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Nexperia USA Inc. BZX884S-B39-QYL
- Part No.:
- BZX884S-B39-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884S-B39-QYL.pdf
- Description:
- DIODE ZENER 39V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:9,974
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Product details
Overview
BZX884S-B39-QYL from Nexperia is a ±2 % tolerance Zener diode in a DFN1006BD-2 (SOD882BD) leadless SMD package, designed for precision voltage regulation at 39 V nominal breakdown voltage with 80 Ω typical differential resistance at IZ = 2 mA and −0.05 μA reverse current at VR = 30 V. It supports automotive-grade power rail stabilization in engine control units and ADAS sensor biasing circuits.
For engineers reviewing the BZX884S-B39-QYL datasheet, BZX884S-B39-QYL pinout, BZX884S-B39-QYL application, or BZX884S-B39-QYL equivalent, key selection criteria include its AEC-Q101 qualification, side-wettable flanks for automated optical inspection, 365 mW power dissipation on FR4, and 39 V ±2 % Zener voltage tolerance under 2 mA test current.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain stable reference voltage across load variations, with temperature coefficient of +40 mV/K at IZ = 2 mA enabling predictable drift compensation in thermal-stressed environments. Its low 45 pF capacitance at 1 MHz and 0 V reverse bias minimizes signal coupling in high-frequency feedback paths.
The device uses planar epitaxial construction with silicon junction technology, achieving 150 °C maximum junction temperature and −55 °C to +150 °C ambient operating range. Its 0.65 mm pitch, 1.0 mm × 0.6 mm footprint supports ultra-dense PCB layouts while maintaining solder joint reliability via side-wettable flanks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 38.2 V to 39.8 V at IZ = 2 mA - defines tight regulation window for 39 V rail clamping |
| Tolerance | ±2 % - enables precise voltage reference without post-production trimming |
| Differential Resistance (rdif) | 80 Ω typical at IZ = 2 mA - determines output impedance and load regulation error |
| Power Dissipation (Ptot) | 365 mW on FR4 PCB - sets maximum continuous power handling under standard layout |
| Reverse Current (IR) | ≤0.05 μA at VR = 30 V - ensures minimal leakage in standby or low-power modes |
| Junction Temperature (Tj) | −55 °C to +150 °C - supports operation in under-hood automotive environments |
| Package | DFN1006BD-2 (SOD882BD) - 1.0 mm × 0.6 mm × 0.47 mm leadless body with side-wettable flanks |
Pinout & Package
DFN1006BD-2 (SOD882BD) is a 2-terminal leadless plastic package with side-wettable flanks, 0.65 mm pitch, and marking bar indicating cathode. Dimensions: 1.0 mm × 0.6 mm × 0.47 mm body height; solderable lead ends protrude ≤0.02 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; polarity marker aligns with PCB silkscreen bar |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reverse-biased junction with cathode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control and body electronics |
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints without X-ray |
| Ultra-small footprint | 1.0 mm × 0.6 mm area saves >60 % board space vs. SOD-123 packages |
| Two tolerance options | ±2 % (B-series) and ~±5 % (C-series) support cost-performance trade-offs |
| Wide voltage range | 2.4 V to 75 V coverage across E24 series simplifies BOM consolidation |
Applications
| Engine Control Unit (ECU) Power Monitoring | ADAS Camera Bias Supply |
|---|---|
Use Scenario: Monitoring 12 V battery rail integrity during cold cranking and load dump events. IC Role / Device Role / Timing Role: Zener clamp protecting microcontroller supply pins from overvoltage transients. Use Value: 39 V breakdown prevents damage to 3.3 V/5 V logic rails while surviving 40 V load dump spikes per ISO 7637-2. |
Use Scenario: Providing stable bias voltage to CMOS image sensor analog front-end. IC Role / Device Role / Timing Role: Precision reference for ADC reference buffer and pixel array biasing. Use Value: ±2 % tolerance ensures <0.8 % gain error in 12-bit imaging chain; 45 pF capacitance avoids high-frequency noise injection. |
| Automotive Infotainment USB Port Protection | Electric Power Steering (EPS) Sensor Signal Conditioning |
Use Scenario: Clamping induced transients on USB VBUS line during hot-plug events. IC Role / Device Role / Timing Role: Secondary overvoltage protection stage after TVS diode. Use Value: Low 80 Ω dynamic impedance limits clamping overshoot to <42 V during 1 A surge, preserving USB PHY integrity. |
Use Scenario: Stabilizing excitation voltage for torque sensor Wheatstone bridge. IC Role / Device Role / Timing Role: Low-noise voltage reference for bridge amplifier input stage. Use Value: +40 mV/K temperature coefficient allows predictable drift compensation in 100 °C EPS housing; <0.05 μA leakage avoids bridge imbalance errors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX884S-C39-Q | ±5 % tolerance (37 V–41 V), higher 130 Ω rdif at IZ = 2 mA | Suitable for non-critical biasing where cost sensitivity outweighs precision | Select when ±5 % regulation accuracy suffices and leakage <0.1 μA is acceptable |
| MMSZ4704T1G | 39 V ±5 %, SOD-123 package (2.7 mm × 1.4 mm), 500 mW Ptot | Higher power handling but 4.5× larger footprint; no side-wettable flanks | Choose for legacy designs requiring through-hole-compatible reflow or >365 mW dissipation |
Compared with BZX884S-B39-QYL, the C39-Q offers lower cost at reduced precision and higher dynamic impedance, while MMSZ4704T1G trades miniaturization for higher power and legacy compatibility-making the B39-QYL optimal for space-constrained AEC-Q101 automotive systems demanding ±2 % stability.
Availability
BZX884S-B39-QYL is available at Aetrix Electronics and suitable for automotive ECU power monitoring, ADAS camera biasing, and electric power steering sensor conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZX884S-B39-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 leading semiconductor manufacturer specializing in high-performance, reliable discrete and logic devices, with core expertise 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 regulation in harsh-environment electronic control modules where AEC-Q101 compliance and miniaturization are critical.
FAQ
What is the maximum reverse voltage before breakdown for BZX884S-B39-QYL?
The nominal Zener voltage is 39 V with a guaranteed range of 38.2 V to 39.8 V at IZ = 2 mA. Breakdown occurs within this band; operation below 30 V reverse bias yields ≤0.05 μA leakage, and the absolute maximum non-destructive reverse voltage is not specified beyond the 39 V regulation band.
Does BZX884S-B39-QYL require a series current-limiting resistor in all applications?
Yes-a series resistor is mandatory to limit Zener current within the 365 mW power rating and prevent thermal runaway. For example, at 45 V input and 39 V regulation, a minimum 16.5 Ω resistor limits IZ to 364 mA, but practical designs use higher values to stay within safe derating margins at elevated temperatures.
How does the side-wettable flank design impact PCB assembly yield?
Side-wettable flanks enable automated optical inspection (AOI) of solder fillet formation on the package edges, improving defect detection rate by >95 % compared to standard DFN packages. This eliminates reliance on X-ray for process validation and reduces rework in high-volume automotive PCB assembly.
Can BZX884S-B39-QYL be used in place of a 39 V Zener in non-automotive consumer applications?
Yes-it functions identically in non-automotive contexts, but its AEC-Q101 qualification, tighter ±2 % tolerance, and side-wettable flanks provide no functional benefit outside automotive or industrial environments with stringent reliability requirements. Cost and footprint advantages may still justify use in space-constrained consumer designs.
BZX884S-B39-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):
- 39 V
- Tolerance:
- ±2.05%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 130 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 27.3 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-B39-QYL FAQ
1.How can I place an order for BZX884S-B39-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884S-B39-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-B39-QYL reliable?
The price and inventory of BZX884S-B39-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-B39-QYL is usually 5 days.
3.What payment methods are accepted for BZX884S-B39-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884S-B39-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884S-B39-QYL?
BZX884S-B39-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884S-B39-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-B39-QYL?
For technical support, including BZX884S-B39-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884S-B39-QYL requirements.
6.How does Aetrix verify that BZX884S-B39-QYL is sourced from the original manufacturer or authorized distributors?
All BZX884S-B39-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-B39-QYL meets industry standards.
7.What is the process for return or replacement of BZX884S-B39-QYL?
All BZX884S-B39-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX884S-B39-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-B39-QYL part is unused and in its original packaging.
Return procedure for BZX884S-B39-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX884S-B39-QYL Tags
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