Diodes Incorporated DDTA114GKA-7-F

Overview

DDTA114GKA-7-F from Diodes Incorporated is a PNP pre-biased small-signal transistor with built-in 10 kΩ bias resistor (R2 only), SC-59 package, V_CEO = −50 V, I_C(max) = −100 mA, and h_FE = 30 at I_C = −5 mA, used in discrete logic-level switching and level-shifting circuits.

For engineers reviewing the DDTA114GKA-7-F datasheet, DDTA114GKA-7-F pinout, DDTA114GKA-7-F application, or DDTA114GKA-7-F equivalent, key selection criteria include R2-only biasing topology, guaranteed h_FE minimum, SC-59 thermal performance (R_θJA = 625 °C/W), and −50 V breakdown ratings for robust low-voltage interface protection.

Technical Context

This device implements an epitaxial planar PNP transistor with a single integrated base-emitter bias resistor (R2), eliminating external bias components in saturated-switch configurations. It operates with V_EB(max) = −5 V and delivers V_CE(sat) ≤ −0.3 V at I_C = −10 mA / I_B = −0.5 mA.

The SC-59 package supports surface-mount assembly with lead-free matte tin plating and meets J-STD-020D Level 1 moisture sensitivity. Its f_T = 250 MHz enables stable operation in low-frequency digital switching and signal conditioning up to ~10 MHz.

Key Specifications

Pinout & Package

Package: SC-59 - surface-mount, 3-pin plastic molded case (UL 94V-0), 0.008 g weight, lead-free matte tin finish over copper leadframe.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DDTA114YKA-7-F, this part offers lower h_FE for more predictable saturation current control; versus NSVD114GWT1G, it trades smaller size for better thermal performance (SC-59 vs. SC-70), making it preferable in thermally demanding environments.

Availability

DDTA114GKA-7-F is available at Aetrix Electronics and suitable for LED driver switches, microcontroller interfaces, and power rail enable circuits requiring stable component supply, consistent R2 tolerance, and guaranteed h_FE performance.

Supply support for DDTA114GKA-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, specializing in high-reliability, industry-standard components for power management, signal integrity, and interface applications.

This part belongs to the DDTA R2-ONLY SERIES KA product line, designed specifically for simplified PNP switching in cost-sensitive, high-volume consumer and industrial control applications where integrated biasing reduces design complexity.

FAQ

What is the purpose of the R2-only biasing configuration?

The R2-only configuration integrates a single 10 kΩ resistor between base and emitter, enabling direct GPIO or logic-level control of the PNP transistor without external bias components. This reduces component count, improves layout density, and ensures repeatable turn-on characteristics across temperature and process variation.

Can DDTA114GKA-7-F replace a standard PNP transistor like BC807?

Yes, but only in saturated-switch applications where the internal R2 resistor aligns with the required base drive. Unlike BC807, it lacks a base connection for external bias tuning, so it cannot be used in linear amplifier or variable-current source roles without circuit redesign.

Is the SC-59 package compatible with automated reflow soldering?

Yes - the SC-59 package meets J-STD-020D Level 1 moisture sensitivity and is qualified for standard lead-free reflow profiles (peak 260 °C). Its matte tin finish ensures reliable wetting, and the UL 94V-0 molding compound withstands repeated thermal cycling without delamination.

How does the −50 V V_CEO rating impact system-level reliability?

The −50 V V_CEO rating provides 10× headroom above typical 3.3 V/5 V rail voltages, preventing avalanche breakdown during ESD events, inductive kickback, or bus contention. This margin directly enhances long-term reliability in noisy industrial or automotive subsystems without requiring additional clamping components.