{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FX3U-4AD-TC-ADP","brand":"Mitsubishi Electric","brandSlug":"mitsubishi","productSlug":"FX3U-4AD-TC-ADP","canonicalUrl":"https://aoctrl.com/mitsubishi/FX3U-4AD-TC-ADP","factsUrl":"https://aoctrl.com/api/mcp/products/FX3U-4AD-TC-ADP","rawCanonicalId":null},"summary":{"shortDescription":"Mitsubishi FX3U Series, Analog Input Adapter for Thermocouple Type Temperature Sensor, FX3U-4AD-TC-ADP, 4 channels, K/J type thermocouple, ±0.5% FS + 1°C accuracy, 200 µs conversion speed, Class D grounding.","salesMarkdown":"The Mitsubishi FX3U-4AD-TC-ADP is a 4-channel thermocouple input adapter for FX3U, FX3UC, FX3G, and FX3GC series PLCs, accepting K or J type thermocouples with 200 µs per-channel conversion and ±0.5% FS + 1°C overall accuracy. It draws 15 mA from the 5 V backplane and 45 mA from a separate 24 VDC supply (+20%/-15%), so budget the external power rail before wiring. No channel-to-channel isolation exists, but the input section is optically isolated from the PLC and the power supply is isolated via DC/DC converter. ## Grounding and Accuracy Notes Class D grounding with resistance ≤ 100 Ω is specified; Mitsubishi calls for a dedicated or common ground circuit — share the ground with the PLC main unit if you must, but keep high-frequency drives off the same path. Resolution is 0.4°C for K-type and 0.3°C for J-type. The rated temperature range for K-type is -100 to +1000°C; overall accuracy is ±0.5% of full scale plus 1°C. Classified as a mature product — no imminent phase-out, so it remains a reliable BOM line item for existing FX3U-based panels.","metaTitle":"Mitsubishi FX3U-4AD-TC-ADP Analog Input Adapter, 4 Ch Thermo","metaDescription":"4-channel thermocouple input adapter for FX3U/FX3UC PLCs. K/J type, ±0.5% accuracy, 200 µs conversion. Class D grounding. Sourced to order, mature lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"title":"FX3U-4AD-TC-ADP","Ground":"Class D grounding (grounding resistance: 100 O or less) Grounding should be dedicated ground or common ground.","J type":"0.3 ° C (0.54 ° F)","Weight":"0.1 Kg","Frequency":"57 to 150 Hz : Acceleration: 9.8 m / s 2 10 times in X, Y, Z directions (80 minutes in total)","Product No.":"FX3U-4AD-TC-ADP","description":"Analog Input Adapter for Thermocouple Type Temperature Sensor","Power supply":"DC 5 V 15 mA (internal power supply from the sequencer) DC 24 V + 20% -15% 45 mA (external power supply)","Product type":"Analog Input Adapter for Thermocouple Type Temperature Sensor","Use altitude":"Can not be used in an environment pressurized to 2000 m or less under atmospheric pressure. It may break down.","Control method":"Depending on the sequence program","Noise immunity":"Noise voltage with 1,000 Vp-p, noise width 1 µs, rising 1 ns, with noise si","Use atmosphere":"There is no corrosive property, flammable gas, conductive dust (dust) is not serious","Shipping Weight":"1.1 Kg","lifecycle_stage":"mature","Overall accuracy":"± 0.5% of full scale + 1 ° C","Impact resistance":"147 m / s 2 , working time 11 ms, three times in X, Y, Z directions with a sine half-wave pulse","Insulation method":". Isolation between analog input part and sequencer by photo coupler . Insulation between analog input part and power supply by DC / DC converter . No isolation between each channel","Relative humidity":"5 to 95% RH (noncondensing).... in operation","Withstand voltage":"Between all terminals and ground terminal: 500 VAC for 1 minute","resolution K type":"0.4 ° C (0.72 ° F)","Ambient temperature":"0 to 55 ° C. ... Operating -25 to 75 ° C. ..... Save","Estimated Lead Time":"1 - 10 Working Days","Application sequencer":"FX3S, FX3G, FX3U, FX3GC, FX3UC (FX3UC - 32MT - LT is Ver.1.30 or later) FX3S - CNV - ADP is required for connection to FX3S. For connection to FX 3 G, FX 3 G - CNV - ADP is required. To connect to FX3U and FX3UC - 32MT - LT (-2), a function expansion board is required.","Digital output K type":"-1000 to +10000 (-1480 to + 18320 ) Within parentheses, the digital value at Fahrenheit setting","Insulation resistance":"Between all terminals and ground terminal: 500 MV DC 500 MO or more with an insulation resistance meter","Number of input channels":"4 channels","Direct installation Frequency":"10 to 57 Hz : One amplitude: 0.075 mm X, Y, Z 10 times in each direction (80 minutes in total)","FX3S / FX3G / FX3GC Sequencer":"250 µs (Data update every calculation cycle)","Rated temperature range K type":"-100 ° C to + 1000 ° C (-148 ° F to + 1832 ° F)","Number of occupied I / O points":"0 point (It does not relate to the maximum input / output point number of the sequencer)","Conversion speed FX3U / FX3UC PLC":"200 µs (Data update every calculation cycle)","Anti-vibration When DIN rail is installed Frequency":"10 to 57 Hz : One amplitude: 0.035 mm X, Y, Z 10 times in each direction (80 minutes in total)","Temperature sensor . temperature control input signal":"Thermocouple K type or J type JIS C 1602-1995 However, please use the same type thermocouple of all channels."}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$175.00 – $318.35","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/1ddd8216764abd3c4e4193a2e7809e95.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What PLCs is the FX3U-4AD-TC-ADP compatible with?","answer":"It connects to FX3U, FX3UC, FX3G, FX3GC, and FX3S series PLCs. FX3S requires the FX3S-CNV-ADP adapter; FX3G needs FX3G-CNV-ADP. For FX3U and FX3UC-32MT-LT, a function expansion board is required."},{"question":"What is the accuracy of this thermocouple adapter?","answer":"Overall accuracy is ±0.5% of full scale plus 1°C. Resolution is 0.4°C for K-type and 0.3°C for J-type."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/mitsubishi/FX3U-4AD-TC-ADP","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/FX3U-4AD-TC-ADP 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}}