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Diodes Incorporated DCX124EU-7
- Part No.:
- DCX124EU-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
DCX124EU-7.pdf
- Description:
- TRANS NPN/PNP PREBIAS SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:8,994
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Product details
Overview
DCX124EU-7 from Diodes Incorporated is a complementary pre-biased NPN+PNP transistor pair in SOT363, designed for compact logic-level switching and signal inversion in space-constrained PCBs. It features 50V VO, matched 22kΩ input bias resistors (R1 = R2), ±30mA continuous output current per channel, and AEC-Q101 qualification for automotive body electronics.
For engineers reviewing the DCX124EU-7 datasheet, DCX124EU-7 pinout, DCX124EU-7 application, or DCX124EU-7 equivalent, key selection criteria include dual-channel polarity support, guaranteed VI(on) (1.9–3.0V) at 5mA load, low VO(on) (≤0.3V), and thermal derating compliance up to +150°C ambient.
Technical Context
This device integrates two monolithic transistors - one NPN and one PNP - with integrated base-emitter resistors (R1 and R2) on a single die. Each channel operates independently with symmetrical absolute maximum ratings: ±50V supply voltage, ±100mA peak current, and ±30mA DC output current.
Its pre-biased architecture eliminates external base resistors, enabling direct TTL/CMOS interface without level-shifting. The matched 22kΩ resistor values ensure consistent turn-on thresholds across both polarities, supporting bidirectional signal conditioning in half-bridge drivers and push-pull output stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VO Rating | ±50V - supports rail-to-rail operation in 24V automotive and industrial control systems |
| R1 / R2 Value | 22kΩ ±30% - enables direct 3.3V/5V logic drive with predictable IB ≈ ±0.36mA at ±5V |
| IO (DC) | ±30mA - sufficient for driving LEDs, small relays, or gate inputs of power MOSFETs |
| VCE(sat) | ±0.3V max - minimizes conduction loss and self-heating in high-duty-cycle switching |
| PD | 200mW total - requires thermal pad layout per FR-4 spec; derates linearly above +25°C ambient |
| TJ Range | −55°C to +150°C - qualified for under-hood automotive environments and industrial motor controls |
| AEC-Q101 | Qualified - meets stress test requirements for automotive electronics per IATF 16949 manufacturing |
Pinout & Package
Package: SOT363 - ultra-small surface-mount package (2.2 × 2.1 mm footprint, 1.0 mm height), lead-free, halogen-free, RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NPN Emitter (EQ1) | Common emitter node for NPN channel; connects to ground or low-side return path |
| 2 | NPN Base (BQ1) | Internally tied to R1; accepts logic input for NPN switch activation |
| 3 | NPN Collector (CQ1) | Output node for NPN channel; sinks current when active |
| 4 | PNP Collector (CQ2) | Output node for PNP channel; sources current when active |
| 5 | PNP Base (BQ2) | Internally tied to R2; accepts inverted logic input for PNP switch activation |
| 6 | PNP Emitter (EQ2) | Common emitter node for PNP channel; connects to VCC or high-side supply rail |
Key Features
| Feature | Design Value |
|---|---|
| Complementary Pair Integration | Single SOT363 package contains matched NPN+PNP transistors with shared thermal coupling and identical biasing |
| Pre-Biased Resistor Network | Integrated 22kΩ R1/R2 resistors eliminate need for external base resistors, reducing BOM count and layout area |
| Automotive Qualification | AEC-Q101 qualified, PPAP-capable, manufactured in IATF 16949 certified facilities for safety-critical modules |
| Green Packaging | Halogen- and antimony-free molding compound (Br+Cl <1500ppm, Sb <1000ppm), UL 94V-0 rated |
| Thermal Robustness | 625°C/W junction-to-ambient thermal resistance enables stable operation up to +150°C junction temperature |
Applications
| LED Driver Interface | Automotive Door Module |
|---|---|
Use Scenario: Driving dual-color status LEDs (red/green) from a single microcontroller GPIO pin using complementary logic levels. IC Role / Device Role / Timing Role: Acts as a polarity-inverting buffer that converts one digital output into opposing-source/sink paths for LED anode/cathode control. Use Value: Eliminates discrete resistor-transistor pairs, reduces PCB area by >40%, and ensures matched turn-on timing between colors. | Use Scenario: Controlling window lift/lower and mirror fold/unfold functions in vehicle door control units. IC Role / Device Role / Timing Role: Provides bidirectional load switching for small DC motors and solenoids, interfacing directly with 5V CAN/LIN subsystem MCUs. Use Value: Enables fail-safe dual-channel control with inherent shoot-through prevention due to complementary topology. |
| Industrial Sensor Signal Conditioning | Smart Home Actuator Interface |
Use Scenario: Level-shifting and polarity inversion of analog sensor outputs (e.g., thermistor-based HVAC feedback) before ADC sampling. IC Role / Device Role / Timing Role: Functions as a precision inverter stage with fixed gain and offset compensation via resistor-matched bias network. Use Value: Maintains signal integrity across temperature (-40°C to +125°C) with <±20% R1/R2 ratio tolerance and no external trimming required. | Use Scenario: Driving latching relays and indicator buzzers in battery-powered smart locks and thermostats. IC Role / Device Role / Timing Role: Serves as a low-quiescent-current (IL ≤ ±0.36mA) dual-output driver compatible with coin-cell or Li-ion supply rails. Use Value: Extends battery life by minimizing standby current while delivering fast edge response (<100ns propagation delay typical). |
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-7-F | 47kΩ bias resistors instead of 22kΩ; higher VI(on) threshold (1.9–3.0V vs. same range but tighter at 5V drive) | Better noise immunity in noisy industrial environments; lower input current draw (±0.18mA vs. ±0.36mA) | Select when system uses 5V logic and requires reduced base loading or improved EMI margin |
| DCX114YU-7-F | Asymmetric bias (10kΩ/47kΩ); optimized for PNP-dominant loads with faster PNP turn-on (VI(on) = −1.4V @ −1mA) | Suitable for asymmetric drive needs like relay coil energization where PNP side handles heavier load | Choose when load asymmetry exists and precise PNP timing is critical over NPN matching |
Compared with DCX124EU-7, DCX144EU-7 offers lower input current and better noise rejection, while DCX114YU-7 provides asymmetric switching optimized for PNP-heavy loads - all retain SOT363 packaging and AEC-Q101 qualification.
Availability
DCX124EU-7 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and smart home actuator control requiring stable component supply and long-term lifecycle assurance.
Supply support for DCX124EU-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 consumer markets.
The DCX series targets cost-sensitive, space-constrained applications needing integrated biasing - specifically engineered for logic-level interfacing in automotive ECUs and IoT edge nodes where board area and qualification rigor are critical.
FAQ
What is the maximum operating temperature for DCX124EU-7?
The device is rated for junction temperatures from −55°C to +150°C, with thermal derating beginning at +25°C ambient. At +100°C ambient, maximum power dissipation drops to 100mW per channel based on its 625°C/W RθJA rating and FR-4 PCB layout compliance.
Can DCX124EU-7 replace discrete transistor-resistor combinations?
Yes - it replaces two standard transistors plus four external resistors (two base and two pull-down/pull-up). Its integrated 22kΩ R1/R2 network ensures matched biasing, eliminates layout mismatch errors, and reduces component count by up to 75% in push-pull or inverter circuits.
Is DCX124EU-7 suitable for 3.3V logic interfacing?
Yes - with VI(on) specified at 1.9–3.0V (NPN) and −1.9 to −3.0V (PNP) at 5mA load, it reliably switches with 3.3V CMOS outputs. Input current remains ≤±0.36mA at ±3.3V, ensuring compatibility without additional level-shifting circuitry.
Does DCX124EU-7 support simultaneous conduction of both transistors?
No - its complementary configuration inherently prevents shoot-through; when the NPN is active (low-side sink), the PNP is off, and vice versa. This makes it ideal for safe, non-overlapping switching in half-bridge and inverter topologies without external dead-time control.
DCX124EU-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):
- 22kOhms
- Resistor - Emitter Base (R2):
- 22kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 56 @ 5mA, 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
DCX124EU-7 FAQ
1.How can I place an order for DCX124EU-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DCX124EU-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 DCX124EU-7 reliable?
The price and inventory of DCX124EU-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DCX124EU-7 is usually 5 days.
3.What payment methods are accepted for DCX124EU-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DCX124EU-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DCX124EU-7?
DCX124EU-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DCX124EU-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 DCX124EU-7?
For technical support, including DCX124EU-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DCX124EU-7 requirements.
6.How does Aetrix verify that DCX124EU-7 is sourced from the original manufacturer or authorized distributors?
All DCX124EU-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 DCX124EU-7 meets industry standards.
7.What is the process for return or replacement of DCX124EU-7?
All DCX124EU-7 units undergo pre-shipment inspection (PSI). If there is an issue with DCX124EU-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 DCX124EU-7 part is unused and in its original packaging.
Return procedure for DCX124EU-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DCX124EU-7 Tags
-
SMUN5311DW1T1G
onsemi
-
UMH9NTN
Rohm Semiconductor
-
PUMH13,115
Nexperia USA Inc.
-
PUMD3-QX
Nexperia USA Inc.
-
PUMD2,115
Nexperia USA Inc.
-
RN4987FE,LF(CT
Toshiba Semiconductor and Storage
-
PUMD12,115
Nexperia USA Inc.
-
PUMD9,115
Nexperia USA Inc.
-
PUMH9,115
Nexperia USA Inc.
-
PUMD3,115
Nexperia USA Inc.
-
DCX114EU-7-F
Diodes Incorporated
-
PUMD13,115
Nexperia USA Inc.
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