Diodes Incorporated DDC114TU-7-F

Overview

DDC114TU-7-F from Diodes Incorporated is an NPN pre-biased dual small-signal transistor in SOT363 package, featuring integrated 10 kΩ input bias resistor (R1 only), 50 V collector-emitter breakdown voltage (BV_CEO), 100 mA output current rating, and DC current gain (h_FE) of 100–600 at I_C = 1 mA, V_CE = 5 V. It is used for level-shifting and digital switching in compact logic interface circuits.

For engineers reviewing the DDC114TU-7-F datasheet, DDC114TU-7-F pinout, DDC114TU-7-F application, or DDC114TU-7-F equivalent, key selection criteria include its R1-only bias configuration, SOT363 dual-transistor layout, guaranteed V_CE(sat) ≤ 0.3 V at I_C/I_B = 10 mA/1 mA, and AEC-Q101 qualification for automotive signal conditioning.

Technical Context

This device integrates two identical NPN transistors with a single built-in 10 kΩ base bias resistor per channel-no external R1/R2 network required. Each channel operates independently with isolated emitter, base, and collector terminals, enabling dual-channel logic buffering or parallel load driving.

It supports rail-to-rail input operation up to +5 V with VI(off) ≤ 0.5 V and VI(on) ≥ 1.9 V at VO = 0.3 V, IO = 10 mA, and delivers low saturation voltage (V_CE(sat) ≤ 0.3 V) under defined drive conditions, making it suitable for 3.3 V/5 V TTL and CMOS-compatible digital interfacing.

Key Specifications

Pinout & Package

Package: SOT363 - 6-pin, dual-transistor surface-mount package with 0.65 mm lead pitch, 2.15 mm × 2.10 mm body, and 0.95 mm height; RoHS-compliant matte tin-plated leads, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DDC114EU-7-F, DDC114TU-7-F reduces input current by ~40% and simplifies bias design with R1-only topology, while DDC113TU-7-F trades efficiency for speed-making DDC114TU the optimal balance for general-purpose 3.3 V/5 V logic interfacing.

Availability

DDC114TU-7-F is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC output stages, consumer appliance UI interfaces, and IoT sensor signal conditioning requiring stable component supply and AEC-Q101 compliance.

Supply support for DDC114TU-7-F 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.

This part belongs to Diodes' DDC pre-biased transistor family, engineered specifically for reducing component count and improving reliability in digital interface, load-switching, and automotive signal-conditioning applications.

FAQ

What is the maximum operating temperature for DDC114TU-7-F?

The DDC114TU-7-F is rated for junction and storage temperatures from –55°C to +150°C. Its thermal resistance (R_θJA) is 625°C/W on FR-4 PCB with minimum recommended pad layout, allowing full 200 mW power dissipation only below +75°C ambient; derating is required above that per Figure 1 in DS30345 Rev. 20–2.

Does DDC114TU-7-F require external bias resistors?

No. DDC114TU-7-F integrates a single 10 kΩ resistor (R1) between each base and its corresponding input pin (IN1/IN2), eliminating the need for external base resistors. This R1-only configuration simplifies PCB layout and ensures consistent turn-on behavior across temperature and process variation.

Is DDC114TU-7-F pin-compatible with other SOT363 pre-biased transistors?

Yes-DDC114TU-7-F shares the standard SOT363 pinout (COM1–IN1–OUT1–OUT2–IN2–COM2) with all DDC/ADC series dual pre-biased transistors from Diodes Incorporated, including DDC114EU-7-F and DDC113TU-7-F, enabling drop-in replacement where bias topology and electrical specs align.

How does the AEC-Q101 qualification impact design use cases?

AEC-Q101 qualification confirms DDC114TU-7-F has passed stress tests for automotive-grade reliability-including HTOL, temperature cycling, and ESD-making it suitable for non-safety-critical automotive systems like interior lighting, HVAC controls, and infotainment I/O. It does not imply ASIL certification or functional safety compliance.