PDTA144WU Nexperia Integrated Circuit (SOT23 (3-Pin)) In Stock
Nexperia PDTA144WU is a PNP digital transistor with built-in 47 kΩ bias resistors, rated at 50 V collector-emitter voltage and 100 mA collector current in a compact 3-pin UMT SOT-23 package. The integrated bias resistors eliminate the need for external base resistors, simplifying PCB layout and reducing component count in switching circuits. Available from authorized distributors worldwide with reliable inventory and competitive pricing.
- Manufacturer
- Nexperia
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- PDTA144WU Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Built-in 47 kΩ bias resistors with a ratio of 2.13 eliminate external base resistors, reducing BOM component count and simplifying PCB layout in digital switching designs
- PNP configuration rated at 50 V and 100 mA enables reliable high-side load switching and signal inversion directly from microcontroller or logic outputs
- Ultra-compact 3-pin UMT SOT-23 package with minimum hFE of 60 supports high-density placement in consumer electronics and wearable device PCBs
Applications
The PDTA144WU is used in digital logic interface circuits, LED drivers, and relay control stages in portable consumer electronics, home automation modules, and IoT sensor nodes where a PNP transistor with 47 kΩ integrated bias resistors eliminates the need for discrete base-limiting components. Its 50 V rated voltage and 100 mA collector current make it suitable for interface switching in low-voltage embedded systems powered from 3.3 V or 5 V rails. The small UMT SOT-23 package enables high-density assembly in hearing aids, wearables, and compact industrial controllers.
Specifications
| Date Of Intro | 1997-12-15 |
| YTEOL | 7 |
| Additional Feature | BUILT IN BIAS RESISTANCE RATIO IS 0.47 |
| Collector Current-Max (IC) | 0.1A |
| Collector-Emitter Voltage-Max | 50V |
| Configuration | SINGLE WITH BUILT-IN RESISTOR |
| DC Current Gain-Min (hFE) | 60 |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e3 |
| Number of Elements | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Polarity/Channel Type | PNP |
| Surface Mount | YES |
| Terminal Finish | TIN |
| Terminal Form | GULL WING |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transistor Application | SWITCHING |
| Transistor Element Material | SILICON |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What built-in resistors does the PDTA144WU include, and how do they simplify circuit design?
The PDTA144WU integrates a 47 kΩ base input resistor and an additional resistor with a ratio of 2.13, which sets the base bias network internally. This eliminates 2 discrete resistors per transistor from the BOM, simplifies PCB layout by removing resistor pads near the base terminal, and ensures consistent switching threshold behavior defined by the 47 kΩ resistor value across the 50 V and 100 mA rated operating range.
Which voltage and current limits define the PDTA144WU's safe operating range for load switching?
The PDTA144WU is rated for a maximum collector-emitter voltage of 50 V and a maximum collector current of 100 mA, with a minimum DC current gain (hFE) of 60. These ratings allow it to switch resistive loads up to 500 mW (50 V at 10 mA) or drive LED strings at up to 100 mA in single-transistor high-side or low-side switching configurations from 3.3 V logic outputs.
How does the PDTA144WU compare to a discrete PNP transistor when designing a compact LED driver circuit?
In a discrete LED driver using a bare PNP transistor, 2 external resistors are needed for the base biasing network, occupying additional PCB area of approximately 1 mm x 0.5 mm per resistor. The PDTA144WU integrates both resistors in a single 3-pin UMT SOT-23 package, reducing the total component footprint by over 50% and cutting assembly time for the LED switching stage while maintaining the same 100 mA drive capability at 50 V.
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