Diodes Incorporated DCX100NS-7

Overview

DCX100NS-7 from Diodes Incorporated is a dual pre-biased transistor array integrating one PNP and one NPN transistor in a single SOT-563 package, designed for point-of-load switching control. It delivers ±100 mA (PNP) / +50 mA (NPN) output current, features built-in bias resistors (R1=1 kΩ, R2=10 kΩ for PNP; R4=10 kΩ for NPN), and operates across –55°C to +150°C junction temperature. It is used in microcontroller-driven load switching circuits requiring discrete-level logic translation and low-power rail control.

For engineers reviewing the DCX100NS-7 datasheet, DCX100NS-7 pinout, DCX100NS-7 application, or DCX100NS-7 equivalent, this page provides verified technical context, validated pin functions, confirmed operating limits, and real-world use cases for embedded power sequencing, IO interface buffering, and dual-polarity signal conditioning.

Technical Context

The DCX100NS-7 implements two independent pre-biased transistors on a single die: Q1 is a PNP with integrated 1 kΩ base-emitter and 10 kΩ base-collector resistors, enabling direct TTL/CMOS-compatible turn-on at V_I(on) ≤ –3.0 V; Q2 is an NPN with 10 kΩ base-emitter resistor, supporting input voltage range of –10 V to +40 V and V_I(on) ≥ 1.85 V typical.

Both transistors share thermal coupling within the SOT-563 package but operate electrically isolated. The PNP supports –50 V V_CC, –100 mA I_C, and exhibits V_CE(SAT) ≤ 0.3 V at –20 mA; the NPN supports +50 V V_CC, +50 mA I_O, and V_CE(SAT) ≤ 0.3 V at +10 mA - enabling complementary high-side and low-side switching in compact space-constrained designs.

Key Specifications

Pinout & Package

SOT-563 package: 6-terminal surface-mount plastic case with matte tin-plated copper leadframe, UL 94V-0 rated, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NSVDU2A100DP6T1G and EMD2P100R, DCX100NS-7 uniquely integrates complementary PNP+NPN topology in one package, enabling true push-pull operation, bidirectional signal conditioning, and reduced interconnect inferences - critical for space-constrained industrial IO modules.

Availability

DCX100NS-7 is available at Aetrix Electronics and suitable for microcontroller load switching, sensor interface level shifting, and low-power display backlight control requiring stable component supply and long-term industrial lifecycle support.

Supply support for DCX100NS-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, specializing in high-reliability components for industrial, computing, and automotive markets.

The DCX100NS-7 belongs to Diodes' pre-biased transistor product line, engineered specifically for reducing design complexity in low-to-medium power switching applications where space, BOM count, and thermal performance are critical constraints.

FAQ

Is DCX100NS-7 still in active production?

No - DCX100NS-7 is officially obsolete per Diodes Incorporated's May 2021 datasheet revision. However, Aetrix Electronics maintains legacy inventory with full traceability and offers extended lifecycle support including last-time buy planning and cross-reference engineering assistance for migration paths.

Can DCX100NS-7 be used in automotive applications?

Yes - its –55°C to +150°C operating junction temperature range, AEC-Q200-untested but process-qualified epitaxial planar construction, and green halogen-free packaging meet baseline requirements for under-dash and engine-compartment-adjacent modules, though system-level qualification remains the customer's responsibility.

What is the maximum safe continuous current for Q1 and Q2 simultaneously?

Simultaneous operation is limited by total power dissipation: 150 mW max at 25°C ambient. With Q1 dissipating ~25 mW at –100 mA / 0.25 V_CE(SAT) and Q2 dissipating ~15 mW at +50 mA / 0.3 V_CE(SAT), combined operation remains within rating up to ~85°C ambient assuming standard FR-4 layout per AP02001.

Does DCX100NS-7 require external decoupling capacitors?

No - the device contains no internal regulators or oscillators; however, local 100 nF ceramic bypass capacitors are recommended at each V_CC pin (pins 1 and 4) when driving inductive loads or operating at >10 kHz switching frequencies to suppress transient-induced latch-up or false triggering.