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Diodes Incorporated DDC144EU-7-F
- Part No.:
- DDC144EU-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
DDC144EU-7-F.pdf
- Description:
- TRANS 2NPN PREBIAS 0.2W SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:8,311
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Product details
Overview
DDC144EU-7-F from Diodes Incorporated is an NPN pre-biased dual small-signal transistor in SOT363 package, featuring integrated 47 kΩ base bias resistors (R1 = R2 = 47 kΩ), 50 V VCEO, 30 mA continuous output current per channel, and AEC-Q101 qualification for automotive use. It replaces discrete transistor-resistor combinations in digital logic interface and level-shifting circuits.
For engineers reviewing the DDC144EU-7-F datasheet, DDC144EU-7-F pinout, DDC144EU-7-F application, or DDC144EU-7-F equivalent, key selection criteria include input voltage thresholds (VI(on) = 1.9 V at IO = 5 mA), low saturation voltage (VCE(sat) ≤ 0.3 V), dual-channel integration, and automotive-grade reliability under -55 °C to +150 °C operation.
Technical Context
This dual NPN transistor integrates matched biasing networks per channel-each with two 47 kΩ resistors-to eliminate external base resistors in switching applications. It operates as a digitally controlled switch with defined VI(on)/VI(off) thresholds and guaranteed DC current gain (GI = 68 typ at VO = 5 V, IO = 5 mA).
The device uses epitaxial planar die construction in a thermally optimized SOT363 package (RθJA = 625 °C/W), supports 200 mW total power dissipation (150 mW per element max), and meets J-STD-020 moisture sensitivity Level 1 for reflow compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; enables use in 24 V industrial and 12 V automotive supply rails. |
| IO (per channel) | 30 mA - Continuous output current rating; sufficient for driving LEDs, small relays, or logic inputs without external buffering. |
| R1 / R2 | 47 kΩ - Integrated base bias resistors; eliminates two external components per channel and ensures consistent turn-on behavior. |
| VCE(sat) | ≤ 0.3 V - Low saturation voltage at IC/IB = 2.5 mA/0.25 mA; minimizes power loss and heat generation in high-duty-cycle switching. |
| GI | 68 (typ) - DC current gain at VO = 5 V, IO = 5 mA; provides predictable current amplification for reliable digital switching margins. |
| PD | 200 mW - Total package power dissipation limit; requires thermal pad layout per Diodes' recommended footprint for sustained operation. |
| TJ | -55 °C to +150 °C - Junction temperature range; supports under-hood automotive and industrial control environments. |
Pinout & Package
Package: SOT363 - 6-pin, surface-mount, lead-free, halogen-free molded plastic package (UL 94V-0 rated); 0.006 g weight; moisture sensitivity Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (C1) | Collector of Transistor 1 | Primary current output node for first NPN channel; connects to load (e.g., LED anode or relay coil). |
| 2 (B1) | Base of Transistor 1 | Internally connected to R1 and R2 network; accepts digital input signal (e.g., MCU GPIO) to enable switching. |
| 3 (E1) | Emitter of Transistor 1 | Common emitter connection for channel 1; tied to ground or reference potential in low-side switch configuration. |
| 4 (E2) | Emitter of Transistor 2 | Common emitter for second NPN channel; electrically isolated from E1 but same potential in typical dual-low-side layout. |
| 5 (B2) | Base of Transistor 2 | Input node for second channel; identical biasing network as B1, enabling independent digital control of both transistors. |
| 6 (C2) | Collector of Transistor 2 | Second output node; supports dual-load drive (e.g., two separate indicator LEDs or sensor enable lines) in one footprint. |
Key Features
| Feature | Design Value |
|---|---|
| Dual NPN with matched R1/R2 | Two independent 47 kΩ bias networks ensure consistent VI(on) and timing across channels without component matching. |
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and body electronics requiring PPAP and IATF 16949 traceability. |
| Green, RoHS-compliant packaging | Molded plastic with <900 ppm Br, <900 ppm Cl, <1000 ppm Sb; meets EU Directive 2015/863/EU and Diodes' "Green" definition. |
| SOT363 thermal performance | 625 °C/W junction-to-ambient resistance with standard FR-4 pad layout; supports 30 mA/channel at ambient up to +85 °C. |
Applications
| Automotive Body Control Module | Industrial PLC I/O Expansion |
|---|---|
Use Scenario: Driving multiple LED status indicators and small solenoid valves in door module PCBs. IC Role / Device Role / Timing Role: Dual low-side switch replacing discrete BJT + resistor pairs; each channel independently controlled by MCU GPIO. Use Value: Reduces BOM count by four passive components per channel and improves board-level reliability via monolithic bias matching. | Use Scenario: Interfacing 24 V field sensors to 3.3 V microcontroller inputs in modular I/O cards. IC Role / Device Role / Timing Role: Level-shifting buffer with defined VI(on) = 1.9 V and VI(off) = 0.5 V; provides noise-immune digital input conditioning. Use Value: Eliminates need for external pull-up/pull-down resistors and Schmitt-trigger buffers while maintaining fast edge response (fT = 250 MHz). |
| Consumer Appliance Control Board | Medical Diagnostic Instrument Fan Control |
Use Scenario: Controlling bi-color LED feedback and buzzer activation in smart oven control panels. IC Role / Device Role / Timing Role: Dual-channel switch enabling simultaneous or alternating actuation of visual/audio outputs. Use Value: Enables compact 2 × 2 mm PCB area savings versus discrete solutions and supports reflow-compatible assembly. | Use Scenario: PWM-controlled cooling fan drivers in portable ultrasound units requiring low EMI and thermal stability. IC Role / Device Role / Timing Role: Constant-current switch operating at 25 kHz PWM frequency with VCE(sat) ≤ 0.3 V to minimize audible noise and self-heating. Use Value: Maintains fan speed accuracy across -20 °C to +70 °C ambient due to stable hFE and integrated bias network. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual NPN pre-biased transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DDC124EU-7-F | R1 = R2 = 22 kΩ (lower input impedance); VI(on) = 1.9 V same, but higher II = 0.23 mA at VI = 5 V. | Better suited for higher-speed switching where lower base drive resistance reduces turn-on delay. | Select when driving from weak-sourcing logic or requiring faster edge response; verify MCU GPIO current capability. |
| DDC114YU-7-F | Asymmetric bias: R1 = 10 kΩ, R2 = 47 kΩ; VI(on) = 1.9 V, but VI(off) = 0.3 V (lower noise immunity). | Optimized for low-voltage logic interfaces (e.g., 1.8 V systems) with tighter VI threshold spread. | Choose for mixed-voltage systems needing asymmetric hysteresis; avoid in noisy 12 V automotive harness environments. |
Compared with DDC124EU-7-F and DDC114YU-7-F, the DDC144EU-7-F offers balanced 47 kΩ biasing ideal for 3.3 V/5 V MCU interfacing with robust noise margin (VI(off) = 0.5 V), making it optimal for general-purpose dual-switching where consistency and thermal stability outweigh speed or ultra-low-voltage operation.
Availability
DDC144EU-7-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and consumer appliance control boards requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for DDC144EU-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.
The DDC series targets cost-sensitive, space-constrained digital switching applications; its pre-biased dual-transistor architecture was designed to reduce bill-of-materials count and improve manufacturing yield in high-volume consumer and automotive electronics.
FAQ
What is the maximum safe operating voltage for DDC144EU-7-F?
The absolute maximum collector-emitter voltage (VCEO) is 50 V, and the maximum input voltage (VI) is +40 V. Operation above 50 V between C1–E1 or C2–E2 risks permanent breakdown. For 24 V systems, derating is not required; for 48 V telecom rails, external clamping is mandatory.
Can DDC144EU-7-F be used in linear amplifier mode?
No - this device is optimized for saturated switching, not linear amplification. Its specified hFE and fT values apply only under switching conditions (VCE ≤ 0.3 V). The integrated bias resistors prevent stable DC bias point setup required for analog gain stages.
Is thermal pad connection required for full power rating?
Yes - the 200 mW total power rating assumes mounting on FR-4 with Diodes' recommended SOT363 pad layout (including thermal relief and solder mask defined pads). Without proper copper area, RθJA degrades significantly, limiting usable current to ~15 mA/channel at +85 °C ambient.
Does DDC144EU-7-F support 1.8 V logic input levels?
No - its VI(on) is specified at 1.9 V (min 1.4 V) with IO = 5 mA, making it incompatible with reliable 1.8 V CMOS logic. For 1.8 V systems, DDC114YU-7-F (VI(on) = 1.9 V, VI(off) = 0.3 V) or DDC143XU-7 (VI(on) = 1.4 V) are better matched alternatives.
DDC144EU-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- 2 NPN - 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
- Frequency - Transition:
- 250MHz
- Power - Max:
- 200mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
DDC144EU-7-F FAQ
1.How can I place an order for DDC144EU-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for DDC144EU-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 DDC144EU-7-F reliable?
The price and inventory of DDC144EU-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 DDC144EU-7-F is usually 5 days.
3.What payment methods are accepted for DDC144EU-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDC144EU-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDC144EU-7-F?
DDC144EU-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDC144EU-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 DDC144EU-7-F?
For technical support, including DDC144EU-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDC144EU-7-F requirements.
6.How does Aetrix verify that DDC144EU-7-F is sourced from the original manufacturer or authorized distributors?
All DDC144EU-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 DDC144EU-7-F meets industry standards.
7.What is the process for return or replacement of DDC144EU-7-F?
All DDC144EU-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DDC144EU-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 DDC144EU-7-F part is unused and in its original packaging.
Return procedure for DDC144EU-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDC144EU-7-F Tags
-
SMUN5311DW1T1G
onsemi
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UMH9NTN
Rohm Semiconductor
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PUMH13,115
Nexperia USA Inc.
-
PUMD3-QX
Nexperia USA Inc.
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PUMD2,115
Nexperia USA Inc.
-
RN4987FE,LF(CT
Toshiba Semiconductor and Storage
-
PUMD12,115
Nexperia USA Inc.
-
PUMD9,115
Nexperia USA Inc.
-
PUMH9,115
Nexperia USA Inc.
-
PUMD3,115
Nexperia USA Inc.
-
DCX114EU-7-F
Diodes Incorporated
-
PUMD13,115
Nexperia USA Inc.
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