Diodes Incorporated DCX114YH-7

Overview

DCX114YH-7 from Diodes Incorporated is a complementary NPN/PNP pre-biased small-signal transistor pair in SOT563 package, featuring integrated 10kΩ and 47kΩ bias resistors (R1/R2), ±50V V_CEO, ±100mA I_O output capability, and −55°C to +150°C operating range. It functions as a dual-channel level-shifting switch in compact logic interface circuits.

For engineers reviewing the DCX114YH-7 datasheet, DCX114YH-7 pinout, DCX114YH-7 application, or DCX114YH-7 equivalent, key selection criteria include input voltage thresholds (V_I(OFF) = ±0.3V, V_I(ON) = ±1.4V), output saturation voltage (V_O(ON) = ±0.1V), current gain (G_L = 68), and thermal resistance (R_θJA = 833°C/W) for PCB-constrained designs.

Technical Context

This device integrates matched NPN and PNP transistors with monolithic bias networks-R1 = 10kΩ, R2 = 47kΩ-enabling single-input control of complementary switching without external resistors. It supports bidirectional logic-level translation between 3.3V/5V domains and delivers rail-to-rail output swing under ±100mA load.

The SOT563 package provides six terminals with shared emitter configuration (NPN emitter tied to PNP emitter), allowing push-pull output stages or H-bridge half-driver functionality. Thermal performance is defined for FR-4 boards using Diodes' recommended pad layout, with 150mW total power dissipation limit.

Key Specifications

Pinout & Package

SOT563 is a 6-pin ultra-small surface-mount package (1.6mm × 1.2mm × 0.6mm) with gull-wing leads, matte tin-plated copper leadframe, and UL 94V-0 green molding compound. Moisture sensitivity level is J-STD-020 Level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DCX114EH-7 and DCX143EH-7, DCX114YH-7 offers optimized input threshold (±1.4V) and higher current gain (68) for 3.3V logic compatibility, making it superior for mixed-voltage IoT and automotive body electronics where drive strength and noise immunity are jointly critical.

Availability

DCX114YH-7 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, USB-C port power switching, and automotive body control units requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for DCX114YH-7 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 centers across Asia and manufacturing in China, Taiwan, and the U.S.

The DCX series targets space-constrained digital interface applications, delivering integrated bias networks and complementary transistor pairs to replace up to eight discrete components in logic-level translation, load switching, and signal conditioning circuits.

FAQ

What is the maximum continuous output current per channel?

The DCX114YH-7 supports ±100mA continuous output current per channel (NPN and PNP) at T_A = +25°C, derating linearly to zero at +150°C per the 150mW power limit and 833°C/W thermal resistance. This rating applies under V_CE(SAT) ≤ ±0.1V conditions with proper PCB copper area per Diodes' SOT563 pad layout.

Does this device require external bias resistors?

No. The DCX114YH-7 integrates R1 = 10kΩ and R2 = 47kΩ on-die bias resistors connected to both transistor bases, eliminating the need for external resistors. This configuration sets V_I(ON) = ±1.4V and ensures stable turn-on behavior across temperature without additional components.

Can DCX114YH-7 operate in a common-emitter configuration?

Yes. Pins 3 and 4 form a shared emitter node, enabling true common-emitter operation for both NPN and PNP sections. This allows push-pull output stages, H-bridge half-drivers, and bidirectional level shifters without external connection modifications.

Is the SOT563 package compatible with standard reflow profiles?

Yes. The SOT563 package uses matte tin annealed leadframe and complies with J-STD-020 moisture sensitivity Level 1, permitting exposure to ambient indefinitely. It supports standard Pb-free reflow profiles (peak 260°C, 30 sec max) per Diodes' packaging guidelines and UL 94V-0 flammability rating.