Diodes Incorporated ADTC114ECAQ-13

Overview

ADTC114ECAQ-13 from Diodes Incorporated is an AEC-Q101-qualified NPN pre-biased small-signal transistor in SOT23 package, featuring integrated 10 kΩ base bias resistors (R1 = R2), 50 V V_CC, 100 mA I_C(max), and 250 MHz f_T. It functions as a digital switch or level translator in automotive signal conditioning circuits.

For engineers reviewing the ADTC114ECAQ-13 datasheet, ADTC114ECAQ-13 pinout, ADTC114ECAQ-13 application, or ADTC114ECAQ-13 equivalent, key selection criteria include guaranteed ON/OFF thresholds (V_IN(ON) ≤ 3 V, V_IN(OFF) ≥ 0.5 V), 0.1–0.3 V V_O(on) at 10 mA, ±30% R1 tolerance, and automotive-grade thermal derating on FR4.

Technical Context

This device integrates matched 10 kΩ base-emitter and base-collector resistors to enable single-resistor logic-level interface without external biasing. Its epitaxial planar construction ensures stable h_FE (min 30) and low V_CE(SAT) (≤ 0.3 V) across -55°C to +150°C operating range.

The transistor supports 50 mA continuous output current with 310 mW power dissipation on minimum-copper FR4, and exhibits 250 MHz gain-bandwidth product-sufficient for low-speed digital switching (<10 MHz) and PWM-driven loads in body control modules.

Key Specifications

Pinout & Package

Package: SOT23 - surface-mount, 3-pin plastic case with matte tin-plated leads, UL 94V-0 rated, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NSBC114EPDXV6T1G and DTC114EET1G, ADTC114ECAQ-13 uniquely delivers AEC-Q101 qualification, halogen-free packaging, and PPAP capability-making it the sole choice for new automotive designs requiring full compliance traceability and extended temperature reliability.

Availability

ADTC114ECAQ-13 is available at Aetrix Electronics and suitable for automotive LED lighting control, body control module (BCM) inputs, PWM fan speed interfaces, and LIN bus transceiver bias stages requiring stable component supply across production lifecycles.

Supply support for ADTC114ECAQ-13 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.

This part belongs to Diodes' AEC-Q101-qualified pre-biased transistor family, designed specifically for simplified, robust digital interface and signal conditioning in automotive electronic control units.

FAQ

What is the guaranteed input voltage range for reliable ON/OFF switching?

ADTC114ECAQ-13 guarantees OFF-state operation when input voltage is ≤ 0.5 V and ON-state operation when input voltage is ≥ 3.0 V, tested at V_CC = 5 V and I_O = 10 mA. This ensures noise immunity in automotive environments where ground bounce and EMI are present.

Can this transistor replace a standard NPN BJT with external bias resistors?

Yes-it directly replaces discrete NPN transistors plus two external 10 kΩ resistors in digital switching applications. The integrated R1 = R2 network provides identical biasing while reducing PCB area by ~30% and eliminating resistor placement errors during assembly.

Is the SOT23 package lead-free and RoHS-compliant?

Yes-ADTC114ECAQ-13 uses matte tin-plated leads and a halogen- and antimony-free "Green" molding compound, fully compliant with EU RoHS Directive 2011/65/EU and J-STD-020 moisture sensitivity level 1 specifications.

What thermal derating applies above 25°C ambient?

Power dissipation must be linearly derated at 0.77 mW/°C above 25°C on minimum-copper FR4, based on its 403 °C/W junction-to-ambient thermal resistance. At 100°C ambient, maximum allowable P_D drops to 250 mW.