Diodes Incorporated DDTA114GE-7-F

Overview

DDTA114GE-7-F from Diodes Incorporated is a PNP pre-biased small-signal transistor with integrated 10 kΩ base-emitter bias resistor (R2 only), housed in an SOT523 package. It delivers V_CEO = −50 V, I_C(max) = −100 mA, V_CE(sat) = −0.3 V at I_C = −10 mA/I_B = −0.5 mA, and h_FE = 30–100 (typ. 60) at I_C = −5 mA/V_CE = −5 V. It is AEC-Q101 qualified and used in automotive LED load switching and discrete logic interface circuits.

For engineers reviewing the DDTA114GE-7-F datasheet, DDTA114GE-7-F pinout, DDTA114GE-7-F application, or DDTA114GE-7-F equivalent, key selection criteria include its R2-only bias topology, −50 V breakdown ratings, SOT523 thermal performance (R_θJA = 833 °C/W), and AEC-Q101 qualification for under-hood signal conditioning.

Technical Context

This device implements a single PNP bipolar junction transistor with a monolithically integrated 10 kΩ base-emitter pull-up resistor (R2), eliminating external bias components. Its R2-only configuration supports fixed-current sink operation without base drive circuitry, simplifying level-shifting and open-collector output interfacing.

The SOT523 package enables high-density placement in space-constrained automotive modules. With V_CEO = −50 V and I_C(max) = −100 mA, it operates reliably across −55 °C to +150 °C ambient, meeting AEC-Q101 stress test requirements for temperature cycling, HTRB, and ESD.

Key Specifications

Pinout & Package

Package: SOT523 - ultra-small surface-mount plastic case (1.60 × 1.60 × 0.75 mm), RoHS-compliant, halogen-free, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DDTA114GE-7-F, DDTA114YU-7-F offers superior thermal resistance in a larger package, while NSV11201MT1G trades AEC-Q101 compliance for higher current capacity-making each suitable for distinct thermal, space, and qualification constraints.

Availability

DDTA114GE-7-F is available at Aetrix Electronics and suitable for automotive lighting control, industrial pushbutton interfaces, and engine sensor signal conditioning requiring stable component supply and AEC-Q101 assurance.

Supply support for DDTA114GE-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 components for automotive, industrial, and consumer markets.

The DDTA R2-only series targets cost-sensitive, space-constrained discrete logic and interface functions in automotive electronics, emphasizing AEC-Q101 compliance, green packaging, and simplified bias design.

FAQ

What is the function of the R2-only bias configuration in DDTA114GE-7-F?

The R2-only configuration integrates a single 10 kΩ resistor between base and emitter, enabling direct logic-level control without external bias components. This simplifies circuit design for digital switching applications where the transistor acts as a current sink, and eliminates resistor matching errors common in dual-resistor (R1+R2) pre-biased topologies.

Can DDTA114GE-7-F replace a standard PNP BJT in existing designs?

Yes, but only if the original design uses base biasing and can accommodate the fixed 10 kΩ R2 network. It cannot substitute for BJTs requiring adjustable base current or dual-resistor bias networks. Layout must be updated for SOT523 footprint, and saturation voltage and gain should be verified against the target operating point.

Is DDTA114GE-7-F suitable for 5 V logic interfacing?

Yes. With V_EB(on) ≈ 0.7 V and R2 = 10 kΩ, applying 5 V to the base (with emitter at V_CC) yields ~0.43 mA base current, sufficient to saturate the transistor at up to ~50 mA collector current. The device's −50 V V_CEO and −5 V V_EBO ensure safe operation across 5 V systems with margin.

Does DDTA114GE-7-F require heatsinking in typical applications?

No. At 100 mA I_C and −0.3 V V_CE(sat), power dissipation is 30 mW-well below the 150 mW rating. With R_θJA = 833 °C/W, this results in only ~25 °C junction-to-ambient rise on FR4 with minimum pads. Heatsinking is unnecessary unless ambient exceeds 100 °C or continuous I_C > 80 mA is required.