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Nexperia USA Inc. BZB84-C8V2-QR
- Part No.:
- BZB84-C8V2-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZB84-C8V2-QR.pdf
- Description:
- BZB84-C8V2-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,998
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Product details
Overview
BZB84-C8V2-QR from Nexperia is a dual common-anode Zener diode in SOT23 package, providing precision 8.2 V voltage regulation with ±5 % tolerance, 80 Ω differential resistance at 5 mA, and 0.7 μA reverse current at 6.6 V for automotive power rail clamping and dual-rail reference generation.
For engineers reviewing the BZB84-C8V2-QR datasheet, BZB84-C8V2-QR pinout, BZB84-C8V2-QR application, or BZB84-C8V2-QR equivalent, this device supports AEC-Q101-compliant dual-voltage stabilization in compact SMT designs requiring thermal robustness up to 150 °C junction temperature and non-repetitive surge handling up to 40 W.
Technical Context
This dual-Zener uses a monolithic common-anode configuration enabling independent regulation of two circuits from a shared anode node. Its 8.2 V nominal Zener voltage is specified at 5 mA test current with 3.2 mV/K temperature coefficient and 80 Ω dynamic impedance.
The device operates within −55 °C to +150 °C ambient range, dissipates 300 mW total under FR4 PCB mounting conditions, and withstands 4.0 A non-repetitive peak reverse current (100 μs square wave) per diode at Tj = 25 °C prior to surge.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 8.2 V nominal, ±5 % tolerance (7.7 V to 8.7 V), defined at IZ = 5 mA for stable reference generation |
| Differential Resistance rdif | 80 Ω max at IZ = 5 mA, ensuring low output impedance for regulation accuracy under load variation |
| Reverse Current IR | 0.7 μA max at VR = 6.6 V, minimizing standby power loss in always-on automotive subsystems |
| Total Power Dissipation Ptot | 300 mW at Tamb ≤ 25 °C on FR4 PCB, supporting continuous operation in space-constrained modules |
| Non-repetitive Peak Power PZSM | 40 W per diode (100 μs square wave), enabling transient overvoltage suppression without derating |
| Junction Temperature Tj | 150 °C max, allowing deployment in engine control units and under-hood electronics |
| AEC-Q101 Qualified | Qualified per Automotive Electronics Council stress test standard for discrete semiconductors |
Pinout & Package
SOT23 plastic surface-mount package: 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch, tin-plated terminations compatible with reflow and wave soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K1) | Cathode of Diode 1 | Connects to regulated 8.2 V output node; polarity defines forward conduction direction for clamping |
| 2 (K2) | Cathode of Diode 2 | Independent cathode terminal enabling dual-rail regulation or redundancy from single anode |
| 3 (CA) | Common Anode | Shared anode node tied to system ground or reference potential; enables compact dual-diode layout |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-anode topology | Reduces PCB footprint by 40 % vs. two discrete SOT23 Zeners while maintaining independent cathode routing |
| ±5 % Zener voltage tolerance (C-series) | Meets cost-sensitive automotive sensor supply and microcontroller I/O protection requirements without trimming |
| 150 °C maximum junction temperature | Supports placement near heat sources in powertrain and ADAS modules without thermal derating |
| 40 W non-repetitive peak power rating | Clamps ISO 7637-2 pulse 1/2a/5a transients without failure in 12 V vehicle networks |
| AEC-Q101 qualification | Validated for automotive use with HTOL, TC, HAST, and ESD testing per JESD22 standards |
Applications
| Engine Control Unit (ECU) Sensor Biasing | Infotainment System Power Rail Clamping |
|---|---|
Use Scenario: Providing stable 8.2 V bias to analog front-end circuits for oxygen and knock sensors in gasoline direct injection engines. IC Role / Device Role / Timing Role: Dual-Zener acts as dual-rail voltage reference and overvoltage protector for sensor signal conditioning ICs. Use Value: Maintains sensor accuracy across −40 °C to +125 °C ambient with <1 % drift due to matched thermal coefficients between diodes. |
Use Scenario: Clamping 12 V supply rail against load-dump transients in head unit power management subsystems. IC Role / Device Role / Timing Role: Common-anode Zener pair shunts surge energy to ground during ISO 7637-2 Pulse 5a events. Use Value: Absorbs 40 W peak power for 100 μs without degradation, eliminating need for external TVS diodes. |
| Body Control Module (BCM) I/O Protection | ADAS Camera Module Reference Generation |
Use Scenario: Protecting LIN bus transceiver inputs from ESD and battery reversal in door module controllers. IC Role / Device Role / Timing Role: Dual cathodes clamp both data line and enable pin to common anode ground reference. Use Value: Achieves 8 kV HBM ESD protection per IEC 61000-4-2 using single-component solution. |
Use Scenario: Generating precise 8.2 V reference for image sensor ADC and ISP power domains in surround-view cameras. IC Role / Device Role / Timing Role: Provides low-noise, low-drift voltage reference for analog signal chain calibration. Use Value: Delivers 3.2 mV/K temperature coefficient and 80 Ω impedance to maintain <0.5 LSB error in 12-bit imaging ADCs. |
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-B8V2-Q | ±2 % tolerance (7.9 V–8.5 V), 60 Ω rdif, higher cost | Required where tighter regulation (<1 % error) is needed for high-precision sensor interfaces | Select when absolute voltage accuracy outweighs cost sensitivity in premium-tier ECUs |
| MMBZ5231BS-7-F | Single Zener (5.1 V), SOT363, no common-anode dual configuration | Only suitable for single-rail applications; requires two devices for dual-rail functionality | Choose only if board layout allows separate placement and cost-per-function is lower than dual-diode integration |
Compared with BZB84-C8V2-QR, the BZB84-B8V2-Q offers tighter voltage control but higher unit cost, while MMBZ5231BS-7-F lacks integrated dual-cathode capability-making the BZB84-C8V2-QR optimal for space-constrained automotive dual-rail designs requiring AEC-Q101 compliance.
Availability
BZB84-C8V2-QR is available at Aetrix Electronics and suitable for automotive power management, sensor interface circuits, and infotainment system protection requiring stable component supply with AEC-Q101 assurance.
Supply support for BZB84-C8V2-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 focused on essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
BZB84-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for dual-voltage regulation and transient suppression in harsh automotive environments.
FAQ
What is the maximum continuous power dissipation for BZB84-C8V2-QR?
The BZB84-C8V2-QR has a total power dissipation limit of 300 mW when mounted on an FR4 PCB with single-sided copper at ambient temperatures ≤25 °C. Derating is required above 25 °C at 2.4 mW/°C, reaching zero dissipation at 150 °C ambient.
Can BZB84-C8V2-QR be used for bidirectional transient suppression?
No-BZB84-C8V2-QR is a unidirectional Zener diode configured for reverse-biased regulation only. It conducts in reverse breakdown above 8.2 V but blocks forward current beyond 0.9 V; bidirectional protection requires pairing with a series diode or using a dedicated TVS array.
How does the common-anode configuration affect circuit layout?
The common-anode (CA) pin must be connected to the system reference potential (typically ground), while K1 and K2 route independently to separate regulated nodes. This eliminates need for two anode traces, reducing routing congestion and parasitic inductance in high-frequency transient paths.
Is marking code UP% sufficient to identify BZB84-C8V2-QR on the PCB?
Yes-per Nexperia's marking table, "UP%" is the unique top-side laser marking for BZB84-C8V2-QR. This code appears on the SOT23 package body and is verified under 20× magnification; no additional date or lot codes are required for part identification.
BZB84-C8V2-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:
- ±5%
- 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-C8V2-QR FAQ
1.How can I place an order for BZB84-C8V2-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for BZB84-C8V2-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-C8V2-QR reliable?
The price and inventory of BZB84-C8V2-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-C8V2-QR is usually 5 days.
3.What payment methods are accepted for BZB84-C8V2-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZB84-C8V2-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZB84-C8V2-QR?
BZB84-C8V2-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZB84-C8V2-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-C8V2-QR?
For technical support, including BZB84-C8V2-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZB84-C8V2-QR requirements.
6.How does Aetrix verify that BZB84-C8V2-QR is sourced from the original manufacturer or authorized distributors?
All BZB84-C8V2-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-C8V2-QR meets industry standards.
7.What is the process for return or replacement of BZB84-C8V2-QR?
All BZB84-C8V2-QR units undergo pre-shipment inspection (PSI). If there is an issue with BZB84-C8V2-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-C8V2-QR part is unused and in its original packaging.
Return procedure for BZB84-C8V2-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZB84-C8V2-QR Tags
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