Diodes Incorporated ADA114EUQ-13

Overview

ADA114EUQ-13 from Diodes Incorporated is a dual PNP pre-biased transistor in SOT363 package, featuring integrated 10kΩ base-emitter and base-collector bias resistors, −50V V_CEO, −100mA I_C(MAX), and AEC-Q101 qualification for automotive use in load switching and signal inversion circuits.

For engineers reviewing the ADA114EUQ-13 datasheet, ADA114EUQ-13 pinout, ADA114EUQ-13 application, or ADA114EUQ-13 equivalent, key selection criteria include guaranteed turn-on/off thresholds (V_IN(on) ≤ −3.0V, V_IN(off) ≥ −0.5V), DC current gain ≥30 at −5mA, and thermal resistance of 450°C/W on FR4 board.

Technical Context

This dual PNP transistor integrates matched bias resistors (R1 = R2 = 10kΩ ±30%) to eliminate external components in digital interface and level-shifting applications. It operates with input voltage range −40V to +10V and supports output currents up to −50mA per channel under specified thermal conditions.

The device delivers guaranteed switching behavior: turn-on when input voltage exceeds −3.0V (I_O = −10mA, V_O = −0.3V) and turn-off when input drops below −0.5V (I_O = −100µA, V_CC = −5V), enabling reliable logic-level translation in 5V/3.3V automotive control systems.

Key Specifications

Pinout & Package

SOT363 is a 6-pin, surface-mount, plastic-molded package measuring 2.15mm × 2.10mm × 0.95mm (max height), with matte tin-plated leads, UL 94V-0 flammability rating, and moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NSVD114XV6T1G and UMX18NTR, ADA114EUQ-13 provides higher voltage tolerance (−50V), full AEC-Q101 qualification, and tighter resistor matching (±30% vs. ±40%), making it the only choice for safety-critical 24V automotive modules requiring PPAP support.

Availability

ADA114EUQ-13 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input cards, HVAC control panels, and medical infusion pump interfaces requiring stable component supply and long-term lifecycle assurance.

Supply support for ADA114EUQ-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, headquartered in Plano, Texas, with ISO/TS 16949-certified wafer fabrication and assembly facilities.

The ADA114EUQ belongs to Diodes' Automotive-Grade Pre-Biased Transistor product line, designed specifically to replace discrete resistor-transistor networks in AEC-Q101-compliant vehicle subsystems.

FAQ

What is the maximum allowable junction temperature for ADA114EUQ-13?

The device supports an operating junction temperature range of −55°C to +150°C, verified per AEC-Q101 stress testing. At +25°C ambient, the 270mW power limit corresponds to a 121.5°C junction rise (450°C/W × 0.27W); derating begins linearly beyond 25°C ambient per the published curve.

Can ADA114EUQ-13 be used in a high-side switch configuration?

No - ADA114EUQ-13 is a PNP transistor with emitter-connected internally to pins 1 and 4, making it suitable only for low-side (sink) switching. Its architecture does not support high-side (source) operation because the emitter terminals are not accessible independently from collectors.

Is the 10kΩ bias resistor tolerance symmetric across production lots?

Yes - the datasheet specifies R1 tolerance as −30% to +30%, and R2/R1 ratio tolerance as −20% to +20%. This ensures matched biasing between transistors within a single package, critical for consistent channel-to-channel switching behavior in dual-output applications.

Does ADA114EUQ-13 require external decoupling capacitors in typical digital interface use?

No - the device contains no internal active circuitry requiring power supply stabilization. Decoupling is unnecessary unless driving inductive loads (e.g., relays), in which case a flyback diode across the load is mandatory, not a capacitor at the transistor supply pin.