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Product Detailed Parameters
- Description：TRANS NPN 45V 0.5A SOT-23-3
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Transistor Type：NPN
- Current - Collector (Ic) (Max)：500 mA
- Voltage - Collector Emitter Breakdown (Max)：45 V
- Vce Saturation (Max) @ Ib, Ic：620mV @ 50mA, 500mA
- Current - Collector Cutoff (Max)：100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce：100 @ 100mA, 1V
- Power - Max：300 mW
- Frequency - Transition：-
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The BCX19_D87Z is a small signal PNP bipolar junction transistor manufactured by onsemi. It is housed in a TO-92 surface-mount package designed for low noise amplifier applications. The device features a collector-emitter breakdown voltage of 45V and a maximum continuous collector current of 0.1A. It operates within a temperature range of -55°C to +150°C. The component utilizes silicon technology and provides a minimum DC current gain (hFE) of 120.
Feature Summary
- Designed for low noise performance in amplifier circuits
- Utilizes a compact surface-mount TO-92 package configuration
- Constructed with silicon material for reliable operation
Applications
- Low noise amplification stages
- General purpose switching applications
- Signal processing circuits
Procurement Notes
Verify the manufacturer marking and date code upon receipt to ensure authenticity from onsemi. Confirm that the package type matches the required surface-mount specifications for your PCB layout. Check for any physical damage to the leads before soldering. Ensure storage conditions comply with moisture sensitivity levels if applicable. Cross-reference the part number suffix to confirm exact electrical binning requirements.
Selection Notes
Select this component when a PNP transistor with low noise characteristics is required for signal amplification. Consider the 45V breakdown voltage and 0.1A current limits against circuit demands. The TO-92 SMD form factor is suitable for space-constrained designs. Evaluate thermal management needs given the 150°C maximum junction temperature rating.
Part Context
This part belongs to the BCX series of small signal transistors from onsemi, which are widely used in consumer electronics and industrial control systems. The D87Z suffix indicates specific packaging and tape-and-reel configuration details defined by the manufacturer. These devices are standard replacements for legacy NPN/PNP pairs in audio and RF pre-amplifier stages.
Replacement Considerations
Check for direct equivalents such as the BCX19 or BCY70 series depending on pinout compatibility. Verify that substitute parts meet the same low noise and hFE gain requirements. Ensure the replacement package matches the TO-92 SMD footprint to avoid rework.
