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Diodes Incorporated DCX144EUQ-7R-F
- Part No.:
- DCX144EUQ-7R-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
DCX144EUQ-7R-F.pdf
- Description:
- PREBIAS TRANSISTOR SOT363 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:8,247
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Product details
Overview
DCX144EUQ-7R-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 continuous output current, and AEC-Q101 qualified for automotive use. It functions as a dual-channel logic-level switch in compact space-constrained PCBs, enabling simplified driver circuits for LED indicators and small-signal load control.
For engineers reviewing the DCX144EUQ-7R-F datasheet, DCX144EUQ-7R-F pinout, DCX144EUQ-7R-F application, or DCX144EUQ-7R-F equivalent, key selection criteria include verified input voltage thresholds (VI(on) = ±1.9–3.0V), output saturation voltage (VCE(sat) ≤ ±0.3V), DC current gain (GI = 68 at ±5mA), thermal derating curve, and SOT363 mechanical footprint compatibility.
Technical Context
This device integrates matched NPN and PNP transistors with monolithically embedded 47kΩ base bias resistors on each side, eliminating external resistor placement while maintaining independent input control. Its complementary topology supports push-pull or level-shifting configurations without cross-conduction risk under defined VI/VO conditions.
The SOT363 package enables dual-channel operation within 2.2mm × 2.1mm area, with thermal resistance RθJA = 625°C/W on FR-4 board, requiring power derating above +25°C ambient. Absolute maximum ratings specify symmetrical ±50V supply voltage, ±100mA peak current, and -55°C to +150°C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VO | ±50V - Maximum allowable supply voltage across collector-emitter terminals without breakdown. |
| IO | ±30mA - Continuous output current per channel; defines maximum steady-state load drive capability. |
| VI(on) | ±1.9–3.0V - Input voltage threshold at which output switches on with specified IO; determines TTL/CMOS logic compatibility. |
| VCE(sat) | ≤ ±0.3V - Saturation voltage drop at IC/IB = ±10mA/±0.5mA; directly impacts conduction loss and heat generation. |
| GI | 68 - DC current gain at VO = ±5V, IO = ±5mA; sets required base drive current for target collector current. |
| R1, R2 | 47kΩ - Integrated base bias resistors per transistor; eliminates need for two external resistors per channel. |
| PD | 200mW - Total package power dissipation limit at TA = +25°C; constrains simultaneous dual-channel loading. |
Pinout & Package
Package: SOT363 - 6-pin surface-mount plastic package (2.2mm × 2.1mm × 1.0mm), lead-free, RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NPN Emitter (EQ1) | Common emitter node for NPN transistor; connects to ground or low-side return path. |
| 2 | NPN Base (BQ1) | Input terminal for NPN section; internally connected to R1 and R2 network. |
| 3 | NPN Collector (CQ1) | Output terminal for NPN section; sinks current when active; connects to load cathode or pull-down node. |
| 4 | PNP Collector (CQ2) | Output terminal for PNP section; sources current when active; connects to load anode or pull-up node. |
| 5 | PNP Base (BQ2) | Input terminal for PNP section; internally connected to R1 and R2 network. |
| 6 | PNP Emitter (EQ2) | Common emitter node for PNP transistor; connects to VCC or high-side supply rail. |
Key Features
| Feature | Design Value |
|---|---|
| Complementary NPN+PNP pair | Enables push-pull switching or bidirectional signal routing in single-package footprint. |
| Integrated 47kΩ bias resistors (R1 = R2) | Reduces BOM count by two resistors per channel and improves layout consistency vs. discrete solutions. |
| AEC-Q101 qualification | Validated for automotive applications including body electronics, lighting, and infotainment subsystems. |
| SOT363 package with 0.65mm pitch | Supports high-density PCB assembly and automated reflow soldering with JEDEC-standard land pattern. |
| ±50V VO, ±30mA IO | Provides margin for 24V industrial and 12V automotive systems with transient overvoltage tolerance. |
Applications
| Automotive LED Turn Signal Driver | Industrial Push-Pull Level Shifter |
|---|---|
|
Use Scenario: Driving dual-color (amber/red) LED arrays in vehicle turn signal modules using shared microcontroller GPIO pins. IC Role / Device Role / Timing Role: Dual-channel switch providing independent NPN sink and PNP source paths synchronized to MCU PWM signals. Use Value: Eliminates external bias resistors and reduces PCB area by 35% versus discrete transistor + resistor solutions while meeting AEC-Q101 reliability requirements. |
Use Scenario: Converting 3.3V logic outputs to 5V/12V levels for legacy sensor interfaces in factory automation controllers. IC Role / Device Role / Timing Role: Complementary pair acting as non-inverting level translator with matched propagation delay and rail-to-rail swing. Use Value: Achieves <100ns propagation delay and <0.3V saturation drop across both channels, minimizing timing skew and voltage loss in real-time I/O chains. |
| Consumer Appliance Display Backlight Control | Medical Instrument Status Indicator |
|
Use Scenario: Controlling segmented LED backlighting in smart home appliance displays where space and thermal budget are constrained. IC Role / Device Role / Timing Role: Dual low-side/high-side switch managing parallel LED strings with shared enable logic. Use Value: Delivers 30mA per channel at <0.3V VCE(sat), reducing power loss by 40% compared to standard small-signal transistors with external biasing. |
Use Scenario: Driving bi-color status LEDs (green/red) in portable diagnostic devices requiring long-term reliability and low leakage. IC Role / Device Role / Timing Role: Precision-switched indicator driver with <0.5μA off-state leakage and guaranteed ±1.9V turn-on threshold. Use Value: Ensures consistent visual feedback across battery voltage range (2.8–5.5V) and meets IEC 60601-1 creepage/clearance requirements via SOT363 isolation. |
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-7R-F | No Q suffix; identical electrical specs but not AEC-Q101 qualified or PPAP-capable. | Restricted to commercial-grade applications; unsuitable for automotive production. | Select only if AEC-Q101 compliance is unnecessary and cost sensitivity outweighs qualification assurance. |
| ACX144EUQ-7R-F | Successor part with same pinout, R1/R2 values, and AEC-Q101 rating; improved thermal performance (RθJA = 550°C/W). | Direct replacement with enhanced power handling at elevated ambient temperatures. | Preferred for new designs targeting extended temperature operation (>85°C ambient) or higher reliability margins. |
Compared with DCX144EUQ-7R-F, DCX144EU-7R-F lacks automotive qualification and has higher thermal resistance, while ACX144EUQ-7R-F offers identical functionality with superior thermal derating-making it the optimal upgrade path for thermally demanding automotive or industrial deployments.
Availability
DCX144EUQ-7R-F is available at Aetrix Electronics and suitable for automotive lighting control, industrial I/O level shifting, and medical status indication requiring stable component supply and long-term manufacturing continuity.
Supply support for DCX144EUQ-7R-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 consumer markets.
The DCX series targets space-constrained logic interface and driver applications, delivering pre-biased transistor pairs with integrated resistors to reduce design complexity and improve manufacturability in automotive and industrial electronics.
FAQ
What is the difference between DCX144EUQ-7R-F and DCX144EU-7R-F?
DCX144EUQ-7R-F is AEC-Q101 qualified, PPAP-capable, and manufactured in IATF 16949 certified facilities, whereas DCX144EU-7R-F lacks automotive qualification and is intended for commercial applications only. Both share identical electrical specifications, pinout, and 47kΩ bias resistors.
Can DCX144EUQ-7R-F drive a 20mA LED load continuously?
Yes-each channel supports ±30mA continuous output current at TA ≤ +25°C. At 20mA, VCE(sat) remains ≤ ±0.3V, resulting in <6mW conduction loss per channel. Derating applies above +25°C ambient per the 625°C/W thermal resistance curve.
Is the SOT363 package compatible with standard reflow profiles?
Yes-the SOT363 package is fully compatible with IPC/JEDEC J-STD-020 moisture sensitivity level 1 reflow profiles. Its matte tin-plated leads meet MIL-STD-202 Method 208 solderability requirements and support lead-free SAC305 alloy processing.
Does DCX144EUQ-7R-F require external base resistors?
No-this device integrates 47kΩ bias resistors (R1 and R2) for both NPN and PNP transistors. External base resistors are unnecessary unless custom gain or switching speed tuning is required, which would compromise the pre-biased advantage.
DCX144EUQ-7R-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- DCX (XXXX) U
- 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-7R-F FAQ
1.How can I place an order for DCX144EUQ-7R-F through Aetrix?
Please submit a Request for Quotation (RFQ) for DCX144EUQ-7R-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-7R-F reliable?
The price and inventory of DCX144EUQ-7R-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-7R-F is usually 5 days.
3.What payment methods are accepted for DCX144EUQ-7R-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DCX144EUQ-7R-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DCX144EUQ-7R-F?
DCX144EUQ-7R-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DCX144EUQ-7R-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-7R-F?
For technical support, including DCX144EUQ-7R-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DCX144EUQ-7R-F requirements.
6.How does Aetrix verify that DCX144EUQ-7R-F is sourced from the original manufacturer or authorized distributors?
All DCX144EUQ-7R-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-7R-F meets industry standards.
7.What is the process for return or replacement of DCX144EUQ-7R-F?
All DCX144EUQ-7R-F units undergo pre-shipment inspection (PSI). If there is an issue with DCX144EUQ-7R-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-7R-F part is unused and in its original packaging.
Return procedure for DCX144EUQ-7R-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DCX144EUQ-7R-F Tags
-
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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