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Nexperia USA Inc. BZX884S-B51-QYL
- Part No.:
- BZX884S-B51-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884S-B51-QYL.pdf
- Description:
- DIODE ZENER 51V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:9,942
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Product details
Overview
BZX884S-B51-QYL from Nexperia is a ±2 % tolerance Zener voltage regulator diode with nominal 51 V breakdown voltage, housed in an ultra-small DFN1006BD-2 (SOD882BD) leadless SMD package featuring side-wettable flanks. It delivers 365 mW total power dissipation at 25 °C on FR4 PCB, exhibits 90 Ω typical differential resistance at IZ = 2 mA, and is AEC-Q101 qualified for automotive voltage reference and overvoltage protection circuits.
For engineers reviewing the BZX884S-B51-QYL datasheet, BZX884S-B51-QYL pinout, BZX884S-B51-QYL application, or BZX884S-B51-QYL equivalent, this page provides verified Zener voltage, thermal resistance (340 K/W), reverse current (<0.05 μA at 38.3 V), temperature coefficient (+60 mV/K), and automotive-grade qualification status - all critical for precision biasing and ESD-tolerant regulation in space-constrained designs.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable 51 V reference voltage across load variations and temperature shifts. Its ±2 % tolerance ensures tight regulation accuracy, while the 90 Ω differential resistance at 2 mA test current minimizes output voltage drift under dynamic current conditions.
The device uses a planar silicon junction structure optimized for low noise and predictable temperature coefficient behavior (+60 mV/K at IZ = 2 mA), and its side-wettable flanks enable reliable automated optical inspection (AOI) of solder joints in high-volume automotive PCB assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 50.0 V to 52.0 V at IZ = 2 mA - defines precise regulation point for feedback loops and reference rails |
| Tolerance | ±2 % - enables tighter system-level voltage margin control vs. ±5 % variants |
| Differential Resistance rdif | 90 Ω typical at IZ = 2 mA - determines output impedance and load regulation error |
| Power Dissipation Ptot | 365 mW at Tamb = 25 °C on FR4 - sets maximum continuous DC or pulsed power handling capability |
| Thermal Resistance Rth(j-a) | 340 K/W - defines junction-to-ambient temperature rise per watt, critical for thermal derating |
| Reverse Current IR | <0.05 μA at VR = 38.3 V - ensures minimal leakage in standby or high-impedance sensing nodes |
| Temperature Coefficient SZ | +60 mV/K at IZ = 2 mA - quantifies voltage drift per degree Celsius for stability analysis |
Pinout & Package
Package: DFN1006BD-2 (SOD882BD), 1.0 mm × 0.6 mm × 0.47 mm body, leadless, side-wettable flanks, 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar on top surface identifies this terminal |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased operation requires cathode at higher potential |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood and infotainment applications requiring extended temperature (-55 °C to +150 °C) and reliability compliance |
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder fillets without X-ray, improving manufacturing yield in automotive SMT lines |
| Ultra-small footprint | 0.6 mm² board area (1.0 mm × 0.6 mm) saves space in dense power management and sensor interface PCBs |
| Low leakage performance | <0.05 μA reverse current at 75 % of VZ supports high-impedance voltage monitoring and battery-backed circuits |
| Stable temperature coefficient | +60 mV/K allows predictable compensation in temperature-sensitive analog front-ends and reference dividers |
Applications
| Automotive ECU Power Rail Clamping | Industrial Sensor Reference Biasing |
|---|---|
Use Scenario: Protecting microcontroller I/O pins and ADC inputs against load-dump transients in 12 V vehicle networks. IC Role / Device Role / Timing Role: Zener clamp placed between supply rail and ground to shunt excess energy during ISO 7637-2 Pulse 5a events. Use Value: 51 V breakdown voltage aligns with automotive 42 V max system requirement, enabling robust overvoltage suppression without crowbar circuitry. |
Use Scenario: Providing stable bias voltage for bridge-based pressure sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Precision reference source for Wheatstone bridge excitation in ratiometric measurement systems. Use Value: ±2 % tolerance and +60 mV/K TC ensure <±0.5 % total error over −40 °C to +85 °C, meeting Class A sensor accuracy requirements. |
| Telecom Line Interface Protection | Medical Instrument Voltage Monitoring |
Use Scenario: Guarding RS-485 transceiver inputs against induced surges on long industrial data cables. IC Role / Device Role / Timing Role: Low-capacitance (40 pF) Zener placed between differential lines and ground to clamp common-mode spikes. Use Value: 40 pF capacitance at 0 V prevents signal integrity degradation up to 10 Mbps, while 365 mW rating handles repetitive surge energy. |
Use Scenario: Monitoring battery pack voltage in portable diagnostic devices using high-impedance divider networks. IC Role / Device Role / Timing Role: Low-leakage (0.05 μA) reference node stabilizer in 16-bit SAR ADC front-end. Use Value: Sub-100 nA leakage avoids loading error in >10 MΩ divider arms, preserving measurement resolution and battery runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX884S-C51-Q | ±5 % tolerance (vs. ±2 %); 48–54 V range; higher rdif (100 Ω typ.) | Acceptable where cost sensitivity outweighs regulation accuracy; less suitable for precision references | Select when budget constraints dominate and ±5 % VZ margin is acceptable in final design |
| MMSZ5257B-7-F | SOD-123 package (2.7 mm × 1.6 mm); 500 mW Ptot; 110 Ω rdif; no AEC-Q101 qualification | Larger footprint limits use in miniaturized automotive modules; lacks automotive reliability validation | Choose only for non-automotive industrial applications requiring higher power but tolerating larger size |
Compared with BZX884S-C51-Q and MMSZ5257B-7-F, the BZX884S-B51-QYL uniquely combines AEC-Q101 qualification, ultra-compact DFN1006BD-2 packaging, and ±2 % tolerance - making it the sole option for space-constrained, safety-critical automotive voltage references demanding both precision and process reliability.
Availability
BZX884S-B51-QYL is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor biasing, telecom line clamping, and medical voltage monitoring requiring stable component supply with full traceability and lifecycle support.
Supply support for BZX884S-B51-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 product line, engineered specifically for precision voltage regulation and transient suppression in automotive and industrial environments where miniaturization and reliability are mandatory.
FAQ
What is the maximum reverse voltage the BZX884S-B51-QYL can withstand before breakdown?
The BZX884S-B51-QYL has a nominal Zener voltage of 51 V with ±2 % tolerance, meaning guaranteed breakdown occurs between 50.0 V and 52.0 V at IZ = 2 mA. Its absolute maximum reverse voltage is not specified separately - operation above 52.0 V risks exceeding power dissipation limits or thermal runaway unless current is strictly limited by external series resistance.
Does the BZX884S-B51-QYL require a heatsink in standard PCB mounting?
No heatsink is required. When mounted on a standard FR4 PCB with single-sided 70 μm copper, its thermal resistance is 340 K/W. At 365 mW dissipation and 25 °C ambient, junction temperature rises to approximately 148 °C - within the 150 °C maximum rating. Derating is needed above 25 °C ambient per the thermal curve in the datasheet.
How does the side-wettable flank feature improve manufacturability?
Side-wettable flanks allow solder to visibly wick up the vertical sidewalls of the DFN1006BD-2 package during reflow, enabling automated optical inspection (AOI) to verify solder joint quality without X-ray. This eliminates manual visual checks and reduces defect escape in high-volume automotive PCB assembly lines.
Can the BZX884S-B51-QYL be used in forward-bias applications?
Yes, but only as a general-purpose silicon diode: forward voltage is ≤0.9 V at 10 mA. However, it is not optimized for rectification - its low 200 mA peak forward current rating and lack of fast recovery specification make it unsuitable for switching or power rectifier roles. Its primary function remains reverse-bias Zener regulation.
BZX884S-B51-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):
- 51 V
- Tolerance:
- ±1.96%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 180 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 35.7 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006BD-2
BZX884S-B51-QYL FAQ
1.How can I place an order for BZX884S-B51-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884S-B51-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-B51-QYL reliable?
The price and inventory of BZX884S-B51-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-B51-QYL is usually 5 days.
3.What payment methods are accepted for BZX884S-B51-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884S-B51-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884S-B51-QYL?
BZX884S-B51-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884S-B51-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-B51-QYL?
For technical support, including BZX884S-B51-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884S-B51-QYL requirements.
6.How does Aetrix verify that BZX884S-B51-QYL is sourced from the original manufacturer or authorized distributors?
All BZX884S-B51-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-B51-QYL meets industry standards.
7.What is the process for return or replacement of BZX884S-B51-QYL?
All BZX884S-B51-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX884S-B51-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-B51-QYL part is unused and in its original packaging.
Return procedure for BZX884S-B51-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX884S-B51-QYL Tags
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MMBZ5240B-7-F
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