{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DTB123TCHZGT116","brand":"ROHM Semiconductor","brandSlug":"rohm","productSlug":"DTB123TCHZGT116","canonicalUrl":"https://icboms.com/rohm/DTB123TCHZGT116","factsUrl":"https://icboms.com/api/mcp/products/DTB123TCHZGT116","rawCanonicalId":null},"summary":{"shortDescription":"ROHM Semiconductor Automotive AEC-Q101 PNP Pre-Biased Transistor, 500 mA, 40 V, 200 mW, 2.2 kOhm base resistor, 200 MHz, SOT-23-3 SST3 package, Tape & Reel.","salesMarkdown":"## AEC-Q101 rated for under-hood switching The ROHM DTB123TCHZGT116 is a PNP pre-biased transistor in the SOT-23-3 package, qualified to AEC-Q101 for automotive applications. The 2.2 kOhm base resistor (R1) is integrated on-chip — one external resistor per channel is eliminated, which tightens the BOM count on dense I/O boards. Rated for 500 mA collector current (Ic max) and 40 V collector-emitter breakdown voltage, this part handles low-side switching of solenoids, relays, and indicator loads in engine bay or cabin modules. The 200 mW power dissipation ceiling means the junction temperature rise, not the 500 mA headline, sets the real continuous current in a 85°C ambient. ## Pre-biased topology and gain floor The integrated bias network (R1 = 2.2 kOhm) sets the base current for a given collector load — the transistor turns on when the input voltage exceeds the base-emitter threshold plus the drop across R1. Transition frequency (fT) is 200 MHz, so the part switches cleanly at PWM frequencies up to several hundred kilohertz — a common requirement for automotive lamp dimming or solenoid dither. Collector cutoff current is 500 nA max (ICBO), which keeps leakage negligible in off-state at elevated temperatures.","metaTitle":"ROHM DTB123TCHZGT116 PNP Pre-Biased, 500 mA, 40 V, SOT-23-3","metaDescription":"ROHM DTB123TCHZGT116 PNP pre-biased transistor, 500 mA Ic, 40 V Vceo, 2.2 kOhm base resistor, AEC-Q101 automotive grade, SOT-23-3 package.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q101","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"Automotive, AEC-Q101","Package":"Tape & Reel (TR); Cut Tape (CT)","Power - Max":"200 mW","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Transistor Type":"PNP - Pre-Biased","lifecycle_stage":"eol_hot","Resistor - Base (R1)":"2.2 kOhms","Frequency - Transition":"200 MHz","Supplier Device Package":"SST3","Vce Saturation (Max) @ Ib, Ic":"300mV @ 2.5mA, 50mA","Current - Collector (Ic) (Max)":"500 mA","Current - Collector Cutoff (Max)":"500nA (ICBO)","DC Current Gain (hFE) (Min) @ Ic, Vce":"100 @ 50mA, 5V","Voltage - Collector Emitter Breakdown (Max)":"40 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4","stockQuantity":30,"priceTiers":[{"qty":1,"price":"$0.42000","currency":"USD"},{"qty":10,"price":"$0.31400","currency":"USD"},{"qty":100,"price":"$0.17770","currency":"USD"},{"qty":500,"price":"$0.11766","currency":"USD"},{"qty":1000,"price":"$0.09021","currency":"USD"},{"qty":3000,"price":"$0.07844","currency":"USD"},{"qty":6000,"price":"$0.07060","currency":"USD"},{"qty":15000,"price":"$0.06275","currency":"USD"},{"qty":30000,"price":"$0.05883","currency":"USD"},{"qty":75000,"price":"$0.05550","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f6d3164383c5d4d0ef08e62312e7b434.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/rohm/DTB123TCHZGT116","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/rohm/DTB123TCHZGT116 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}