PDTA143ZU Nexperia Integrated Circuit (SOT23 (3-Pin)) In Stock
Nexperia PDTA143ZU is a PNP digital transistor with built-in 4.7 kΩ bias resistor, rated at 100 mA collector current and 50 V VCE, in a compact 3-pin UMT (SOT-323) package. Available from stock with worldwide shipping.
- Manufacturer
- Nexperia
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- PDTA143ZU Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Built-in 4.7 kΩ base bias resistors with ratio 10 eliminating external resistor components and reducing BOM size
- PNP configuration rated at 100 mA collector current and 50 V VCE enabling direct MCU GPIO-driven switching
- Compact 3-pin UMT (SOT-323) package measuring under 1.3 mm × 2.1 mm for space-critical portable and wearable designs
Applications
PDTA143ZU is used in logic-level switching applications where a microcontroller GPIO must drive a load at up to 100 mA and 50 V without an external base resistor. Its integrated 4.7 kΩ bias resistor simplifies circuit design in LED drivers, relay control circuits, and load switches in battery-powered consumer electronics and IoT devices. The 3-pin UMT package enables high-density placement in compact PCBs such as wearables, handheld meters, and portable medical devices.
Specifications
| Date Of Intro | 1999-05-25 |
| YTEOL | 7 |
| Additional Feature | BUILT-IN BIAS RESISTOR RATIO 10 |
| Collector Current-Max (IC) | 0.1A |
| Collector-Emitter Voltage-Max | 50V |
| Configuration | SINGLE WITH BUILT-IN RESISTOR |
| DC Current Gain-Min (hFE) | 100 |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What resistor values are built into PDTA143ZU and how do they simplify base drive circuits?
PDTA143ZU integrates a 4.7 kΩ base resistor with a bias resistor ratio of 10, meaning no external resistor is needed between the MCU output and the transistor base for typical 3.3 V or 5 V logic-level switching. This reduces the component count by at least 1 resistor per switch stage in LED driver and relay control designs.
What is the maximum collector current and voltage rating of PDTA143ZU for load switching applications?
PDTA143ZU supports up to 100 mA collector current and 50 V collector-emitter voltage, with a minimum DC current gain (hFE) of 100. These ratings cover a broad range of low-power load switching tasks including LED arrays, small relays, and signal-level MOSFET gate drivers operating from 5 V to 24 V supplies.
How small is the PDTA143ZU package and why does it suit high-density PCB designs?
PDTA143ZU is housed in a 3-pin UMT (SOT-323) package, which has a body footprint of approximately 1.3 mm × 2.1 mm — smaller than the standard SOT-23 — allowing tighter component spacing on wearable, handheld medical, and IoT PCBs where every square millimeter of board space matters.
For which switching applications is PDTA143ZU a lower-component-count alternative to a discrete PNP transistor plus resistor?
In LED indication circuits, relay coil drivers, and transistor-transistor logic interface stages where a 3.3 V or 5 V signal must switch up to 100 mA at 50 V, PDTA143ZU replaces the discrete PNP transistor plus at least one external 4.7 kΩ base resistor. Eliminating that resistor is particularly valuable in high-channel-count designs with 8 or more switching channels on a compact PCB.
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