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Nexperia USA Inc. BZX84W-C6V2-QX
- Part No.:
- BZX84W-C6V2-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84W-C6V2-QX.pdf
- Description:
- DIODE ZENER 6.2V 275MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:4,117
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Product details
Overview
BZX84W-C6V2-Q from Nexperia is a ±5 % tolerance Zener diode in SOT323 (SC-70) package, rated for 6.2 V nominal regulation voltage at 5 mA, with 150 Ω differential resistance and 2.3 mV/K temperature coefficient, designed for precision voltage reference and overvoltage protection in automotive power rails.
For engineers reviewing the BZX84W-C6V2-Q datasheet, BZX84W-C6V2-Q pinout, BZX84W-C6V2-Q application, or BZX84W-C6V2-Q equivalent, this device serves as a compact, AEC-Q101-qualified Zener regulator for low-power biasing, ESD clamping, and supply rail stabilization where tight voltage tolerance and thermal stability are required.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified 6.2 V nominal Zener voltage at IZ = 5 mA, exhibiting low dynamic impedance (150 Ω) and positive temperature coefficient (+2.3 mV/K), enabling stable regulation across ambient temperatures from −55 °C to +150 °C.
It features a non-connected (n.c.) terminal (Pin 2), anode (Pin 1), and cathode (Pin 3), and is qualified per AEC-Q101 for automotive use-supporting reliable operation under thermal cycling, humidity, and mechanical stress conditions typical of engine control units and body electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.2 V nominal at IZ = 5 mA; ±5 % tolerance ensures regulation within 5.8–6.6 V in production. |
| Differential Resistance (rdiff) | 150 Ω at IZ = 5 mA; maintains low output impedance for stable reference under load variation. |
| Temperature Coefficient (SZ) | +2.3 mV/K at IZ = 5 mA; enables predictable voltage drift compensation in wide-temperature designs. |
| Reverse Current (IR) | 3 µA max at VR = 4 V; ensures minimal leakage during standby or low-power sleep modes. |
| Total Power Dissipation (Ptot) | 275 mW at Tamb = 25 °C on FR4 PCB; supports continuous regulation in space-constrained automotive modules. |
| Junction Temperature (Tj) | 150 °C maximum; allows operation in under-hood environments without derating below 125 °C ambient. |
| Package | SOT323 (SC-70); 1.3 mm × 1.75 mm footprint enables high-density layout in ADAS sensor modules and infotainment power supplies. |
Pinout & Package
SOT323 (SC-70) leadless surface-mount plastic package with 3 terminals, 0.65 mm pitch, and standard reflow-compatible footprint per Figure 9 of the datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Connected to lower-potential side of regulated node; reverse-biased during Zener operation. |
| 2 | Not Connected (n.c.) | Internally unconnected; must remain floating-no PCB trace or solder mask opening required. |
| 3 | Cathode (K) | Connected to higher-potential side (e.g., supply rail); carries Zener current during regulation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTOL, TC, HAST, and mechanical shock testing. |
| ±5 % Zener tolerance | Enables tighter system-level voltage margin control than ±10 % parts in 12 V rail monitoring circuits. |
| Low 150 Ω dynamic impedance | Reduces output voltage deviation under ±1 mA load step changes in microcontroller reset supervisor circuits. |
| Positive 2.3 mV/K tempco | Compensates for negative tempcos of other components (e.g., op-amp inputs) in analog sensor signal chains. |
| 275 mW power rating on FR4 | Supports sustained 5 mA Zener current without heatsinking in compact ECUs with limited airflow. |
Applications
| Engine Control Unit (ECU) Reference | Infotainment Power Sequencing |
|---|---|
|
Use Scenario: Providing stable 6.2 V reference for ADC voltage scaling and comparator thresholds in engine management systems. IC Role / Device Role / Timing Role: Precision Zener reference diode supplying bias to analog front-end circuitry. Use Value: Maintains <±10 mV reference drift over −40 °C to +125 °C ambient, ensuring consistent sensor measurement accuracy. |
Use Scenario: Clamping and regulating auxiliary 5 V rail during cold-crank and load-dump transients in head unit power supplies. IC Role / Device Role / Timing Role: Overvoltage protection and coarse regulation element in LDO pre-regulator stage. Use Value: Limits transient overshoot to ≤6.6 V (±5 %) while absorbing up to 40 W non-repetitive surge energy. |
| ADAS Camera Module Bias | Body Control Module (BCM) Reset Circuit |
|
Use Scenario: Generating clean bias voltage for CMOS image sensor analog blocks in rear-view camera modules. IC Role / Device Role / Timing Role: Low-noise Zener shunt regulator stabilizing sensor analog supply domain. Use Value: Delivers <3 µA leakage at 4 V reverse bias, minimizing quiescent current draw in always-on vision subsystems. |
Use Scenario: Setting precise reset threshold for microcontroller supervisory ICs in door module controllers. IC Role / Device Role / Timing Role: Voltage reference input to reset generator IC (e.g., MAX809). Use Value: Enables accurate 6.2 V ±0.31 V reset assertion point, preventing premature or delayed MCU boot-up. |
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 (5.9–6.5 V vs. 5.8–6.6 V), 10 Ω lower rdiff (140 Ω), identical package and AEC-Q101 qualification. | Preferred where tighter regulation tolerance is needed for high-accuracy ADC references. | Select when system-level voltage margin is <±30 mV and cost premium for ±2 % is acceptable. |
| MMSZ5234B-TP | ±5 % tolerance, 6.2 V nominal, but SOD-123 package (larger footprint), no AEC-Q101 qualification, 200 Ω rdiff. | Suitable for industrial or consumer boards where automotive qualification is not required. | Choose only for non-automotive designs needing same electrical specs but relaxed reliability requirements. |
Compared with BZX84W-C6V2-Q, the BZX84W-B6V2-Q offers tighter tolerance for precision references, while MMSZ5234B-TP trades automotive qualification and compact size for lower cost in non-automotive applications-making the C-series optimal for cost-sensitive AEC-Q101-compliant designs requiring ±5 % regulation.
Availability
BZX84W-C6V2-Q is available at Aetrix Electronics and suitable for automotive ECU design, ADAS camera power conditioning, and body control module reset supervision requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for BZX84W-C6V2-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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
The BZX84W-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for robust voltage regulation and transient suppression in automotive power management and signal conditioning applications.
FAQ
What is the maximum reverse current at 4 V for BZX84W-C6V2-Q?
The maximum reverse current (IR) is 3 µA at VR = 4 V and Tj = 25 °C, as specified in Table 7 of the datasheet. This low leakage supports ultra-low-power operation in battery-backed systems and ensures minimal loading on upstream regulators.
Is Pin 2 electrically connected inside the BZX84W-C6V2-Q package?
No-Pin 2 is explicitly marked "n.c." (not connected) in Table 2 and the simplified outline diagram. It is internally unconnected and must remain unattached on the PCB to avoid unintended parasitic paths or solder bridging risks.
Can BZX84W-C6V2-Q be used in place of a 6.2 V Zener with ±2 % tolerance?
Yes, but with reduced regulation accuracy: its ±5 % tolerance (5.8–6.6 V) widens the operating window compared to ±2 % parts (5.9–6.5 V). Use only where system-level voltage margins accommodate the broader range, such as in non-critical bias networks.
What is the thermal resistance from junction to ambient for this device?
Rth(j-a) is 455 K/W under free-air conditions on a standard FR4 PCB with single-sided copper and tin plating, as stated in Table 6. This value guides thermal derating-e.g., Ptot drops to ~150 mW at 85 °C ambient.
BZX84W-C6V2-QX 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-QX FAQ
1.How can I place an order for BZX84W-C6V2-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84W-C6V2-QX 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-QX reliable?
The price and inventory of BZX84W-C6V2-QX 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-QX is usually 5 days.
3.What payment methods are accepted for BZX84W-C6V2-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84W-C6V2-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84W-C6V2-QX?
BZX84W-C6V2-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84W-C6V2-QX 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-QX?
For technical support, including BZX84W-C6V2-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84W-C6V2-QX requirements.
6.How does Aetrix verify that BZX84W-C6V2-QX is sourced from the original manufacturer or authorized distributors?
All BZX84W-C6V2-QX 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-QX meets industry standards.
7.What is the process for return or replacement of BZX84W-C6V2-QX?
All BZX84W-C6V2-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZX84W-C6V2-QX, 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-QX part is unused and in its original packaging.
Return procedure for BZX84W-C6V2-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84W-C6V2-QX 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
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SMAZ12-13-F
Diodes Incorporated
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