Diodes Incorporated ADC124EUQ-7

Overview

ADC124EUQ from Diodes Incorporated is an AEC-Q101-qualified NPN dual pre-biased transistor in SOT363 package, featuring integrated 22 kΩ bias resistors (R1/R2), 100 mA max collector current per element, and operation from −55°C to +150°C. It serves as a compact, automotive-grade logic-level interface driver for discrete signal switching in body control modules and LED load control.

For engineers reviewing the ADC124EUQ datasheet, ADC124EUQ pinout, ADC124EUQ application, or ADC124EUQ equivalent, key selection criteria include guaranteed VI(on)/VI(off) thresholds (1.9 V typ / 1.1 V max), VO(on) ≤ 0.3 V at 10 mA, R1/R2 ratio tolerance (±20%), fT = 250 MHz, and IATF 16949 manufacturing compliance.

Technical Context

This dual NPN transistor integrates matched base-emitter biasing networks-each channel contains two 22 kΩ resistors (R1 from input to base, R2 from base to emitter)-enabling direct TTL/CMOS logic-level drive without external bias components. The device operates with VCC up to 50 V and supports output currents up to 100 mA per channel under thermal derating limits.

Its epitaxial planar die construction ensures stable DC current gain (GI ≥ 56 at 5 mA), low saturation voltage (VO(on) ≤ 0.3 V), and high-frequency capability (fT = 250 MHz), making it suitable for fast-switching digital interface and low-power load switching where space-constrained PCB layout and AEC-Q101 reliability are required.

Key Specifications

Pinout & Package

SOT363 (SC-70-6) plastic surface-mount package with matte tin-plated leads, UL 94V-0 rated molding compound, and moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual NPN pre-biased transistor applications.

Compared with NSVD2N2369MXV6T1G and EMH11T2R, ADC124EUQ uniquely delivers dual-channel integration, guaranteed 1.9 V VI(on) typ, and full automotive change control-making it optimal for space-limited, safety-relevant body electronics where single-part reliability and qualification traceability are mandatory.

Availability

ADC124EUQ is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O expansion, smart LED lighting systems, and consumer appliance control boards requiring stable component supply and long-term lifecycle support.

Supply support for ADC124EUQ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets.

The ADC124EUQ belongs to Diodes' Automotive-Grade Pre-Biased Transistor product line, engineered specifically for replacing discrete BJT/resistor combinations in AEC-Q101-compliant control circuits where space, qualification, and thermal stability are critical.

FAQ

What is the maximum allowable junction temperature for ADC124EUQ?

The ADC124EUQ has an operating junction temperature range of −55°C to +150°C. Its absolute maximum rating is TJ = +150°C, and thermal derating begins at TA > 25°C per the RθJA = 450°C/W specification. At 85°C ambient, maximum safe power dissipation per element drops to approximately 120 mW to maintain TJ ≤ 150°C.

Can ADC124EUQ be used with 5 V logic inputs?

Yes. With VI(on) typ = 1.9 V and max = 3.0 V, and VI(off) max = 1.1 V, the ADC124EUQ reliably switches ON when driven by standard 5 V TTL or CMOS outputs. Input current II is ≤ 0.36 mA at VI = 5 V, ensuring minimal loading on upstream logic gates or microcontroller pins.

Is the SOT363 package lead-free and RoHS compliant?

Yes. The ADC124EUQ uses matte tin-plated leads and a halogen- and antimony-free green molding compound. It is fully compliant with EU RoHS Directive 2015/863/EU (RoHS 3), containing <900 ppm bromine, <900 ppm chlorine, and <1000 ppm antimony compounds, and carries no purposely added lead.

How does the R1/R2 ratio tolerance affect switching performance?

The ±20% R2/R1 ratio tolerance ensures predictable base current division across process and temperature variations, maintaining stable DC current gain (GI ≥ 56) and consistent VO(on) ≤ 0.3 V at 10 mA. This tolerance directly supports reliable saturation behavior in automotive environments where ambient temperature swings from −40°C to +125°C occur.