PDTC143ZU Nexperia Integrated Circuit (SOT23 (3-Pin)) In Stock
Nexperia PDTC143ZU is an NPN digital transistor with built-in 4.7kΩ bias resistors, rated at 100mA collector current and 50V VCE, housed in a compact 3-pin UMT package. From $0.05 in stock, worldwide shipping available.
- Manufacturer
- Nexperia
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- PDTC143ZU Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Built-in 4.7kΩ input and feedback bias resistors eliminate external components and simplify PCB layout
- NPN configuration with 100mA collector current and 50V VCE for low-power switching applications
- Ultra-compact 3-pin UMT package minimizes board space in space-constrained portable and wearable designs
Applications
The PDTC143ZU is ideal for digital switching and level-shifting circuits in consumer electronics, portable devices, and IoT applications where PCB area is at a premium. Its integrated 4.7kΩ bias resistor network allows direct connection to microcontroller GPIO pins operating at 3.3V or 5V without external resistors. The 50V, 100mA ratings make it suitable for LED driver stages, relay driver circuits, and signal inversion functions.
Specifications
| Date Of Intro | 1997-09-17 |
| YTEOL | 7 |
| Additional Feature | BUILT IN BIAS RESISTANCE RATIO IS 10 |
| Collector Current-Max (IC) | 0.1A |
| Collector-Emitter Voltage-Max | 50V |
| Configuration | SINGLE WITH BUILT-IN RESISTOR |
| DC Current Gain-Min (hFE) | 100 |
| 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 | NPN |
| 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
How do the built-in resistors in the PDTC143ZU simplify GPIO-to-load switching circuits?
The PDTC143ZU integrates a 4.7kΩ input resistor and a 470Ω feedback resistor (ratio 10:1) between the base and emitter, eliminating the need for external bias components. This allows a microcontroller GPIO at 3.3V or 5V to directly drive the transistor base and switch loads up to 100mA without calculating or placing separate resistors, saving board area and assembly cost.
What is the maximum collector-emitter voltage and current for the PDTC143ZU in relay driver circuits?
The PDTC143ZU supports a maximum collector-emitter voltage of 50V and a peak collector current of 100mA, which comfortably covers 5V and 12V relay coil driving requirements. The minimum DC current gain (hFE) of 100 ensures the transistor saturates fully with typical GPIO drive currents of 1mA to 5mA, guaranteeing clean switching transitions in relay and solenoid driver applications.
When is the PDTC143ZU a better fit than a discrete NPN transistor for compact wearable PCB designs?
The PDTC143ZU in its 3-pin UMT package (approximately 2mm × 2mm footprint) combines the transistor and 2 resistors into a single component, reducing the total component count by 2 parts per switch stage. In wearable or portable PCB designs where placement density exceeds 40 components per cm², this integration directly reduces routing complexity and allows closer component spacing compared to assembling a discrete BC847 with two 0402 resistors.
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