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Nexperia USA Inc. BZB84-B6V8-QR
- Part No.:
- BZB84-B6V8-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZB84-B6V8-QR.pdf
- Description:
- BZB84-B6V8-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,125
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZB84-B6V8-Q from Nexperia is a dual common-anode Zener diode in SOT23 package, providing precise 6.66 V to 6.94 V regulation (±2 % tolerance) per diode at 5 mA, with differential resistance ≤80 Ω and temperature coefficient +1.2 mV/K to +4.5 mV/K. It delivers automotive-grade voltage reference and overvoltage protection in compact power management circuits.
For engineers reviewing the BZB84-B6V8-Q datasheet, BZB84-B6V8-Q pinout, BZB84-B6V8-Q application, or BZB84-B6V8-Q equivalent, this device supports dual-rail regulation, reverse polarity protection, and transient clamping in space-constrained automotive ECUs and industrial sensor interfaces where stable dual-Zener functionality and AEC-Q101 qualification are required.
Technical Context
This dual-Zener diode integrates two independent Zener junctions sharing a common anode terminal (Pin 3), enabling symmetrical voltage clamping or independent rail regulation from a single footprint. Each diode operates with nominal 6.8 V Zener voltage, 5 mA test current, and exhibits low dynamic impedance (≤80 Ω) for tight regulation under load variation.
It features AEC-Q101 qualification, 150 °C maximum junction temperature, and thermal resistance of 100 K/W from junction to solder point-enabling reliable operation in under-hood automotive environments. Non-repetitive peak reverse power dissipation is rated at 40 W for 100 µs pulses at Tj = 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.66 V to 6.94 V at IZ = 5 mA - defines precise regulation threshold for dual-rail reference or clamp |
| Tolerance | ±2 % (B-series) - ensures tight voltage matching between dual diodes in precision biasing |
| Differential Resistance (rdif) | ≤80 Ω at IZ = 5 mA - minimizes output voltage shift under varying load current |
| Temperature Coefficient (SZ) | +1.2 mV/K to +4.5 mV/K - enables predictable drift compensation in wide-temperature automotive systems |
| Non-repetitive Peak Power (PZSM) | 40 W for tp = 100 µs - supports robust ESD and surge immunity without external TVS stacking |
| Total Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - allows continuous dual-diode operation on standard FR4 PCB without heatsinking |
| Junction Temperature (Tj) | −55 °C to +150 °C - validated for engine control, transmission, and ADAS module deployment |
Pinout & Package
SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pitch); thermally optimized for reflow/wave soldering with defined solder land patterns per Figures 12–13.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K1) | Cathode of Diode 1 | Connects to regulated node or signal line requiring 6.8 V clamping/reference; reverse-biased during Zener operation |
| 2 (K2) | Cathode of Diode 2 | Independent cathode for second regulated rail or redundant protection path; electrically isolated from K1 |
| 3 (CA) | Common Anode | Shared anode connection tied to system ground or low-side reference; enables dual-Zener configuration with single return path |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-anode topology | Reduces board area by 50 % vs. discrete dual-Zener solutions while maintaining independent cathode routing |
| AEC-Q101 qualification | Validated for automotive applications including powertrain, chassis, and body electronics per stress-test requirements |
| Low differential resistance (≤80 Ω) | Ensures <±20 mV regulation error across ±10 mA load change-critical for ADC reference stability |
| Controlled temperature coefficient (+1.2 to +4.5 mV/K) | Enables predictable voltage drift compensation in ambient ranges from −40 °C to +125 °C |
| 40 W non-repetitive peak power rating | Withstands ISO 7637-2 pulse 1/2/5a surges without derating or external protection components |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating reference voltage for analog front-end circuitry in diesel ECU microcontrollers. IC Role / Device Role / Timing Role: Dual-Zener provides matched 6.8 V references for ADC bias and CAN transceiver VIO supply rails. Use Value: Eliminates need for two separate Zeners and reduces layout complexity while maintaining ±2 % accuracy across temperature. |
Use Scenario: Clamping analog sensor outputs (e.g., pressure or temperature transducers) before amplification. IC Role / Device Role / Timing Role: Acts as bidirectional overvoltage protector using common-anode configuration to limit both positive and negative excursions. Use Value: Prevents op-amp saturation and ADC damage during ESD events with sub-100 ns response and no leakage penalty. |
| Automotive Body Control Module (BCM) | Power Supply Rail Monitoring |
Use Scenario: Providing stable bias for LED driver ICs and LIN bus transceivers in door module PCBs. IC Role / Device Role / Timing Role: Supplies dual 6.8 V references-one for LED current sense amplifier, one for LIN physical layer regulator. Use Value: Ensures consistent LED brightness and LIN waveform integrity despite battery voltage fluctuations from 9 V to 16 V. |
Use Scenario: Monitoring 12 V vehicle battery rail for undervoltage/overvoltage conditions in telematics units. IC Role / Device Role / Timing Role: One diode regulates comparator reference; the other clamps input to protect monitoring circuitry. Use Value: Enables single-component solution for both sensing threshold and input protection-reducing BOM count and failure modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZB84-C6V8-Q | ±5 % tolerance (vs. ±2 %), higher differential resistance (≤150 Ω), wider VZ range (6.4 V–7.2 V) | Acceptable where cost sensitivity outweighs precision; less suitable for high-accuracy ADC references | Select when budget constraints dominate and ±5 % regulation error is acceptable in non-critical rails |
| MMBZ5235BS-7-F | Single Zener (5.1 V), SOT-363 package, ±5 % tolerance, 170 Ω rdif, not AEC-Q101 qualified | Lacks dual-diode integration and automotive qualification; requires two devices for equivalent function | Use only in non-automotive consumer applications where dual functionality and qualification are unnecessary |
Compared with BZB84-C6V8-Q and MMBZ5235BS-7-F, the BZB84-B6V8-Q uniquely combines ±2 % tolerance, dual common-anode integration, and AEC-Q101 qualification-making it the sole choice for precision dual-rail regulation in automotive power domains.
Availability
BZB84-B6V8-Q is available at Aetrix Electronics and suitable for automotive engine control units, industrial sensor interfaces, and body electronics requiring stable component supply with guaranteed long-term manufacturability.
Supply support for BZB84-B6V8-Q 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.
The BZB84-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for dual-voltage regulation and transient protection in harsh-environment automotive electronics.
FAQ
What is the maximum continuous forward current for BZB84-B6V8-Q?
The absolute maximum forward current per diode is 200 mA, as specified in Table 5 (Limiting Values). This rating applies at Tamb ≤ 25 °C with device mounted on standard FR4 PCB. Derating is required above 25 °C ambient per thermal resistance data (Rth(j-a) = 417 K/W).
Can BZB84-B6V8-Q be used for bidirectional clamping?
Yes-its dual common-anode configuration allows bidirectional clamping when cathodes (Pins 1 and 2) are connected to opposing sides of a signal line and the common anode (Pin 3) is grounded. This forms two back-to-back Zener paths, limiting both positive and negative transients to approximately ±6.8 V.
Is the 40 W peak power rating applicable to both diodes simultaneously?
No-the 40 W non-repetitive peak reverse power dissipation (PZSM) is specified per diode, not per device. Simultaneous surge on both diodes must be limited to ensure total device power (≤300 mW steady-state) and junction temperature (≤150 °C) remain within limits.
How does the temperature coefficient affect regulation accuracy over −40 °C to +125 °C?
At 6.8 V nominal, the +1.2 to +4.5 mV/K coefficient yields a worst-case drift of +682 mV over 150 K span. However, typical behavior (Fig. 7) shows near-zero crossing near 25 °C, resulting in <±50 mV total deviation across full automotive range when combined with ±2 % initial tolerance.
BZB84-B6V8-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):
- 6.8 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 4 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-B6V8-QR FAQ
1.How can I place an order for BZB84-B6V8-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for BZB84-B6V8-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-B6V8-QR reliable?
The price and inventory of BZB84-B6V8-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-B6V8-QR is usually 5 days.
3.What payment methods are accepted for BZB84-B6V8-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZB84-B6V8-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZB84-B6V8-QR?
BZB84-B6V8-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZB84-B6V8-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-B6V8-QR?
For technical support, including BZB84-B6V8-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZB84-B6V8-QR requirements.
6.How does Aetrix verify that BZB84-B6V8-QR is sourced from the original manufacturer or authorized distributors?
All BZB84-B6V8-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-B6V8-QR meets industry standards.
7.What is the process for return or replacement of BZB84-B6V8-QR?
All BZB84-B6V8-QR units undergo pre-shipment inspection (PSI). If there is an issue with BZB84-B6V8-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-B6V8-QR part is unused and in its original packaging.
Return procedure for BZB84-B6V8-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZB84-B6V8-QR Tags
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AZ23C18-7-F
Diodes Incorporated
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