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Diodes Incorporated DCX143ZU-7-F
- Part No.:
- DCX143ZU-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
DCX143ZU-7-F.pdf
- Description:
- TRANS PREBIAS NPN/PNP SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
DCX143ZU-7-F from Diodes Incorporated is a complementary pre-biased NPN+PNP transistor pair in SOT363, featuring integrated 4.7kΩ and 47kΩ bias resistors, 50V VO, ±100mA peak output current, and AEC-Q101 qualification for automotive signal switching applications such as LED driver control and logic-level translation.
For engineers reviewing the DCX143ZU-7-F datasheet, DCX143ZU-7-F pinout, DCX143ZU-7-F application, or DCX143ZU-7-F equivalent, key selection criteria include input voltage thresholds (VI(on) = −1.3V / +1.3V), output saturation voltage (VCE(sat) ≤ ±0.3V), DC current gain (hFE = 80), and dual-polarity operation in a 6-pin surface-mount package.
Technical Context
This device integrates matched NPN and PNP transistors with on-chip base biasing networks-R1 = 4.7kΩ and R2 = 47kΩ-enabling direct logic-level drive without external resistors. It supports bidirectional switching with symmetrical absolute maximum ratings: ±50V supply voltage, ±100mA peak current, and ±0.3V saturation voltage under defined IC/IB conditions.
The SOT363 package provides six terminals with shared emitter configuration (E1/E2), independent base resistors per transistor, and thermal resistance of 625°C/W. Operation is specified across −55°C to +150°C, with AEC-Q101 qualification confirming suitability for automotive powertrain and body electronics where reliability under thermal cycling and vibration is critical.
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. |
| VI(on) | +1.3V / −1.3V - Input turn-on threshold at IO = ±5mA and VO = ±0.3V, compatible with 3.3V and 5V CMOS/TTL logic families. |
| VCE(sat) | ≤ ±0.3V - Low saturation voltage at IC/IB = ±1mA/±0.1mA, minimizing conduction loss in high-duty-cycle switching. |
| hFE | 80 - DC current gain at VCE = ±5V and IC = ±1mA, ensuring stable current amplification in linear and saturated modes. |
| PD | 200mW - Total power dissipation rating at TA = +25°C on FR-4 PCB, supporting compact layout in space-constrained modules. |
| RθJA | 625°C/W - Junction-to-ambient thermal resistance, defining derating slope (200mW → 0mW over 0–150°C ambient). |
| Package | SOT363 - 6-pin, 2.2mm × 2.1mm surface-mount package with matte tin-plated leads, moisture sensitivity level 1. |
Pinout & Package
SOT363 is a 6-pin, small-outline transistor package with 0.65mm lead pitch, molded green plastic housing (UL 94V-0), and weight of 0.006g. Terminals are matte tin-plated and solderable per MIL-STD-202, Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NPN Emitter (E1) | Common emitter node for NPN transistor; referenced to system ground in low-side switch configurations. |
| 2 | NPN Base (B1) via R1 | Input terminal with integrated 4.7kΩ resistor to NPN base; accepts logic-high signals directly. |
| 3 | PNP Emitter (E2) | Common emitter node for PNP transistor; tied to VCC in high-side switch configurations. |
| 4 | PNP Base (B2) via R1 | Input terminal with integrated 4.7kΩ resistor to PNP base; driven by logic-low or open-drain outputs. |
| 5 | NPN Collector (C1) | Output node for NPN section; sinks current when active, used for driving LEDs or MOSFET gates. |
| 6 | PNP Collector (C2) | Output node for PNP section; sources current when active, suitable for pull-up or level-shifting functions. |
Key Features
| Feature | Design Value |
|---|---|
| Complementary NPN+PNP pair | Single SOT363 package integrates matched bipolar transistors with independent bias networks for push-pull or H-bridge driver stages. |
| Pre-biased resistor network | R1 = 4.7kΩ and R2 = 47kΩ per transistor eliminate need for external base resistors, reducing BOM count and PCB area. |
| AEC-Q101 qualified | Validated for automotive applications including engine control units and lighting modules, with PPAP capability and IATF 16949 manufacturing. |
| Green, RoHS-compliant construction | Lead-free, halogen- and antimony-free molding compound (Br+Cl <1500ppm, Sb <1000ppm), UL 94V-0 rated. |
| Wide operating temperature | −55°C to +150°C junction range supports under-hood and industrial environments without derating penalties. |
Applications
| Automotive LED Headlamp Control | Industrial PLC Digital Output Module |
|---|---|
|
Use Scenario: Driving high-brightness LED strings in adaptive front-lighting systems with PWM dimming and fault detection. IC Role / Device Role / Timing Role: Dual-transistor switch providing synchronized NPN sink and PNP source paths for bidirectional current control. Use Value: Integrated biasing enables direct microcontroller GPIO interface, eliminating four external resistors and reducing board area by >12 mm² per channel. |
Use Scenario: Isolating and amplifying 24V digital outputs from programmable logic controllers to solenoid valves and indicators. IC Role / Device Role / Timing Role: Level translator and current buffer converting 3.3V/5V logic signals to robust 24V-compatible drive capability. Use Value: ±100mA peak output current and ±50V VO support direct drive of 24V loads up to 240mW without external drivers. |
| USB-C Power Delivery Interface | Smart Home Sensor Hub Signal Conditioning |
|
Use Scenario: Controlling USB-C CC line termination and VCONN power switching during port negotiation and role swapping. IC Role / Device Role / Timing Role: Bidirectional analog switch implementing fast, low-leakage path selection between CC1/CC2 and VCONN rails. Use Value: VI(on) = ±1.3V ensures compatibility with USB PD PHY voltage levels; ±0.3V VCE(sat) minimizes insertion loss in signaling path. |
Use Scenario: Conditioning analog sensor outputs (e.g., thermistors, photoresistors) before ADC sampling in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Precision current mirror and active load element for ratiometric measurement circuits. Use Value: Matched hFE = 80 and tight R1/R2 tolerance (±20%) enable accurate current replication with <2% error across −40°C to +85°C. |
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 |
|---|---|---|---|
| DCX143EU-7-F | R1 = R2 = 4.7kΩ (symmetric bias); hFE = 50 vs. 80; VI(on) = +1.99V/−2.5V | Better suited for higher-gain, single-polarity biasing where matched R1/R2 simplifies design. | Select when symmetric input thresholds and lower drive current requirements apply. |
| DCX123JU-7-F | R1 = 2.2kΩ, R2 = 47kΩ; higher IO = ±100mA; hFE = 80; VI(on) = +1.1V/−1.1V | Optimized for faster switching in 3.3V logic systems with tighter input threshold margins. | Choose for 3.3V MCU interfaces requiring lower VI(on) and higher output current headroom. |
Compared with DCX143EU-7-F and DCX123JU-7-F, DCX143ZU-7-F offers asymmetric bias (4.7kΩ/47kΩ) that improves noise immunity in mixed-voltage systems while maintaining identical thermal and automotive qualifications-making it optimal for 5V/24V interface bridging where input hysteresis matters.
Availability
DCX143ZU-7-F is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC output stages, USB-C interface management, and smart home sensor conditioning requiring stable component supply and long-term lifecycle support.
Supply support for DCX143ZU-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 company specializing in discrete, analog, and mixed-signal devices, with operations certified to IATF 16949 and ISO 9001 standards.
The DCX series targets cost-sensitive, space-constrained applications requiring integrated biasing and automotive-grade reliability-designed specifically for signal switching, level translation, and driver consolidation in automotive and industrial control systems.
FAQ
What is the maximum continuous output current rating for DCX143ZU-7-F?
The DCX143ZU-7-F supports ±100mA peak output current per transistor section, with continuous DC output current limited to ±100mA under derated thermal conditions (TA ≤ +70°C). At full 200mW power dissipation, sustained current must be reduced per the 625°C/W thermal resistance curve to avoid exceeding 150°C junction temperature.
Does DCX143ZU-7-F require external base resistors for logic-level drive?
No. DCX143ZU-7-F integrates 4.7kΩ and 47kΩ bias resistors internally-R1 connects each base to its respective input pin, and R2 connects base to emitter-enabling direct connection to 3.3V or 5V logic outputs without external components. This eliminates four resistors per channel in typical push-pull configurations.
Is DCX143ZU-7-F qualified for automotive applications?
Yes. DCX143ZU-7-F is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. Its −55°C to +150°C operating range, green RoHS-compliant packaging, and validation for thermal cycling, humidity, and mechanical shock meet automotive electronics requirements for body control, lighting, and infotainment subsystems.
How does the pin configuration support dual-transistor operation in SOT363?
The SOT363 pinout assigns Pins 1–2 to NPN (E1, B1), Pins 3–4 to PNP (E2, B2), and Pins 5–6 to collectors (C1, C2), enabling independent control of both transistors. The shared-emitter topology allows complementary switching-e.g., Pin 1 (E1) grounded and Pin 3 (E2) tied to VCC-to implement true push-pull output stages without external wiring.
DCX143ZU-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):
- 47kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 80 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 250µA, 5mA
- Current - Collector Cutoff (Max):
- 500nA
- Frequency - Transition:
- 250MHz
- Power - Max:
- 200mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
DCX143ZU-7-F FAQ
1.How can I place an order for DCX143ZU-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for DCX143ZU-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 DCX143ZU-7-F reliable?
The price and inventory of DCX143ZU-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 DCX143ZU-7-F is usually 5 days.
3.What payment methods are accepted for DCX143ZU-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DCX143ZU-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DCX143ZU-7-F?
DCX143ZU-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DCX143ZU-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 DCX143ZU-7-F?
For technical support, including DCX143ZU-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DCX143ZU-7-F requirements.
6.How does Aetrix verify that DCX143ZU-7-F is sourced from the original manufacturer or authorized distributors?
All DCX143ZU-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 DCX143ZU-7-F meets industry standards.
7.What is the process for return or replacement of DCX143ZU-7-F?
All DCX143ZU-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DCX143ZU-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 DCX143ZU-7-F part is unused and in its original packaging.
Return procedure for DCX143ZU-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DCX143ZU-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
Toshiba Semiconductor and Storage
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PUMD12,115
Nexperia USA Inc.
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PUMD9,115
Nexperia USA Inc.
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PUMH9,115
Nexperia USA Inc.
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PUMD3,115
Nexperia USA Inc.
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DCX114EU-7-F
Diodes Incorporated
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PUMD13,115
Nexperia USA Inc.
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