Diodes Incorporated ADC143ZUQ-13

Overview

ADC143ZUQ-13 from Diodes Incorporated is an AEC-Q101 qualified NPN pre-biased dual transistor in SOT363 package, featuring integrated 4.7 kΩ and 47 kΩ bias resistors, 50 V V_CC, 100 mA I_C(max), and 250 MHz f_T, used for automotive signal switching and level translation.

For engineers reviewing the ADC143ZUQ-13 datasheet, ADC143ZUQ-13 pinout, ADC143ZUQ-13 application, or ADC143ZUQ-13 equivalent, key selection criteria include guaranteed logic-level switching thresholds (V_IN(off) ≤ 0.5 V, V_IN(on) ≥ 1.3 V), dual-element thermal derating compliance, and automotive-grade traceability under IATF 16949.

Technical Context

This dual NPN transistor integrates matched base biasing networks per element-R₁ = 4.7 kΩ and R₂ = 47 kΩ-with ±30% R₁ tolerance and ±20% R₂/R₁ ratio tolerance. Each channel delivers DC current gain (h_FE) ≥ 80 at I_O = 10 mA and V_CE = 5 V.

It operates across −55 °C to +150 °C, supports 270 mW total power dissipation on FR-4 board (150 mW per element max), and achieves 0.1–0.3 V V_O(on) at I_O/I_L = 5 mA/0.25 mA with <0.5 μA I_O(off) at V_CC = 50 V and V_I = 0 V.

Key Specifications

Pinout & Package

SOT363 is a 6-pin, surface-mount, lead-free plastic package with 0.65 mm pitch, UL 94V-0 rated molding compound, and matte tin-plated leads solderable per MIL-STD-202 Method 208.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NSVD2N2369MUTBG and EMD2201MT2G, ADC143ZUQ-13 uniquely provides dual NPN topology with matched internal biasing in one SOT363 footprint-reducing layout complexity and improving channel-to-channel timing consistency for synchronous switching applications.

Availability

ADC143ZUQ-13 is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and medical diagnostic equipment requiring stable component supply and AEC-Q101 traceability.

Supply support for ADC143ZUQ-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 design, manufacturing, and sales operations across Asia, Europe, and North America.

The ADC143ZUQ belongs to Diodes' Automotive-Grade Pre-Biased Transistor product line, designed specifically for high-reliability signal switching in harsh-environment automotive and industrial control systems.

FAQ

What is the maximum allowable junction temperature for ADC143ZUQ-13?

The device supports operation from −55 °C to +150 °C junction temperature. Its thermal resistance is 450 °C/W (junction-to-ambient) on a minimum-copper FR-4 board. Derating begins above +25 °C ambient, with full 270 mW power dissipation only valid at T_A ≤ +25 °C.

Can ADC143ZUQ-13 be used in non-automotive applications?

Yes-while AEC-Q101 qualified and PPAP-capable, its electrical specs (50 V V_CC, 100 mA I_C, −55 °C to +150 °C range) make it suitable for industrial, medical, and telecom applications where high reliability and wide temperature operation are required.

How does the built-in resistor network affect PCB layout?

The integrated 4.7 kΩ and 47 kΩ resistors eliminate need for four external components per channel, simplifying routing and reducing parasitic inductance. Layout must follow Diodes' recommended SOT363 pad dimensions (0.65 mm pitch, 0.25–0.40 mm lead length) to ensure thermal and mechanical reliability.

Is there a lead-free and RoHS-compliant version of this part?

Yes-ADC143ZUQ-13 is fully RoHS 3 compliant (2015/863/EU), lead-free, halogen-free, and antimony-free. It meets Diodes' "Green" definition: <900 ppm bromine, <900 ppm chlorine (<1500 ppm total Br+Cl), and <1000 ppm antimony compounds.