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Nexperia USA Inc. BZX884S-B43-QYL
- Part No.:
- BZX884S-B43-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884S-B43-QYL.pdf
- Description:
- DIODE ZENER 43V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:976
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Product details
Overview
BZX884S-B43-QYL from Nexperia is a Zener voltage regulator diode in the BZX884S-Q series, designed for precision voltage reference and regulation in compact automotive and industrial circuits. It provides a nominal 43 V Zener voltage with ±2 % tolerance, 85 Ω typical differential resistance at 2 mA, and operates up to 150 °C junction temperature in the ultra-small DFN1006BD-2 (SOD882BD) package.
For engineers reviewing the BZX884S-B43-QYL datasheet, BZX884S-B43-QYL pinout, BZX884S-B43-QYL application, or BZX884S-B43-QYL equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (340 K/W), reverse current limits (≤0.05 μA at 34.4 V), and side-wettable flank packaging details critical for automotive PCB assembly and reliability validation.
Technical Context
This Zener diode functions as a two-terminal shunt voltage reference, maintaining stable output voltage across variable load currents by operating in reverse breakdown. Its 43 V nominal Zener voltage is specified at 2 mA test current, with a temperature coefficient of +45 mV/K - indicating positive drift with rising temperature, requiring thermal compensation in high-precision analog rails.
The device uses silicon planar epitaxial construction with side-wettable flanks for automated optical solder-joint inspection. It is qualified per AEC-Q101 Rev. D for automotive use and rated for 365 mW total power dissipation on FR4 PCB with 70 μm copper, limiting maximum continuous Zener current to ~8.5 mA at ambient temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 42.1 V to 43.9 V at IZ = 2 mA - defines regulation setpoint with ±2 % tolerance for stable reference generation |
| Differential Resistance (rdif) | 85 Ω typical at IZ = 2 mA - determines output impedance and load regulation error under current variation |
| Temperature Coefficient (SZ) | +45 mV/K at IZ = 2 mA - quantifies voltage drift per degree Celsius, critical for thermal stability in engine control units |
| Reverse Current (IR) | ≤0.05 μA at VR = 34.4 V - ensures minimal leakage below knee voltage, preserving low-power standby integrity |
| Total Power Dissipation (Ptot) | 365 mW at Tamb = 25 °C on standard FR4 - sets maximum continuous Zener current limit (~8.5 mA) for thermal design |
| Junction Temperature (Tj) | −55 °C to +150 °C - enables operation in under-hood automotive environments and industrial motor drives |
| Thermal Resistance (Rth(j-a)) | 340 K/W - determines temperature rise above ambient per watt dissipated; guides heatsinking and layout decisions |
Pinout & Package
Package: DFN1006BD-2 (SOD882BD), leadless ultra-small plastic package measuring 1.0 mm × 0.6 mm × 0.47 mm with side-wettable flanks for automated optical inspection. Cathode identified by marking bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode (A) | Connected to circuit ground or lower-potential rail; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Qualified for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Side-wettable flanks (SWF) | Enables automated X-ray and AOI inspection of solder joints without requiring bottom-side access |
| ±2 % Zener voltage tolerance | Supports tight regulation requirements in feedback loops for DC-DC converters and voltage monitors |
| Ultra-small footprint (1.0 mm × 0.6 mm) | Reduces PCB area by >50 % vs. SOD-323, enabling high-density routing in space-constrained modules |
| 150 °C maximum junction temperature | Permits direct placement near heat sources such as power MOSFETs or motor drivers without derating |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Analog Input Module |
|---|---|
Use Scenario: Providing stable 43 V reference for knock sensor signal conditioning and ADC biasing in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Shunt voltage reference regulating supply to op-amp front-end stages and protecting against transients on 12 V/24 V battery rails. Use Value: Maintains <±0.86 V accuracy over −40 °C to +125 °C ambient, ensuring consistent sensor gain calibration across vehicle lifetime. |
Use Scenario: Acting as overvoltage clamp and precision reference in 0–10 V analog input protection circuitry for programmable logic controllers. IC Role / Device Role / Timing Role: Zener clamping element in input stage surge protection network, limiting transient excursions to safe levels before signal conditioning ICs. Use Value: Limits voltage to ≤43.9 V during 1 kV EFT bursts while drawing <100 nA leakage at 30 V, preserving measurement accuracy. |
| Telecom Power Supply Monitoring | Medical Infusion Pump Battery Management |
Use Scenario: Monitoring 48 V telecom rectifier output via resistive divider into microcontroller ADC, using Zener as reference for fault detection threshold. IC Role / Device Role / Timing Role: Precision voltage reference for comparator-based undervoltage/overvoltage detection circuit feeding system supervisor IC. Use Value: Enables detection of ±1.5 V deviations from nominal 48 V rail with <0.5 % hysteresis, meeting GR-1089-CORE immunity requirements. |
Use Scenario: Regulating auxiliary 5 V rail derived from 12 V Li-ion battery pack in portable infusion pumps with strict safety isolation. IC Role / Device Role / Timing Role: Low-leakage shunt regulator stabilizing isolated DC-DC feedback divider network in reinforced insulation barrier. Use Value: Delivers <0.05 μA reverse leakage at 34.4 V, minimizing quiescent current drain and extending battery runtime between charges. |
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-C43-Q | ±5 % tolerance (vs. ±2 %); higher max reverse current (0.05 μA vs. 0.05 μA same); identical package and thermal specs | Suitable for non-critical biasing where cost sensitivity outweighs regulation precision | Select when budget constraints dominate and ±5 % voltage variation is acceptable in feedback networks |
| MMSZ43-Q | SOD-123 package (2.7 mm × 1.4 mm); 400 mW Ptot; ±5 % tolerance; no AEC-Q101 qualification | Larger footprint, lower thermal performance (Rth(j-a) ≈ 400 K/W), not automotive-qualified | Choose only for non-automotive prototypes or legacy designs where board real estate is not constrained |
Compared with BZX884S-C43-Q, the BZX884S-B43-QYL offers tighter voltage control essential for closed-loop regulation, while MMSZ43-Q trades miniaturization and qualification for higher power handling and relaxed tolerance - making the BZX884S-B43-QYL optimal for space-limited, safety-critical automotive voltage references.
Availability
BZX884S-B43-QYL is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC analog input modules, telecom power monitoring systems, and medical infusion pump battery management requiring stable component supply with full traceability and AEC-Q101 compliance.
Supply support for BZX884S-B43-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 automotive-grade Zener diode product line, engineered specifically for precision voltage reference and overvoltage protection in harsh-environment electronic control modules.
FAQ
What is the maximum continuous Zener current for BZX884S-B43-QYL at 85 °C ambient?
At 85 °C ambient temperature, derating applies: Ptot reduces linearly from 365 mW at 25 °C to zero at 150 °C. At 85 °C, allowable power is 242 mW, supporting ~5.6 mA continuous Zener current (242 mW ÷ 43 V). This assumes standard FR4 PCB mounting with single-sided 70 μm copper.
Does BZX884S-B43-QYL support reflow soldering only, or can it be hand-soldered?
Reflow soldering is the only recommended method per Nexperia's documentation. Hand-soldering risks thermal damage due to the DFN1006BD-2 package's small size and thermal mass limitations. Peak reflow temperature must not exceed 260 °C for ≤30 seconds, with ramp rates compliant with J-STD-020.
How does the +45 mV/K temperature coefficient affect long-term voltage stability in an automotive environment?
A +45 mV/K coefficient means the Zener voltage increases by ~4.5 V over a 100 °C range (e.g., −40 °C to +60 °C ambient). In closed-loop systems, this drift must be compensated in firmware or hardware; for open-loop references, it introduces ±2.25 V uncertainty, necessitating margin in downstream circuit design.
Is the marking code '3F' on BZX884S-B43-QYL sufficient for full traceability to the BZX884S-Q series datasheet?
Yes - '3F' is the official marking code for BZX884S-B43-Q per Table 4 of the datasheet. All electrical, thermal, and mechanical specifications in the BZX884S-Q_SER Rev. 2 document apply directly. No additional variant-specific characterization is required for qualification or design-in.
BZX884S-B43-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):
- 43 V
- Tolerance:
- ±2.09%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 150 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 30.1 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-B43-QYL FAQ
1.How can I place an order for BZX884S-B43-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884S-B43-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-B43-QYL reliable?
The price and inventory of BZX884S-B43-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-B43-QYL is usually 5 days.
3.What payment methods are accepted for BZX884S-B43-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884S-B43-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884S-B43-QYL?
BZX884S-B43-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884S-B43-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-B43-QYL?
For technical support, including BZX884S-B43-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884S-B43-QYL requirements.
6.How does Aetrix verify that BZX884S-B43-QYL is sourced from the original manufacturer or authorized distributors?
All BZX884S-B43-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-B43-QYL meets industry standards.
7.What is the process for return or replacement of BZX884S-B43-QYL?
All BZX884S-B43-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX884S-B43-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-B43-QYL part is unused and in its original packaging.
Return procedure for BZX884S-B43-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX884S-B43-QYL Tags
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