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Diodes Incorporated DCX124EUQ-7-F
- Part No.:
- DCX124EUQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
DCX124EUQ-7-F.pdf
- Description:
- TRANS PREBIAS NPN/PNP 50V SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
DCX124EUQ-7-F from Diodes Incorporated is a complementary pre-biased NPN+PNP transistor pair in SOT363, featuring integrated 22 kΩ base resistors (R1 = R2), 50 V VO, ±30 mA continuous output current per channel, and AEC-Q101 qualification for automotive signal switching applications such as LED driver bias control and level-shifting interfaces.
For engineers reviewing the DCX124EUQ-7-F datasheet, DCX124EUQ-7-F pinout, DCX124EUQ-7-F application, or DCX124EUQ-7-F equivalent, key selection criteria include input threshold voltage (VI(on) = 1.9–3.0 V), on-state output voltage (VO(on) ≤ 0.3 V at 10 mA), DC current gain (GI = 56–60), thermal resistance (RθJA = 625 °C/W), and dual-channel complementary operation in a 6-pin surface-mount package.
Technical Context
This device integrates matched NPN and PNP transistors with identical 22 kΩ input bias resistors on both channels, enabling symmetrical high-side and low-side switching without external base resistors. It supports bidirectional logic-level interfacing with rail-to-rail input voltage range (±10 to ±40 V) and delivers stable saturation performance up to 30 mA per channel.
The SOT363 package provides thermally efficient operation at 200 mW total power dissipation, with derating to zero at +150 °C ambient. Its AEC-Q101 qualification confirms suitability for automotive body electronics where reliability under temperature cycling and vibration is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VO (Supply Voltage) | 50 V - Maximum allowable collector-emitter supply voltage for both NPN and PNP sections; defines safe operating range in 12 V/24 V automotive systems. |
| VI(on) (Input Threshold) | 1.9–3.0 V - Input voltage at which output saturates with 5 mA load; enables direct interface with 3.3 V and 5 V logic without level shifters. |
| VO(on) (Output Saturation) | ≤ 0.3 V - Collector-emitter voltage drop at 10 mA output; ensures minimal power loss and heat generation in switching nodes. |
| GI (DC Current Gain) | 56–60 - Ratio of output current to input current at 5 V output; guarantees reliable turn-on with low base drive requirements. |
| R1/R2 | 22 kΩ each - Integrated base resistors eliminate need for external bias components, reducing BOM count and PCB area in compact designs. |
| PD (Power Dissipation) | 200 mW - Total package power limit; requires thermal pad design per FR-4 layout guidelines to maintain junction temperature below 150 °C. |
| TJ/TSTG | −55 to +150 °C - Extended temperature range supports under-hood and infotainment module deployment without derating. |
Pinout & Package
Package: SOT363 - 6-pin, surface-mount plastic package with matte tin-plated leads, moisture sensitivity level 1, UL 94V-0 rating, and 0.006 g mass. Designed for automated pick-and-place assembly and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (BQ1) | NPN Base Terminal | Input node for NPN transistor; connected internally to R1 (22 kΩ) and external input signal. |
| 2 (EQ1) | NPN Emitter Terminal | Common emitter connection for NPN section; typically tied to ground or reference potential. |
| 3 (CQ1) | NPN Collector Terminal | Output node for NPN transistor; drives load in low-side switch configuration. |
| 4 (CQ2) | PNP Collector Terminal | Output node for PNP transistor; used in high-side switch configuration with load between VCC and CQ2. |
| 5 (EQ2) | PNP Emitter Terminal | Common emitter connection for PNP section; typically tied to VCC. |
| 6 (BQ2) | PNP Base Terminal | Input node for PNP transistor; connected internally to R2 (22 kΩ) and inverted input signal. |
Key Features
| Feature | Design Value |
|---|---|
| Complementary NPN+PNP Pair | Matched characteristics enable push-pull or H-bridge driver stages without discrete transistor pairing effort. |
| AEC-Q101 Qualified | Validated for automotive use including temperature cycling, mechanical shock, and humidity testing per IATF 16949 manufacturing. |
| Integrated Bias Resistors | 22 kΩ R1 and R2 eliminate two external resistors per channel, reducing component count and layout complexity. |
| Green, Halogen-Free Construction | Meets RoHS 3 (2015/863/EU) and Diodes' "Green" definition: Br+Cl < 1500 ppm, Sb < 1000 ppm, no intentionally added lead. |
| SOT363 Surface-Mount Compatibility | Standardized footprint supports high-volume automated assembly and IPC-compliant reflow profiles. |
Applications
| Automotive LED Tail Light Control | Industrial PLC Digital Output Module |
|---|---|
|
Use Scenario: Driving individual red/amber LED strings in rear lighting clusters with PWM dimming and fault detection. IC Role / Device Role / Timing Role: Dual-channel pre-biased transistor providing isolated low-side (NPN) and high-side (PNP) switching for independent LED string control. Use Value: Eliminates need for separate base resistors and level shifters, reducing board space by >30% versus discrete solutions while maintaining AEC-Q101 compliance. |
Use Scenario: Providing 24 V DC solid-state outputs in programmable logic controller backplanes with short-circuit protection. IC Role / Device Role / Timing Role: Complementary switch pair delivering fast turn-on (<100 ns) and low saturation voltage for reliable load switching under varying industrial loads. Use Value: Enables dual-output capability in single SOT363 footprint, simplifying PCB routing and improving thermal uniformity across multiple output channels. |
| USB-C Port Power Switching | Smartphone Camera Flash Driver |
|
Use Scenario: Controlling VBUS path and CC line termination in USB-C receptacles requiring bidirectional signal integrity. IC Role / Device Role / Timing Role: Level-shifting interface between 3.3 V microcontroller GPIOs and 5 V/20 V USB-C power rails using complementary switching action. Use Value: Input threshold (1.9–3.0 V) ensures compatibility with modern low-voltage MCUs; 50 V rating covers full USB PD voltage range. |
Use Scenario: Enabling white LED flash in mobile camera modules with precise current regulation and fast strobe timing. IC Role / Device Role / Timing Role: Pre-biased NPN transistor acting as primary current sink for LED anode-connected flash circuit; PNP used for auxiliary bias control. Use Value: VO(on) ≤ 0.3 V minimizes voltage headroom loss, allowing higher LED forward voltage margin and improved luminance consistency. |
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 |
|---|---|---|---|
| ACX124EUQ-7-F | Direct replacement with identical R1/R2 = 22 kΩ, same SOT363 package, and updated manufacturing process; NRND status lifted. | Same functional role in automotive and industrial switching; supports longer-term supply continuity. | Select ACX124EUQ-7-F for new designs due to active status and guaranteed long-term availability. |
| DCX144EUQ-7-F | Higher bias resistors (47 kΩ), resulting in lower input current (0.18 mA vs. 0.36 mA at 5 V) and reduced power consumption. | Better suited for battery-powered systems where standby current matters; slightly slower switching due to higher RBE. | Choose DCX144EUQ-7-F when optimizing for ultra-low quiescent current in always-on sensor nodes or IoT edge devices. |
Compared with DCX124EUQ-7-F, ACX124EUQ-7-F offers assured supply continuity and identical electrical behavior, while DCX144EUQ-7-F trades higher input impedance for lower drive current-making it preferable in energy-constrained applications but less suitable for high-speed or high-current switching.
Availability
DCX124EUQ-7-F is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC output stages, and USB-C power management requiring stable component supply and AEC-Q101 traceability.
Supply support for DCX124EUQ-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 consumer markets with ISO/TS 16949 and IATF 16949 certified facilities.
The DCX series targets cost-sensitive, space-constrained switching applications where integrated bias resistors and AEC-Q101 qualification reduce system-level validation effort and accelerate time-to-market.
FAQ
Is DCX124EUQ-7-F still recommended for new designs?
No-DCX124EUQ-7-F is marked NRND (Not Recommended for New Design) in Diodes' ordering information, with ACX124EUQ-7-F designated as its active replacement. While DCX124EUQ-7-F remains available for legacy support, new designs should use ACX124EUQ-7-F to ensure long-term supply and manufacturing continuity.
What is the maximum continuous output current per channel?
The absolute maximum continuous output current is ±30 mA per channel (NPN and PNP sections), verified at TA = +25°C with derating above 25°C per the 625 °C/W thermal resistance curve. Peak current capability is ±100 mA for short-duration pulses.
Can DCX124EUQ-7-F be used in 3.3 V logic systems?
Yes-its VI(on) range of 1.9–3.0 V ensures reliable turn-on with standard 3.3 V CMOS outputs, and VI(off) of 0.5–1.1 V provides adequate noise margin against false triggering in noisy environments.
How does the internal resistor tolerance affect switching performance?
R1 and R2 tolerances are ±30%, and their ratio tolerance is ±20%. This ensures consistent current gain (GI = 56–60) and predictable VO(on) across production lots, eliminating need for post-assembly calibration in most automotive and industrial applications.
DCX124EUQ-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):
- 22kOhms
- Resistor - Emitter Base (R2):
- 22kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 1mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- -
- 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
DCX124EUQ-7-F FAQ
1.How can I place an order for DCX124EUQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for DCX124EUQ-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 DCX124EUQ-7-F reliable?
The price and inventory of DCX124EUQ-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 DCX124EUQ-7-F is usually 5 days.
3.What payment methods are accepted for DCX124EUQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DCX124EUQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DCX124EUQ-7-F?
DCX124EUQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DCX124EUQ-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 DCX124EUQ-7-F?
For technical support, including DCX124EUQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DCX124EUQ-7-F requirements.
6.How does Aetrix verify that DCX124EUQ-7-F is sourced from the original manufacturer or authorized distributors?
All DCX124EUQ-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 DCX124EUQ-7-F meets industry standards.
7.What is the process for return or replacement of DCX124EUQ-7-F?
All DCX124EUQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DCX124EUQ-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 DCX124EUQ-7-F part is unused and in its original packaging.
Return procedure for DCX124EUQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DCX124EUQ-7-F Tags
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SMUN5311DW1T1G
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