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Diodes Incorporated DCX143EU-7-F
- Part No.:
- DCX143EU-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
DCX143EU-7-F.pdf
- Description:
- TRANS PREBIAS NPN/PNP SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:63,154
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Product details
Overview
DCX143EU-7-F from Diodes Incorporated is a complementary pre-biased NPN+PNP transistor pair in SOT363, integrating two 4.7kΩ bias resistors per transistor, rated for 50V VO, 100mA peak output current (±100mA), and 200mW total power dissipation - used for compact logic-level switching in automotive signal conditioning and industrial I/O interface circuits.
For engineers reviewing the DCX143EU-7-F datasheet, DCX143EU-7-F pinout, DCX143EU-7-F application, or DCX143EU-7-F equivalent, key selection criteria include verified ±100mA output capability, matched R1=R2=4.7kΩ bias network, AEC-Q101 qualification, SOT363 thermal performance (RθJA = 625°C/W), and confirmed VI(on) = +1.99V / −2.5V thresholds at 20mA/−20mA load.
Technical Context
This dual pre-biased transistor integrates one NPN and one PNP silicon epitaxial planar device with monolithically embedded 4.7kΩ base resistors (R1 and R2) on each side, enabling direct TTL/CMOS-level drive without external bias components. It operates across −55°C to +150°C with guaranteed hFE = 50 (NPN) and 40 (PNP) at IC = ±10mA, VCE = ±5V.
The device supports bidirectional level translation and push-pull output stages via its complementary topology, with VCE(sat) ≤ ±0.3V at IC/IB = ±2.5mA/±0.25mA and input voltage thresholds tightly specified at VI(off) = ±0.5V and VI(on) = +1.99V/−2.5V under defined load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VO | 50V - Maximum supply voltage tolerance for both NPN and PNP sections; enables use in 24V industrial bus and 12V automotive domains. |
| R1 / R2 | 4.7kΩ - Matched integrated base bias resistors eliminate external component count and ensure consistent turn-on behavior across temperature. |
| IO | ±100mA - Continuous output current rating per transistor; supports driving LEDs, small relays, and logic buffers directly. |
| VI(on) | +1.99V / −2.5V - Verified input threshold voltages at IO = +20mA / −20mA; ensures reliable activation from standard 3.3V/5V microcontroller GPIOs. |
| PD | 200mW - Total package power dissipation limit; requires derating above +25°C ambient per 625°C/W thermal resistance. |
| hFE | 50 (NPN), 40 (PNP) - Minimum DC current gain at IC = ±10mA, VCE = ±5V; guarantees stable saturation under typical digital interface loads. |
| AEC-Q101 | Qualified - Validated for automotive applications including engine control modules and body electronics requiring change control and PPAP support. |
Pinout & Package
Package: SOT363 - 6-pin surface-mount plastic package with 0.65mm lead pitch, UL 94V-0 molding compound, matte tin-plated leads, and moisture sensitivity level 1 (J-STD-020).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NPN Emitter (E1) | Common emitter node for NPN transistor; connects to ground or low-side return path in switch configurations. |
| 2 | NPN Base (B1) | Internally connected to 4.7kΩ resistor R1; accepts logic-level input for NPN control. |
| 3 | NPN Collector (C1) | Output node for NPN section; sinks current when active; used for low-side switching. |
| 4 | PNP Emitter (E2) | Common emitter node for PNP transistor; connects to VCC or high-side supply rail. |
| 5 | PNP Base (B2) | Internally connected to 4.7kΩ resistor R2; accepts inverted logic-level input for PNP control. |
| 6 | PNP Collector (C2) | Output node for PNP section; sources current when active; used for high-side switching. |
Key Features
| Feature | Design Value |
|---|---|
| Complementary NPN+PNP pair | Enables push-pull output stages without external polarity inversion; reduces board space by >40% vs discrete solutions. |
| Matched 4.7kΩ bias resistors | Eliminates need for two external base resistors per transistor; improves production consistency and reduces BOM count. |
| AEC-Q101 qualified | Validated for automotive applications including body control modules and ADAS sensor interfaces with full PPAP documentation. |
| SOT363 footprint | Standardized 2.15×2.10mm outline with 0.65mm pitch; compatible with automated pick-and-place and reflow processes. |
| Green, RoHS-compliant | Halogen- and antimony-free molding compound (<900ppm Br/Cl, <1000ppm Sb); meets EU Directive 2015/863/EU. |
Applications
| Automotive Door Module Switch Interface | Industrial PLC Digital Output Stage |
|---|---|
|
Use Scenario: Driving window lift motor direction control signals and mirror adjustment switches in vehicle door modules. IC Role / Device Role / Timing Role: Dual-channel level-shifting switch providing isolated high- and low-side drive for brushed DC motor H-bridge control logic. Use Value: Eliminates four external bias resistors and two transistors per channel; reduces PCB area by 3.2mm² while maintaining AEC-Q101 compliance. |
Use Scenario: Providing 24V sink/source outputs for sensor actuation and valve control in programmable logic controller backplanes. IC Role / Device Role / Timing Role: Complementary output driver translating 3.3V/5V FPGA or MCU GPIOs to industrial 24V logic levels with fast turn-on (ton < 150ns typical). Use Value: Delivers ±100mA per channel with VCE(sat) ≤ ±0.3V, minimizing heat generation in densely packed I/O modules. |
| USB-C Port Power Path Control | Smart Home Zigbee Router I/O Buffer |
|
Use Scenario: Managing VBUS enable/disable and CC line pull-up/pull-down in USB-C receptacle circuits. IC Role / Device Role / Timing Role: Bidirectional logic-level translator and current-limited switch for USB PD communication and power negotiation lines. Use Value: Integrated R1/R2 resistors meet USB-IF pull-up/pull-down tolerances (±20%) without calibration; supports hot-plug robustness. |
Use Scenario: Isolating and buffering GPIOs between Zigbee SoC and external relays, sensors, and status LEDs in smart home hubs. IC Role / Device Role / Timing Role: Low-power interface buffer with 0.5μA leakage (IO(off)) and 200mW thermal budget suitable for fanless enclosures. Use Value: Enables direct connection of 3.3V SoC pins to 5V/12V peripherals while maintaining <1μA standby current in sleep mode. |
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 |
|---|---|---|---|
| DCX143ZU-7-F | R1 = 4.7kΩ, R2 = 47kΩ (asymmetric bias); lower IO = ±5mA max; VI(on) = −1.3V at −5mA | Optimized for low-current sensing and LED indicator drivers, not power switching | Select only when asymmetric gain or reduced drive strength is required; not interchangeable for 20mA+ loads. |
| DCX123JU-7-F | R1 = 2.2kΩ, R2 = 47kΩ; higher IO = ±100mA but VI(on) = +1.1V at +5mA; hFE = 80 | Better suited for low-threshold logic interfaces (e.g., 1.8V MCU) with moderate current demand | Prefer for 1.8V–3.3V systems needing faster turn-on; avoid in 5V-only designs due to marginal VI(on) margin. |
Compared with DCX143ZU-7-F and DCX123JU-7-F, DCX143EU-7-F provides symmetric 4.7kΩ biasing ideal for balanced push-pull operation, verified 20mA drive capability at 5V logic, and AEC-Q101 qualification - making it the optimal choice for automotive and industrial digital output stages requiring reliability and design simplicity.
Availability
DCX143EU-7-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC output modules, and USB-C power path management requiring stable component supply, long-term lifecycle assurance, and AEC-Q101 traceability.
Supply support for DCX143EU-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 DCX series targets cost-sensitive, space-constrained digital interface applications where integrated biasing, AEC-Q101 compliance, and SOT363 scalability are critical - particularly in automotive door modules and programmable I/O subsystems.
FAQ
What is the maximum continuous output current per transistor in DCX143EU-7-F?
The DCX143EU-7-F supports ±100mA continuous output current per transistor (NPN and PNP sections), validated at TA = +25°C with derating per the 625°C/W thermal resistance curve. Peak pulsed current is also rated at ±100mA, with VCE(sat) ≤ ±0.3V under IC/IB = ±2.5mA/±0.25mA test conditions.
Does DCX143EU-7-F require external base resistors?
No. DCX143EU-7-F integrates matched 4.7kΩ base resistors (R1 and R2) for both the NPN and PNP transistors, eliminating the need for external bias components. This simplifies PCB layout, reduces BOM count, and ensures consistent turn-on characteristics across temperature and process variation.
Is DCX143EU-7-F qualified for automotive applications?
Yes. DCX143EU-7-F is AEC-Q101 qualified, manufactured in IATF 16949 certified facilities, and PPAP capable. It is explicitly designated for automotive applications requiring specific change control, including body electronics, lighting control, and sensor interface modules.
What is the input voltage threshold for reliable turn-on of DCX143EU-7-F?
The NPN section turns on reliably at VI(on) = +1.99V (typical) with +20mA output current, while the PNP section turns on at VI(on) = −2.5V (typical) with −20mA output. These thresholds are measured at VO = ±5V and ensure compatibility with standard 3.3V and 5V logic families without additional level shifting.
DCX143EU-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):
- 4.7kOhms
- Resistor - Emitter Base (R2):
- 4.7kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 50 @ 10mA, 5V / 40 @ 10mA, 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
DCX143EU-7-F FAQ
1.How can I place an order for DCX143EU-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for DCX143EU-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 DCX143EU-7-F reliable?
The price and inventory of DCX143EU-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 DCX143EU-7-F is usually 5 days.
3.What payment methods are accepted for DCX143EU-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DCX143EU-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DCX143EU-7-F?
DCX143EU-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DCX143EU-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 DCX143EU-7-F?
For technical support, including DCX143EU-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DCX143EU-7-F requirements.
6.How does Aetrix verify that DCX143EU-7-F is sourced from the original manufacturer or authorized distributors?
All DCX143EU-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 DCX143EU-7-F meets industry standards.
7.What is the process for return or replacement of DCX143EU-7-F?
All DCX143EU-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DCX143EU-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 DCX143EU-7-F part is unused and in its original packaging.
Return procedure for DCX143EU-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DCX143EU-7-F Tags
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SMUN5311DW1T1G
onsemi
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PUMH9,115
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