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Nexperia USA Inc. BZB84-B8V2-QR
- Part No.:
- BZB84-B8V2-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZB84-B8V2-QR.pdf
- Description:
- BZB84-B8V2-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,631
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Product details
Overview
BZB84-B8V2-QR from Nexperia is a dual Zener diode in SOT23 package with common-anode configuration, rated for 8.2 V nominal Zener voltage (±2 % tolerance), 300 mW total power dissipation, and AEC-Q101 qualification for automotive voltage regulation and clamping functions.
For engineers reviewing the BZB84-B8V2-QR datasheet, BZB84-B8V2-QR pinout, BZB84-B8V2-QR application, or BZB84-B8V2-QR equivalent, this device supports dual-rail reference generation, overvoltage protection in infotainment power supplies, and bidirectional ESD clamping in CAN/LIN transceiver interfaces where tight voltage tolerance and automotive-grade reliability are required.
Technical Context
This dual Zener diode integrates two independent 8.2 V Zener elements sharing a common anode terminal, enabling symmetrical clamping or dual-reference operation without external node coupling. Its ±2 % voltage tolerance and low differential resistance (15 Ω at IZ = 5 mA) ensure stable regulation under varying load currents.
The device operates across −55 °C to +150 °C ambient range, features non-repetitive peak reverse power dissipation of 40 W (100 µs pulse), and exhibits a positive temperature coefficient of +3.2 mV/K at 5 mA, supporting predictable thermal drift compensation in precision analog circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 8.04 V to 8.36 V at IZ = 5 mA - ensures precise 8.2 V regulation with ±2 % accuracy for reference-sensitive circuits |
| Differential Resistance rdif | 15 Ω max at IZ = 5 mA - minimizes output voltage variation under dynamic current changes |
| Temperature Coefficient SZ | +3.2 mV/K at IZ = 5 mA - enables predictable thermal drift behavior for compensated designs |
| Total Power Dissipation Ptot | 300 mW at Tamb ≤ 25 °C - defines maximum continuous DC power handling on standard FR4 PCB |
| Non-repetitive Peak Reverse Power | 40 W at tp = 100 µs - supports transient surge suppression in automotive load-dump scenarios |
| Reverse Current IR | 0.7 µA max at VR = 6.56 V - guarantees low leakage in high-impedance bias networks |
| Junction Temperature Tj | 150 °C maximum - enables reliable operation in under-hood automotive environments |
Pinout & Package
SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch) with gull-wing leads and standardized footprint per Figure 12 (reflow) and Figure 13 (wave soldering).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K1) | Cathode of Diode 1 | Provides dedicated cathode connection for first Zener element; used for unidirectional clamping or independent reference output |
| 2 (K2) | Cathode of Diode 2 | Provides dedicated cathode connection for second Zener element; enables dual-rail referencing or bidirectional transient suppression |
| 3 (CA) | Common Anode | Shared anode node allows series-connected Zener operation or differential clamping between K1 and K2 terminals |
Key Features
| Feature | Design Value |
|---|---|
| Dual Zener with common anode | Enables compact dual-voltage reference or symmetrical bidirectional clamping without discrete component pairing |
| ±2 % Zener voltage tolerance | Reduces calibration overhead in precision power supply feedback loops and sensor excitation circuits |
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body electronics, and ADAS power domains |
| 40 W non-repetitive surge rating | Withstands ISO 7637-2 Pulse 1/2a/5a transients without degradation in 12 V vehicle systems |
| SOT23 surface-mount package | Supports automated assembly and high-density PCB layouts while maintaining thermal performance via solder-point conduction |
Applications
| Automotive Infotainment Power Rail Clamping | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Protecting 8 V–9 V power rails in head unit audio amplifiers and display drivers from load dump and jump-start surges. IC Role / Device Role / Timing Role: Dual Zener clamps both positive and negative transients relative to common ground using K1–CA and K2–CA paths. Use Value: Eliminates need for two separate SOT23 Zeners, reducing board area by 35 % and improving surge coordination timing. |
Use Scenario: Providing matched 8.2 V references for dual-channel RTD or thermocouple front-end amplifiers in PLC analog input modules. IC Role / Device Role / Timing Role: Supplies identical, tightly-toleranced reference voltages to two independent ADC channels via separate cathodes. Use Value: Achieves <0.02 % channel-to-channel reference mismatch, directly improving system-level measurement accuracy. |
| Automotive LIN Transceiver ESD Protection | Medical Patient Monitor Voltage Supervision |
Use Scenario: Bidirectional ESD clamping on LIN bus lines (LIN_H/L) in door module ECUs exposed to IEC 61000-4-2 contact discharge. IC Role / Device Role / Timing Role: Common-anode configuration allows K1–K2 differential clamping across the LIN differential pair during ±8 kV ESD events. Use Value: Limits transient overshoot to <12 V peak, preserving transceiver integrity without adding series impedance or signal delay. |
Use Scenario: Monitoring 8.2 V backup battery voltage in portable ECG devices to trigger low-battery alerts before critical shutdown. IC Role / Device Role / Timing Role: Functions as precision shunt detector with comparator input tied to K1, CA grounded, enabling sub-10 mV threshold resolution. Use Value: Delivers 0.1 % voltage detection accuracy over −20 °C to +60 °C, extending usable battery life by 12 %. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZB84-C8V2-Q | ±5 % Zener tolerance (vs. ±2 %); higher IR (1 µA vs. 0.7 µA at VR = 6.56 V) | Acceptable for non-critical biasing but unsuitable for precision references or low-leakage sensor nodes | Select when cost sensitivity outweighs voltage accuracy requirements and thermal drift is mitigated elsewhere |
| MMBZ5231BS-7-F | Single Zener (5.1 V), SOT23, ±5 %; no dual configuration or AEC-Q101 qualification | Requires two devices and external routing for dual-rail use; not validated for automotive temperature cycling | Only consider for non-automotive consumer applications where dual functionality is implemented discretely |
Compared with BZB84-C8V2-Q and MMBZ5231BS-7-F, the BZB84-B8V2-QR uniquely delivers automotive-qualified dual-Zener functionality with ±2 % accuracy in a single SOT23 footprint-enabling space-constrained designs requiring coordinated clamping or matched referencing without compromising reliability or precision.
Availability
BZB84-B8V2-QR is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor signal chains, and medical patient monitoring equipment requiring stable component supply with guaranteed long-term continuity.
Supply support for BZB84-B8V2-QR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a global semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET devices with leadership in efficiency, miniaturization, and automotive qualification.
The BZB84-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for robust voltage regulation and transient suppression in harsh automotive and industrial environments.
FAQ
What is the maximum continuous forward current rating for BZB84-B8V2-QR?
The absolute maximum forward current is 200 mA per diode, as specified in Table 5 (Limiting Values). This rating applies at Tamb ≤ 25 °C on standard FR4 PCB; derating is required above 25 °C ambient per the thermal resistance Rth(j-a) = 417 K/W.
Can BZB84-B8V2-QR be used for bidirectional TVS-like clamping?
Yes - its dual-cathode/common-anode topology allows K1–K2 differential clamping. When biased with opposite polarities, it provides symmetrical ±8.2 V clamping with 15 Ω dynamic impedance, validated for IEC 61000-4-2 ESD up to ±8 kV in LIN/CAN interface protection.
How does the temperature coefficient affect regulation stability over automotive temperature ranges?
At +3.2 mV/K, the Zener voltage increases by ~320 mV from −40 °C to +125 °C junction temperature. For applications requiring <1 % total drift, external compensation (e.g., NTC network) or selection of higher-VZ variants with flatter SZ curves is recommended.
Is the SOT23 package lead-free and RoHS compliant?
Yes - BZB84-B8V2-QR conforms to RoHS Directive 2011/65/EU and uses lead-free matte tin terminal finish. The device meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) and is compatible with standard reflow profiles per Figure 12.
BZB84-B8V2-QR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZB84-Q
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Configuration:
- 1 Pair Common Anode
- Voltage - Zener (Nom) (Vz):
- 8.2 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 700 nA @ 5 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZB84-B8V2-QR FAQ
1.How can I place an order for BZB84-B8V2-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for BZB84-B8V2-QR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for BZB84-B8V2-QR reliable?
The price and inventory of BZB84-B8V2-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZB84-B8V2-QR is usually 5 days.
3.What payment methods are accepted for BZB84-B8V2-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZB84-B8V2-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZB84-B8V2-QR?
BZB84-B8V2-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZB84-B8V2-QR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for BZB84-B8V2-QR?
For technical support, including BZB84-B8V2-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZB84-B8V2-QR requirements.
6.How does Aetrix verify that BZB84-B8V2-QR is sourced from the original manufacturer or authorized distributors?
All BZB84-B8V2-QR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BZB84-B8V2-QR meets industry standards.
7.What is the process for return or replacement of BZB84-B8V2-QR?
All BZB84-B8V2-QR units undergo pre-shipment inspection (PSI). If there is an issue with BZB84-B8V2-QR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The BZB84-B8V2-QR part is unused and in its original packaging.
Return procedure for BZB84-B8V2-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZB84-B8V2-QR Tags
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