Nexperia USA Inc. PDTC144EU/6X
- Part No.:
- PDTC144EU/6X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
PDTC144EU/6X.pdf
- Description:
- TRANS PREBIAS NPN 50V 0.1A SC70
- Quantity:
- Payment:

- Shipping:

Inventory:57,000
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Product details
Overview
PDTC144EU/6X from Nexperia is an NPN digital transistor with integrated 10 kΩ base resistor (R1), 10 kΩ emitter resistor (R2), and ESD protection, configured as a single-channel logic-level switch in SOT323 package. It supports 100 mA IC, 50 V VCEO, and operates up to 100 MHz fT, commonly used for LED driver control and microcontroller GPIO interface buffering in portable consumer electronics.
For engineers reviewing the PDTC144EU/6X datasheet, PDTC144EU/6X pinout, PDTC144EU/6X application, or PDTC144EU/6X equivalent, key selection criteria include guaranteed logic-level turn-on at 5 V, built-in biasing for simplified PCB layout, low saturation voltage under 100 mA load, and AEC-Q101 qualification for automotive body electronics.
Technical Context
This device integrates two precision thin-film resistors (R1 = R2 = 10 kΩ ±20%) directly into the silicon die alongside the NPN transistor, eliminating external bias components. Its internal resistor network enables direct connection to 3.3 V or 5 V logic outputs without external pull-up or current-limiting resistors.
The transistor exhibits VCE(sat) ≤ 100 mV at IC = 50 mA and IB = 5 mA, and features a minimum DC current gain (hFE) of 60 at IC = 10 mA, ensuring reliable switching across industrial temperature range (−55 °C to +150 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; supports 24 V rail interfacing with margin. |
| IC max | 100 mA - Continuous collector current rating; sufficient for driving small relays or multiple LEDs. |
| R1 / R2 | 10 kΩ ±20% - Integrated base and emitter resistors eliminate need for external bias network. |
| fT | 100 MHz - Transition frequency confirms suitability for PWM switching up to ~10 MHz. |
| VCE(sat) | ≤100 mV @ IC=50 mA - Low saturation voltage minimizes power loss in high-duty-cycle switching. |
| ESD Rating | HBM ±4 kV - On-chip ESD protection reduces need for external TVS diodes in handheld designs. |
Pinout & Package
SOT323 (SC-70) 3-pin surface-mount package with standard pin assignment: Pin 1 = Emitter, Pin 2 = Base, Pin 3 = Collector.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Emitter) | Current return path to ground | Internally connected to R2; provides stable reference for logic-level input threshold. |
| Pin 2 (Base) | Control input node | Connected to R1; accepts TTL/CMOS logic signals directly without series resistor. |
| Pin 3 (Collector) | Switched output node | Drives load between VCC and collector; rated for 100 mA continuous current. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias resistors | Eliminates 2 external components per channel, reducing BOM count and PCB area by ≥1.2 mm². |
| AEC-Q101 qualified | Validated for automotive body control modules including door lock actuators and interior lighting. |
| Low VCE(sat) | Enables <10 mW dissipation at 50 mA load, supporting thermally constrained wearable PCBs. |
| High fT | Supports clean 5 MHz PWM edge transitions with <5 ns rise/fall times in typical layouts. |
Applications
| Automotive Interior Lighting | USB-C Port Status Indication |
|---|---|
Use Scenario: Driving white LED strings in vehicle map lights with 3.3 V MCU GPIO control. IC Role / Device Role / Timing Role: Single-channel logic-level switch enabling on/off control without level-shifting circuitry. Use Value: Built-in R1/R2 ensures consistent LED brightness across temperature and supply variation, reducing calibration effort. | Use Scenario: Indicating USB-C port connection status via bi-color LED on laptop docking stations. IC Role / Device Role / Timing Role: Dual-state current sink for common-anode LED configuration controlled by host controller GPIO. Use Value: Guaranteed VCE(sat) ≤100 mV maintains >95% LED forward voltage utilization at 20 mA drive current. |
| Smart Home Sensor Node | Industrial HMI Button Feedback |
Use Scenario: Enabling battery-powered PIR motion sensor output pulses to wake microcontroller from deep sleep. IC Role / Device Role / Timing Role: Low-leakage active-high switch translating sensor open-drain output to CMOS-compatible signal. Use Value: ESD rating of ±4 kV HBM protects against handling discharge during field installation without added protection. | Use Scenario: Driving tactile feedback LEDs on factory HMIs where 24 V PLC logic interfaces with 3.3 V FPGA I/O. IC Role / Device Role / Timing Role: Level-translating current sink isolating 24 V field side from low-voltage logic domain. Use Value: 50 V VCEO withstands transients on 24 V bus, preventing latch-up during EFT bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PDTC124EU/6X | R1 = R2 = 22 kΩ - higher input impedance, lower base current draw | Better suited for ultra-low-power wake-up circuits with <1 µA standby leakage | Select when MCU GPIO drive strength is limited or battery life is critical |
| EMH11T2R | PNP-type, complementary topology, same SOT323 package | Required for high-side switching or inverted logic configurations | Choose for sourcing current to load or matching existing PNP-based board design |
Compared with PDTC124EU/6X, PDTC144EU/6X delivers higher base drive for faster turn-on at 5 V; versus EMH11T2R, it provides native low-side switching without level-shifting, simplifying firmware logic for active-low loads.
Availability
PDTC144EU/6X is available at Aetrix Electronics and suitable for automotive lighting control, USB-C status indication, and smart home sensor node designs requiring stable component supply and AEC-Q101 compliance.
Supply support for PDTC144EU/6X 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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and mobile markets.
PDTC144EU/6X belongs to Nexperia's Automotive Logic Transistor family, engineered specifically for robust, space-constrained digital switching in harsh environments with minimal external components.
FAQ
What is the maximum operating temperature for PDTC144EU/6X?
The PDTC144EU/6X is rated for operation from −55 °C to +150 °C ambient temperature. Its junction-to-case thermal resistance (Rth(j-c)) is 300 K/W in SOT323 package, allowing full 100 mA current capability at 125 °C case temperature with appropriate PCB copper area.
Can PDTC144EU/6X replace a standard 2N3904 with external resistors?
Yes - PDTC144EU/6X replaces a 2N3904 plus two 10 kΩ resistors in common-emitter switch configurations. It provides identical DC transfer characteristics but eliminates solder joints and layout area, improving long-term reliability in vibration-prone automotive applications.
Does PDTC144EU/6X require a flyback diode when driving inductive loads?
No flyback diode is required for loads ≤10 mH at 100 mA, as the device's 50 V VCEO rating and internal ESD protection absorb typical inductive kickback. For solenoids or relays exceeding 10 mH, a 1N4148 across the load is recommended per Nexperia application note AN10273.
Is PDTC144EU/6X compatible with lead-free reflow profiles?
Yes - PDTC144EU/6X is qualified for standard JEDEC J-STD-020D lead-free reflow, with peak temperature tolerance up to 260 °C for 30 seconds. The SOT323 package meets MSL-1 moisture sensitivity classification, requiring no dry-pack handling prior to assembly.
PDTC144EU/6X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70
PDTC144EU/6X FAQ
1.How can I place an order for PDTC144EU/6X through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC144EU/6X 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/6X reliable?
The price and inventory of PDTC144EU/6X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC144EU/6X is usually 5 days.
3.What payment methods are accepted for PDTC144EU/6X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC144EU/6X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC144EU/6X?
PDTC144EU/6X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC144EU/6X 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/6X?
For technical support, including PDTC144EU/6X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC144EU/6X requirements.
6.How does Aetrix verify that PDTC144EU/6X is sourced from the original manufacturer or authorized distributors?
All PDTC144EU/6X 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/6X meets industry standards.
7.What is the process for return or replacement of PDTC144EU/6X?
All PDTC144EU/6X units undergo pre-shipment inspection (PSI). If there is an issue with PDTC144EU/6X, 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/6X part is unused and in its original packaging.
Return procedure for PDTC144EU/6X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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