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Diodes Incorporated DCX123JU-7
- Part No.:
- DCX123JU-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
DCX123JU-7.pdf
- Description:
- TRANS NPN/PNP PREBIAS SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:8,361
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Product details
Overview
DCX123JU-7 from Diodes Incorporated is a complementary pre-biased NPN+PNP transistor pair in SOT363, featuring integrated 2.2kΩ and 47kΩ bias resistors, 50V VCEO, ±100mA peak output current, and AEC-Q101 qualification for automotive signal switching applications such as LED driver enable control and microcontroller I/O level translation.
For engineers reviewing the DCX123JU-7 datasheet, DCX123JU-7 pinout, DCX123JU-7 application, or DCX123JU-7 equivalent, key selection criteria include input voltage thresholds (VI(on) = 1.1V / –1.1V), low saturation voltage (VCE(sat) ≤ 0.3V / –0.3V), DC current gain (GI = 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-emitter resistors (R1 = 2.2kΩ, R2 = 47kΩ) to eliminate external bias components. It operates across –55°C to +150°C and supports bidirectional logic-level interfacing with separate input voltage thresholds for each polarity.
The complementary configuration enables push-pull output stages and high-side/low-side switching without discrete resistor networks. Thermal resistance (RθJA = 625°C/W) and 200mW total power dissipation are defined for FR-4 PCB mounting with minimum pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | ±50V - Supports rail-to-rail switching in 24V industrial and 12V automotive systems without breakdown risk. |
| IO (NPN/PNP) | +100mA / –100mA - Drives medium-current loads like small relays, LEDs, or gate inputs directly. |
| VI(on) | +1.1V / –1.1V - Compatible with 1.8V–3.3V logic families for reliable turn-on without overdrive. |
| VO(on) | +0.1–0.3V / –0.1–0.3V - Minimizes conduction loss in power path or signal routing applications. |
| GI | 80 - Ensures stable current amplification at IO = 10mA under ±5V supply conditions. |
| R1/R2 | 2.2kΩ / 47kΩ - Sets precise base current ratio for predictable saturation and fast switching. |
| PD | 200mW - Enables dual-transistor operation within thermal limits on standard PCBs. |
Pinout & Package
Package: SOT363 - 6-pin, surface-mount plastic package with matte tin-plated leads; moisture sensitivity level 1 per J-STD-020; weight ≈ 0.006g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NPN Emitter (EQ1) | Common emitter node for NPN section; connects to ground or low-side return path. |
| 2 | NPN Base (BQ1) | Internally connected to R1 and R2; accepts input signal for NPN control. |
| 3 | NPN Collector (CQ1) | Output terminal for NPN switch; sinks current when active. |
| 4 | PNP Emitter (EQ2) | Common emitter node for PNP section; connects to positive rail or high-side source. |
| 5 | PNP Base (BQ2) | Internally connected to R1 and R2; accepts inverted input signal for PNP control. |
| 6 | PNP Collector (CQ2) | Output terminal for PNP switch; sources current when active. |
Key Features
| Feature | Design Value |
|---|---|
| Complementary NPN+PNP pair | Single-package solution eliminates discrete pairing mismatch and layout asymmetry in push-pull circuits. |
| AEC-Q101 qualified | Validated for automotive use with PPAP capability and IATF 16949 manufacturing compliance. |
| Integrated bias resistors | R1 = 2.2kΩ, R2 = 47kΩ reduce BOM count and improve production yield versus external resistor networks. |
| Green, RoHS-compliant | Halogen- and antimony-free molding compound meets EU Directive 2015/863/EU (<900ppm Br/Cl, <1000ppm Sb). |
| Low VCE(sat) | ≤0.3V (NPN) / ≤–0.3V (PNP) at rated current ensures minimal voltage drop and heat generation. |
Applications
| Automotive Body Control Module | Industrial PLC I/O Expansion |
|---|---|
Use Scenario: Driving LED status indicators and relay coils in vehicle door modules and lighting controllers. IC Role / Device Role / Timing Role: Dual-polarity switch enabling both high-side (PNP) and low-side (NPN) load control from a single MCU GPIO. Use Value: Reduces component count by replacing two discrete transistors and four bias resistors with one AEC-Q101-qualified device. |
Use Scenario: Level-shifting and buffering digital outputs from 3.3V microcontrollers to 24V field devices in factory automation. IC Role / Device Role / Timing Role: Logic interface translator providing bidirectional voltage compatibility and current gain for PLC output stages. Use Value: Eliminates need for external pull-up/pull-down networks while maintaining fast edge response (fT = 250MHz). |
| Consumer Appliance Motor Control | Medical Diagnostic Equipment Signal Conditioning |
Use Scenario: Enabling/disabling small DC brush motors and solenoids in smart home appliances using MCU-controlled PWM signals. IC Role / Device Role / Timing Role: Pre-biased switch delivering precise on/off timing with minimal propagation delay and no external bias tuning. Use Value: Ensures consistent turn-on threshold (VI(on) = 1.1V) across temperature and unit-to-unit variation. |
Use Scenario: Isolating and amplifying sensor interface signals in portable diagnostic tools requiring low-noise, rail-compatible switching. IC Role / Device Role / Timing Role: Low-leakage (IO(off) ≤ 0.5μA) signal gate managing analog front-end enable paths. Use Value: Maintains signal integrity during standby via ultra-low off-state current and tight resistor tolerance (±30% R1, ±20% R2/R1). |
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 |
|---|---|---|---|
| DCX114YU-7-F | R1 = 10kΩ, R2 = 47kΩ; higher input current (0.88mA vs. 3.6mA); lower VI(on) (0.3V). | Better suited for low-power logic interfaces where drive strength is constrained. | Select when lower input current and faster turn-on at reduced voltage are required. |
| DCX143ZU-7-F | R1 = 4.7kΩ, R2 = 47kΩ; intermediate input current (1.8mA); VI(on) = 1.3V (NPN). | Offers balanced trade-off between speed and power consumption in mid-range current switching. | Choose for applications needing moderate drive capability with tighter VI(on) tolerance than DCX123JU-7. |
Compared with DCX114YU-7-F and DCX143ZU-7-F, DCX123JU-7 provides the highest input current (3.6mA) and lowest R1 value (2.2kΩ), making it optimal for robust driving of heavier capacitive or inductive loads while maintaining fast switching response.
Availability
DCX123JU-7 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC output stages, and consumer appliance motor control requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for DCX123JU-7 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 designs requiring integrated biasing and automotive qualification-designed specifically for signal switching, logic interfacing, and load control in harsh environments.
FAQ
What is the maximum operating temperature for DCX123JU-7?
The DCX123JU-7 is rated for junction and storage temperatures from –55°C to +150°C. Its thermal resistance (RθJA = 625°C/W) assumes mounting on FR-4 PCB with minimum recommended pad layout; derating applies above +25°C ambient per Figure 1 in DS30347 Rev. 24-2.
Does DCX123JU-7 require external bias resistors?
No. DCX123JU-7 integrates R1 = 2.2kΩ and R2 = 47kΩ internally, eliminating the need for external base resistors. This simplifies PCB layout, improves reliability, and ensures consistent biasing across temperature and process variation.
Is DCX123JU-7 suitable for 24V industrial applications?
Yes. With ±50V VCEO rating and ±100mA peak output current, DCX123JU-7 safely switches 24V loads including relays, LEDs, and small solenoids. Its AEC-Q101 qualification and IATF 16949 manufacturing further validate robustness in demanding environments.
How does the input voltage threshold vary with temperature?
VI(on) for DCX123JU-7 is specified at +25°C (1.1V NPN / –1.1V PNP). Per typical curves in DS30347 Rev. 24-2 Figures 5 and 11, VI(on) decreases slightly with rising temperature due to semiconductor physics, remaining within functional range up to +150°C junction temperature.
DCX123JU-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Transistor Type:
- 1 NPN, 1 PNP - Pre-Biased (Dual)
- Current - Collector (Ic) (Max):
- 100mA
- Voltage - Collector Emitter Breakdown (Max):
- 50V
- Resistor - Base (R1):
- 2.2kOhms
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
DCX123JU-7 FAQ
1.How can I place an order for DCX123JU-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DCX123JU-7 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 DCX123JU-7 reliable?
The price and inventory of DCX123JU-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DCX123JU-7 is usually 5 days.
3.What payment methods are accepted for DCX123JU-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DCX123JU-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DCX123JU-7?
DCX123JU-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DCX123JU-7 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 DCX123JU-7?
For technical support, including DCX123JU-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DCX123JU-7 requirements.
6.How does Aetrix verify that DCX123JU-7 is sourced from the original manufacturer or authorized distributors?
All DCX123JU-7 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 DCX123JU-7 meets industry standards.
7.What is the process for return or replacement of DCX123JU-7?
All DCX123JU-7 units undergo pre-shipment inspection (PSI). If there is an issue with DCX123JU-7, 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 DCX123JU-7 part is unused and in its original packaging.
Return procedure for DCX123JU-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DCX123JU-7 Tags
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