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Diodes Incorporated DDA114YU-7

Part No.:
DDA114YU-7
Manufacturer:
Diodes Incorporated
Category:
Bipolar Transistor Arrays, Pre-Biased
Package:
-
Datasheet:
AetrixDDA114YU-7.pdf
Description:
TRANS 2PNP PREBIAS 0.2W SOT363
Quantity:
Payment:
Payment
Shipping:
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Inventory:637

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Product details

Overview

DDA114YU-7 from Diodes Incorporated is a PNP pre-biased dual transistor in SOT363 package, featuring integrated 10 kΩ and 47 kΩ bias resistors (R1/R2), −50 V VCBO, −70 mA IO, and −0.3 V VCE(sat) at IC/IB = −5 mA / −0.25 mA - used for compact logic-level interface and load switching in space-constrained industrial control modules.

For engineers reviewing the DDA114YU-7 datasheet, DDA114YU-7 pinout, DDA114YU-7 application, or DDA114YU-7 equivalent, this device supports high-reliability digital input conditioning, discrete-level translation, and low-power active-low driver functions where resistor-equipped dual-PNP topology reduces BOM count and layout area.

Technical Context

This dual PNP transistor integrates two identical emitter-coupled transistors with monolithic biasing networks - each channel includes a 10 kΩ input resistor (R1) and a 47 kΩ base-emitter pull-up resistor (R2), enabling direct TTL/CMOS-compatible input drive without external components. The R2/R1 ratio tolerance is ±20%, supporting consistent turn-on threshold across temperature.

Designed for operation from −50 V to +6 V input voltage range and rated for −70 mA output current per channel, it delivers stable saturation performance down to −55 °C and up to +150 °C, with thermal resistance RθJA = 625 °C/W on FR-4 PCBs using minimum recommended pad layout.

Key Specifications

Parameter Value and Actual Design Meaning
VCBO −50 V - maximum reverse collector-base voltage before breakdown; ensures robustness against transient overvoltage in industrial I/O lines.
IO −70 mA - guaranteed continuous output current per channel; sufficient for driving LEDs, small relays, or logic inputs.
VCE(sat) −0.3 V at IC/IB = −5 mA / −0.25 mA - low saturation voltage minimizes power loss and heat generation in switching applications.
R1 / R2 10 kΩ / 47 kΩ - factory-trimmed internal bias network eliminates need for external resistors and improves board density.
PD 200 mW - total package power dissipation limit; enables use in thermally constrained surface-mount designs without heatsinking.
TJ Range −55 °C to +150 °C - wide junction temperature range supports deployment in automotive under-hood and industrial motor-control environments.

Pinout & Package

Package: SOT363 - 6-pin, surface-mount, lead-free, halogen-free molded plastic package with 0.65 mm pitch, UL 94V-0 rating, and moisture sensitivity level 1.

Pin/Terminal Circuit Role Design Meaning
1 Emitter of Transistor 1 Common emitter node for first PNP channel; connects to load return path or ground reference.
2 Base of Transistor 1 Internally connected to R1 (10 kΩ) and R2 (47 kΩ); accepts logic-level input signal.
3 Collector of Transistor 1 Active-low output node; sinks current when transistor is saturated (e.g., drives LED cathode).
4 Collector of Transistor 2 Second independent active-low output node; electrically isolated from Channel 1.
5 Base of Transistor 2 Identical internal bias network as Pin 2; enables synchronous or independent dual-channel control.
6 Emitter of Transistor 2 Common emitter node for second PNP channel; may be tied to same or separate return path.

Key Features

Feature Design Value
Integrated R1/R2 bias network 10 kΩ input resistor + 47 kΩ base-emitter pull-up per channel - eliminates 4 external resistors per dual-channel design.
AEC-Q101 qualification Qualified for automotive applications with PPAP capability and IATF 16949 manufacturing - suitable for body electronics and infotainment I/O.
Green compound packaging Halogen- and antimony-free molding compound (<900 ppm Br/Cl, <1000 ppm Sb) - meets global environmental compliance mandates.
Low VCE(sat) at low drive current −0.3 V at IC/IB = −5 mA / −0.25 mA - enables efficient switching with minimal voltage headroom loss.

Applications

Industrial PLC Input Module Automotive Body Control Unit

Use Scenario: Isolating and conditioning 24 V DC field sensor signals into microcontroller GPIOs.

IC Role / Device Role / Timing Role: Dual-channel active-low level translator and current sink for dry-contact and voltage-input sensors.

Use Value: Reduces component count by integrating biasing resistors, improving reliability and reducing PCB footprint versus discrete transistor+resistor solutions.

Use Scenario: Driving LED status indicators and small solenoid valves in door module assemblies.

IC Role / Device Role / Timing Role: Dual PNP switch providing controlled current sinking for indicator loads with defined turn-on thresholds.

Use Value: AEC-Q101 qualification and −55 °C to +150 °C operation ensure functional integrity in harsh under-dash environments.

Consumer Appliance Control Board Medical Diagnostic Equipment Interface

Use Scenario: Managing push-button inputs and relay drivers in washing machine main control boards.

IC Role / Device Role / Timing Role: Logic-level interface IC converting mechanical switch closures into clean MCU-readable signals.

Use Value: Integrated 10 kΩ/47 kΩ resistor ratio provides stable input hysteresis and noise immunity without external tuning.

Use Scenario: Providing isolated, low-current switching for front-panel LED arrays and diagnostic test points.

IC Role / Device Role / Timing Role: Dual-channel discrete switch enabling safe, low-power indication without risk of backfeed or latch-up.

Use Value: Fully RoHS-compliant, halogen-free construction satisfies medical equipment material restrictions and end-of-life recycling requirements.

Equivalent & Alternatives

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

Alternative Part Technical Difference Application Difference Selection Advice
DDA124EU-7-F Equal R1/R2 = 22 kΩ/22 kΩ; lower gain (GL = 56) and −30 mA IO Optimized for higher-impedance logic interfaces; less suitable for >50 mA loads Select when matching legacy designs requiring symmetric biasing and reduced drive strength.
DDA123JU-7-F R1 = 2.2 kΩ, R2 = 47 kΩ; higher input current (−3.6 mA at VI = −5 V); −100 mA IO Better suited for fast-switching or high-current digital outputs needing stronger base drive Choose when driving heavier loads or requiring faster turn-on response with lower input impedance.

Compared with DDA124EU-7-F and DDA123JU-7-F, the DDA114YU-7 offers a balanced trade-off: moderate input current (−0.88 mA), asymmetric biasing for predictable threshold behavior, and −70 mA output capability - ideal for general-purpose industrial I/O where layout efficiency and thermal margin are prioritized.

Availability

DDA114YU-7 is available at Aetrix Electronics and suitable for industrial PLC input modules, automotive body control units, and consumer appliance control boards requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for DDA114YU-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 North America.

The DDA series belongs to Diodes' pre-biased transistor product line, engineered specifically for reducing bill-of-materials complexity and improving reliability in digital interface and load-switching applications across automotive, industrial, and consumer markets.

FAQ

What is the maximum operating temperature for DDA114YU-7?

The DDA114YU-7 has a specified junction temperature range of −55 °C to +150 °C. Its thermal resistance RθJA is 625 °C/W on FR-4 PCBs with minimum recommended pad layout, meaning it can sustain full-rated power dissipation only below ~80 °C ambient unless enhanced thermal design is implemented.

Can DDA114YU-7 replace a discrete PNP transistor plus two resistors?

Yes - DDA114YU-7 integrates one 10 kΩ resistor between input and base, and one 47 kΩ resistor between base and emitter per channel. It directly substitutes a discrete PNP (e.g., MMBT3906) with external R1/R2, reducing layout area, assembly steps, and parametric variation due to resistor tolerances.

Is DDA114YU-7 qualified for automotive use?

Yes - the automotive-grade variant DDA114YUQ-7-F is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. While DDA114YU-7-F is not explicitly marked as automotive-grade, its underlying die and SOT363 package meet the same process and reliability standards.

What does the 'Y' in DDA114YU signify?

The 'Y' in DDA114YU denotes the specific resistor combination: R1 = 10 kΩ and R2 = 47 kΩ. This coding follows Diodes' standardized nomenclature where 'Y' uniquely identifies that bias network configuration within the DDA family, distinguishing it from 'E' (22 kΩ/22 kΩ), 'J' (2.2 kΩ/47 kΩ), or 'U' (10 kΩ/10 kΩ).

DDA114YU-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:
-

DDA114YU-7 FAQ

1.How can I place an order for DDA114YU-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for DDA114YU-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 DDA114YU-7 reliable?

The price and inventory of DDA114YU-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDA114YU-7 is usually 5 days.

3.What payment methods are accepted for DDA114YU-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDA114YU-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DDA114YU-7?

DDA114YU-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DDA114YU-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 DDA114YU-7?

For technical support, including DDA114YU-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDA114YU-7 requirements.

6.How does Aetrix verify that DDA114YU-7 is sourced from the original manufacturer or authorized distributors?

All DDA114YU-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 DDA114YU-7 meets industry standards.

7.What is the process for return or replacement of DDA114YU-7?

All DDA114YU-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDA114YU-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 DDA114YU-7 part is unused and in its original packaging.

Return procedure for DDA114YU-7:

1.Submit a request within 90 days.

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

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