Diodes Incorporated DDTC114YCA-7-F

Overview

DDTC114YCA-7-F from Diodes Incorporated is an NPN pre-biased small-signal transistor in SOT23 package, featuring integrated bias resistors R1 = 10 kΩ and R2 = 47 kΩ (R1 ≠ R2), V_I(OFF) = 0.3 V, V_I(ON) = 1.3 V (at I_O = 1 mA), and DC current gain G_L = 68 at V_CE = 5 V, I_O = 5 mA. It serves as a logic-level interface switch in automotive body control modules.

For engineers reviewing the DDTC114YCA-7-F datasheet, DDTC114YCA-7-F pinout, DDTC114YCA-7-F application, or DDTC114YCA-7-F equivalent, key selection considerations include input voltage thresholds, resistor ratio tolerance (±20%), AEC-Q101 qualification, SOT23 thermal resistance (625 °C/W), and guaranteed I_O(OFF) ≤ 0.5 μA at V_CC = 50 V.

Technical Context

This device integrates two precision bias resistors (R1 = 10 kΩ, R2 = 47 kΩ) to configure a single-NPN transistor as a digital switch with defined turn-on/off thresholds. Its R1 ≠ R2 topology enables asymmetric input hysteresis and stable logic-level interfacing without external components.

Designed for automotive-grade reliability, it meets AEC-Q101 stress testing requirements and supports operation from −55 °C to +150 °C. The 200 mW power dissipation and 625 °C/W junction-to-ambient thermal resistance are validated on FR4 PCB with minimum recommended pad layout.

Key Specifications

Pinout & Package

Package: SOT23 - surface-mount plastic case, 0.008 g weight, UL 94V-0 rated, moisture sensitivity level 1 per J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DDTC123YCA-7-F and DDTC143ZCA-7-F, DDTC114YCA-7-F offers intermediate input threshold (1.3 V), tighter thermal performance margin due to lower R1/R2 ratio, and optimal balance between leakage suppression and logic compatibility for 3.3 V automotive domains.

Availability

DDTC114YCA-7-F is available at Aetrix Electronics and suitable for automotive body control units, industrial PLC input stages, and USB power management circuits requiring stable component supply and long-term lifecycle support.

Supply support for DDTC114YCA-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 computing markets.

This part belongs to the DDTC (R1 ≠ R2 Series) CA family, engineered specifically for simplified logic-level interfacing in space-constrained, thermally demanding environments where AEC-Q101 compliance is mandatory.

FAQ

What is the maximum collector current rating for DDTC114YCA-7-F?

The absolute maximum continuous collector current is 70 mA, as specified in the Absolute Maximum Ratings table. This value is validated under TA = +25°C with proper PCB thermal relief. Derating is required above +25°C ambient per the 625 °C/W RθJA specification, and peak pulsed current must not exceed 100 mA for durations ≤ 100 μs with duty cycle ≤ 1%.

Does DDTC114YCA-7-F require external bias resistors?

No. It integrates R1 = 10 kΩ and R2 = 47 kΩ internally, eliminating the need for external bias components. The R1 ≠ R2 configuration provides asymmetric input response and stable DC operating point without additional passive parts, reducing PCB area and assembly cost.

Is DDTC114YCA-7-F qualified for automotive applications?

Yes. It is fully AEC-Q101 qualified and marked "AEC-Q101" in ordering information. It undergoes stress testing including temperature cycling, high-accelerated stress test (HAST), and mechanical shock, and is PPAP capable per Diodes Incorporated's quality system.

What is the meaning of the "-7-F" suffix in DDTC114YCA-7-F?

The "-7-F" denotes tape-and-reel packaging: 7-inch reel diameter, 8 mm tape width, and 3,000 units per reel. The "F" indicates lead-free, halogen-free, and antimony-free "Green" compliance per Diodes Incorporated's definitions and EU RoHS directives.