm, 131072 ppr encoder. End-of-life sourcing available; quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Servo Motors with Brake"],"specifications":{"title":"HC-KFS43","Product No.":"HC-KFS43","description":"echnical Specifications for HC-KFS43 Motor Type: HC-KFS43 Motor Series: Mitsubishi HC-KFS Series Motor Function: Servo Motor Control Type: Speed and Position Control Inertia: Low Inertia Power Rating: 0.2 kW Rated Speed: 3000 rpm Brake Type: Electromagnetic Brake Construction: Sealed Design Size: Compact Response: Exceptional Response and High Linearity Encoder Resolution: 131072 Pulses per Revolution","Product type":"Servo Motor","Rate current(A)":"2.3","Shipping weight":"5 Kg","lifecycle_stage":"eol_hot","Maximum current(A)":"6.9","Estimated Lead Time":"Usually ships in 1 - 10 working days.","Rated speed (r/min)":"3000","Maximum speed (r/min)":"4500","Rated output capacity(kW)":"0.4","Power facility capacity(kVA)":"0.9","Permissible instantaneous speed (r/min)":"5175","Power rate at continuous rated torque (kW/s)":"36.7"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$120.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c04f77b05a8249f8710b5abec99ef076.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order the HC-KFS43 or check availability?","answer":"Submit an RFQ for your target quantity and timeline."},{"question":"What is the closest replacement for the HC-KFS43?","answer":"No pin-compatible, frame-identical successor exists from Mitsubishi. The current HG-KR and HG-JR series motors have different frame dimensions, encoder resolutions (up to 4,194,304 ppr), and connector layouts. A motor-drive pair migration is required — the HC-KFS43 cannot be swapped one-for-one without mechanical and electrical rework."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/mitsubishi/HC-KFS43","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/mitsubishi/HC-KFS43 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}