Overview
The BCX5616QTA is a dual NPN transistor array designed for compact, high-gain switching and amplification tasks in consumer electronics, signal conditioning circuits, driver interfaces, and general-purpose amplification. Integrated into a single SOT-363 package, the device provides matched transistor performance, reduced PCB footprint, and enhanced thermal consistency. With collector current capability up to 100 mA, low saturation voltage, and high DC gain, the BCX5616QTA supports efficient, space-saving designs in cost-sensitive or miniaturized applications.
Core Parameters

| Parameter | Specification |
|---|---|
| Transistor Type | Dual NPN |
| Package | SOT-363 |
| Collector-Emitter Voltage (VCEO) | 50 V |
| Collector-Base Voltage (VCBO) | 60 V |
| Emitter-Base Voltage (VEBO) | 5 V |
| Collector Current (IC max) | 100 mA |
| Power Dissipation (PD) | 200 mW |
| DC Current Gain (hFE) | 100 to 630 (at IC = 2 mA) |
| Collector Saturation Voltage | 90 mV typ (IC = 10 mA, IB = 0.5 mA) |
| Transition Frequency (fT) | 100 MHz typ |
| Operating Temperature | –55°C to +150°C |
Features
- Dual NPN transistors in a single SOT-363 package for minimal board area
- High DC gain (hFE up to 630) suitable for low-current amplification
- Low VCE(sat) of 90 mV typical, reducing switching losses
- Collector current up to 100 mA for moderate load driving
- High 100 MHz transition frequency enabling higher-speed signal paths
- Thermally matched dual device, improving consistency between channels
- Ideal for switching, buffering, and small-signal amplification
- Qualified over –55°C to +150°C, supporting demanding environments
Typical Application Scenarios
| Application | Why BCX5616QTA Fits |
|---|---|
| Portable Electronics | SOT-363 minimizes footprint while supporting reliable switching |
| Signal Amplifiers | High hFE range delivers strong gain in low-current paths |
| LED Drivers & Indicators | Low saturation voltage improves efficiency |
| Sensor Signal Conditioning | Noise-sensitive circuits benefit from matched transistor characteristics |
| General Logic-Level Switching | Up to 100 mA collector current handles small actuators and digital loads |
| Consumer Electronics | Cost-effective, stable dual-transistor design suited for compact PCBs |
Performance Comparison
| Feature | BCX5616QTA | Standard NPN (Single) | Dual NPN (General) |
|---|---|---|---|
| Package | SOT-363 (dual) | SOT-23 | Varies |
| DC Gain (hFE) | 100–630 | 80–300 | 120–500 |
| Collector Current | 100 mA | 100–200 mA | 100 mA |
| VCE(sat) | 90 mV typical | 100–200 mV | 100 mV typical |
| Matching | Yes | No | Partial |
BCX5616QTA stands out with high gain, low saturation voltage, and tight dual-transistor matching inside a very small package.
Conclusion
The BCX5616QTA is a compact and efficient dual NPN transistor solution that enables high-gain amplification, low-loss switching, and space-saving PCB layouts. Its combination of high hFE, low VCE(sat), and 100 mA collector capability makes it ideal for portable devices, sensor interfaces, small actuators, and signal chain circuits requiring consistent transistor behavior. For engineers working on compact or cost-optimized designs, the BCX5616QTA delivers dependable and predictable performance.
Manufacturer Profile

The BCX5616QTA is produced by Diodes Incorporated, a global supplier of high-quality discrete semiconductors, logic components, and power devices. The company is known for cost-effective, reliable solutions widely used in consumer electronics, industrial systems, computing, and automotive applications. Their dual-transistor products such as the BCX5616QTA provide compact, high-performance building blocks for modern circuit design.
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