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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 3.9V TO-236AB
- Series：BZB84-Q
- Mfr：Nexperia USA Inc.
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：3.9 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：90 Ohms
- Current - Reverse Leakage @ Vr：3 µA @ 1 V
- Operating Temperature：150°C (TJ)
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：TO-236AB
- Voltage - Forward (Vf) (Max) @ If：900 mV @ 10 mA
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Overview
The Nexperia BZB84-C3V9-QR is a dual voltage regulator diode in a SOT-23 surface-mounted package. It features a dual common anode configuration with two independent cathodes. The nominal Zener voltage is 3.9 V with a tolerance of approximately ±5 %. Total power dissipation is limited to 300 mW, while non-repetitive peak reverse power dissipation reaches 40 W per diode. Forward voltage is 0.9 V at 10 mA. Reverse current is 600 μA at 5 mA test current. Diode capacitance is 1 pF at 5 mA. Temperature coefficient is -3.5 mV/K. Operating junction temperature ranges from -55 °C to +150 °C.
Feature Summary
- Dual common anode configuration for compact circuit design
- Qualified according to AEC-Q101 for automotive applications
- Small plastic SOT-23 package suitable for surface mounting
Applications
- General regulation functions
Procurement Notes
Verify the specific suffix and marking code against official Nexperia documentation before ordering. Confirm that the dual common anode topology matches the target schematic requirements. Ensure thermal management aligns with the 300 mW total power dissipation limit under expected operating conditions.
Selection Notes
Select this component when a dual Zener solution sharing a common ground reference is required within a small footprint. The C series provides standard tolerance suitable for general-purpose regulation. Verify that the negative temperature coefficient at low voltages does not conflict with circuit stability requirements.
Part Context
This device belongs to the BZB84-Q series of dual voltage regulator diodes manufactured by Nexperia. The series offers various nominal working voltages ranging from 2.4 V to 75 V in the E24 range. All variants share the same SOT-23 package and dual common anode architecture.
Replacement Considerations
Direct replacements include other BZB84-C3V9-Q variants or equivalent dual common anode Zener diodes in SOT-23 packages. Verify pinout compatibility and ensure the substitute meets the same AEC-Q101 qualification if automotive use is intended.
FAQ
What is the pin configuration for the BZB84-C3V9-QR?
Pin 1 is Cathode 1 (K1), Pin 2 is Cathode 2 (K2), and Pin 3 is the Common Anode (CA).
Does the BZB84-C3V9-QR meet automotive standards?
Yes, the device is qualified according to the AEC-Q101 stress test qualification for discrete semiconductors.
What is the maximum non-repetitive peak reverse power dissipation?
The non-repetitive peak reverse power dissipation is 40 W per diode under specified pulse conditions.
