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Nexperia USA Inc. PDTC144EU-QF
- Part No.:
- PDTC144EU-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
PDTC144EU-QF.pdf
- Description:
- TRANS PREBIAS NPN 50V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:6,807
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Product details
Overview
PDTC144EU-Q from Nexperia is an AEC-Q101-qualified NPN resistor-equipped transistor (RET) in SOT323 (SC-70) package, featuring integrated 47 kΩ input and feedback bias resistors (R1 = R2 = 47 kΩ), 50 V VCEO, 100 mA IO, and optimized for automotive digital switching applications such as IC input control and load switching.
For engineers reviewing the PDTC144EU-Q datasheet, PDTC144EU-Q pinout, PDTC144EU-Q application, or PDTC144EU-Q equivalent, this device serves as a drop-in, space-saving replacement for BC847-Q series transistors in digital logic interface circuits where built-in biasing reduces PCB area and assembly cost.
Technical Context
This RET integrates a monolithic NPN transistor with two precision laser-trimmed on-die resistors - R1 connected between base and input, R2 between base and emitter - enabling single-pin digital drive without external bias components. It operates with VI(on) = 1.6–3.0 V and VI(off) = 0.8–1.2 V at 25 °C, supporting TTL/CMOS-compatible switching.
The device is characterized for operation from −40 °C to +150 °C junction temperature, with hFE ≥ 80 at IC = 5 mA and VCE = 5 V, and VCE(sat) ≤ 150 mV at IC = 10 mA / IB = 0.5 mA, ensuring low-loss saturation in automotive signal routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; supports 24 V automotive rail interfacing with margin. |
| IO | 100 mA - Continuous output current capability; sufficient for driving LEDs, small relays, or logic inputs. |
| R1 | 47 kΩ (typ) - Input bias resistor value; sets base current for predictable turn-on with standard logic voltages. |
| R2/R1 | 1.0 (typ) - Unity bias ratio ensures stable DC operating point and immunity to β variation across temperature. |
| VCE(sat) | ≤ 150 mV at IC = 10 mA - Low saturation voltage minimizes power loss and self-heating in high-duty-cycle switching. |
| hFE | ≥ 80 at IC = 5 mA - Guaranteed current gain enables reliable switching with minimal drive current overhead. |
| fT | 230 MHz - Transition frequency of internal transistor; supports fast edge rates in digital interface applications. |
Pinout & Package
SOT323 (SC-70) plastic surface-mount package: 3-terminal, 2.0 mm × 1.25 mm × 0.95 mm body, 1.3 mm lead pitch, FR4-compatible footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base node) | Connected to R1; accepts logic-level drive directly-no external base resistor required. |
| 2 | Ground (emitter) | Emitter tied to system ground; provides return path for load current and R2 reference. |
| 3 | Output (collector) | Switched high-side output node; connects to load (e.g., LED anode or IC input pull-up). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Qualified for automotive-grade reliability per stress test standard-enables use in engine control, body electronics, and ADAS modules. |
| Integrated R1 + R2 bias network | Eliminates two discrete resistors, reducing BOM count, PCB area, and placement cost in high-volume SMT assembly. |
| VI(on)/VI(off) window | 1.6–3.0 V turn-on and 0.8–1.2 V turn-off thresholds ensure robust noise margin against supply ripple and crosstalk in 3.3 V/5 V systems. |
| Thermal resistance Rth(j-a) | 625 K/W on FR4 - Enables operation up to 150 °C junction temperature with natural convection cooling in compact layouts. |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input Stage |
|---|---|
|
Use Scenario: Level-shifting and isolation of 12 V/24 V sensor signals into 3.3 V microcontroller GPIOs. IC Role / Device Role / Timing Role: NPN switch configured as active-low level translator with built-in biasing. Use Value: Eliminates external resistor divider and protection diodes, reducing component count by ≥3 parts per channel. |
Use Scenario: Interfacing 24 V industrial fieldbus nodes to FPGA-based logic controllers. IC Role / Device Role / Timing Role: Digital input buffer with hysteresis-free switching and guaranteed VI(on)/VI(off) thresholds. Use Value: Supports >10 kHz signal edge rates (fT = 230 MHz) while maintaining AEC-Q101 reliability under vibration and thermal cycling. |
| LED Driver for Dashboard Indicators | Smart Sensor Power Enable Switch |
|
Use Scenario: Driving multiplexed segment LEDs in automotive instrument clusters. IC Role / Device Role / Timing Role: Low-saturation NPN switch controlling LED cathode current paths. Use Value: VCE(sat) ≤ 150 mV limits power dissipation to <1.5 mW per switch at 10 mA, enabling dense LED array layouts. |
Use Scenario: Enabling/disabling power to MEMS pressure or temperature sensors during sleep cycles. IC Role / Device Role / Timing Role: High-side load switch (with external P-channel FET) or low-side enable gate driver. Use Value: Built-in R1/R2 ensures clean turn-on/turn-off transitions without oscillation, critical for low-quiescent-current sensor subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN resistor-equipped transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847B-Q | Discrete NPN BJT without integrated resistors; requires external RB and RBE. | Higher BOM count and layout sensitivity; less suitable for ultra-compact or high-reliability automotive modules. | Select when fine-tuned biasing or higher hFE variability tolerance is needed. |
| PDTA144EU | PNP complement with identical R1/R2 values (47 kΩ), same SOT323 package, and matched thermal specs. | Used in complementary push-pull or high-side switching configurations where polarity inversion is required. | Select for dual-NPN/PNP designs requiring matched RET characteristics and footprint compatibility. |
Compared with BC847B-Q and PDTA144EU, PDTC144EU-Q delivers lowest assembly cost and smallest footprint for unidirectional low-side switching, while PDTA144EU enables symmetrical design reuse, and BC847B-Q offers greater bias flexibility at the expense of component count.
Availability
PDTC144EU-Q is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, dashboard LED drivers, and smart sensor power management requiring stable component supply and AEC-Q101 compliance.
Supply support for PDTC144EU-Q 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.
PDTC144EU-Q belongs to Nexperia's AEC-Q101-qualified Resistor-Equipped Transistor (RET) product line, engineered specifically to replace discrete BJT + resistor combinations in automotive digital interface and load-switching applications.
FAQ
Is PDTC144EU-Q pin-compatible with BC847B-Q?
No. PDTC144EU-Q uses a 3-pin SOT323 configuration with dedicated Input (pin 1), Ground (pin 2), and Output (pin 3), whereas BC847B-Q follows standard B-C-E pinout (1=E, 2=B, 3=C). Direct substitution requires PCB layout revision due to differing terminal assignments and internal resistor topology.
What is the maximum ambient temperature for continuous operation?
PDTC144EU-Q supports continuous operation up to +150 °C ambient temperature when mounted on FR4 PCB with standard footprint, as specified in its limiting values table; derating begins above 25 °C ambient per the 625 K/W thermal resistance curve, with full 100 mA rating maintained up to +85 °C ambient under typical conditions.
Can PDTC144EU-Q drive a 50 mA relay coil directly?
Yes. With IO = 100 mA rated output current and VCE(sat) ≤ 150 mV at 10 mA drive, the device safely switches 50 mA loads at 5 V or 12 V supply rails. Ensure coil flyback protection (e.g., parallel diode) is used, as the RET does not integrate clamp functionality.
Does PDTC144EU-Q support PWM dimming of LEDs?
Yes. Its fT = 230 MHz and fast VI(on)/VI(off) transition behavior support PWM frequencies up to 100 kHz without distortion; combined with low VCE(sat), it enables efficient, flicker-free LED dimming in automotive interior lighting applications.
PDTC144EU-QF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- 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):
- 47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 80 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 150mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- 230 MHz
- Power - Max:
- 200 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
PDTC144EU-QF FAQ
1.How can I place an order for PDTC144EU-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC144EU-QF 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 PDTC144EU-QF reliable?
The price and inventory of PDTC144EU-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC144EU-QF is usually 5 days.
3.What payment methods are accepted for PDTC144EU-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC144EU-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC144EU-QF?
PDTC144EU-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC144EU-QF 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 PDTC144EU-QF?
For technical support, including PDTC144EU-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC144EU-QF requirements.
6.How does Aetrix verify that PDTC144EU-QF is sourced from the original manufacturer or authorized distributors?
All PDTC144EU-QF 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 PDTC144EU-QF meets industry standards.
7.What is the process for return or replacement of PDTC144EU-QF?
All PDTC144EU-QF units undergo pre-shipment inspection (PSI). If there is an issue with PDTC144EU-QF, 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 PDTC144EU-QF part is unused and in its original packaging.
Return procedure for PDTC144EU-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC144EU-QF Tags
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