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Nexperia USA Inc. BZX84W-C6V2-QF
- Part No.:
- BZX84W-C6V2-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84W-C6V2-QF.pdf
- Description:
- DIODE ZENER 6.2V 275MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:7,963
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Product details
Overview
BZX84W-C6V2-QF from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOT323 (SC-70) package, rated for 6.2 V nominal Zener voltage at 5 mA, with 150 Ω typical differential resistance and 2.3 mV/K positive temperature coefficient. It delivers stable reference voltage in automotive power rail monitoring and ESD-protected signal conditioning circuits.
For engineers reviewing the BZX84W-C6V2-QF datasheet, BZX84W-C6V2-QF pinout, BZX84W-C6V2-QF application, or BZX84W-C6V2-QF equivalent, this page provides verified Zener parameters, AEC-Q101 qualification status, thermal resistance data, and automotive-grade replacement guidance - all confirmed from Nexperia's official Rev. 1 product data sheet dated 19 November 2021.
Technical Context
This Zener diode operates in reverse breakdown to maintain precise DC voltage regulation under varying load and temperature conditions. Its 6.2 V nominal Zener voltage is specified at IZ = 5 mA with ±5 % tolerance, and exhibits a positive temperature coefficient of +2.3 mV/K, ensuring predictable drift in automotive ambient ranges (−40 °C to +125 °C).
The device features low dynamic impedance (150 Ω max at 5 mA), 3 µA maximum reverse leakage at VR = 4 V, and is qualified per AEC-Q101 for automotive use. Thermal resistance from junction to ambient is 455 K/W on FR4 PCB, limiting continuous power dissipation to 275 mW at Tamb = 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.2 V nominal at IZ = 5 mA; ±5 % tolerance ensures stable reference within 5.8–6.6 V range |
| Differential Resistance (rdiff) | 150 Ω max at IZ = 5 mA; low impedance maintains regulation accuracy under load variation |
| Temperature Coefficient (SZ) | +2.3 mV/K at IZ = 5 mA; predictable positive drift supports thermal compensation design |
| Reverse Leakage (IR) | 3 µA max at VR = 4 V; minimal standby current preserves battery-powered circuit efficiency |
| Total Power Dissipation (Ptot) | 275 mW max on FR4 PCB; defines safe continuous operating envelope at room ambient |
| Junction Temperature (Tj) | 150 °C max; enables operation in under-hood automotive environments |
| AEC-Q101 Qualified | Yes; certified for automotive applications including engine control units and body electronics |
Pinout & Package
SOT323 (SC-70) leadless surface-mount plastic package with 3 terminals; compact 2.2 mm × 1.35 mm footprint optimized for high-density PCB layouts and reflow/wave soldering.
| 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 solder mask required |
| 3 | Cathode (K) | Reverse-biased terminal; connects to higher-potential node and serves as regulated output reference point |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q101 qualified - validated for temperature cycling, humidity, and mechanical stress in automotive ECUs |
| Low dynamic impedance | 150 Ω max at 5 mA - minimizes output voltage deviation during transient load changes |
| Precision voltage tolerance | ±5 % ('C' series) - enables tighter system-level voltage margining than standard ±10 % Zeners |
| Thermal stability | +2.3 mV/K tempco - allows predictable compensation in temperature-critical sensor bias networks |
| High-frequency suitability | 200 pF capacitance at 1 MHz - supports noise filtering and RF decoupling in switching power supply feedback paths |
Applications
| Automotive Power Rail Monitoring | Microcontroller Reset Circuit |
|---|---|
|
Use Scenario: Monitoring 12 V battery rail in vehicle infotainment head unit to detect undervoltage conditions before brownout. IC Role / Device Role / Timing Role: Zener diode provides fixed 6.2 V reference to comparator input; triggers reset when scaled battery voltage falls below threshold. Use Value: AEC-Q101 qualification ensures reliability across −40 °C to +125 °C ambient, while ±5 % tolerance guarantees consistent trip point across production lots. |
Use Scenario: Generating clean reset signal for ARM Cortex-M4 MCU during cold start and power-up sequencing. IC Role / Device Role / Timing Role: Acts as precision voltage clamp in RC-based reset generator, defining exact voltage threshold for POR detection. Use Value: Low 3 µA leakage at 4 V prevents capacitor discharge delay, enabling fast, deterministic reset assertion within 100 ms. |
| ESD-Protected Signal Conditioning | Switching Regulator Feedback Divider |
|
Use Scenario: Protecting analog sensor inputs (e.g., temperature or pressure) from transients in ADAS camera modules. IC Role / Device Role / Timing Role: Placed in parallel with input filter capacitor to clamp ESD pulses above 6.2 V while passing DC sensor signal. Use Value: 40 W non-repetitive peak power rating (100 µs pulse) absorbs IEC 61000-4-2 Level 4 ESD events without degradation. |
Use Scenario: Setting output voltage of 3.3 V buck converter in telematics control unit using resistive divider with Zener reference. IC Role / Device Role / Timing Role: Replaces one resistor in feedback network to improve regulation accuracy against input voltage variation. Use Value: 150 Ω differential resistance reduces sensitivity to divider current mismatch, improving output voltage stability to ±1.2 % over line/load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84W-B6V2-Q | ±2 % tolerance (vs. ±5 %); tighter VZ spread but higher cost and reduced availability | Required where system-level voltage margin is < ±20 mV; not needed for general-purpose clamping | Select only if calibration-critical reference is required and cost premium is acceptable |
| MMSZ4687T1G | Same 6.2 V nominal, ±5 %, SOD-123 package; 350 mW Ptot, 220 Ω rdiff, not AEC-Q101 qualified | Suitable for industrial/commercial boards; lacks automotive stress test validation | Use for non-automotive designs where higher power handling offsets larger footprint |
Compared with BZX84W-C6V2-QF, the BZX84W-B6V2-Q offers tighter tolerance at higher cost and reduced supply chain flexibility, while MMSZ4687T1G trades AEC-Q101 compliance for greater power margin and wider commercial availability - making BZX84W-C6V2-QF the optimal balance of automotive reliability, size, and cost for Tier 1 ECU designs.
Availability
BZX84W-C6V2-QF is available at Aetrix Electronics and suitable for automotive power management, microcontroller reset generation, ESD protection circuits, and switching regulator feedback networks requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZX84W-C6V2-QF 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-enhancing components, delivering high-performance, reliable devices for automotive, industrial, and consumer markets.
BZX84W-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for robust voltage reference and clamping in harsh automotive environments - including engine control, body electronics, and ADAS subsystems.
FAQ
What is the maximum continuous forward current for BZX84W-C6V2-QF?
The device is a Zener diode intended for reverse-bias operation; its absolute maximum forward current is 200 mA per IEC 60134 limiting values. However, forward conduction is not its functional mode - sustained forward bias above 0.9 V at 10 mA risks thermal overstress and is not recommended in regulation applications.
Does BZX84W-C6V2-QF require a heatsink in standard PCB mounting?
No heatsink is required. With Rth(j-a) = 455 K/W on a single-sided FR4 board and Ptot = 275 mW, junction-to-ambient temperature rise is ~125 K at full power - keeping Tj within 150 °C limit only if ambient stays ≤25 °C. For automotive ambient up to 105 °C, derating to ≤100 mW is advised.
How does the 'QF' suffix differ from standard 'Q' in BZX84W-C6V2-QF?
The 'QF' suffix denotes Nexperia's automotive-grade packaging variant with enhanced moisture sensitivity level (MSL) 1 rating and extended reflow profile compatibility. It shares identical electrical specs and AEC-Q101 qualification with 'Q', but undergoes additional humidity preconditioning and solderability validation per J-STD-020.
Can BZX84W-C6V2-QF replace BZX84-C6V2 in existing designs?
Yes, with layout verification. Both share 6.2 V Zener voltage and ±5 % tolerance, but BZX84W-C6V2-QF uses SOT323 (SC-70), whereas legacy BZX84-C6V2 uses SOT23. The smaller SOT323 requires updated footprint and stencil design; thermal performance differs due to lower Ptot (275 mW vs. 350 mW), necessitating power derating review.
BZX84W-C6V2-QF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX84W-Q
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±6.45%
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BZX84W-C6V2-QF FAQ
1.How can I place an order for BZX84W-C6V2-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84W-C6V2-QF 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-C6V2-QF reliable?
The price and inventory of BZX84W-C6V2-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84W-C6V2-QF is usually 5 days.
3.What payment methods are accepted for BZX84W-C6V2-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84W-C6V2-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84W-C6V2-QF?
BZX84W-C6V2-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84W-C6V2-QF 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-C6V2-QF?
For technical support, including BZX84W-C6V2-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84W-C6V2-QF requirements.
6.How does Aetrix verify that BZX84W-C6V2-QF is sourced from the original manufacturer or authorized distributors?
All BZX84W-C6V2-QF 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-C6V2-QF meets industry standards.
7.What is the process for return or replacement of BZX84W-C6V2-QF?
All BZX84W-C6V2-QF units undergo pre-shipment inspection (PSI). If there is an issue with BZX84W-C6V2-QF, 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-C6V2-QF part is unused and in its original packaging.
Return procedure for BZX84W-C6V2-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84W-C6V2-QF Tags
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