My Inquiry
My Account
Nexperia USA Inc. PDTC144EQBZ
- Part No.:
- PDTC144EQBZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- 3-XDFN Exposed Pad
- Datasheet:
-
PDTC144EQBZ.pdf
- Description:
- TRANS PREBIAS NPN 50V 0.1A 3DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,900
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PDTC144EQB from Nexperia is a 50 V, 100 mA NPN resistor-equipped transistor (RET) in a DFN1110D-3 (SOT8015) leadless SMD package with side-wettable flanks. It integrates 47 kΩ input and output bias resistors, delivers 80× DC current gain at 5 mA collector current, and achieves 100 mV collector-emitter saturation voltage at 10 mA/0.5 mA drive-enabling direct interface with 3.3 V logic for load switching in space-constrained digital control circuits.
For engineers reviewing the PDTC144EQB datasheet, PDTC144EQB pinout, PDTC144EQB application, or PDTC144EQB equivalent, this device serves as a drop-in replacement for BC847-based digital switches where board area, solder joint inspection, and component count reduction are critical-especially in portable consumer electronics and industrial I/O modules requiring AOI-compatible ultra-thin packaging.
Technical Context
The PDTC144EQB integrates a monolithic NPN transistor with two precision laser-trimmed on-die resistors (R1 = R2 = 47 kΩ) configured as a single-input, single-output bias network. Its internal topology eliminates external base resistors while maintaining predictable turn-on/off thresholds across temperature.
Designed for digital switching-not linear amplification-it operates in saturation/cutoff modes only, with VI(on) = 1.6–3.0 V and VI(off) = 0.8–1.2 V at IC = 100 µA, enabling robust noise immunity in 3.3 V microcontroller GPIO interfacing without additional level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum allowable collector-emitter voltage before breakdown; supports 24 V industrial bus switching with margin. |
| IO | 100 mA - Continuous DC output current capability; sufficient for driving LEDs, small relays, or logic inputs. |
| hFE | 80 - DC current gain at VCE = 5 V, IC = 5 mA; ensures reliable saturation with low base drive current. |
| VCE(sat) | 100 mV - Collector-emitter voltage in saturation at IC = 10 mA / IB = 0.5 mA; minimizes power loss and self-heating. |
| R1 / R2 | 47 kΩ / 47 kΩ - Integrated base bias resistors eliminate external components and reduce PCB footprint by ~1.1 mm². |
| Package | DFN1110D-3 (SOT8015) - 1.1 × 1.0 × 0.48 mm ultra-thin leadless package with side-wettable flanks for automated optical inspection (AOI) of solder joints. |
Pinout & Package
DFN1110D-3 (SOT8015) is a 3-terminal, leadless, ultra-thin surface-mount package with side-wettable flanks for AOI-compatible reflow soldering. Dimensions: 1.1 mm × 1.0 mm × 0.48 mm body height; 0.65 mm pitch; 0.5 mm max overall height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base) | Internal connection to R1; accepts logic-level voltage to enable transistor conduction. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; provides return path for load current and bias network reference. |
| 3 | Output (collector) | Switched high-side output node; connects to load (e.g., LED anode or relay coil) referenced to VCC. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias resistors | 47 kΩ R1 + 47 kΩ R2 eliminate need for two external SMT resistors, reducing BOM count and placement cost. |
| Ultra-low profile | 0.48 mm body height enables use in ultra-thin handheld devices and stacked PCB assemblies. |
| Side-wettable flanks | Exposed copper sidewalls allow automated optical inspection (AOI) of solder fillets-critical for high-reliability manufacturing. |
| Digital switching optimization | VI(on) = 1.6 V min and VI(off) = 0.8 V max ensure clean logic-level compatibility with 3.3 V MCUs without external pull-ups/downs. |
Applications
| LED Indicator Control | Microcontroller GPIO Expansion |
|---|---|
Use Scenario: Driving status LEDs on compact IoT sensor nodes where PCB real estate is constrained and assembly yield must be maximized. IC Role / Device Role: Single-transistor load switch replacing discrete BJT + two resistors, directly driven by MCU GPIO pins. Use Value: Reduces component count by 3 parts per channel and enables AOI-verified solder joints-cutting field failure rate in mass production. | Use Scenario: Expanding limited GPIO count on ARM Cortex-M0+ microcontrollers to control multiple peripheral enable lines. IC Role / Device Role: Level-shifted digital buffer isolating MCU outputs from higher-voltage peripherals (e.g., 5 V sensors or displays). Use Value: Eliminates need for external level shifters or MOSFETs; VI(on)/VI(off) thresholds match 3.3 V logic swing with 0.5 V noise margin. |
| Relay Driver Interface | Industrial Digital Input Conditioning |
Use Scenario: Switching 24 VDC coil relays in programmable logic controller (PLC) output modules with tight thermal constraints. IC Role / Device Role: Low-power, thermally efficient interface between 3.3 V FPGA I/O banks and inductive relay loads. Use Value: 100 mV VCE(sat) limits power dissipation to <1 mW at 10 mA, avoiding heatsinking in dense I/O card layouts. | Use Scenario: Converting noisy 24 V industrial field signals into clean 3.3 V logic levels for microcontroller input capture. IC Role / Device Role: Inverted digital buffer with built-in hysteresis via resistor network, providing ESD-tolerant signal conditioning. Use Value: VI(off) ≤ 1.2 V and VI(on) ≥ 1.6 V create >400 mV input hysteresis-rejecting common-mode transients on factory floor wiring. |
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 |
|---|---|---|---|
| PDTC124EQB | R1 = R2 = 22 kΩ; hFE = 60 at IC = 5 mA; VI(on) = 1.7 V min | Higher base current required; better suited for 5 V logic drive or higher-speed switching | Select when driving heavier loads (>20 mA) or interfacing with 5 V controllers. |
| BC847B | Discrete NPN BJT; no integrated resistors; hFE = 200–450; requires external base resistor network | Greater design flexibility but increases component count, layout area, and assembly cost | Select when precise gain control or analog operation is needed beyond digital switching. |
Compared with PDTC124EQB, PDTC144EQB offers higher input impedance and lower base drive demand for 3.3 V systems, while BC847B provides wider gain range and analog linearity at the cost of added passives and board space.
Availability
PDTC144EQB is available at Aetrix Electronics and suitable for LED indicator control, microcontroller GPIO expansion, and industrial digital input conditioning requiring stable component supply, AOI-compatible packaging, and consistent parametric performance across production batches.
Supply support for PDTC144EQB 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, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The PDTC144EQB belongs to Nexperia's resistor-equipped transistor (RET) family-engineered specifically to replace discrete BJT + resistor combinations in digital switching applications, prioritizing miniaturization, manufacturability, and cost reduction over analog performance.
FAQ
What is the maximum continuous collector current for PDTC144EQB?
The PDTC144EQB supports a maximum continuous collector current of 100 mA under standard FR4 PCB mounting conditions (single-sided, 35 µm copper). Derating applies above 25 °C ambient-power dissipation drops to 340 mW at 75 °C and 0 mW at 150 °C junction temperature.
Can PDTC144EQB be used with 1.8 V logic inputs?
No-PDTC144EQB has a minimum VI(on) of 1.6 V and typical VI(on) of 1.9 V at IC = 2 mA. At 1.8 V, conduction is marginal and highly temperature-dependent; it is not guaranteed to saturate reliably. Use PDTC114EQB (VI(on) = 1.8 V typ) or discrete solutions for true 1.8 V compatibility.
Does PDTC144EQB require an external flyback diode when switching inductive loads?
Yes-while the device withstands 50 V VCEO, it lacks integrated clamping. When switching relay coils or solenoids, a discrete 1N4148 or BAT54 Schottky diode must be placed across the load to suppress inductive kickback and prevent junction breakdown during turn-off.
Is the DFN1110D-3 package compatible with standard reflow profiles?
Yes-the SOT8015 package is qualified for JEDEC J-STD-020D-compliant lead-free reflow. Recommended peak temperature is 260 °C for ≤ 30 seconds; stencil thickness should be 0.1 mm with 0.34 mm × 0.34 mm solder paste apertures matching the side-wettable flank footprint.
PDTC144EQBZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 3-XDFN Exposed Pad
- 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:
- 100mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 100nA
- Frequency - Transition:
- 180 MHz
- Power - Max:
- 340 mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- DFN1110D-3
PDTC144EQBZ FAQ
1.How can I place an order for PDTC144EQBZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTC144EQBZ 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 PDTC144EQBZ reliable?
The price and inventory of PDTC144EQBZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTC144EQBZ is usually 5 days.
3.What payment methods are accepted for PDTC144EQBZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTC144EQBZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTC144EQBZ?
PDTC144EQBZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTC144EQBZ 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 PDTC144EQBZ?
For technical support, including PDTC144EQBZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTC144EQBZ requirements.
6.How does Aetrix verify that PDTC144EQBZ is sourced from the original manufacturer or authorized distributors?
All PDTC144EQBZ 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 PDTC144EQBZ meets industry standards.
7.What is the process for return or replacement of PDTC144EQBZ?
All PDTC144EQBZ units undergo pre-shipment inspection (PSI). If there is an issue with PDTC144EQBZ, 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 PDTC144EQBZ part is unused and in its original packaging.
Return procedure for PDTC144EQBZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTC144EQBZ 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
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…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
