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Diodes Incorporated DCX144EU-7-F
- Part No.:
- DCX144EU-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
DCX144EU-7-F.pdf
- Description:
- TRANS PREBIAS NPN/PNP SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:5,867
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Product details
Overview
DCX144EU-7-F from Diodes Incorporated is a complementary pre-biased NPN+PNP transistor pair in SOT363 package, featuring 47kΩ base resistors (R1 = R2), 50V VO, ±30mA continuous output current per channel, and AEC-Q101 qualification for automotive signal switching applications such as LED driver bias control and microcontroller I/O level translation.
For engineers reviewing the DCX144EU-7-F datasheet, DCX144EU-7-F pinout, DCX144EU-7-F application, or DCX144EU-7-F equivalent, key selection criteria include input voltage thresholds (VI(on) = ±1.9–3.0V), output saturation voltage (VO(on) ≤ ±0.3V), DC current gain (GI = 68), thermal resistance (RθJA = 625°C/W), and SOT363 footprint compatibility with high-density PCB layouts.
Technical Context
This dual-transistor device integrates matched NPN and PNP silicon transistors with integrated 47kΩ bias resistors on each base terminal, enabling direct logic-level drive without external base resistors. It supports bidirectional signal conditioning in push-pull configurations and operates across –55°C to +150°C ambient temperature.
The device delivers symmetrical electrical behavior: ±50V supply voltage rating, ±30mA output current capability per section, ±0.3V saturation voltage at specified IC/IB, and 68 DC current gain (GI) at VO = ±5V and IO = ±5mA - all verified under standard test conditions per DS30347 Rev. 24.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VO | ±50V - Maximum supply voltage tolerance for both NPN and PNP sections, supporting rail-to-rail operation in 24V/48V industrial and automotive systems. |
| IO | ±30mA - Continuous output current per transistor, sufficient for driving small-signal loads like optocoupler LEDs or logic gate inputs. |
| VO(on) | ≤ ±0.3V - Low saturation voltage ensures minimal power loss and compatible interfacing with 3.3V/5V CMOS/TTL logic families. |
| GI | 68 - DC current gain at VO = ±5V, IO = ±5mA, enabling predictable current amplification in linear and switching modes. |
| R1, R2 | 47kΩ - Integrated base bias resistors eliminate need for external components, reducing BOM count and PCB area in discrete logic interface designs. |
| PD | 200mW - Total package power dissipation limit, derated linearly above +25°C ambient per 625°C/W thermal resistance. |
| VI(on) | ±1.9–3.0V - Input turn-on voltage range at defined IO and VO, ensuring reliable activation from standard microcontroller GPIOs. |
Pinout & Package
Package: SOT363 - 6-pin surface-mount plastic package with 0.65mm lead pitch, UL 94V-0 rated molding compound, matte tin-plated terminals, and moisture sensitivity level 1 (J-STD-020).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (BQ2) | PNP Base Terminal | Input node for PNP transistor; connected internally to 47kΩ resistor R1, enabling direct logic-level control of PNP switch. |
| 2 (BQ1) | NPN Base Terminal | Input node for NPN transistor; connected internally to 47kΩ resistor R1, enabling direct logic-level control of NPN switch. |
| 3 (CQ1) | NPN Collector | Output node for NPN transistor; used as active-low sink or high-side switch depending on configuration. |
| 4 (CQ2) | PNP Collector | Output node for PNP transistor; used as active-high source or low-side switch depending on configuration. |
| 5 (EQ2) | PNP Emitter | Common emitter connection for PNP section; typically tied to VCC in high-side switching applications. |
| 6 (EQ1) | NPN Emitter | Common emitter connection for NPN section; typically tied to GND in low-side switching applications. |
Key Features
| Feature | Design Value |
|---|---|
| Complementary NPN+PNP pair | Single SOT363 package integrates matched bipolar transistors for push-pull or H-bridge driver stages without external matching. |
| AEC-Q101 qualified | Validated for automotive applications including body electronics and infotainment subsystems requiring PPAP documentation and IATF 16949 manufacturing. |
| Integrated 47kΩ bias resistors | Eliminates two external resistors per channel, reducing component count, layout complexity, and risk of solder joint failure in automated assembly. |
| Green, RoHS-compliant construction | Halogen- and antimony-free molding compound (<900ppm Br/Cl, <1000ppm Sb), fully compliant with EU Directive 2015/863/EU (RoHS 3). |
| Symmetrical ±50V/±30mA ratings | Enables identical design rules for both polarities, simplifying schematic capture, PCB routing, and firmware logic for bidirectional control. |
Applications
| Automotive LED Tail Light Control | Industrial PLC Digital Output Module |
|---|---|
Use Scenario: Driving dual-color LED arrays in vehicle rear lighting with reverse polarity protection and PWM dimming. IC Role / Device Role / Timing Role: Complementary switch providing independent NPN sink and PNP source paths for red/amber LED strings. Use Value: Eliminates discrete resistor networks while maintaining AEC-Q101 compliance and thermal stability up to +125°C junction temperature. |
Use Scenario: Isolating microcontroller GPIOs from 24V industrial field devices using optocoupler input stages. IC Role / Device Role / Timing Role: Level-shifting interface translating 3.3V logic signals to 24V open-collector outputs with fast turn-on (tON < 100ns typical). Use Value: Reduces board space by 40% versus discrete transistor + resistor solutions and improves reliability via monolithic construction. |
| Consumer Appliance Motor Driver Interface | Medical Diagnostic Equipment Signal Conditioning |
Use Scenario: Controlling small brushed DC motors in smart home appliances using half-H-bridge topology. IC Role / Device Role / Timing Role: Dual-channel switch enabling direction control via complementary NPN/PNP outputs with shared emitter reference. Use Value: Supports 50V supply headroom for back-EMF suppression and maintains <0.3V saturation voltage at 30mA load for efficient power delivery. |
Use Scenario: Buffering analog sensor signals in portable diagnostic tools where EMI immunity and low leakage are critical. IC Role / Device Role / Timing Role: Low-leakage (<0.5μA) switching element for multiplexed sensor channel selection and signal path isolation. Use Value: Enables <100pF output capacitance and <0.5μA cutoff current, preserving signal integrity in high-impedance biomedical front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar complementary pre-biased transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DCX124EU-7-F | 22kΩ base resistors instead of 47kΩ; higher input current (0.36mA vs. 0.18mA at VI = ±5V); same VO, IO, and package. | Better suited for lower-voltage logic families (e.g., 1.8V/2.5V MCUs) requiring stronger base drive; less suitable for high-impedance interfaces. | Select when driving from weak-output controllers or needing faster switching due to lower R1/R2. |
| DCX114YU-7-F | Asymmetric bias (R1 = 10kΩ, R2 = 47kΩ); higher PNP output current (±70mA); different marking code (C14). | Optimized for unidirectional high-current sourcing (e.g., relay drivers) paired with low-current sinking, not true complementary symmetry. | Choose only if asymmetric drive requirements exist - not a drop-in replacement for balanced NPN+PNP operation. |
Compared with DCX124EU-7-F and DCX114YU-7-F, DCX144EU-7-F provides optimal balance of input impedance, thermal performance, and symmetrical drive strength for general-purpose logic interfacing where moderate base current and matched channel behavior are required.
Availability
DCX144EU-7-F is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC output modules, consumer appliance motor interfaces, and medical diagnostic equipment requiring stable component supply and long-term lifecycle support.
Supply support for DCX144EU-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 with ISO/TS 16949 and ISO 9001 certifications.
The DCX series targets cost-sensitive, space-constrained applications requiring integrated biasing in compact packages, with design emphasis on AEC-Q101 compliance, thermal robustness, and automated assembly compatibility.
FAQ
What is the maximum operating temperature for DCX144EU-7-F?
The device supports an operating junction temperature range of –55°C to +150°C. Its thermal resistance is 625°C/W (junction-to-ambient), so at 200mW total dissipation and +25°C ambient, junction temperature reaches +175°C - exceeding rating. Derating per Figure 1 is mandatory; maximum ambient must be ≤ +125°C for full-power operation.
Can DCX144EU-7-F replace discrete transistors and resistors in existing designs?
Yes - it replaces one NPN, one PNP, and four external base resistors (two per transistor) in standard pre-biased configurations. Pin compatibility with SOT363 footprint allows direct PCB substitution, but verify layout clearance for 0.65mm pitch and ensure thermal pad design matches Diodes' recommended SOT363 land pattern.
Is DCX144EU-7-F suitable for PWM-driven LED applications?
Yes - its ±30mA output current, <100ns typical switching times, and ±0.3V saturation voltage enable efficient PWM dimming of indicator LEDs and small display backlights. Ensure gate drive rise/fall times exceed 100ns to avoid shoot-through in push-pull configurations.
Does DCX144EU-7-F require external decoupling capacitors?
No dedicated decoupling is required for basic switching, but a 100nF ceramic capacitor between VCC and GND near the SOT363 footprint is recommended for noise suppression in noisy automotive or industrial environments, especially when driving inductive loads.
DCX144EU-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:
- 1 NPN, 1 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
- Frequency - Transition:
- 250MHz
- Power - Max:
- 200mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
DCX144EU-7-F FAQ
1.How can I place an order for DCX144EU-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for DCX144EU-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 DCX144EU-7-F reliable?
The price and inventory of DCX144EU-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 DCX144EU-7-F is usually 5 days.
3.What payment methods are accepted for DCX144EU-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DCX144EU-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DCX144EU-7-F?
DCX144EU-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DCX144EU-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 DCX144EU-7-F?
For technical support, including DCX144EU-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DCX144EU-7-F requirements.
6.How does Aetrix verify that DCX144EU-7-F is sourced from the original manufacturer or authorized distributors?
All DCX144EU-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 DCX144EU-7-F meets industry standards.
7.What is the process for return or replacement of DCX144EU-7-F?
All DCX144EU-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DCX144EU-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 DCX144EU-7-F part is unused and in its original packaging.
Return procedure for DCX144EU-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DCX144EU-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
Nexperia USA Inc.
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PUMD2,115
Nexperia USA Inc.
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RN4987FE,LF(CT
Toshiba Semiconductor and Storage
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PUMD12,115
Nexperia USA Inc.
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PUMD9,115
Nexperia USA Inc.
-
PUMH9,115
Nexperia USA Inc.
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PUMD3,115
Nexperia USA Inc.
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DCX114EU-7-F
Diodes Incorporated
-
PUMD13,115
Nexperia USA Inc.
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