My Inquiry
My Account
NXP Semiconductors PDTA144TU,115
- Part No.:
- PDTA144TU,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- -
- Description:
- TRANS PNP W/RES 50V SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:131,980
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PDTA144TU,115 from Nexperia is a PNP resistor-equipped transistor with integrated 47 kΩ base bias resistor (R1), open R2 configuration, −50 V VCEO, −100 mA IO, and SOT323 (SC-70) package - used for compact logic-level switching in space-constrained interface circuits such as microcontroller GPIO drivers.
For engineers reviewing the PDTA144TU,115 datasheet, PDTA144TU,115 pinout, PDTA144TU,115 application, or PDTA144TU,115 equivalent, key selection criteria include verified PNP digital switch behavior, guaranteed R1 tolerance (33–61 kΩ), thermal resistance (625 K/W), SOT323 footprint compatibility, and absence of external base resistors in load-driving configurations.
Technical Context
This device integrates a single PNP bipolar junction transistor with a precision laser-trimmed 47 kΩ input resistor (R1) connected between base and emitter; R2 is unconnected (open), enabling direct high-side switch operation without external pull-up components. It operates as a digital on/off switch rather than a linear amplifier.
Designed for DC-coupled logic interfacing, it supports VCE = −5 V at IC = −1 mA with hFE ≥ 100, and achieves VCE(sat) ≤ −150 mV at IC = −10 mA / IB = −0.5 mA - confirming robust saturation under typical MCU drive conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - Maximum safe collector-emitter reverse voltage before breakdown in open-base configuration. |
| IO | −100 mA - Absolute maximum continuous DC output current capability at Tamb ≤ 25 °C. |
| R1 | 47 kΩ (33–61 kΩ range) - Integrated base-emitter bias resistor enabling single-resistor logic-level drive. |
| VCE(sat) | ≤ −150 mV at IC = −10 mA / IB = −0.5 mA - Ensures low conduction loss in saturated switching mode. |
| Rth(j-a) | 625 K/W - Thermal resistance from junction to ambient in free air, defining power derating in SOT323 layout. |
| hFE | ≥ 100 at VCE = −5 V, IC = −1 mA - Confirms sufficient current gain for reliable digital switching margin. |
Pinout & Package
Package: SOT323 (SC-70), plastic surface-mounted package; 3 leads; body dimensions 2.1 × 1.25 × 0.95 mm per JEITA outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Base) | Input control node | Connected internally to R1; accepts logic-high (low-voltage) signal to turn on PNP switch. |
| 2 (Emitter) | Reference terminal | Connected to supply rail (e.g., +3.3 V); forms common reference for R1 and transistor emitter. |
| 3 (Collector) | Switched output node | Drives load to ground when active; polarity inverted relative to base input due to PNP topology. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in 47 kΩ base-emitter resistor | Eliminates need for external biasing components, reducing BOM count by one resistor per switch channel. |
| Guaranteed R1 tolerance (33–61 kΩ) | Ensures consistent turn-on threshold across production lots without calibration or trimming. |
| SOT323 footprint compatibility | Enables high-density placement in portable electronics where board area is constrained to < 2.7 mm² per device. |
| −150 mV VCE(sat) at rated current | Minimizes power dissipation (< 1.5 mW at 10 mA) and avoids thermal runaway in sustained switching. |
Applications
| Microcontroller GPIO Driver | Level-Shifting Interface |
|---|---|
Use Scenario: Driving LED indicators or small relays from 1.8 V/3.3 V MCU outputs with limited sink current capability. IC Role / Device Role / Timing Role: PNP digital switch providing active-high enable control with inverted logic polarity. Use Value: Eliminates discrete base resistor, reduces PCB area by 1.2 mm² per channel, and ensures stable turn-on at 0.8 V input threshold. |
Use Scenario: Translating 1.8 V logic signals to 5 V domains in mixed-voltage systems like USB peripheral controllers. IC Role / Device Role / Timing Role: Voltage-level translator operating in saturated switch mode with sub-100 ns propagation delay. Use Value: Achieves clean high-to-low transition without external pull-ups; maintains < 10 µA quiescent current in off-state. |
| Low-Power Sensor Enable Switch | Compact Inverter Circuit |
Use Scenario: Enabling/disabling analog sensors (e.g., temperature or humidity ICs) during sleep cycles to minimize system standby current. IC Role / Device Role / Timing Role: High-side power switch controlling VDD rail to sensor IC with fast turn-off leakage control. Use Value: ICEO ≤ −1 µA at −30 V ensures < 50 nA off-state leakage, extending battery life in IoT endpoints. |
Use Scenario: Building compact NOT gates in space-limited PCB sections where discrete transistors and resistors are impractical. IC Role / Device Role / Timing Role: Single-component inverter with defined logic threshold and rail-to-rail swing. Use Value: Delivers full −5 V output swing with < 200 mV hysteresis, eliminating need for dual-transistor complementary pair. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP digital switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PDTC144TU,115 | NPN complement; same package, R1 = 47 kΩ, but requires active-low input and sinks current instead of sourcing. | Used where load connects to VCC and output must pull down (e.g., N-channel MOSFET gate driver). | Select when circuit topology demands low-side switching or inverted input logic compatibility. |
| EMZ7T2R | PNP RET with R1 = 10 kΩ, R2 = 10 kΩ; higher base current, lower VCE(sat) (−100 mV), SOT-363 package. | Supports higher-speed switching (> 10 MHz) and tighter saturation in high-current (−200 mA) loads. | Choose for faster edge rates or when driving heavier capacitive loads like display segment drivers. |
Compared with PDTC144TU,115 and EMZ7T2R, PDTA144TU,115 offers optimal balance of low component count, predictable 47 kΩ bias, and minimal footprint - making it preferred for cost-sensitive, space-constrained 3.3 V logic interfaces where moderate speed suffices.
Availability
PDTA144TU,115 is available at Aetrix Electronics and suitable for microcontroller GPIO drivers, level-shifting interfaces, and low-power sensor enable switches requiring stable component supply and long-term industrial availability.
Supply support for PDTA144TU,115 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 leader in high-volume discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.
The PDTA144TU,115 belongs to Nexperia's resistor-equipped transistor (RET) product line, engineered specifically for simplifying digital switching designs by integrating bias resistors into standard SOT packages.
FAQ
What is the function of R₂ in PDTA144TU,115?
R₂ is open (unconnected) in this part - confirmed in the "Quick Reference Data" and "Characteristics" sections of the official datasheet. This configuration allows the device to operate as a simple base-driven PNP switch without emitter feedback, optimizing it for direct logic-level control with minimal external components.
Can PDTA144TU,115 replace a standard PNP transistor like BC807?
No - PDTA144TU,115 is not a drop-in replacement for BC807 because it includes an internal 47 kΩ base-emitter resistor and lacks base terminal accessibility. Using it in place of a bare transistor would cause incorrect biasing unless the external circuit is redesigned to account for the fixed R₁ network and missing base connection.
Is reflow soldering required for PDTA144TU,115?
Yes - the datasheet explicitly states "Reflow soldering is the only recommended soldering method" for all SOT packages in this series, including SOT323. Wave or hand-soldering may exceed thermal limits and compromise reliability, especially given the 150 °C maximum junction temperature rating.
What is the maximum operating ambient temperature for continuous use?
The device supports continuous operation from −65 °C to +150 °C ambient, per the "Limiting Values" table. However, at elevated temperatures, power dissipation must be derated using the 625 K/W thermal resistance value - e.g., at 85 °C ambient, maximum allowable Ptot drops to ~104 mW to maintain Tj ≤ 150 °C.
PDTA144TU,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- -
- Current - Collector (Ic) (Max):
- -
- Voltage - Collector Emitter Breakdown (Max):
- -
- Resistor - Base (R1):
- -
- Resistor - Emitter Base (R2):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- -
- Vce Saturation (Max) @ Ib, Ic:
- -
- Current - Collector Cutoff (Max):
- -
- Frequency - Transition:
- -
- Power - Max:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
PDTA144TU,115 FAQ
1.How can I place an order for PDTA144TU,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDTA144TU,115 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 PDTA144TU,115 reliable?
The price and inventory of PDTA144TU,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDTA144TU,115 is usually 5 days.
3.What payment methods are accepted for PDTA144TU,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDTA144TU,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDTA144TU,115?
PDTA144TU,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDTA144TU,115 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 PDTA144TU,115?
For technical support, including PDTA144TU,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDTA144TU,115 requirements.
6.How does Aetrix verify that PDTA144TU,115 is sourced from the original manufacturer or authorized distributors?
All PDTA144TU,115 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 PDTA144TU,115 meets industry standards.
7.What is the process for return or replacement of PDTA144TU,115?
All PDTA144TU,115 units undergo pre-shipment inspection (PSI). If there is an issue with PDTA144TU,115, 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 PDTA144TU,115 part is unused and in its original packaging.
Return procedure for PDTA144TU,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDTA144TU,115 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…
