DTC143ZCA-HF Overview
The DTC143ZCA-HF is a high-performance digital transistor with a built-in bias resistor network, designed to simplify circuit design and enhance switching efficiency. Featuring a compact SOT-323 package, it offers excellent switching speed and reliable operation suitable for a wide range of industrial applications. Its robust design ensures stable performance in demanding environments, making it an ideal choice for engineers and sourcing specialists seeking a compact, integrated transistor solution. For further details and purchasing options, visit IC Manufacturer.
DTC143ZCA-HF Technical Specifications
| Parameter | Specification |
|---|---|
| Transistor Type | NPN Digital Transistor with Built-in Resistors |
| Package | SOT-323 (SC-70) |
| Collector-Emitter Voltage (Vce) | 50 V |
| Collector Current (Ic) | 100 mA Continuous |
| Built-in Base Resistors | Rb1 = 8.2 k??, Rb2 = 2.2 k?? |
| Transition Frequency (ft) | 100 MHz (typical) |
| Operating Temperature Range | -40??C to +125??C |
| Power Dissipation (Pd) | 300 mW |
DTC143ZCA-HF Key Features
- Integrated Bias Resistors: Simplifies circuit layout by eliminating external resistor components, reducing PCB space and assembly time.
- High Collector-Emitter Voltage: Supports up to 50 V, enabling use in a variety of medium-voltage switching applications.
- Compact SOT-323 Package: Provides a small footprint for high-density board designs without sacrificing performance.
- Fast Switching Speed: With a transition frequency of 100 MHz, it suits high-speed switching needs in digital circuits.
- Wide Operating Temperature Range: Ensures stable performance across industrial temperature conditions from -40??C to +125??C.
- Reliable Collector Current Capacity: Handles up to 100 mA continuous collector current, supporting moderate load driving.
DTC143ZCA-HF Advantages vs Typical Alternatives
This device offers integrated base resistors, reducing external component count and simplifying design compared to discrete transistor setups. Its high voltage rating and fast switching frequency provide enhanced reliability and efficiency in switching applications. The compact SOT-323 package enables efficient PCB space utilization, making it preferable for modern, dense electronic assemblies. Overall, it delivers a balanced combination of sensitivity, power handling, and integration beneficial in industrial electronics.
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Typical Applications
- Signal switching and amplification in industrial control circuits, where compactness and integrated resistors reduce design complexity and improve reliability.
- Driver stages for relay and LED applications requiring moderate current and fast switching capabilities.
- Interface circuits between low-level digital signals and higher voltage loads, providing robust transistor switching performance.
- General-purpose switching in consumer electronics and communication devices benefiting from integrated biasing and small form factor.
DTC143ZCA-HF Brand Info
The DTC143ZCA-HF is part of a family of digital transistors known for integrating base resistors within a compact surface-mount package. This product line focuses on providing engineers with reliable, space-saving transistor solutions that streamline PCB design. Renowned for consistent quality and performance in industrial and commercial applications, the brand supports a wide range of switching and amplification needs with devices like this model, ensuring ease of use and dependable operation under diverse environmental conditions.
FAQ
What is the main benefit of the built-in resistors in the DTC143ZCA-HF?
The built-in base resistors eliminate the need for external biasing components, simplifying circuit design and reducing board space. This integration improves assembly efficiency and enhances circuit reliability by minimizing the number of solder joints and potential failure points.
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Can the transistor handle high voltage applications?
Yes, it supports a maximum collector-emitter voltage of 50 V, which allows it to be used in medium





