PDTA143TU Nexperia Integrated Circuit (SOT23 (3-Pin)) In Stock
Nexperia PDTA143TU is a PNP digital transistor with built-in 4.7 kΩ bias resistors rated at 100 mA collector current and 50 V collector-emitter voltage. Housed in a compact 3-pin UMT (SOT-323) package with minimum hFE of 200, it simplifies circuit design by eliminating external base resistors. Available from stock with worldwide shipping.
- Manufacturer
- Nexperia
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- PDTA143TU Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PDTA143TU?
- PNP digital transistor with integrated 4.7 kΩ bias resistors, eliminating external base components and reducing BOM count
- 100 mA collector current and 50 V VCEO rating suitable for low-power switching and signal routing applications
- Minimum DC current gain (hFE) of 200 ensures reliable saturation switching from low-drive microcontroller GPIO outputs
- Ultra-compact 3-pin UMT/SOT-323 package for space-critical mobile and wearable PCB designs
What is PDTA143TU used for?
The PDTA143TU is ideal for interface switching applications where a microcontroller GPIO drives a PNP transistor without external base resistors, such as LED drivers, relay coil controls, and logic-level signal inverters. Its built-in 4.7 kΩ resistor network makes it a drop-in biasing solution for portable consumer electronics, IoT sensor nodes, and wearable devices demanding minimal component count. The 50 V collector-emitter rating also suits low-voltage motor pre-driver stages and open-collector bus pull-up circuits.
What are the specifications of PDTA143TU?
| Date Of Intro | 2017-02-01 |
| YTEOL | 7 |
| Additional Feature | BUILT-IN BIAS RESISTORS |
| Collector Current-Max (IC) | 0.1A |
| Collector-Emitter Voltage-Max | 50V |
| Configuration | SINGLE WITH BUILT-IN RESISTOR |
| DC Current Gain-Min (hFE) | 200 |
| JEDEC-95 Code | TO-236 |
| 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 |
Where can I find the PDTA143TU datasheet?
PDTA143TU Datasheet DownloadOfficial datasheet from Nexperia
What are equivalent replacements for PDTA143TU?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What built-in resistor value does the PDTA143TU use, and how does it simplify GPIO-driven switching circuits?
The PDTA143TU integrates a 4.7 kΩ base bias resistor internally, so a microcontroller GPIO driving 3.3 V or 5 V logic directly into the base requires no external resistor. This reduces the surrounding component count by at least 1 resistor per switch stage, saving PCB area and simplifying bill-of-materials management in designs with many switched outputs.
What are the maximum collector current and collector-emitter voltage ratings of the PDTA143TU?
The PDTA143TU is rated for a maximum collector current (IC) of 100 mA and a collector-emitter voltage (VCEO) of 50 V. These ratings make it suitable for switching small loads such as LEDs under 100 mA, relay coils, and signal paths in systems with supply rails up to 50 V, while the PNP polarity allows high-side switching configurations.
How does the PDTA143TU's UMT (SOT-323) package benefit space-constrained PCB layouts compared to SOT-23?
The UMT (SOT-323) package has a smaller footprint than the standard SOT-23 (TO-236), with a body size of approximately 2.0 mm × 1.25 mm versus 2.9 mm × 1.6 mm for SOT-23. This size reduction is significant in high-density wearable and IoT boards where dozens of switching transistors may be placed, allowing designers to reclaim several square millimeters of board space per transistor placed.
When would PDTA143TU be preferred over a discrete PNP transistor like the 2SA1015 in a production design?
Unlike a discrete 2SA1015 that requires an external 4.7 kΩ to 10 kΩ base resistor on every switch stage, the PDTA143TU integrates the 4.7 kΩ bias resistor, cutting 1 component per switch and reducing pick-and-place steps in automated SMT assembly. For high-volume runs of thousands of units, this translates to measurable reductions in assembly time and component procurement complexity, particularly when the board carries 10 or more switched outputs.
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