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Nexperia USA Inc. BZX884S-B4V3-QYL
- Part No.:
- BZX884S-B4V3-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884S-B4V3-QYL.pdf
- Description:
- DIODE ZENER 4.3V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:251
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Product details
Overview
BZX884S-B4V3-QYL from Nexperia is a Zener voltage regulator diode in the BZX884S-Q series, designed for precision voltage reference and overvoltage protection in compact SMD circuits. It provides a nominal 4.3 V Zener voltage with ±2 % tolerance, 410 Ω typical differential resistance at 5 mA, and operates up to 365 mW total power dissipation on FR4 PCB. It is AEC-Q101 qualified for automotive body electronics and infotainment power rails.
For engineers reviewing the BZX884S-B4V3-QYL datasheet, BZX884S-B4V3-QYL pinout, BZX884S-B4V3-QYL application, or BZX884S-B4V3-QYL equivalent, key selection criteria include its ultra-small DFN1006BD-2 package with side-wettable flanks, low 3 μA reverse current at 1 V, −3.5 to 0.0 mV/K temperature coefficient, and suitability for space-constrained 12 V system clamping and biasing.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage regulation across load and line variations. Its 4.3 V nominal Zener voltage is specified at 5 mA test current, with differential resistance of 410 Ω (typ) ensuring minimal voltage deviation under dynamic current changes.
The device features side-wettable flanks in the SOD882BD (DFN1006BD-2) package for automated optical solder-joint inspection, and is qualified per AEC-Q101 for operation from −55 °C to +150 °C ambient, supporting automotive under-hood and dashboard applications requiring robust thermal stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.21 V to 4.39 V at IZ = 5 mA - tight ±2 % tolerance enables accurate 4.3 V reference without external trimming |
| Differential Resistance (rdif) | 410 Ω (typ) at IZ = 5 mA - low impedance ensures stable regulation under varying load currents |
| Reverse Current (IR) | 3 μA max at VR = 1 V - minimal leakage preserves battery life in always-on automotive modules |
| Total Power Dissipation (Ptot) | 365 mW on FR4 PCB with 70 μm copper - sufficient for transient clamping in 5–12 V rail protection |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - enables use as polarity protection diode in low-voltage bias paths |
| Thermal Resistance (Rth(j-a)) | 340 K/W - defines junction-to-ambient rise under full power, critical for thermal derating in sealed enclosures |
Pinout & Package
The BZX884S-B4V3-QYL is housed in a leadless DFN1006BD-2 (SOD882BD) package measuring 1.0 mm × 0.6 mm × 0.47 mm, with side-wettable flanks for AOI-compatible reflow soldering. The cathode is marked by a visible bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-biased during Zener operation; marking bar identifies this terminal |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes current path during regulation or clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 |
| Side-wettable flanks (SWF) | Enables automated optical inspection of solder joints without X-ray, reducing manufacturing defect escape |
| ±2 % Zener voltage tolerance | Eliminates need for post-solder calibration in 4.3 V reference designs for MCU reset circuits and ADC references |
| Ultra-small DFN1006BD-2 footprint | Reduces board area by >60 % vs. traditional SOD-323, enabling high-density layout in ADAS sensor modules |
| Low 3 μA reverse leakage @ 1 V | Minimizes standby current in always-on vehicle networks (e.g., LIN bus nodes), extending battery runtime |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating 4.3 V reference for microcontroller internal ADC and brown-out detection circuitry in door module ECUs. IC Role / Device Role / Timing Role: Zener voltage reference providing stable threshold for reset assertion and analog measurement accuracy. Use Value: Tight ±2 % tolerance ensures consistent reset voltage across temperature, eliminating field failures due to supply margin erosion. | Use Scenario: Clamping 0–5 V analog sensor outputs (e.g., pressure transducers) to prevent overvoltage damage to downstream op-amps. IC Role / Device Role / Timing Role: Reverse-biased overvoltage protector limiting signal swing to 4.3 V ±0.1 V during ESD transients. Use Value: 410 Ω differential resistance limits clamp current to <10 mA during 1 kV ESD events, preserving signal integrity. |
| USB-C Power Delivery Monitoring | Smart Lighting Driver Bias Network |
Use Scenario: Providing precise 4.3 V reference for voltage monitoring ICs in USB-C PD sink controllers managing 5–20 V input rails. IC Role / Device Role / Timing Role: Stable shunt reference enabling accurate input voltage scaling before ADC sampling. Use Value: Low 340 K/W thermal resistance allows direct mounting near PD controller IC without thermal runaway risk. | Use Scenario: Biasing gate drive circuitry in constant-current LED drivers where 4.3 V sets current-sense amplifier offset. IC Role / Device Role / Timing Role: Precision voltage source defining LED current setpoint independent of supply ripple. Use Value: −3.5 to 0.0 mV/K temperature coefficient minimizes drift across −40 °C to +105 °C ambient, maintaining lumen consistency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX884S-C4V3-Q | ±5 % tolerance (vs. ±2 %); higher 3 μA IR at 1 V; same package and VZ range | Suitable for non-critical biasing where cost sensitivity outweighs regulation accuracy | Select when budget constraints dominate and 4.3 V tolerance >±2 % is acceptable |
| MMSZ4V3T1G | ±5 % tolerance; SOD-123 package (1.8 mm × 1.4 mm); 500 mW Ptot; 600 Ω rdif | Requires larger PCB area; higher power handling but looser regulation and no AEC-Q101 qualification | Choose only if legacy SOD-123 footprint must be retained and automotive qualification is not required |
Compared with BZX884S-C4V3-Q and MMSZ4V3T1G, the BZX884S-B4V3-QYL delivers superior voltage accuracy and automotive qualification in the smallest footprint-making it optimal for next-gen space- and reliability-constrained designs where ±2 % regulation and AEC-Q101 compliance are mandatory.
Availability
BZX884S-B4V3-QYL is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and USB-C power delivery monitoring requiring stable component supply and AEC-Q101 traceability.
Supply support for BZX884S-B4V3-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 specializing in high-performance logic, discrete, and MOSFET devices, with leadership in automotive-qualified components and energy-efficient solutions.
The BZX884S-Q series belongs to Nexperia's automotive-grade Zener diode product line, engineered specifically for precision voltage reference and transient suppression in harsh-environment electronic control units.
FAQ
What is the maximum continuous reverse current the BZX884S-B4V3-QYL can sustain without degradation?
The device is rated for a maximum forward current of 200 mA per Absolute Maximum Ratings (Table 5), but sustained reverse conduction is limited by power dissipation. At 25 °C ambient on standard FR4, 365 mW power limit corresponds to ~85 mA at 4.3 V. Derating is required above 25 °C using the 340 K/W thermal resistance to avoid exceeding 150 °C junction temperature.
Does the side-wettable flank design require special stencil or reflow profile adjustments?
No special stencil is needed-the SOD882BD footprint matches standard DFN1006BD-2 land patterns (1.3 mm × 0.8 mm pads, 0.7 mm spacing). Reflow must follow JEDEC J-STD-020 profiles for MSLE Level 1; peak temperature ≤260 °C is mandatory. Side-wettable flanks enable post-reflow AOI without altering process parameters.
How does the temperature coefficient affect regulation accuracy over −40 °C to +125 °C?
At 4.3 V nominal, the SZ ranges from −3.5 to 0.0 mV/K (Table 8). Over a 165 K span, worst-case drift is ±578 mV-however, actual variation is nonlinear and minimized at IZ = 5 mA. For high-accuracy applications, pairing with a low-drift current source reduces effective TC impact to <±15 mV across the full range.
Can BZX884S-B4V3-QYL replace older BZX84-C4V3 in existing designs?
Yes, with caveats: both regulate at 4.3 V, but BZX884S-B4V3-QYL uses DFN1006BD-2 (1.0 mm × 0.6 mm) vs. SOT-23 (3.0 mm × 1.4 mm), requiring PCB redesign. Electrical specs are superior (tighter tolerance, lower rdif, AEC-Q101), but the smaller package demands careful thermal layout and reflow validation for solder joint integrity.
BZX884S-B4V3-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:
- ±2.09%
- 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-B4V3-QYL FAQ
1.How can I place an order for BZX884S-B4V3-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884S-B4V3-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-B4V3-QYL reliable?
The price and inventory of BZX884S-B4V3-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-B4V3-QYL is usually 5 days.
3.What payment methods are accepted for BZX884S-B4V3-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884S-B4V3-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884S-B4V3-QYL?
BZX884S-B4V3-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884S-B4V3-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-B4V3-QYL?
For technical support, including BZX884S-B4V3-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884S-B4V3-QYL requirements.
6.How does Aetrix verify that BZX884S-B4V3-QYL is sourced from the original manufacturer or authorized distributors?
All BZX884S-B4V3-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-B4V3-QYL meets industry standards.
7.What is the process for return or replacement of BZX884S-B4V3-QYL?
All BZX884S-B4V3-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX884S-B4V3-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-B4V3-QYL part is unused and in its original packaging.
Return procedure for BZX884S-B4V3-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX884S-B4V3-QYL Tags
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