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Diodes Incorporated DDA144EUQ-7-F
- Part No.:
- DDA144EUQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
DDA144EUQ-7-F.pdf
- Description:
- PREBIAS TRANSISTOR SOT363 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:2,158
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Product details
Overview
DDA144EUQ-7-F from Diodes Incorporated is a PNP pre-biased dual transistor in SOT363 package, featuring integrated 47kΩ base resistors (R1 = R2 = 47kΩ), −50V VCEO, −30mA IO, and AEC-Q101 qualification for automotive use. It functions as a compact, logic-compatible switch for low-power digital interface and signal routing in space-constrained PCBs.
For engineers reviewing the DDA144EUQ-7-F datasheet, DDA144EUQ-7-F pinout, DDA144EUQ-7-F application, or DDA144EUQ-7-F equivalent, this device is selected for its guaranteed input threshold (VIN(on) = −1.9V @ IO = −5mA), low saturation voltage (VCE(sat) ≤ −0.3V), and automotive-grade reliability with PPAP support and IATF 16949 manufacturing.
Technical Context
This dual PNP transistor integrates two identical pre-biased elements sharing common emitter connections per channel, enabling independent switching with minimal external components. Each channel includes matched 47kΩ bias resistors to ensure consistent turn-on behavior across temperature (−55°C to +150°C).
The device operates with negative-input logic compatibility: VIN(off) = −0.5V (max) at IO = −100µA and VIN(on) = −1.9V (typ) at VO = −0.3V, IO = −5mA. Its 200mW total power dissipation and 625°C/W θJA are specified for FR-4 board mounting with minimum pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50V - Maximum collector-emitter blocking voltage under open-base conditions; defines safe operating range in high-side switch configurations. |
| IO (max) | −30mA - Maximum continuous output current per channel; supports LED drivers, small-signal relays, and logic-level translators. |
| R1 / R2 | 47kΩ ±30% - Integrated base bias resistors eliminate external components; enables direct microcontroller GPIO drive without pull-up networks. |
| VCE(sat) | ≤ −0.3V @ IC/IB = −2.5mA/−0.25mA - Low saturation voltage minimizes conduction loss and self-heating in battery-powered systems. |
| PD (total) | 200mW - Total package power limit; requires thermal derating above +25°C ambient per Fig.1 curve (e.g., ~125mW at +85°C). |
| AEC-Q101 | Qualified - Validated for automotive applications including engine control modules, body electronics, and infotainment interfaces. |
Pinout & Package
Package: SOT363 - 6-pin, surface-mount plastic package with matte tin-plated leads, 0.006g weight, UL 94V-0 rated molding compound, and J-STD-020 Level 1 moisture sensitivity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base of Q1 | Input node for first PNP transistor; connects internally to 47kΩ resistor (R1) to emitter (pin 2). |
| 2 | Emitter of Q1 | Common emitter terminal for Q1; tied to internal R1 and R2; used as reference for input logic level. |
| 3 | Collector of Q1 | Output node for Q1; sinks up to −30mA when biased via pin 1; electrically isolated from Q2. |
| 4 | Collector of Q2 | Output node for second PNP transistor; independent of Q1; supports dual-channel load switching. |
| 5 | Emitter of Q2 | Common emitter terminal for Q2; tied to internal R1 and R2; shares same reference as Q1 emitter (pins 2 & 5 connected internally). |
| 6 | Base of Q2 | Input node for Q2; connects internally to 47kΩ resistor (R2) to emitter (pin 5); enables separate control of both transistors. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | Dual 47kΩ resistors eliminate need for external base resistors-reduces BOM count and PCB area in multi-channel logic interfaces. |
| AEC-Q101 qualification | Validated for automotive use with PPAP documentation and IATF 16949 manufacturing-enables direct deployment in ASIL-B compatible subsystems. |
| Green, RoHS-compliant construction | Halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb), lead-free, and fully RoHS 3 compliant-meets global environmental compliance mandates. |
| SOT363 footprint | Compact 2.15mm × 2.10mm outline with 0.65mm pitch-supports high-density routing and automated assembly on fine-pitch PCBs. |
Applications
| Automotive Body Control Module | Industrial PLC Input Interface |
|---|---|
|
Use Scenario: Driving discrete loads such as door lock actuators and interior lighting in vehicle body control units. IC Role / Device Role / Timing Role: Dual-channel PNP switch providing isolated, logic-level compatible sink paths for 12V loads. Use Value: Eliminates need for discrete base resistors and reduces component count by two per channel versus standard transistors. |
Use Scenario: Converting 24V industrial sensor signals to 3.3V/5V microcontroller inputs in programmable logic controllers. IC Role / Device Role / Timing Role: Level-shifting interface with built-in current limiting and ESD-tolerant inputs. Use Value: −1.9V VIN(on) ensures reliable activation from TTL/CMOS outputs while maintaining noise margin against supply ripple. |
| Consumer Appliance Control Board | Medical Diagnostic Instrument I/O |
|
Use Scenario: Controlling small solenoids and indicator LEDs on smart home appliance mainboards. IC Role / Device Role / Timing Role: Compact dual switch enabling independent actuation of two low-current peripherals from a single MCU port. Use Value: 200mW total power rating allows concurrent operation of both channels without thermal throttling in sealed enclosures. |
Use Scenario: Isolating patient-connected sensor signals from digital processing circuitry in portable diagnostic devices. IC Role / Device Role / Timing Role: Signal conditioning stage providing galvanic separation and fault-safe shutdown capability. Use Value: AEC-Q101 qualification and −55°C to +150°C operating range support extended reliability validation required for Class II medical equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar pre-biased PNP dual transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DDA144EU-7-F | Same electrical specs but non-Q version; lacks AEC-Q101 qualification and PPAP support. | Not approved for automotive production; suitable only for commercial-grade consumer or industrial prototypes. | Select when AEC-Q101 is not required and cost optimization is prioritized over automotive traceability. |
| DDC144EUQ-7-F | NPN complement with identical R1/R2 = 47kΩ, same SOT363 package, and matching AEC-Q101 qualification. | Used where active-high logic drive or sourcing (vs sinking) is needed; requires inverted control signal polarity. | Choose for complementary NPN functionality in dual-rail interface designs requiring matched biasing and qualification. |
Compared with DDA144EU-7-F, the Q-version adds automotive change control and PPAP readiness; compared with DDC144EUQ-7-F, it provides PNP sink topology essential for high-side referenced loads and negative logic compatibility.
Availability
DDA144EUQ-7-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input stages, consumer appliance control boards, and medical diagnostic instrument I/O requiring stable component supply and long-term lifecycle assurance.
Supply support for DDA144EUQ-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 Diodes' pre-biased transistor product line, engineered specifically for reducing design complexity in digital interface and load-switching applications where space, reliability, and qualification compliance are critical.
FAQ
What is the maximum allowable junction temperature for DDA144EUQ-7-F?
The absolute maximum junction temperature is +150°C, aligned with its −55°C to +150°C operating range. Derating begins at +25°C ambient: power dissipation must be reduced linearly to zero at +150°C, following the 625°C/W θJA specification on FR-4 board with minimum pad layout.
Can DDA144EUQ-7-F replace a standard PNP transistor like BC807-16 in existing designs?
Yes, but only if the application uses the internal 47kΩ bias network and does not require adjustable base current. Unlike BC807-16, DDA144EUQ-7-F has fixed biasing-no external resistors needed-but offers no flexibility for gain tuning or custom saturation control.
Is the SOT363 package of DDA144EUQ-7-F compatible with standard reflow profiles?
Yes-the device is rated for J-STD-020 Level 1 moisture sensitivity and supports standard Pb-free reflow profiles (peak 260°C). Its matte tin-plated leads meet MIL-STD-202 Method 208 solderability requirements, ensuring robust wetting and joint integrity.
Does DDA144EUQ-7-F support bidirectional signal switching?
No-it is a unidirectional PNP switch optimized for sinking current from a positive rail to ground. The internal diode structure and bias network prevent reverse conduction; it cannot function as a transmission gate or analog switch for AC signals.
DDA144EUQ-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- DDA (XXXX) U
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- 2 PNP - Pre-Biased (Dual)
- Current - Collector (Ic) (Max):
- 100mA
- Voltage - Collector Emitter Breakdown (Max):
- 50V
- Resistor - Base (R1):
- 47kOhms
- Resistor - Emitter Base (R2):
- 47kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 68 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 500nA (ICBO)
- Frequency - Transition:
- 250MHz
- Power - Max:
- 200mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
DDA144EUQ-7-F FAQ
1.How can I place an order for DDA144EUQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for DDA144EUQ-7-F 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 DDA144EUQ-7-F reliable?
The price and inventory of DDA144EUQ-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDA144EUQ-7-F is usually 5 days.
3.What payment methods are accepted for DDA144EUQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDA144EUQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDA144EUQ-7-F?
DDA144EUQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDA144EUQ-7-F 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 DDA144EUQ-7-F?
For technical support, including DDA144EUQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDA144EUQ-7-F requirements.
6.How does Aetrix verify that DDA144EUQ-7-F is sourced from the original manufacturer or authorized distributors?
All DDA144EUQ-7-F 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 DDA144EUQ-7-F meets industry standards.
7.What is the process for return or replacement of DDA144EUQ-7-F?
All DDA144EUQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DDA144EUQ-7-F, 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 DDA144EUQ-7-F part is unused and in its original packaging.
Return procedure for DDA144EUQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDA144EUQ-7-F Tags
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SMUN5311DW1T1G
onsemi
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UMH9NTN
Rohm Semiconductor
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PUMH13,115
Nexperia USA Inc.
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PUMD3-QX
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RN4987FE,LF(CT
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PUMD12,115
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PUMD9,115
Nexperia USA Inc.
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PUMH9,115
Nexperia USA Inc.
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PUMD3,115
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DCX114EU-7-F
Diodes Incorporated
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PUMD13,115
Nexperia USA Inc.
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