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Nexperia USA Inc. BZX84W-B6V2F
- Part No.:
- BZX84W-B6V2F
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84W-B6V2F.pdf
- Description:
- DIODE ZENER 6.2V 275MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:9,059
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Product details
Overview
BZX84W-B6V2F from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT323 (SC-70) package, designed for precision voltage reference and clamping in low-power circuits. It delivers 6.2 V nominal Zener voltage at 5 mA, with 10 Ω typical differential resistance, 2.3 mV/K temperature coefficient, and 275 mW total power dissipation on FR4 PCB. Used in power supply feedback loops and overvoltage protection for microcontroller I/O lines.
For engineers reviewing the BZX84W-B6V2F datasheet, BZX84W-B6V2F pinout, BZX84W-B6V2F application, or BZX84W-B6V2F equivalent, key selection criteria include Zener voltage tolerance (±2 %), low dynamic impedance (10 Ω at 5 mA), thermal coefficient behavior (2.3 mV/K), and SOT323 footprint compatibility with high-density PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across its terminals under varying current conditions. Its 6.2 V nominal regulation point is specified at IZ = 5 mA with ±2 % tolerance, and exhibits low differential resistance (10 Ω typ.) ensuring minimal voltage shift with load current changes.
Thermal performance is defined by a junction-to-ambient thermal resistance of 455 K/W on standard FR4 PCB, enabling reliable operation up to 150 °C junction temperature. Reverse leakage remains ≤3 µA at 4 V, supporting low-power standby functionality in battery-operated systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.2 V nominal at IZ = 5 mA; tight ±2 % tolerance ensures predictable regulation in feedback networks. |
| Differential Resistance (rdif) | 10 Ω typical at IZ = 5 mA; low impedance minimizes output voltage variation under dynamic load shifts. |
| Temperature Coefficient (SZ) | +2.3 mV/K at IZ = 5 mA; positive drift enables predictable compensation in temperature-sensitive references. |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA; supports bidirectional clamping when used with series resistor in signal line protection. |
| Total Power Dissipation (Ptot) | 275 mW on FR4 PCB with single-sided copper; defines maximum continuous DC power handling in compact layouts. |
| Reverse Leakage Current (IR) | ≤3 µA at VR = 4 V; enables low quiescent current operation in always-on monitoring circuits. |
| Junction Temperature (Tj) | −55 °C to +150 °C operating range; supports industrial and extended-temperature embedded applications. |
Pinout & Package
SOT323 (SC-70) leadless surface-mount plastic package with 3 terminals, 1.3 mm × 1.8 mm footprint, and 0.65 mm pitch. Designed for reflow soldering per IPC-J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-biased terminal; connects to lower-potential node in Zener regulation configuration. |
| 2 | Not Connected (n.c.) | Internally unconnected; must remain floating-no PCB trace or pad connection required. |
| 3 | Cathode (K) | Reverse-biased terminal; connects to higher-potential node and serves as regulated output reference point. |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables accurate voltage setting without post-production trimming in 3.3 V and 5 V system rails. |
| Low 10 Ω differential resistance | Maintains regulation stability across 1–10 mA load current variations in LDO feedback paths. |
| Positive 2.3 mV/K temperature coefficient | Compensates for negative TC components (e.g., BJTs) in mixed-technology reference designs. |
| 275 mW power rating on FR4 | Supports sustained operation in space-constrained consumer and industrial PCBs without heatsinking. |
| SOT323 package with n.c. pin | Reduces parasitic capacitance (<2 pF at 1 MHz) for effective high-frequency noise suppression. |
Applications
| Power Supply Feedback Reference | Microcontroller I/O Clamp Protection |
|---|---|
|
Use Scenario: Stabilizing output voltage in adjustable buck converter feedback network using TLV431 or similar shunt regulator. IC Role / Device Role / Timing Role: Zener diode provides precise 6.2 V reference to set upper threshold of error amplifier input divider. Use Value: ±2 % tolerance and 10 Ω rdif limit output voltage drift to <±1.5% across line/load/temperature in 12 V → 5 V conversion. |
Use Scenario: Protecting 3.3 V GPIO pins against ESD transients and accidental 5 V misconnection. IC Role / Device Role / Timing Role: Bidirectional clamp formed with series resistor limits pin voltage to 6.2 V + VF during overvoltage events. Use Value: 3 µA leakage at 4 V prevents measurable current draw in sleep mode; 0.9 V forward drop enables fast turn-on during transient suppression. |
| Low-Power Sensor Biasing | High-Frequency Signal Level Shifting |
|
Use Scenario: Providing stable bias voltage for analog sensor front-end op-amps in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Zener acts as low-current voltage source replacing resistive divider to improve PSRR and reduce quiescent drain. Use Value: 275 mW rating allows operation at 100 µA–2 mA range; +2.3 mV/K TC matches common op-amp offset drift for net-zero system drift. |
Use Scenario: AC-coupling and level-shifting of 10–50 MHz clock signals between 1.8 V and 3.3 V domains. IC Role / Device Role / Timing Role: Zener cathode tied to 3.3 V rail, anode to AC-coupled signal; clamps negative swing to −0.9 V and positive to 6.2 V. Use Value: SOT323 package capacitance <2 pF avoids signal integrity degradation; n.c. pin eliminates parasitic coupling in RF-sensitive paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5234BS | 6.2 V, ±5 % tolerance, 100 Ω rdif, SOT-323 package | Higher impedance reduces regulation accuracy in precision feedback; suitable only for non-critical clamping | Select when cost sensitivity outweighs voltage stability requirements and tighter tolerance is not needed. |
| Vishay BZX84-C6V2 | 6.2 V, ±5 % tolerance, 15 Ω rdif, same SOT323 footprint | Looser tolerance increases output variance in closed-loop systems; acceptable for general-purpose clamping | Choose for legacy designs where ±5 % is sufficient and cross-manufacturer second sourcing is required. |
Compared with BZX84W-B6V2F, MMBZ5234BS offers lower cost but sacrifices regulation precision due to 10× higher dynamic impedance, while BZX84-C6V2 maintains mechanical compatibility but trades ±2 % tolerance for broader ±5 % spec-critical in feedback-critical applications.
Availability
BZX84W-B6V2F is available at Aetrix Electronics and suitable for power supply feedback reference, microcontroller I/O clamp protection, low-power sensor biasing, and high-frequency signal level shifting requiring stable component supply across industrial, automotive-adjacent, and consumer electronics programs.
Supply support for BZX84W-B6V2F 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, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The BZX84W series belongs to Nexperia's general-purpose Zener diode product line, engineered for stable voltage regulation and clamping in space-constrained, high-reliability SMD applications with emphasis on tight tolerance and low dynamic impedance.
FAQ
What is the Zener test current for BZX84W-B6V2F?
The nominal Zener voltage of 6.2 V is specified at a test current of 5 mA, as confirmed in Table 8 of the Nexperia datasheet Rev. 2 (January 2023). This current level balances measurement repeatability with thermal stability and is used for both tolerance grading and differential resistance characterization.
Is Pin 2 truly unconnected, or does it serve a mechanical function?
Pin 2 is electrically unconnected (n.c.) and carries no internal bond wire or die connection. Its presence is purely mechanical-to provide structural symmetry and solder joint reliability in the SOT323 package-and must remain unconnected in PCB layout per Nexperia's pinning diagram and mounting guidelines.
Can BZX84W-B6V2F be used in avalanche mode for ESD protection?
No-BZX84W-B6V2F is characterized and qualified exclusively as a Zener-regulator diode in controlled reverse breakdown. It lacks the specified non-repetitive peak pulse ratings (e.g., IEC 61000-4-2) required for certified ESD protection; dedicated TVS diodes like PESD5V0S1BA should be used instead.
How does the +2.3 mV/K temperature coefficient affect long-term voltage stability?
The +2.3 mV/K coefficient means the Zener voltage increases by approximately 11.5 mV over a 5 °C ambient rise. In a 50 °C operating range, this yields ~115 mV total drift-manageable in open-loop references but requires compensation (e.g., with NTC thermistor) in high-accuracy instrumentation-grade applications.
BZX84W-B6V2F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX84W
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±2%
- Power - Max:
- 275 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 4 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BZX84W-B6V2F FAQ
1.How can I place an order for BZX84W-B6V2F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84W-B6V2F 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 BZX84W-B6V2F reliable?
The price and inventory of BZX84W-B6V2F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84W-B6V2F is usually 5 days.
3.What payment methods are accepted for BZX84W-B6V2F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84W-B6V2F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84W-B6V2F?
BZX84W-B6V2F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84W-B6V2F 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 BZX84W-B6V2F?
For technical support, including BZX84W-B6V2F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84W-B6V2F requirements.
6.How does Aetrix verify that BZX84W-B6V2F is sourced from the original manufacturer or authorized distributors?
All BZX84W-B6V2F 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 BZX84W-B6V2F meets industry standards.
7.What is the process for return or replacement of BZX84W-B6V2F?
All BZX84W-B6V2F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84W-B6V2F, 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 BZX84W-B6V2F part is unused and in its original packaging.
Return procedure for BZX84W-B6V2F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84W-B6V2F Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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