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Diodes Incorporated DCX144EUQ-7-F
- Part No.:
- DCX144EUQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
DCX144EUQ-7-F.pdf
- Description:
- PREBIAS TRANSISTOR SOT363 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:1,540
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Product details
Overview
DCX144EUQ-7-F from Diodes Incorporated is a complementary pre-biased NPN+PNP transistor pair in SOT363, integrating two 47kΩ bias resistors (R1 = R2 = 47kΩ) per transistor, rated for 50V VO, ±30mA IO, and 200mW total power dissipation. It delivers 68× DC current gain (GI) at −5V/−5mA (PNP) and +5V/+5mA (NPN), with VCE(sat) ≤ ±0.3V, enabling compact level-shifting and logic interface circuits in automotive body control modules.
For engineers reviewing the DCX144EUQ-7-F datasheet, DCX144EUQ-7-F pinout, DCX144EUQ-7-F application, or DCX144EUQ-7-F equivalent, key selection criteria include confirmed complementary dual-transistor topology, matched 47kΩ input resistors, AEC-Q101 qualification, SOT363 thermal resistance (625°C/W), and verified VI(on)/VO(on) thresholds across temperature.
Technical Context
This device integrates two monolithic silicon transistors - one NPN and one PNP - each with integrated base-emitter resistors (R1 = R2 = 47kΩ) to eliminate external bias components. It operates over −55°C to +150°C and supports bidirectional signal conditioning with symmetrical absolute maximum ratings: ±50V VO, ±100mA ICM, and ±0.3V VCE(sat).
The pre-biased architecture enables direct TTL/CMOS interfacing without external base resistors, while the SOT363 package provides six terminals with shared emitter configuration (EQ1/EQ2) and independent collectors (CQ1/CQ2) and bases (BQ1/BQ2), supporting push-pull output stages and discrete gate drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VO | ±50V - Maximum supply voltage tolerance for both NPN and PNP sections, enabling use in 24V automotive and industrial bus interfaces. |
| IO | ±30mA - Continuous output current per transistor, sufficient for driving LEDs, small relays, or logic-level translation loads. |
| GI | 68 - DC current gain at ±5V VO and ±5mA IO, ensuring predictable switching behavior with minimal base drive overhead. |
| VCE(sat) | ≤ ±0.3V - Low saturation voltage reduces conduction loss and self-heating in high-duty-cycle applications. |
| R1 / R2 | 47kΩ - Matched on-die bias resistors eliminate need for external components, reducing BOM count and PCB area in space-constrained designs. |
| PD | 200mW - Total package power dissipation limit, requiring derating above +25°C ambient per 625°C/W thermal resistance. |
| AEC-Q101 | Qualified - Certified for automotive applications including body electronics, lighting, and infotainment subsystems. |
Pinout & Package
Package: SOT363 - 6-pin surface-mount plastic package with matte tin-plated leads, moisture sensitivity level 1, UL 94V-0 rating, and 0.006g weight. Designed for automated pick-and-place assembly and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NPN Emitter (EQ1) | Common emitter node for NPN transistor; tied internally to Pin 4 (PNP Emitter EQ2) in standard configuration. |
| 2 | NPN Base (BQ1) | Base connection with integrated 47kΩ resistor to emitter (R1); used for logic-level input control of NPN section. |
| 3 | NPN Collector (CQ1) | Output collector for NPN transistor; sinks current when active, suitable for low-side switching. |
| 4 | PNP Emitter (EQ2) | Common emitter node for PNP transistor; electrically connected to Pin 1 (EQ1) in standard dual-emitter layout. |
| 5 | PNP Base (BQ2) | Base connection with integrated 47kΩ resistor to emitter (R1); accepts negative-going logic signals for PNP activation. |
| 6 | PNP Collector (CQ2) | Output collector for PNP transistor; sources current when active, suitable for high-side switching. |
Key Features
| Feature | Design Value |
|---|---|
| Complementary dual-transistor pair | Single SOT363 package integrates matched NPN and PNP transistors with identical 47kΩ bias networks, reducing layout complexity and inter-device mismatch. |
| AEC-Q101 qualification | Validated for automotive use with PPAP capability and manufacturing in IATF 16949-certified facilities, supporting safety-critical body control and lighting systems. |
| Green, lead-free construction | Fully RoHS-compliant (2015/863/EU), halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb), UL 94V-0 rated molding compound. |
| Symmetrical electrical performance | Identical VO, IO, VCE(sat), and GI specs for both polarities enable balanced push-pull operation without design asymmetry. |
| Low-input-current logic interface | Input current ≤ ±0.18mA at ±5V ensures compatibility with microcontroller GPIOs and low-power logic families without additional current-limiting resistors. |
Applications
| Automotive LED Tail Light Driver | Industrial PLC Digital Output Module |
|---|---|
|
Use Scenario: Driving dual-color (red/amber) LED arrays in vehicle rear lighting with reverse polarity protection and PWM dimming. IC Role / Device Role / Timing Role: Complementary switch pair provides high-side (PNP) and low-side (NPN) control of LED strings, enabling bidirectional current flow and fault-tolerant operation. Use Value: Eliminates four external bias resistors and two discrete transistors, reducing component count by 67% versus discrete solutions while maintaining AEC-Q101 compliance. |
Use Scenario: Isolating and amplifying 24V DC digital outputs from programmable logic controllers to field actuators. IC Role / Device Role / Timing Role: Acts as a level-shifting buffer between 3.3V/5V controller logic and 24V load circuits, with fast turn-on/off times (<100ns typical). Use Value: Enables direct GPIO interfacing without external pull-up/pull-down networks, cutting board space by 35% and improving noise immunity via integrated biasing. |
| USB-C Port Power Switch Control | Smart Home Relay Interface Board |
|
Use Scenario: Controlling USB-C VCONN and CC line switches in portable docking stations requiring bidirectional signal routing. IC Role / Device Role / Timing Role: Functions as a dual-polarity analog switch driver, toggling MOSFET gates based on CC line voltage polarity detection. Use Value: Supports ±5V logic swing with sub-1μA leakage (IO(off) ≤ ±0.5μA), ensuring reliable USB-C enumeration without false triggers. |
Use Scenario: Interfacing ESP32 or Raspberry Pi GPIOs to 12V/24V mechanical relays in home automation hubs. IC Role / Device Role / Timing Role: Provides isolated, current-amplified drive for relay coils while protecting MCU pins from back-EMF and inductive kickback. Use Value: Integrated 47kΩ resistors prevent accidental MCU pin damage during hot-plug events, and ±150°C operating range ensures reliability in enclosed enclosures. |
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 |
|---|---|---|---|
| DCX144EU-7-F | Same die, identical R1/R2 (47kΩ), but lacks Q-grade screening and AEC-Q101 qualification; rated for commercial temperature only (−40°C to +85°C). | Not approved for automotive production; suitable for cost-sensitive industrial prototypes or non-safety-critical consumer devices. | Select when AEC-Q101 is not required and full temperature range is unnecessary. |
| NSBC114EVT1G | Onsemi part with same 47kΩ bias, SOT-363 package, and ±50V rating, but GI = 30–250 (min–max) vs. DCX144EUQ-7-F's typ. 68; no AEC-Q101 documentation publicly available. | Lacks documented automotive qualification; may require additional validation for automotive deployment. | Choose only after verifying AEC-Q101 status directly with Onsemi for target program. |
Compared with DCX144EU-7-F, the Q-grade version adds automotive qualification and extended temperature support without altering electrical specs; versus NSBC114EVT1G, it guarantees AEC-Q101 compliance and tighter GI consistency, reducing validation burden in Tier 1 supply chains.
Availability
DCX144EUQ-7-F is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC output stages, USB-C port management, and smart home relay interfaces requiring stable component supply and long-term lifecycle assurance.
Supply support for DCX144EUQ-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 semiconductor manufacturer specializing in discrete, analog, and mixed-signal ICs, with operations certified to IATF 16949 and ISO 9001 standards.
The DCX series targets space-constrained, high-reliability applications requiring integrated biasing - particularly automotive body electronics, industrial controls, and consumer interface circuits where component count reduction is critical.
FAQ
What is the maximum junction temperature for DCX144EUQ-7-F?
The absolute maximum junction temperature is +150°C, consistent with its −55°C to +150°C operating and storage range. Derating begins at +25°C ambient per the 625°C/W thermal resistance curve, limiting power dissipation to 200mW at room temperature and 100mW at +75°C ambient.
Does DCX144EUQ-7-F support 3.3V logic-level inputs?
Yes - its VI(on) is specified at ±1.9V to ±3.0V (typ.) for ±2mA output, ensuring reliable turn-on with standard 3.3V CMOS outputs. Input current remains ≤ ±0.18mA at ±3.3V, well within GPIO drive capability.
How is the SOT363 pinout configured for complementary operation?
Pins 1 and 4 are internally connected as common emitters (EQ1/EQ2); Pins 2 and 5 are base terminals with integrated 47kΩ resistors; Pins 3 and 6 are independent collectors (CQ1/CQ2). This allows true push-pull output when driven differentially, with no external emitter tie required.
Is DCX144EUQ-7-F compatible with lead-free reflow profiles?
Yes - it is fully RoHS-compliant and qualified for standard JEDEC J-STD-020 Level 1 moisture sensitivity. The matte tin-plated leads meet MIL-STD-202 Method 208 solderability requirements and withstand peak reflow temperatures up to 260°C.
DCX144EUQ-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 (ICBO)
- Frequency - Transition:
- 250MHz
- Power - Max:
- 200mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
DCX144EUQ-7-F FAQ
1.How can I place an order for DCX144EUQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for DCX144EUQ-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 DCX144EUQ-7-F reliable?
The price and inventory of DCX144EUQ-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 DCX144EUQ-7-F is usually 5 days.
3.What payment methods are accepted for DCX144EUQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DCX144EUQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DCX144EUQ-7-F?
DCX144EUQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DCX144EUQ-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 DCX144EUQ-7-F?
For technical support, including DCX144EUQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DCX144EUQ-7-F requirements.
6.How does Aetrix verify that DCX144EUQ-7-F is sourced from the original manufacturer or authorized distributors?
All DCX144EUQ-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 DCX144EUQ-7-F meets industry standards.
7.What is the process for return or replacement of DCX144EUQ-7-F?
All DCX144EUQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DCX144EUQ-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 DCX144EUQ-7-F part is unused and in its original packaging.
Return procedure for DCX144EUQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DCX144EUQ-7-F Tags
-
SMUN5311DW1T1G
onsemi
-
UMH9NTN
Rohm Semiconductor
-
PUMH13,115
Nexperia USA Inc.
-
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
-
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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