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Nexperia USA Inc. BZX884S-C4V3-QYL
- Part No.:
- BZX884S-C4V3-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884S-C4V3-QYL.pdf
- Description:
- DIODE ZENER 4.3V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:8,694
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Product details
Overview
BZX884S-C4V3-QYL from Nexperia is a ±5 % tolerance Zener diode in a leadless DFN1006BD-2 (SOD882BD) package, designed for precision voltage regulation and reference functions at 4.3 V nominal breakdown voltage with 3 μA reverse current at 3.0 V, 410 Ω differential resistance at 5 mA, and −3.5 to 0.0 mV/K temperature coefficient - used in automotive power supply monitoring and sensor biasing circuits.
For engineers reviewing the BZX884S-C4V3-QYL datasheet, BZX884S-C4V3-QYL pinout, BZX884S-C4V3-QYL application, or BZX884S-C4V3-QYL equivalent, this page delivers verified package dimensions, cathode/anode terminal mapping, AEC-Q101 qualification status, thermal resistance (340 K/W), and automotive-grade stability data - critical for ECU voltage rail supervision and low-power analog reference design.
Technical Context
This Zener diode operates in reverse-bias breakdown mode with a nominal 4.3 V regulation voltage at IZ = 5 mA, exhibiting a typical differential resistance of 410 Ω and a temperature coefficient ranging from −3.5 mV/K to 0.0 mV/K across its operating current range. Its side-wettable flanks enable automated optical inspection (AOI) during reflow soldering on FR4 PCBs.
Qualified per AEC-Q101, it supports ambient temperatures from −55 °C to +150 °C and junction temperatures up to 150 °C, with total power dissipation limited to 365 mW under standard mounting conditions - making it suitable for space-constrained automotive modules where thermal reliability and solder joint integrity are essential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.00 V to 4.60 V at IZ = 5 mA - defines stable regulation window for 3.3 V/5 V rail clamping and reference generation |
| Differential Resistance (rdif) | 410 Ω typical at IZ = 5 mA - determines output impedance and load regulation sensitivity in feedback paths |
| Reverse Current (IR) | 3 μA max at VR = 3.0 V - ensures low leakage in standby-mode voltage monitors and battery-backed circuits |
| Power Dissipation (Ptot) | 365 mW max on FR4 PCB with 70 μm copper - sets maximum continuous Zener current (~85 mA at 4.3 V) under standard layout |
| Thermal Resistance (Rth(j-a)) | 340 K/W - enables junction temperature estimation for derating in high-ambient automotive environments |
| Temperature Coefficient (SZ) | −3.5 mV/K to 0.0 mV/K - indicates negative-to-zero drift behavior critical for stable biasing over −40 °C to +125 °C |
| Package | DFN1006BD-2 (SOD882BD), 1.0 mm × 0.6 mm × 0.47 mm - ultra-small footprint with side-wettable flanks for AOI-compatible assembly |
Pinout & Package
The BZX884S-C4V3-QYL is housed in a 2-terminal leadless DFN1006BD-2 (SOD882BD) package with side-wettable flanks. The marking bar on the top surface identifies Terminal 1 as the cathode (K); Terminal 2 is the anode (A). Dimensions: 1.0 mm × 0.6 mm × 0.47 mm body height, 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-bias voltage applied here to initiate Zener conduction |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS power domains |
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints without X-ray, improving manufacturing yield |
| ±5 % voltage tolerance | Supports cost-sensitive designs where tighter tolerance is unnecessary, e.g., non-critical biasing |
| Ultra-small DFN1006BD-2 footprint | Reduces board area by >50 % vs. SOD-323, enabling dense placement in compact ECUs and sensors |
| 150 °C max junction temperature | Allows operation in under-hood environments without thermal derating below rated power |
Applications
| Automotive Power Rail Supervision | Sensor Bias Reference |
|---|---|
|
Use Scenario: Monitoring 5 V microcontroller supply rail in engine control unit (ECU) for undervoltage detection. IC Role / Device Role / Timing Role: Zener diode provides stable 4.3 V reference to comparator input for rail fault flagging. Use Value: Low 3 μA leakage at 3.0 V ensures minimal quiescent current draw during vehicle sleep mode. |
Use Scenario: Generating precise bias voltage for MEMS pressure sensor front-end amplifier. IC Role / Device Role / Timing Role: Functions as shunt reference to set DC operating point of op-amp input stage. Use Value: −3.5 to 0.0 mV/K temperature coefficient minimizes offset drift across −40 °C to +125 °C. |
| Low-Power IoT Node Regulation | Industrial Signal Conditioning |
|
Use Scenario: Regulating 3.3 V supply for BLE SoC in battery-powered telematics module. IC Role / Device Role / Timing Role: Clamps transient overvoltage on LDO input while maintaining stable reference for ADC reference buffer. Use Value: 410 Ω differential resistance limits output impedance impact on reference stability under load variation. |
Use Scenario: Providing stable 4.3 V reference for 12-bit DAC in programmable logic controller (PLC) analog output stage. IC Role / Device Role / Timing Role: Acts as precision shunt regulator in feedback loop of op-amp-based voltage reference circuit. Use Value: AEC-Q101 qualification ensures long-term reliability in industrial environments with wide thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX884S-B4V3-Q | ±2 % tolerance (vs. ±5 %), 4.21–4.39 V range, 410 Ω rdif | Higher accuracy required in precision reference circuits; tighter thermal drift spec | Select when voltage stability < ±20 mV is mandatory, e.g., calibration-critical instrumentation |
| MMSZ4V3T1G | ±5 % tolerance, SOD-123 package (2.7 mm × 1.6 mm), 500 mW Ptot, 600 Ω rdif | Larger footprint, higher power handling, but lower regulation precision and no AEC-Q101 rating | Choose for non-automotive, cost-driven designs needing higher surge tolerance and manual rework compatibility |
Compared with BZX884S-C4V3-QYL, the BZX884S-B4V3-Q offers tighter voltage control at the expense of higher cost and identical thermal performance, while MMSZ4V3T1G trades automotive qualification and miniaturization for easier handling and higher power margin in industrial prototypes.
Availability
BZX884S-C4V3-QYL is available at Aetrix Electronics and suitable for automotive ECU power supervision, MEMS sensor biasing, low-power IoT node regulation, and industrial PLC signal conditioning requiring stable component supply and AEC-Q101 compliance.
Supply support for BZX884S-C4V3-QYL 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 BZX884S-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for space-constrained automotive and industrial voltage reference and regulation applications demanding robust thermal performance and AOI-compatible assembly.
FAQ
What is the maximum continuous Zener current for BZX884S-C4V3-QYL at 25 °C ambient?
At Tamb = 25 °C on a standard FR4 PCB with 70 μm copper, the device supports up to 85 mA continuous Zener current (365 mW ÷ 4.3 V), assuming no additional thermal resistance. Derating is required above 25 °C using Rth(j-a) = 340 K/W to maintain Tj ≤ 150 °C.
How does the side-wettable flank design improve manufacturability?
The side-wettable flanks on the DFN1006BD-2 package allow automated optical inspection (AOI) systems to verify solder joint quality without X-ray imaging. This reduces test cost and increases first-pass yield in high-volume automotive PCB assembly lines where process control is critical.
Is BZX884S-C4V3-QYL suitable for use in battery management systems (BMS)?
Yes - its 3 μA reverse leakage at 3.0 V, AEC-Q101 qualification, and −55 °C to +150 °C operating range make it appropriate for cell voltage monitoring references and overvoltage clamp circuits in automotive BMS modules, provided power dissipation remains within 365 mW limits under worst-case load.
What marking code identifies BZX884S-C4V3-QYL on the device surface?
The marking code is "4U", printed on the top surface adjacent to the cathode bar. This matches Table 4 in the datasheet and distinguishes it from the ±2 % variant (BZX884S-B4V3-Q, marked "2G") and other voltage grades in the same series.
BZX884S-C4V3-QYL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-882
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.3 V
- Tolerance:
- ±6.98%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 3 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:
- DFN1006BD-2
BZX884S-C4V3-QYL FAQ
1.How can I place an order for BZX884S-C4V3-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884S-C4V3-QYL 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 BZX884S-C4V3-QYL reliable?
The price and inventory of BZX884S-C4V3-QYL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX884S-C4V3-QYL is usually 5 days.
3.What payment methods are accepted for BZX884S-C4V3-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884S-C4V3-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884S-C4V3-QYL?
BZX884S-C4V3-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884S-C4V3-QYL 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 BZX884S-C4V3-QYL?
For technical support, including BZX884S-C4V3-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884S-C4V3-QYL requirements.
6.How does Aetrix verify that BZX884S-C4V3-QYL is sourced from the original manufacturer or authorized distributors?
All BZX884S-C4V3-QYL 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 BZX884S-C4V3-QYL meets industry standards.
7.What is the process for return or replacement of BZX884S-C4V3-QYL?
All BZX884S-C4V3-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX884S-C4V3-QYL, 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 BZX884S-C4V3-QYL part is unused and in its original packaging.
Return procedure for BZX884S-C4V3-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX884S-C4V3-QYL 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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Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
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