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Nexperia USA Inc. BZX84W-C2V4-QF
- Part No.:
- BZX84W-C2V4-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84W-C2V4-QF.pdf
- Description:
- DIODE ZENER 2.4V 275MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:7,487
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Product details
Overview
BZX84W-C2V4-QF from Nexperia is a ±5 % tolerance Zener diode in SOT323 (SC-70) package, rated for 2.4 V nominal regulation voltage at 5 mA, with 275 mW total power dissipation and qualified to AEC-Q101 for automotive use. It delivers stable voltage reference in low-power biasing, overvoltage clamping, and signal-level regulation circuits.
For engineers reviewing the BZX84W-C2V4-QF datasheet, BZX84W-C2V4-QF pinout, BZX84W-C2V4-QF application, or BZX84W-C2V4-QF equivalent, key selection factors include Zener voltage tolerance, thermal resistance (455 K/W), reverse leakage at 1 V (50 µA), differential resistance (600 Ω at 1 mA), and AEC-Q101 qualification status.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal 2.4 V Zener voltage at IZ = 5 mA, exhibiting a negative temperature coefficient of −1.6 mV/K across 25–150 °C. Its differential resistance remains ≤600 Ω at 1 mA and ≤100 Ω at 5 mA, supporting stable regulation under varying load currents.
The device features a non-connected (n.c.) terminal (Pin 2), enabling simplified PCB layout while maintaining anode (Pin 1) and cathode (Pin 3) functionality. Its SOT323 footprint supports high-density placement in space-constrained automotive and industrial control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.20 V to 2.60 V at IZ = 5 mA - defines regulation band for precision biasing in 2.4 V rail applications |
| Tolerance | ±5 % - specifies maximum deviation from nominal 2.4 V, critical for voltage margining in safety-critical circuits |
| Power Dissipation (Ptot) | 275 mW on FR4 PCB - sets maximum continuous DC or low-duty-cycle pulse power handling capability |
| Reverse Leakage (IR) | 50 µA at VR = 1 V - determines minimum quiescent current draw in standby or high-impedance sensing nodes |
| Differential Resistance (rdif) | 600 Ω max at IZ = 1 mA - impacts regulation stiffness and output impedance in feedback paths |
| Thermal Resistance (Rth(j-a)) | 455 K/W - defines junction-to-ambient temperature rise per watt, limiting usable power in sealed enclosures |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - constrains forward conduction loss when used bidirectionally or as ESD clamp |
Pinout & Package
SOT323 (SC-70) plastic surface-mounted package with 3 leads: 1.3 mm × 1.8 mm footprint, 0.65 mm pitch, and 0.9 mm height - optimized for automated reflow assembly and high-volume automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-biased terminal; connects to lower-potential node during Zener operation (reverse bias) |
| 2 | Not Connected (n.c.) | Internally unconnected; must be left floating or tied to ground only if required by board layout constraints |
| 3 | Cathode (K) | Reverse-biased terminal; connects to higher-potential node to enable Zener breakdown regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock testing |
| Low-profile SOT323 package | Enables <1.0 mm component height and <2.0 mm² board area usage in compact ECUs and ADAS sensors |
| 2.4 V Zener voltage with ±5 % tolerance | Supports precise 2.4 V reference generation for microcontroller reset circuits and ADC reference buffers |
| 455 K/W thermal resistance | Allows operation up to 150 °C junction temperature with ≤0.6 °C/mW self-heating on standard FR4 |
| 50 µA reverse leakage at 1 V | Minimizes standby current in always-on vehicle networks and battery-backed monitoring systems |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating 2.4 V reference for LIN transceiver biasing and microcontroller I/O protection. IC Role / Device Role / Timing Role: Zener voltage reference and overvoltage clamp for 12 V automotive bus interface circuitry. Use Value: Ensures stable 2.4 V supply despite battery transients up to 40 V, meeting ISO 7637-2 Pulse 5a requirements. |
Use Scenario: Providing stable bias voltage for analog front-end amplifiers in 4–20 mA loop-powered pressure sensors. IC Role / Device Role / Timing Role: Precision shunt regulator establishing fixed reference point for op-amp gain-setting resistors. Use Value: Maintains <±1 % reference accuracy over −40 to +125 °C ambient, eliminating need for external trimming. |
| USB-C Power Delivery Monitoring | Smart Meter Voltage Supervision |
Use Scenario: Clamping CC line voltage during hot-plug events in USB-C PD controllers. IC Role / Device Role / Timing Role: Fast-response transient suppressor protecting CC logic inputs from ESD and inductive spikes. Use Value: Limits CC line to ≤2.6 V during fault conditions while drawing <1 µA in normal operation. |
Use Scenario: Generating watchdog reset threshold for microcontroller supervision in electricity meter SoCs. IC Role / Device Role / Timing Role: Low-power voltage monitor triggering reset when main 3.3 V rail drops below 2.4 V. Use Value: Delivers guaranteed trip point with ±5 % tolerance and <100 ns response to brownout events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84W-B2V4-Q | ±2 % tolerance (vs. ±5 %); identical package, Zener voltage, and power rating | Required where tighter voltage margining is needed for high-accuracy references | Select when design requires <±25 mV regulation window at 25 °C; otherwise BZX84W-C2V4-QF offers cost advantage |
| MMSZ4678T1G | 2.4 V nominal, ±5 %, SOD-123 package (3.7 mm × 1.6 mm), 500 mW Ptot, Rth(j-a) = 300 K/W | Better thermal performance but larger footprint; not AEC-Q101 qualified | Choose for non-automotive industrial designs needing higher power headroom and lower thermal resistance |
Compared with BZX84W-C2V4-QF, BZX84W-B2V4-Q improves voltage accuracy at the cost of tighter process control, while MMSZ4678T1G trades automotive qualification and compact size for higher power and thermal capability-making each suitable for distinct reliability, space, and thermal budgets.
Availability
BZX84W-C2V4-QF is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, USB-C PD protection circuits, and smart meter voltage supervision requiring stable component supply with AEC-Q101 assurance.
Supply support for BZX84W-C2V4-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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and energy-efficient solutions.
The BZX84W-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode product line, engineered specifically for robust voltage regulation and transient suppression in harsh automotive and industrial environments.
FAQ
What is the maximum continuous reverse current this Zener can handle at 25 °C?
The BZX84W-C2V4-QF has no specified maximum continuous reverse current, but its 275 mW total power dissipation limits steady-state Zener current to approximately 115 mA at 2.4 V (P = V × I). Operation above this level risks exceeding thermal limits unless heatsinking is applied.
Can Pin 2 (n.c.) be grounded without affecting regulation performance?
Yes - Pin 2 is internally not connected and may be grounded, left floating, or routed to copper pour without altering electrical characteristics. Grounding it poses no functional risk but provides no benefit; layout best practice is to leave it unconnected unless required for mechanical stability.
How does the −1.6 mV/K temperature coefficient impact long-term voltage stability?
At 25–150 °C ambient, the Zener voltage drifts −1.6 mV per Kelvin, resulting in ~−200 mV total shift over 125 K range. This translates to ~−8.3 % deviation from 2.4 V nominal, which must be accounted for in wide-temperature applications like engine bay sensors.
Is this part suitable for ESD protection on 3.3 V I/O lines?
No - with a 2.4 V Zener voltage, it clamps below the 3.3 V rail and risks false triggering during normal operation. For 3.3 V I/O protection, a 3.6 V or higher Zener (e.g., BZX84W-C3V6-Q) is required to avoid interfering with valid signal levels.
BZX84W-C2V4-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):
- 2.4 V
- Tolerance:
- ±8.33%
- Power - Max:
- 275 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 µA @ 1 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-C2V4-QF FAQ
1.How can I place an order for BZX84W-C2V4-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84W-C2V4-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-C2V4-QF reliable?
The price and inventory of BZX84W-C2V4-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-C2V4-QF is usually 5 days.
3.What payment methods are accepted for BZX84W-C2V4-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84W-C2V4-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84W-C2V4-QF?
BZX84W-C2V4-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84W-C2V4-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-C2V4-QF?
For technical support, including BZX84W-C2V4-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84W-C2V4-QF requirements.
6.How does Aetrix verify that BZX84W-C2V4-QF is sourced from the original manufacturer or authorized distributors?
All BZX84W-C2V4-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-C2V4-QF meets industry standards.
7.What is the process for return or replacement of BZX84W-C2V4-QF?
All BZX84W-C2V4-QF units undergo pre-shipment inspection (PSI). If there is an issue with BZX84W-C2V4-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-C2V4-QF part is unused and in its original packaging.
Return procedure for BZX84W-C2V4-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84W-C2V4-QF Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
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