Diodes Incorporated DDTA114YCA-7-F

Overview

DDTA114YCA-7-F from Diodes Incorporated is a 50V PNP pre-biased transistor in SOT23 package, featuring integrated R1=10kΩ and R2=47kΩ bias resistors. It delivers DC current gain (h_FE) of 68 at I_C = −10mA, V_CE = −5V, with V_OUT(ON) ≤ −0.3V and I_OUT = −1mA. Used for digital logic-level switching in low-power interface circuits.

For engineers reviewing the DDTA114YCA-7-F datasheet, DDTA114YCA-7-F pinout, DDTA114YCA-7-F application, or DDTA114YCA-7-F equivalent, key selection criteria include input voltage threshold (−1.4V), output saturation voltage, resistor ratio tolerance (±20%), thermal resistance (625°C/W), and automotive-grade qualification status.

Technical Context

This device integrates two precision biasing resistors (R1=10kΩ, R2=47kΩ) on a single epitaxial planar PNP die to eliminate external base resistors. Its internal resistor ratio enables predictable turn-on behavior with Vin(on) = −1.4V at I_OUT = −1mA and V_OUT = −0.3V.

Designed for surface-mount automated assembly, it operates across −55°C to +150°C with 200mW power dissipation on FR4 PCB. The SOT23 package supports high-density board layouts while maintaining thermal performance via 625°C/W junction-to-ambient resistance.

Key Specifications

Pinout & Package

Package: SOT23 - Surface-mount plastic package with 3-pin configuration, 0.008g weight, UL 94V-0 rated molding compound, and matte tin-plated leads solderable per MIL-STD-202.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DDTA114WCA-7-F, this part offers higher DC gain and tighter output saturation, better suited for low-current logic interfacing; versus DDTC114YCA-7-F, it provides true high-side switching without signal inversion or layout redesign.

Availability

DDTA114YCA-7-F is available at Aetrix Electronics and suitable for LED indicator drivers, microcontroller GPIO expanders, and industrial sensor interfaces requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for DDTA114YCA-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 the DDTA (R1≠R2 SERIES) CA family of pre-biased transistors, engineered specifically for space-constrained, high-reliability digital interface applications where simplified BOM and robust thermal performance are critical.

FAQ

What is the maximum allowable input voltage for DDTA114YCA-7-F?

The absolute maximum input voltage (Vin) is specified as +5V to −40V relative to the base terminal. This range ensures safe operation when interfacing with 3.3V or 5V logic families while tolerating negative transients up to −40V, making it suitable for industrial environments with potential ground bounce or ESD events.

Does DDTA114YCA-7-F meet AEC-Q101 requirements for automotive use?

While DDTA114YCA-7-F is manufactured in IATF 16949-certified facilities and uses automotive-grade materials (halogen-free, RoHS 3 compliant), it is not explicitly qualified to AEC-Q101. Customers requiring automotive qualification must contact Diodes Incorporated directly to confirm PPAP readiness and change control compliance for specific applications.

How does the internal resistor ratio affect switching behavior?

The R1/R2 ratio of 10kΩ/47kΩ sets the base bias current division, resulting in a −1.4V input threshold at I_OUT = −1mA. This fixed ratio ensures consistent turn-on voltage across production lots, eliminating variability introduced by discrete resistor tolerances and layout parasitics in traditional BJT implementations.

Can DDTA114YCA-7-F replace a standard PNP transistor like BC807 in existing designs?

It can replace discrete PNP transistors in logic-level switching roles, but requires pinout adaptation (SOT23 E/B/C vs. BC807's E/C/B) and removal of external base resistors. The integrated bias network simplifies layout but fixes the drive ratio-designers must verify that −1.4V Vin(on) and 68 h_FE meet system timing and current requirements before substitution.