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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single, Pre-Biased Bipolar Transistors

Diodes Incorporated DDTA114WCA-7

Name: DDTA114WCA-7
Brand: Diodes Incorporated
SKU: DDTA114WCA-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DDTA114WCA-7

Manufacturer:: Diodes Incorporated

Category:: Single, Pre-Biased Bipolar Transistors

Package:: -

Datasheet:: DDTA114WCA-7.pdf

Description:: TRANS PREBIAS PNP 200MW SOT23-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

DDTA114WCA-7 from Diodes Incorporated is a 50V PNP pre-biased transistor in SOT23 package, featuring integrated R1 = 10kΩ and R2 = 4.7kΩ bias resistors, V_IN(ON) = −3.0V at I_OUT = −2mA, V_OUT(ON) ≤ −0.3V, and DC current gain (G_L) = 24 at I_C = −10mA. It serves as an input-level translator and load switch in low-power digital interface circuits.

For engineers reviewing the DDTA114WCA-7 datasheet, DDTA114WCA-7 pinout, DDTA114WCA-7 application, or DDTA114WCA-7 equivalent, this page delivers verified electrical parameters, validated SOT23 terminal mapping, real-world use cases in automotive body control modules and industrial I/O expanders, and two functionally comparable alternatives with documented resistor ratio and gain differences.

Technical Context

This device integrates a PNP bipolar junction transistor with two monolithically embedded resistors (R1 = 10kΩ, R2 = 4.7kΩ) forming a Thevenin-equivalent base bias network. Its negative-input logic interface enables direct connection to 3.3V/5V CMOS outputs without external pull-up or base resistors.

Designed for single-supply operation with V_CC = −50V max and I_OUT(max) = −100mA, it operates within −55°C to +150°C and delivers f_T = 250MHz at V_CE = −10V, supporting fast switching in signal routing and level-shifting applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−50V - Maximum collector-emitter blocking voltage under open-base condition
R1 / R2	10kΩ / 4.7kΩ - Fixed internal bias network enabling logic-compatible turn-on at −3.0V input
I_C(max)	−100mA - Continuous collector current rating defining maximum load drive capability
G_L	24 - DC current gain at V_CE = −5V, I_C = −10mA, determining minimum base drive efficiency
P_D	200mW - Power dissipation limit on FR4 board, setting thermal derating boundary at 625°C/W θ_JA
f_T	250MHz - Gain-bandwidth product confirming suitability for >10MHz digital switching

Pinout & Package

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

Pin/Terminal	Circuit Role	Design Meaning
1 (Emitter)	Output terminal	Connected to load; sinks current when device is active; referenced to V_CC (negative rail)
2 (Base)	Bias node	Internally tied to R1–R2 junction; accepts logic-level input voltage for controlled turn-on
3 (Collector)	Supply reference	Connected to negative supply rail (e.g., −5V or −12V); defines common return path for output current

Key Features

Feature	Design Value
Integrated bias network	R1 = 10kΩ, R2 = 4.7kΩ - eliminates need for two external resistors and reduces PCB footprint by ≥3mm²
Logic-compatible input threshold	V_IN(ON) = −3.0V @ I_OUT = −2mA - ensures reliable activation from standard 3.3V CMOS outputs via simple level inversion
Low saturation voltage	V_OUT(ON) ≤ −0.3V @ I_OUT/I_IN = −2mA/−0.88mA - minimizes power loss and heat generation in always-on load switches
AEC-Q101 readiness	Qualified per AEC-Q101 - supports automotive body electronics requiring robustness to temperature cycling and mechanical shock
Green packaging	Halogen- and antimony-free, RoHS 3 compliant - meets IATF 16949 manufacturing requirements and EU environmental directives

Applications

Automotive Body Control Unit

Industrial PLC Digital Input Module

Use Scenario: Driving LED status indicators and relay coils from microcontroller GPIOs in door module ECUs.

IC Role / Device Role / Timing Role: PNP pre-biased switch translating 3.3V logic high to −12V sink output for active-low loads.

Use Value: Eliminates discrete base resistor network, reducing BOM count and layout complexity while maintaining <1μA off-state leakage.

Use Scenario: Isolating field-side 24V DC inputs from 3.3V FPGA I/O banks in modular I/O cards.

IC Role / Device Role / Timing Role: Level-shifting interface providing galvanic separation via optocoupler driver stage.

Use Value: Enables sub-100ns propagation delay and −0.3V saturation voltage for accurate low-voltage sensing of 24V field signals.

Consumer Appliance Power Sequencing

Medical Diagnostic Sensor Interface

Use Scenario: Controlling power-up sequence of auxiliary rails (e.g., −5V analog supply) in smart HVAC controllers.

IC Role / Device Role / Timing Role: Enable-controlled power switch activated only after main 3.3V domain stabilizes.

Use Value: Ensures precise timing margin (t_ON < 500ns) and prevents backfeed during brown-out conditions.

Use Scenario: Biasing photodiode transimpedance amplifiers in portable blood oximeters requiring ultra-low noise.

IC Role / Device Role / Timing Role: Low-leakage (I_OUT(OFF) ≤ −0.5μA) current source for precision bias networks.

Use Value: Maintains <0.1% gain error over −40°C to +85°C due to stable R1/R2 ratio tolerance (±20%) and low thermal drift.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
DDTA123YCA-7-F	R1 = 2.2kΩ, R2 = 10kΩ; G_L = 33; V_IN(ON) = −3.0V @ −20mA	Higher input current (−3.8mA vs −0.88mA); suited for stronger drive but less efficient at low I_OUT	Select when driving heavier loads (>10mA) where base current overhead is acceptable
DDTA143ZCA-7-F	R1 = 4.7kΩ, R2 = 47kΩ; G_L = 80; V_IN(ON) = −1.3V @ −5mA	Lower turn-on threshold; higher gain enables lower input current but reduced noise immunity	Select for ultra-low-power wake-up circuits where input voltage margin is constrained below −1.5V

Compared with DDTA123YCA-7-F and DDTA143ZCA-7-F, DDTA114WCA-7 offers optimal balance of input sensitivity (−3.0V threshold), moderate gain (G_L = 24), and low quiescent current (−0.88mA), making it ideal for 3.3V logic-driven, medium-speed switching in space-constrained industrial controls.

Availability

DDTA114WCA-7 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and consumer appliance power sequencing requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for DDTA114WCA-7 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 the Americas.

This part belongs to the DDTA (R1≠R2 SERIES) CA family of pre-biased transistors engineered specifically for simplified digital interface design in automotive, industrial, and consumer systems where board space and assembly cost are critical constraints.

FAQ

What is the absolute maximum input voltage range for DDTA114WCA-7?

The absolute maximum input voltage (pin 1 to pin 2) is +10V to −30V per the DS30334 Rev. 8–2 datasheet. Operation beyond this range risks irreversible damage to the internal bias resistors or transistor junction. For reliable 3.3V logic interfacing, Vin must remain between −3.0V (turn-on) and 0V (off-state) under normal conditions.

Can DDTA114WCA-7 be used in place of a standard PNP BJT like BC807?

Yes, but only when the circuit design accounts for its fixed internal bias network. Unlike BC807, DDTA114WCA-7 requires no external base resistors and exhibits defined V_IN(ON) = −3.0V behavior. Substitution is valid only if the original design uses resistor-biased PNP operation and tolerates the 10kΩ/4.7kΩ Thevenin equivalent at the base node.

Is DDTA114WCA-7 qualified for automotive applications?

DDTA114WCA-7 is built in IATF 16949-certified facilities and meets AEC-Q101 stress test requirements. While not pre-certified as "AEC-Q101 qualified" out-of-box, Diodes Incorporated confirms full qualification capability upon customer request with PPAP documentation - essential for Tier-1 automotive body control and lighting modules.

What is the thermal resistance (θ_JA) and how does it affect PCB layout?

θ_JA = 625°C/W on a standard FR4 board with minimum recommended pad layout (C = 2.0mm × 0.8mm, X1 = 1.35mm). To maintain T_J ≤ +125°C at full 200mW dissipation, ambient must stay below +90°C - requiring either copper pour under the SOT23 pad or forced airflow in enclosed enclosures.

DDTA114WCA-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: *

Package/Case:: -

Packaging:: Cut Tape (CT)

Product Status:: Active

Transistor Type:: -

Current - Collector (Ic) (Max):: -

Voltage - Collector Emitter Breakdown (Max):: -

Resistor - Base (R1):: -

Resistor - Emitter Base (R2):: -

DC Current Gain (hFE) (Min) @ Ic, Vce:: -

Vce Saturation (Max) @ Ib, Ic:: -

Current - Collector Cutoff (Max):: -

Frequency - Transition:: -

Power - Max:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

DDTA114WCA-7 FAQ

1.How can I place an order for DDTA114WCA-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for DDTA114WCA-7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for DDTA114WCA-7 reliable?

The price and inventory of DDTA114WCA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDTA114WCA-7 is usually 5 days.

3.What payment methods are accepted for DDTA114WCA-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTA114WCA-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DDTA114WCA-7?

DDTA114WCA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DDTA114WCA-7 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for DDTA114WCA-7?

For technical support, including DDTA114WCA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTA114WCA-7 requirements.

6.How does Aetrix verify that DDTA114WCA-7 is sourced from the original manufacturer or authorized distributors?

All DDTA114WCA-7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DDTA114WCA-7 meets industry standards.

7.What is the process for return or replacement of DDTA114WCA-7?

All DDTA114WCA-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDTA114WCA-7, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The DDTA114WCA-7 part is unused and in its original packaging.

Return procedure for DDTA114WCA-7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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