Diodes Incorporated DDC114TUQ-7-F

Overview

DDC114TUQ-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), 50 V V_CEO, 100 mA continuous output current per channel, and AEC-Q101 qualification for automotive use in level-shift and digital logic interface circuits.

For engineers reviewing the DDC114TUQ-7-F datasheet, DDC114TUQ-7-F pinout, DDC114TUQ-7-F application, or DDC114TUQ-7-F equivalent, key selection criteria include input voltage threshold (V_I(on) = 1.9 V @ I_O = 5 mA), output saturation voltage (V_CE(sat) ≤ 0.3 V), DC current gain (h_FE = 100–600), and automotive-grade reliability under IATF 16949 manufacturing.

Technical Context

This dual NPN transistor integrates monolithic biasing resistors to eliminate external base resistors in digital switching applications. Each channel operates independently with common-emitter configuration, supporting TTL/CMOS-level input drive and 50 V maximum collector-base voltage.

The device uses epitaxial planar die construction and is rated for –55 °C to +150 °C operating temperature, with thermal resistance R_θJA = 625 °C/W on FR-4 PCB - enabling compact placement in space-constrained automotive control modules and industrial sensor interfaces.

Key Specifications

Pinout & Package

Package: SOT363 - 6-pin, surface-mount, green molded plastic housing with matte tin-plated leads; moisture sensitivity level 1 per J-STD-020; UL 94V-0 flammability rating.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DDC114TU-7-F, the Q-grade variant adds automotive qualification without electrical trade-offs; NSVD114TUT1G offers alternate sourcing but sacrifices voltage headroom and automotive compliance - making DDC114TUQ-7-F the sole choice for AEC-Q101–mandated 24 V systems.

Availability

DDC114TUQ-7-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial programmable logic controllers, and USB-C power delivery interface designs requiring stable component supply and full AEC-Q101 traceability.

Supply support for DDC114TUQ-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.

The DDC series targets automotive and industrial digital interface applications, delivering pre-biased transistor solutions that reduce system-level component count while meeting stringent reliability and environmental compliance standards.

FAQ

What is the maximum allowable input voltage at the base terminal (pin 2 or 5) for DDC114TUQ-7-F?

The absolute maximum input voltage is –5 V to +40 V per the datasheet's VI specification. However, for reliable switching operation, the recommended input range is 0 V to 5 V with V_I(on) = 1.9 V (typical) to ensure saturation. Exceeding +5 V risks exceeding the 10 kΩ R1 power rating and may cause long-term parametric drift.

Can DDC114TUQ-7-F be used in parallel configurations to increase current handling?

No - the device is not characterized for paralleling. Mismatched h_FE and V_CE(sat) between channels or units can cause current imbalance, leading to thermal runaway. For higher current, use a single-channel higher-rated device like DDC143ZUQ-7-F (100 mA, 47 kΩ R1/R2) or discrete transistor solutions with matched pairs.

Is the SOT363 package of DDC114TUQ-7-F compatible with standard reflow profiles for lead-free assembly?

Yes - the device is fully RoHS-compliant and rated for moisture sensitivity level 1 (MSL-1), meaning it can be stored indefinitely at ≤30 °C/60% RH and processed using standard IPC/JEDEC J-STD-020D lead-free reflow profiles (peak 260 °C). No baking is required prior to assembly.

Does DDC114TUQ-7-F support bidirectional signal translation between 3.3 V and 5 V logic families?

No - it functions only as a unidirectional low-side switch. The internal R1 resistor connects base to input, and emitter is grounded; it cannot pass signals from collector to base. For bidirectional level translation, use dedicated ICs such as TXB0104 or discrete MOSFET-based translators.