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Diodes Incorporated BZX84B5V6Q-7-F
- Part No.:
- BZX84B5V6Q-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84B5V6Q-7-F.pdf
- Description:
- DIODE ZENER 5.6V 300MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:105
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Product details
Overview
BZX84B5V6Q-7-F from Diodes Incorporated is an AEC-Q101 qualified, ±2% tolerance precision Zener diode in SOT23 package, rated for 350 mW power dissipation and 5.6 V nominal Zener voltage at 5 mA test current, with 40 Ω dynamic impedance and -2.0 mV/°C temperature coefficient - used for voltage regulation and reference in automotive power supply monitoring circuits.
For engineers reviewing the BZX84B5V6Q-7-F datasheet, BZX84B5V6Q-7-F pinout, BZX84B5V6Q-7-F application, or BZX84B5V6Q-7-F equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (357 °C/W), reverse leakage (<1.0 µA at 2.0 V), junction-to-ambient thermal performance, and automotive qualification status.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage under varying load and temperature conditions. Its 5.6 V nominal Zener voltage is specified at 5 mA test current, with tight ±2% tolerance and low 40 Ω impedance at that point, ensuring minimal voltage deviation across operating current range.
The device features a negative temperature coefficient of -2.0 mV/°C, enabling predictable drift compensation in reference designs. It is qualified to AEC-Q101 standards and built in a green, halogen-free SOT23 package with matte tin-plated terminals suitable for lead-free reflow soldering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.6 V nominal, 5.49–5.71 V range at 5 mA - defines precise regulation point for feedback or reference nodes. |
| Zener Tolerance | ±2% - ensures tight voltage accuracy without post-production trimming in automotive sensor biasing. |
| Power Dissipation | 350 mW - supports continuous operation in compact PCB layouts with adequate thermal relief. |
| Zener Impedance (ZZT) | 40 Ω at 5 mA - limits output voltage variation under load transients in voltage clamp applications. |
| Reverse Leakage (IR) | <1.0 µA at 2.0 V - minimizes standby current in battery-backed voltage monitor circuits. |
| Temperature Coefficient | -2.0 mV/°C - enables predictable thermal drift modeling for compensated reference designs. |
| Thermal Resistance (RθJA) | 357 °C/W - determines junction temperature rise above ambient under full power in standard FR-4 layout. |
Pinout & Package
Package: SOT23 - surface-mount, 3-terminal plastic case with 0.008 g mass, UL 94V-0 rating, and moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal / cathode reference ground | Connected to system ground or lower-potential node when used in shunt regulation. |
| Cathode (Pin 2) | Zener breakdown terminal / regulated output node | Provides stable 5.6 V reference relative to anode; connects to feedback or sense point. |
| No Connection (Pin 3) | Internal die attach / thermal slug | Electrically isolated; serves mechanical anchoring and minor thermal conduction path in SOT23. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood and infotainment systems requiring high reliability over temperature and lifetime. |
| ±2% Zener voltage tolerance | Eliminates need for external calibration in voltage supervisor ICs and analog front-end references. |
| Green, halogen-free construction | Meets EU RoHS 3 (2015/863/EU) and automotive environmental compliance requirements. |
| SOT23 footprint compatibility | Enables drop-in replacement in existing 3-pin SOT23 layouts without PCB redesign. |
| Low 40 Ω dynamic impedance | Maintains regulation stability under ±1 mA load variation in 12 V rail monitoring circuits. |
Applications
| Automotive Battery Monitor | Industrial Sensor Reference |
|---|---|
Use Scenario: Monitoring 12 V vehicle battery voltage against undervoltage/overvoltage thresholds in body control modules. IC Role / Device Role / Timing Role: Shunt Zener reference for comparator input or ADC reference divider network. Use Value: ±2% tolerance ensures accurate trip-point detection across -40°C to +125°C without software calibration. |
Use Scenario: Providing stable bias voltage for RTD or thermistor signal conditioning in PLC analog input modules. IC Role / Device Role / Timing Role: Precision voltage reference for op-amp gain-setting or ADC reference scaling. Use Value: Low 40 Ω impedance prevents reference droop during multiplexed channel switching events. |
| USB-C Power Delivery Clamp | IoT Node Voltage Supervisor |
Use Scenario: Clamping transient overvoltage on USB-C CC line during hot-plug events in portable docking stations. IC Role / Device Role / Timing Role: Fast-response Zener clamp protecting Type-C controller GPIO pins. Use Value: 350 mW rating sustains 100 ms surges up to 8 V without degradation, per IEC 61000-4-5 Level 2. |
Use Scenario: Enabling brown-out detection in battery-powered smart meters with ultra-low quiescent current. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 µA) Zener element in discrete reset circuitry. Use Value: Sub-µA reverse current extends shelf life and reduces sleep-mode power by >15% vs. generic Zeners. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5232BS-7-F | Same 5.6 V nominal, but ±5% tolerance and 225 mW rating; higher 100 Ω ZZT. | Limited to non-automotive consumer power rails where tighter regulation isn't required. | Select when cost sensitivity outweighs voltage accuracy and thermal margin needs. |
| BZX84-C5V6-7-F | Same SOT23 package and 5.6 V nominal, but ±5% tolerance and no AEC-Q101 qualification. | Suitable for industrial controls but not automotive ECUs due to unqualified reliability testing. | Choose only for non-automotive designs where qualification documentation is not mandated. |
Compared with MMBZ5232BS-7-F and BZX84-C5V6-7-F, BZX84B5V6Q-7-F delivers superior voltage accuracy, higher power handling, and certified automotive reliability - making it the sole choice for safety-critical voltage supervision in AEC-Q101-compliant systems.
Availability
BZX84B5V6Q-7-F is available at Aetrix Electronics and suitable for automotive battery monitoring, industrial sensor reference design, USB-C power delivery protection, and IoT node voltage supervision requiring stable component supply across extended temperature and lifecycle demands.
Supply support for BZX84B5V6Q-7-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets.
BZX84B series belongs to Diodes' precision Zener portfolio designed specifically for AEC-Q101-compliant voltage regulation and reference applications in harsh-environment electronics.
FAQ
What is the maximum reverse voltage (VR) this Zener can withstand before breakdown?
The BZX84B5V6Q-7-F has a nominal Zener voltage of 5.6 V at 5 mA, and its reverse breakdown is specified to occur within 5.49–5.71 V. It is not rated for sustained reverse voltage above its Zener voltage - operation beyond this range risks irreversible avalanche damage unless current-limited to ≤350 mW.
Does this part require a series resistor in all applications?
Yes - a current-limiting resistor is mandatory to prevent thermal runaway. For example, at 12 V supply and 5.6 V Zener voltage, a 1 kΩ resistor limits current to ~6.4 mA, keeping power dissipation below 350 mW while maintaining regulation stability across temperature.
How does the -2.0 mV/°C temperature coefficient affect long-term stability?
The negative coefficient means output voltage decreases by 2.0 mV per °C rise in junction temperature. Over a -40°C to +125°C range, total drift is ~330 mV - acceptable for non-precision monitoring but requires compensation in high-accuracy references using matched components or calibration.
Is the SOT23 pinout compatible with legacy BZX84 series parts?
Yes - all BZX84 variants use identical SOT23 pinout: Pin 1 = Anode, Pin 2 = Cathode, Pin 3 = NC (die attach). The Q-suffix denotes AEC-Q101 qualification but retains full mechanical and electrical pin compatibility with standard BZX84 parts.
BZX84B5V6Q-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BZX84B5V6Q-7-F FAQ
1.How can I place an order for BZX84B5V6Q-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84B5V6Q-7-F 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 BZX84B5V6Q-7-F reliable?
The price and inventory of BZX84B5V6Q-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84B5V6Q-7-F is usually 5 days.
3.What payment methods are accepted for BZX84B5V6Q-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84B5V6Q-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84B5V6Q-7-F?
BZX84B5V6Q-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84B5V6Q-7-F 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 BZX84B5V6Q-7-F?
For technical support, including BZX84B5V6Q-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84B5V6Q-7-F requirements.
6.How does Aetrix verify that BZX84B5V6Q-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84B5V6Q-7-F 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 BZX84B5V6Q-7-F meets industry standards.
7.What is the process for return or replacement of BZX84B5V6Q-7-F?
All BZX84B5V6Q-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84B5V6Q-7-F, 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 BZX84B5V6Q-7-F part is unused and in its original packaging.
Return procedure for BZX84B5V6Q-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84B5V6Q-7-F Tags
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