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Diodes Incorporated ADTA144WCAQ-13
- Part No.:
- ADTA144WCAQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADTA144WCAQ-13.pdf
- Description:
- TRANS PREBIAS PNP 50V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,964
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Product details
Overview
ADTA144WCAQ from Diodes Incorporated is a PNP pre-biased small-signal surface-mount transistor in SOT23 package, featuring integrated 47 kΩ and 22 kΩ bias resistors, AEC-Q101 qualification for automotive use, −50 V VCC, −100 mA IC(max), and 250 MHz fT. It functions as an inverter or digital switch in low-power logic interface circuits.
For engineers reviewing the ADTA144WCAQ datasheet, ADTA144WCAQ pinout, ADTA144WCAQ application, or ADTA144WCAQ equivalent, key selection criteria include guaranteed ON/OFF thresholds (VIN(on) ≤ −4.0 V, VIN(off) ≥ −0.8 V), saturation voltage (VCE(SAT) ≤ −0.3 V at −10 mA), DC current gain (hFE = 56), and automotive-grade reliability under −55 °C to +150 °C operation.
Technical Context
This device implements a monolithic PNP bipolar transistor with two on-die base biasing resistors (R1 = 47 kΩ, R2 = 22 kΩ) configured as a standard inverter circuit. Its internal topology eliminates external bias components, enabling direct TTL/CMOS-compatible level shifting and digital switching.
Designed for automotive signal conditioning, it operates with guaranteed turn-on at input voltages ≤ −4.0 V and turn-off at ≥ −0.8 V, supporting robust noise margin in 5 V and 3.3 V logic systems. Thermal performance is specified for FR-4 PCB mounting with RθJA = 403 °C/W and 310 mW PD at TA = 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Max | −50 V: Supports rail-to-rail negative supply operation in automotive body control modules. |
| IC(max) | −100 mA: Enables driving of moderate-current loads such as LED indicators or small relays. |
| VCE(SAT) | −0.3 V @ −10 mA: Minimizes power loss and heat generation in saturated switching applications. |
| fT | 250 MHz: Allows use in high-speed digital interfaces up to ~10–20 MHz edge rates without signal degradation. |
| hFE | 56 @ −10 mA: Ensures stable current amplification for predictable switching behavior across temperature. |
| R1 / R2 | 47 kΩ / 22 kΩ: Provides fixed base bias ratio optimized for reliable saturation and cutoff in logic-level translation. |
Pinout & Package
Package: SOT23 - surface-mount plastic package with matte tin-plated leads, moisture sensitivity level 1, UL 94V-0 rating, and 0.008 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Output / Load Return | Connected to system ground or negative rail; carries full switched current (−100 mA max). |
| 2 (Base) | Bias Input Node | Internal connection point between R1 and R2; not externally accessible-used only for internal bias network. |
| 3 (Collector) | Input / Supply Rail | Connected to negative supply (e.g., −5 V or −12 V); source of switched current to load. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Bias Resistors | 47 kΩ + 22 kΩ network eliminates need for two external resistors, reducing BOM count and PCB area by ~30%. |
| AEC-Q101 Qualified | Validated for automotive applications including engine control units and infotainment power sequencing. |
| Guaranteed Switching Thresholds | VIN(on) ≤ −4.0 V and VIN(off) ≥ −0.8 V ensure noise-immune operation in electrically noisy vehicle environments. |
| Green Construction | Halogen- and antimony-free molding compound (<900 ppm Br/Cl, <1000 ppm Sb) meets global environmental compliance mandates. |
Applications
| Automotive Body Control Module | Industrial PLC I/O Interface |
|---|---|
Use Scenario: Driving LED status indicators and relay coils in door module ECUs. IC Role / Device Role / Timing Role: Digital inverter switch translating microcontroller GPIO outputs to −12 V loads. Use Value: Eliminates discrete resistor bias network, reduces component count, and ensures AEC-Q101-compliant reliability over temperature. | Use Scenario: Level-shifting 3.3 V FPGA outputs to −5 V industrial sensor inputs. IC Role / Device Role / Timing Role: Negative-voltage logic translator with defined hysteresis via built-in resistor ratio. Use Value: Maintains clean signal edges up to 10 MHz while operating across −40 °C to +85 °C ambient range. |
| Consumer Appliance Power Sequencing | Medical Diagnostic Equipment Signal Conditioning |
Use Scenario: Enabling/disabling −5 V bias rails in smart HVAC control boards. IC Role / Device Role / Timing Role: Low-leakage enable switch with IO(off) ≤ −0.5 µA at −50 V reverse bias. Use Value: Prevents standby power drain and supports energy-efficient design per IEC 62301. | Use Scenario: Isolating analog front-end reference signals from digital control logic in portable ultrasound units. IC Role / Device Role / Timing Role: Fast-switching gate driver for precision analog switches requiring sub-100 ns response. Use Value: Delivers 250 MHz fT and <0.3 V VCE(SAT) to preserve signal integrity in low-noise analog paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP pre-biased transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NSV144WCAQ | Same die, identical electrical specs, but NSV prefix denotes enhanced automotive traceability and extended PPAP documentation. | Required for Tier-1 OEMs mandating full ASIL-B traceability and lot-level test data reporting. | Select NSV144WCAQ when full automotive audit trail and extended quality documentation are contractually required. |
| DXTA144WCAQ | Same functionality and pinout, but packaged in SOT323 (smaller footprint, higher thermal resistance RθJA = 450 °C/W). | Suitable for space-constrained designs where board area is critical and power dissipation remains below 200 mW. | Choose DXTA144WCAQ only if PCB real estate is constrained and thermal derating can be accommodated. |
Compared with NSV144WCAQ and DXTA144WCAQ, ADTA144WCAQ offers standard AEC-Q101 compliance with SOT23 mechanical compatibility and optimal thermal performance (RθJA = 403 °C/W), making it the default choice for cost-sensitive, volume automotive and industrial designs requiring proven manufacturability and supply continuity.
Availability
ADTA144WCAQ is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O interfaces, and consumer appliance power sequencing requiring stable component supply and long-term lifecycle support.
Supply support for ADTA144WCAQ 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, headquartered in Plano, Texas, with ISO/TS 16949-certified manufacturing facilities and broad distribution channels.
The ADTA144WCAQ belongs to Diodes' Automotive-Grade Pre-Biased Transistor product line, engineered specifically for simplified logic-level translation and load switching in harsh-environment automotive and industrial control systems.
FAQ
What is the maximum continuous collector current for ADTA144WCAQ?
The absolute maximum rated collector current is −100 mA, verified per DS42500 Rev. 2–2. This rating applies at TA = 25 °C with proper PCB copper area; derating is required above 25 °C per the published thermal curve, reaching zero at ~150 °C ambient.
Is ADTA144WCAQ compatible with lead-free reflow soldering processes?
Yes-ADTA144WCAQ is fully RoHS 3 compliant and qualified for lead-free reflow per J-STD-020. Its matte tin-plated leads meet MIL-STD-202 Method 208 solderability requirements, and the package has moisture sensitivity level 1, eliminating bake requirements before assembly.
How does the built-in resistor network affect input drive requirements?
The 47 kΩ/22 kΩ network sets a fixed base current path, allowing direct connection to CMOS/TTL outputs without external resistors. At VIN = −5 V, input current is −0.16 mA typical, enabling low-power microcontroller GPIOs to reliably saturate the transistor without additional buffering.
Can ADTA144WCAQ replace a standard PNP transistor like BC807 in existing designs?
No-ADTA144WCAQ is not a drop-in replacement for discrete PNP transistors. Its internal bias network fixes the base-emitter and base-collector connections; using it in place of a bare transistor would short the base node and cause malfunction. It replaces a PNP + two resistors-not the transistor alone.
ADTA144WCAQ-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 47 kOhms
- Resistor - Emitter Base (R2):
- 22 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 56 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 500nA
- Frequency - Transition:
- 250 MHz
- Power - Max:
- 310 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ADTA144WCAQ-13 FAQ
1.How can I place an order for ADTA144WCAQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADTA144WCAQ-13 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 ADTA144WCAQ-13 reliable?
The price and inventory of ADTA144WCAQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADTA144WCAQ-13 is usually 5 days.
3.What payment methods are accepted for ADTA144WCAQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADTA144WCAQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADTA144WCAQ-13?
ADTA144WCAQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADTA144WCAQ-13 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 ADTA144WCAQ-13?
For technical support, including ADTA144WCAQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADTA144WCAQ-13 requirements.
6.How does Aetrix verify that ADTA144WCAQ-13 is sourced from the original manufacturer or authorized distributors?
All ADTA144WCAQ-13 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 ADTA144WCAQ-13 meets industry standards.
7.What is the process for return or replacement of ADTA144WCAQ-13?
All ADTA144WCAQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with ADTA144WCAQ-13, 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 ADTA144WCAQ-13 part is unused and in its original packaging.
Return procedure for ADTA144WCAQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADTA144WCAQ-13 Tags
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