My Inquiry
My Account
Diodes Incorporated ADTC144VCAQ-13
- Part No.:
- ADTC144VCAQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADTC144VCAQ-13.pdf
- Description:
- TRANS PREBIAS NPN 50V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADTC144VCAQ from Diodes Incorporated is an AEC-Q101 qualified NPN pre-biased small-signal transistor in SOT23 package, featuring integrated 47 kΩ and 10 kΩ bias resistors, 50 V VCC, 30 mA output current, and 0.1–0.3 V VO(on) at 10 mA/0.5 mA drive-designed for automotive signal switching in body control modules, LED drivers, and sensor interface circuits.
For engineers reviewing the ADTC144VCAQ datasheet, ADTC144VCAQ pinout, ADTC144VCAQ application, or ADTC144VCAQ equivalent, key selection criteria include guaranteed turn-on/off thresholds (VI(on) ≤ 5.0 V, VI(off) ≥ 1.0 V), ±30% R1 tolerance, ±20% R2/R1 ratio tolerance, and IATF 16949-certified manufacturing for automotive-grade reliability.
Technical Context
This PBT integrates emitter-grounded NPN topology with two monolithically embedded resistors (R1 = 47 kΩ, R2 = 10 kΩ) to eliminate external bias components. It operates as a digital switch with defined logic-compatible input thresholds and low saturation voltage, enabling direct microcontroller GPIO interfacing without level-shifting.
The device delivers DC current gain (GI) ≥ 33 at 5 mA output, supports 250 MHz fT, and maintains stable performance across −55°C to +150°C ambient-validated under AEC-Q101 stress tests including HTGB, HTRB, and temperature cycling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Max | 50 V - supports 12 V/24 V automotive supply rails with margin for load dump transients |
| VI(on) Max | 5.0 V - ensures reliable turn-on with standard 3.3 V or 5 V logic outputs |
| VI(off) Min | 1.0 V - guarantees robust noise immunity and off-state retention |
| VO(on) | 0.1–0.3 V at IO/Il = 10 mA/0.5 mA - enables low-loss switching in power-sensitive nodes |
| GI Min | 33 at VO = 5 V, IO = 5 mA - provides predictable current amplification for feedback or driver stages |
| R1 / R2 | 47 kΩ / 10 kΩ - sets fixed base bias ratio for stable saturation without external tuning |
| PD | 310 mW on FR-4 board - defines thermal derating envelope for continuous operation up to +125°C ambient |
Pinout & Package
Package: SOT23 - surface-mount plastic package with matte tin-plated leads, UL 94V-0 rating, moisture sensitivity level 1, and 0.008 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Ground reference terminal | Connected internally to substrate ground; serves as common return for bias network and output path |
| 2 (Base) | Input node | Internally connected to R1–R2 junction; accepts logic-level input to control transistor conduction |
| 3 (Collector) | Switched output terminal | Drives load between VCC and collector; sinks up to 30 mA with <0.3 V saturation drop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use per stress test requirements including HTGB, HTRB, and ESD (HBM ≥ 8 kV) |
| Integrated bias network | Monolithic 47 kΩ + 10 kΩ resistor pair eliminates 2 external components and PCB layout uncertainty |
| Green construction | Halogen- and antimony-free molding compound (<900 ppm Br, <900 ppm Cl, <1000 ppm Sb) compliant with RoHS 3 |
| Thermal robustness | RθJA = 403 °C/W on minimum-copper FR-4 - enables operation up to +150°C junction temperature |
| Logic-compatible thresholds | Guaranteed VI(on) ≤ 5.0 V and VI(off) ≥ 1.0 V ensure interoperability with MCU GPIOs without pull-up/down ambiguity |
Applications
| Automotive Body Control Module | LED Driver Interface |
|---|---|
Use Scenario: Switching 12 V indicator LEDs in door modules and dashboard panels. IC Role / Device Role / Timing Role: Low-side digital switch controlled by 3.3 V microcontroller GPIO. Use Value: Eliminates need for discrete base resistor and reduces BOM count while maintaining AEC-Q101 compliance. |
Use Scenario: Driving high-brightness status LEDs in ADAS camera housings. IC Role / Device Role / Timing Role: Constant-current sink with fast turn-on (<100 ns typical) and low VCE(sat). Use Value: Enables direct GPIO control without level shifters and sustains 100% duty cycle at 25°C ambient. |
| Sensor Signal Conditioning | Power Sequencing Control |
Use Scenario: Enabling/disabling analog sensor supply rails in engine control units. IC Role / Device Role / Timing Role: High-side enable switch (with external pull-up) for 5 V sensor biasing. Use Value: Provides clean rail enable with <1 µA leakage in off-state and <0.3 V dropout during active regulation. |
Use Scenario: Controlling power-up sequence of infotainment SoC peripherals. IC Role / Device Role / Timing Role: Delayed enable gate triggered by system reset signal. Use Value: Delivers deterministic timing via RC network on base pin, leveraging built-in R1/R2 for repeatable delay accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar pre-biased transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NSV144VCAQ | Same die, identical R1/R2 values and AEC-Q101 qualification; differs only in marking code and tape/reel packaging | No functional difference; suitable for same automotive designs requiring PPAP documentation | Select when sourcing from alternate Diodes distribution channels with NSV prefix inventory |
| DTA144ECA-7-F | NPN pre-biased with 47 kΩ/47 kΩ resistor ratio; lacks AEC-Q101 certification and has higher VO(on) (0.3 V typ) | Restricted to industrial or consumer applications; not approved for automotive safety-critical systems | Use only for cost-sensitive non-automotive designs where AEC-Q101 is not mandated |
Compared with NSV144VCAQ, ADTC144VCAQ offers identical electrical behavior but distinct traceability for automotive PPAP; versus DTA144ECA-7-F, it adds AEC-Q101 validation and tighter VO(on) spec-critical for low-voltage rail integrity in modern vehicle ECUs.
Availability
ADTC144VCAQ is available at Aetrix Electronics and suitable for automotive body control modules, LED driver interfaces, sensor signal conditioning, and power sequencing control requiring stable component supply and full AEC-Q101 traceability.
Supply support for ADTC144VCAQ 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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design, manufacturing, and test facilities certified to IATF 16949 for automotive-grade products.
The ADTC144VCAQ belongs to Diodes' AEC-Q101-qualified pre-biased transistor family, engineered specifically for automotive signal switching applications where space, reliability, and qualification compliance are mandatory.
FAQ
Is ADTC144VCAQ pin-compatible with standard SOT23 NPN transistors?
No-ADTC144VCAQ uses a dedicated pinout: Pin 1 = Emitter, Pin 2 = Base (with internal R1–R2 junction), Pin 3 = Collector. Unlike generic SOT23 NPNs, its base terminal is not directly accessible; it functions as a 3-terminal switch, not a bare transistor. Layout must follow the marked "2U9" orientation and recommended pad dimensions from Diodes' SOT23 outline.
What is the maximum continuous output current at 105°C ambient?
At TA = 105°C, derating from the 310 mW PD rating yields ~180 mW max dissipation. With VO(on) ≤ 0.3 V, this supports ≤ 600 mA peak pulsed current but limits continuous IO to approximately 12 mA to maintain TJ ≤ 150°C on a minimum-copper FR-4 board per Figure 1 derating curve.
Does ADTC144VCAQ support PWM dimming of LEDs?
Yes-its 250 MHz fT and sub-100 ns turn-on/turn-off times (per typical characteristics) support PWM frequencies up to 20 kHz without distortion. The low VO(on) minimizes conduction loss, and the integrated bias network ensures consistent duty-cycle fidelity across temperature without external RC tuning.
Can ADTC144VCAQ be used in high-humidity under-hood environments?
Yes-its SOT23 package meets J-STD-020 Moisture Sensitivity Level 1 (unlimited floor life at ≤30°C/60% RH), and the "Green" molding compound provides UL 94V-0 flammability rating and resistance to thermal cycling from −55°C to +150°C-validated per AEC-Q101 for under-hood deployment in engine compartments and transmission control units.
ADTC144VCAQ-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:
- NPN - Pre-Biased
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 47 kOhms
- Resistor - Emitter Base (R2):
- 10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 33 @ 5mA, 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
ADTC144VCAQ-13 FAQ
1.How can I place an order for ADTC144VCAQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADTC144VCAQ-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 ADTC144VCAQ-13 reliable?
The price and inventory of ADTC144VCAQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADTC144VCAQ-13 is usually 5 days.
3.What payment methods are accepted for ADTC144VCAQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADTC144VCAQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADTC144VCAQ-13?
ADTC144VCAQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADTC144VCAQ-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 ADTC144VCAQ-13?
For technical support, including ADTC144VCAQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADTC144VCAQ-13 requirements.
6.How does Aetrix verify that ADTC144VCAQ-13 is sourced from the original manufacturer or authorized distributors?
All ADTC144VCAQ-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 ADTC144VCAQ-13 meets industry standards.
7.What is the process for return or replacement of ADTC144VCAQ-13?
All ADTC144VCAQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with ADTC144VCAQ-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 ADTC144VCAQ-13 part is unused and in its original packaging.
Return procedure for ADTC144VCAQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADTC144VCAQ-13 Tags
-
MUN5211T1G
onsemi
-
DTC043ZEBTL
Rohm Semiconductor
-
DTC114EKAT146
Rohm Semiconductor
-
DDTD113ZC-7-F
Diodes Incorporated
-
DRDNB16W-7
Diodes Incorporated
-
PDTC114ET,215
Nexperia USA Inc.
-
PDTC143ZT,215
Nexperia USA Inc.
-
PDTC143ET,215
Nexperia USA Inc.
-
PDTC143XT,215
Nexperia USA Inc.
-
MMUN2211LT1G
onsemi
-
PDTC144ET,215
Nexperia USA Inc.
-
PDTC124ET,215
Nexperia USA Inc.
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
