Diodes Incorporated DDTB113EC-7-F

Overview

DDTB113EC-7-F from Diodes Incorporated is a PNP pre-biased transistor in SOT23 package, featuring integrated 1 kΩ base-emitter and base-collector bias resistors. It delivers DC current gain (h_FE) of 33–39 at I_C = −50 mA, V_CE = −5 V, supports −500 mA output current, −50 V collector-base breakdown voltage, and operates across −55 °C to +150 °C for automotive signal switching applications.

For engineers reviewing the DDTB113EC-7-F datasheet, DDTB113EC-7-F pinout, DDTB113EC-7-F application, or DDTB113EC-7-F equivalent, key selection criteria include verified input voltage thresholds (V_I(OFF) = −0.5 V, V_I(ON) = −3.0 V), guaranteed saturation voltage (V_CE(SAT) = −0.3 V @ I_C = −50 mA), and AEC-Q101 qualification status for under-hood control circuits.

Technical Context

This device integrates two precision 1 kΩ resistors to configure a fixed-current bias network for PNP transistor operation, eliminating external components in digital logic interface and level-shifting circuits. Its −3.0 V turn-on threshold and −0.5 V turn-off threshold enable reliable switching with standard CMOS/TTL logic levels driving the input terminal.

The SOT23 package provides thermal resistance of 625 °C/W on FR4 PCBs, supporting continuous 200 mW power dissipation. With f_T = 200 MHz and BVCBO = −50 V, it maintains stable gain and breakdown integrity in high-speed, high-voltage industrial sensor interfaces.

Key Specifications

Pinout & Package

Package: SOT23 - surface-mount plastic package with matte tin-plated leads, moisture sensitivity level 1, weight ≈ 0.008 g, UL 94V-0 rated molding compound.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DDTB113EC-7-F, DDTB113ZC-7-F trades lower base current for reduced gain stability, while DDTB123YC-7-F sacrifices some current drive capability for enhanced noise margin-both require revalidation of V_CE(SAT) and switching speed in target layouts.

Availability

DDTB113EC-7-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial programmable logic controllers, and dashboard display backlight systems requiring stable component supply and long-term lifecycle support.

Supply support for DDTB113EC-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 DDTB series targets cost-sensitive, high-reliability discrete switching applications in automotive and industrial markets, emphasizing integrated biasing, AEC-Q101 qualification, and green packaging compliance.

FAQ

Is DDTB113EC-7-F AEC-Q101 qualified?

Yes, DDTB113EC-7-F is AEC-Q101 qualified for automotive applications. Diodes Incorporated confirms qualification per AEC-Q101 Rev D, including stress tests for temperature cycling, high-temperature reverse bias, and unbiased highly accelerated stress testing. Full qualification reports are available upon request through authorized Diodes representatives.

What is the marking code for DDTB113EC-7-F on the SOT23 package?

The top-side marking for DDTB113EC-7-F is "P60", followed by a two-character date code (e.g., "K7" for July 2020). The "P60" identifier is unique to this part number and appears adjacent to the cathode band indicator on the SOT23 body, per Diodes' standard SOT23 marking convention in DS30385.

Can DDTB113EC-7-F replace a discrete PNP transistor plus two resistors?

Yes-DDTB113EC-7-F directly replaces a discrete PNP transistor (e.g., MMBT3906) plus two 1 kΩ bias resistors. Its internal resistor values match typical base bias networks for logic-driven switching, reducing PCB area by ~3.5 mm² and eliminating resistor placement and solder joint reliability concerns in high-vibration environments.

What is the maximum operating frequency for PWM switching with DDTB113EC-7-F?

DDTB113EC-7-F supports PWM switching up to 100 kHz with minimal distortion, based on its 200 MHz f_T and measured turn-on/turn-off times of 120 ns/150 ns at I_C = −50 mA. For >50 kHz operation, ensure layout minimizes parasitic capacitance at the collector node and use a 0.1 μF ceramic decoupling capacitor near the SOT23 pad.