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Diodes Incorporated ACX143ZUQ-7R
- Part No.:
- ACX143ZUQ-7R
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
ACX143ZUQ-7R.pdf
- Description:
- PREBIAS TRANSISTOR SOT363 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:2,884
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Product details
Overview
ACX143ZUQ-7R from Diodes Incorporated is a complementary pre-biased dual transistor in SOT363 package, integrating one NPN and one PNP small-signal transistor with built-in 4.7kΩ and 47kΩ bias resistors. It supports ±50V supply, ±100mA output current, 270mW power dissipation, and is AEC-Q101 qualified for automotive signal switching applications.
For engineers reviewing the ACX143ZUQ-7R datasheet, ACX143ZUQ-7R pinout, ACX143ZUQ-7R application, or ACX143ZUQ-7R equivalent, key selection criteria include guaranteed logic-level switching thresholds (±1.3V ON / ±0.5V OFF), matched resistor tolerances (±30% R1, ±20% R2/R1), DC current gain ≥80, and thermal performance on FR-4 (450°C/W RθJA).
Technical Context
This device implements two independent, resistor-equipped bipolar transistors in a single SOT363 package: Q1 (NPN) and Q2 (PNP), each with dedicated base bias networks (R1 = 4.7kΩ, R2 = 47kΩ). The topology enables direct logic-level interface without external bias components.
It operates across –55°C to +150°C, meets AEC-Q101 stress requirements, and delivers stable DC current gain (hFE ≥80 at IC = 10mA) and high-speed response (fT = 250MHz) for both polarities under defined VCE conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Rating | ±50V - Supports rail-to-rail switching in 24V/48V automotive control circuits |
| IO Max | ±100mA - Drives medium-current loads like LED indicators or relay coils |
| PD | 270mW - Limits continuous power per package; derates above 25°C ambient |
| R1, R2 | 4.7kΩ / 47kΩ - Sets fixed base current ratio for predictable saturation behavior |
| VIN(ON) | ±1.3V - Ensures reliable turn-on with standard CMOS/TTL logic outputs |
| hFE | ≥80 - Guarantees minimum current amplification at IC = 10mA for robust switching margin |
| fT | 250MHz - Enables use in low-MHz digital signal routing and pulse shaping |
Pinout & Package
SOT363 surface-mount package: 6-pin, lead-free, halogen-free molded plastic body (UL 94V-0), 0.006g weight, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | EQ2 (PNP Emitter) | Common emitter reference for PNP section; connects to negative supply rail |
| 2 | BQ1 (NPN Base) | Input node for NPN transistor; biased via internal R1–R2 network |
| 3 | CQ2 (PNP Collector) | Output node for PNP transistor; sinks current when active |
| 4 | EQ1 (NPN Emitter) | Common emitter reference for NPN section; connects to ground |
| 5 | BQ2 (PNP Base) | Input node for PNP transistor; biased via internal R1–R2 network |
| 6 | CQ1 (NPN Collector) | Output node for NPN transistor; sources current when active |
Key Features
| Feature | Design Value |
|---|---|
| Complementary dual topology | Single-package integration of matched NPN+PNP transistors eliminates layout asymmetry and timing skew |
| Built-in bias resistors | Eliminates four external resistors per channel, reducing BOM count and PCB area in logic interface designs |
| AEC-Q101 qualification | Validated for automotive under-hood environments including temperature cycling, HTRB, and ESD testing |
| Green RoHS compliance | Halogen- and antimony-free formulation (<900ppm Br/Cl, <1000ppm Sb) meets strict OEM environmental mandates |
Applications
| Automotive Door Module Control | Industrial PLC Input Conditioning |
|---|---|
Use Scenario: Driving window lift motor direction control signals and door lock actuator enable lines in body control modules. IC Role / Device Role / Timing Role: Dual-polarity switch translating microcontroller GPIO outputs into bidirectional load drive capability. Use Value: Reduces component count by replacing two discrete transistor + resistor sets while maintaining AEC-Q101 reliability. | Use Scenario: Level-shifting and current amplification of 24V industrial sensor inputs before FPGA or MCU sampling. IC Role / Device Role / Timing Role: Signal conditioning front-end providing noise-immune, rail-compatible input buffering. Use Value: Guaranteed ±1.3V logic thresholds ensure clean switching even with noisy field wiring and voltage drop. |
| LED Status Indicator Driver | Power Supply Enable Sequencing |
Use Scenario: Driving multiple colored status LEDs (red/green) from shared microcontroller pins in medical diagnostic equipment. IC Role / Device Role / Timing Role: Low-power, polarity-agile current sink/source driver enabling bi-color LED control with single GPIO. Use Value: Built-in biasing ensures consistent brightness and fast turn-on/off without external RC tuning. | Use Scenario: Controlling power-up sequence of auxiliary rails (e.g., analog, I/O, core) in telecom power management units. IC Role / Device Role / Timing Role: Precision-delayed enable switch using resistor-ratio-controlled base drive timing. Use Value: Matched R1/R2 tolerance (±20%) enables predictable, repeatable sequencing windows across production lots. |
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 |
|---|---|---|---|
| NSBC114YDXV6T1G | Same SOT363 package; R1 = 10kΩ, R2 = 100kΩ; hFE min = 60 | Higher input resistance reduces drive current; lower hFE requires larger base drive margin | Select when higher input impedance is needed and lower gain is acceptable |
| EMH11T2R | Same footprint; R1 = 22kΩ, R2 = 220kΩ; fT = 150MHz; not AEC-Q101 qualified | Lacks automotive qualification; reduced bandwidth limits high-speed edge handling | Use only in non-automotive industrial or consumer systems with relaxed reliability requirements |
Compared with NSBC114YDXV6T1G and EMH11T2R, ACX143ZUQ-7R provides tighter resistor matching (±20% R2/R1 vs ±30%), higher minimum hFE (80 vs 60), full AEC-Q101 compliance, and superior fT-making it optimal for safety-critical automotive signal routing where gain stability and qualification are mandatory.
Availability
ACX143ZUQ-7R is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input stages, and medical LED indicator systems requiring stable component supply and long-term lifecycle support.
Supply support for ACX143ZUQ-7R 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, automotive-qualified components with broad distribution and design-in support.
The ACX series targets cost-sensitive, space-constrained automotive and industrial signal-switching applications, delivering integrated biasing and AEC-Q101 validation in compact SOT packages.
FAQ
What is the maximum allowable junction temperature for ACX143ZUQ-7R?
The absolute maximum junction temperature is +150°C, with continuous operation rated from –55°C to +150°C. Derating begins at +25°C ambient per the published thermal curve: power dissipation must be reduced linearly to zero at +150°C case temperature on a minimum-copper FR-4 board.
Can ACX143ZUQ-7R replace discrete transistor + resistor combinations in existing designs?
Yes-it is designed as a direct replacement for two separate pre-biased transistors. Pin mapping matches standard SOT363 complementary dual layouts, and the internal 4.7kΩ/47kΩ resistor values replicate common discrete configurations used for 3.3V/5V logic interfacing.
Is the -7R suffix related to tape-and-reel orientation only?
Yes-the "-7R" denotes 3,000-unit 7-inch reel packaging with devices rotated +180° in pocket tape. This orientation aids automated pick-and-place placement but does not affect electrical performance or marking; the "1Y4" top-side marking remains identical across all variants.
Does ACX143ZUQ-7R support bidirectional signal routing?
No-it functions as two unidirectional switches: Q1 (NPN) sources current from collector to emitter, Q2 (PNP) sinks current from emitter to collector. It is not a bilateral analog switch; signal routing must respect polarity-specific current flow paths defined in the schematic.
ACX143ZUQ-7R 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:
- 270mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
ACX143ZUQ-7R FAQ
1.How can I place an order for ACX143ZUQ-7R through Aetrix?
Please submit a Request for Quotation (RFQ) for ACX143ZUQ-7R 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 ACX143ZUQ-7R reliable?
The price and inventory of ACX143ZUQ-7R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ACX143ZUQ-7R is usually 5 days.
3.What payment methods are accepted for ACX143ZUQ-7R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ACX143ZUQ-7R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ACX143ZUQ-7R?
ACX143ZUQ-7R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ACX143ZUQ-7R 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 ACX143ZUQ-7R?
For technical support, including ACX143ZUQ-7R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ACX143ZUQ-7R requirements.
6.How does Aetrix verify that ACX143ZUQ-7R is sourced from the original manufacturer or authorized distributors?
All ACX143ZUQ-7R 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 ACX143ZUQ-7R meets industry standards.
7.What is the process for return or replacement of ACX143ZUQ-7R?
All ACX143ZUQ-7R units undergo pre-shipment inspection (PSI). If there is an issue with ACX143ZUQ-7R, 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 ACX143ZUQ-7R part is unused and in its original packaging.
Return procedure for ACX143ZUQ-7R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ACX143ZUQ-7R Tags
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SMUN5311DW1T1G
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PUMH9,115
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