{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PS8501-AX","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"PS8501-AX","canonicalUrl":"https://icboms.com/renesas/PS8501-AX","factsUrl":"https://icboms.com/api/mcp/products/PS8501-AX","rawCanonicalId":null},"summary":{"shortDescription":"Renesas NEPOC series optocoupler, PS8501-AX, single-channel DC input, transistor-with-base output, 5000Vrms isolation, 8-DIP through-hole package, 15% min CTR at 16mA, 220ns/350ns switching.","salesMarkdown":"## 5000Vrms isolation — the design anchor The Renesas PS8501-AX is a single-channel optocoupler from the NEPOC series, built for galvanic isolation in industrial and power-conversion applications. Its 5000Vrms isolation rating covers reinforced insulation requirements in motor drives, switch-mode power supplies, and PLC I/O modules. The transistor-with-base output gives the designer access to the base node for external biasing or Miller clamp — useful when you need to tailor the switching threshold or speed beyond the internal pull-up. A minimum current transfer ratio of 15% at 16mA forward current means the output transistor can sink at least 2.4mA with 16mA in the LED — enough to drive a logic gate input or a small relay coil through a base resistor. The 8mA maximum output per channel and 35V output voltage rating suit 5V or 12V logic rails and low-power loads. If your load demands more current, you'll buffer with a transistor or a Darlington pair; the base-access output makes that easy. ## 220ns / 350ns switching — timing budget for the bus Turn-on time of 220ns and turn-off time of 350ns place this part in the medium-speed optocoupler class — fine for 50 kHz PWM signals, serial data at 115.2 kbps, or status feedback in a control loop. The asymmetry (faster on than off) is typical for transistor-output couplers; account for it in your dead-time calculation if driving a half-bridge gate driver. ## -55°C to 100°C — environment fit It stops short of full military temperature (125°C), so check the thermal profile if the part sits near a heatsink or in a sealed enclosure with high ambient. ## Package and mounting — through-hole legacy Housed in an 8-DIP (0.300\", 7.62mm) through-hole package, the PS8501-AX is a drop-in for existing socketed or wave-solder designs. Through-hole mounting means it fits prototype boards and legacy assemblies without a reflow profile change.","metaTitle":"PS8501-AX NEPOC Optocoupler, 5000Vrms Isolation, 8-DIP","metaDescription":"PS8501-AX NEPOC optocoupler from Renesas. 5000Vrms isolation, transistor with base output, 15% CTR min, 8-DIP through-hole. Active lifecycle.","metaKeywords":null},"attributes":{"series":"NEPOC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Series":"NEPOC","Package":"Tube","Input Type":"DC","Output Type":"Transistor with Base","Mounting Type":"Through Hole","Package / Case":"8-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"5000Vrms","Operating Temperature":"-55°C ~ 100°C","Voltage - Output (Max)":"35V","Current - Output / Channel":"8mA","Current Transfer Ratio (Min)":"15% @ 16mA","Voltage - Forward (Vf) (Typ)":"1.7V","Turn On / Turn Off Time (Typ)":"220ns, 350ns","Current - DC Forward (If) (Max)":"25 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.18","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.18000","currency":"USD"},{"qty":10,"price":"$2.24800","currency":"USD"},{"qty":100,"price":"$1.84140","currency":"USD"},{"qty":500,"price":"$1.55236","currency":"USD"},{"qty":1000,"price":"$1.42390","currency":"USD"},{"qty":2000,"price":"$1.36502","currency":"USD"},{"qty":5000,"price":"$1.33825","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/fddb7a64d821b993b348c06e79e450cb.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/PS8501-AX","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/PS8501-AX when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}