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Nexperia USA Inc. BZX884S-B47-QYL
- Part No.:
- BZX884S-B47-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884S-B47-QYL.pdf
- Description:
- DIODE ZENER 47V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:9,735
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Product details
Overview
BZX884S-B47-QYL from Nexperia is a Zener voltage regulator diode in the BZX884S-Q series, designed for precision voltage reference and overvoltage protection in compact automotive and industrial circuits. It delivers a nominal 47 V Zener voltage with ±2 % tolerance, 50 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-B47-QYL datasheet, BZX884S-B47-QYL pinout, BZX884S-B47-QYL application, or BZX884S-B47-QYL equivalent, key selection criteria include its AEC-Q101 qualification, side-wettable flanks for automated optical inspection, 365 mW power dissipation on FR4, and low 40 pF capacitance at 0 V - critical for stable regulation in high-frequency power rails and ESD-sensitive analog front-ends.
Technical Context
This Zener diode functions as a two-terminal shunt voltage regulator, maintaining a stable reverse-biased breakdown voltage across its cathode-anode terminals under controlled current conditions. Its operation relies on controlled avalanche breakdown, with temperature coefficient of +32.9 mV/K at 2 mA and 47 V nominal working voltage.
The device is characterized at Tj = 25 °C with IZ = 2 mA for VZ, Rdif, and SZ; reverse current remains ≤0.05 μA at VR = 37.6 V, and forward voltage is ≤0.9 V at IF = 10 mA. Thermal resistance from junction to ambient is 340 K/W on standard FR4 PCB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 46.1 V to 47.9 V at IZ = 2 mA - ensures tight 47 V regulation for reference and clamping in 48 V automotive subsystems. |
| Differential Resistance (rdif) | 85 Ω typ. at IZ = 2 mA - determines output impedance and load regulation stability in feedback paths. |
| Temperature Coefficient (SZ) | +32.9 mV/K at IZ = 2 mA - quantifies voltage drift per degree Celsius, critical for thermal compensation design. |
| Reverse Current (IR) | ≤0.05 μA at VR = 37.6 V - defines leakage-induced error in high-impedance bias networks. |
| Power Dissipation (Ptot) | 365 mW on FR4 PCB - sets maximum continuous power handling without derating in standard layout. |
| Capacitance (Cd) | 40 pF at f = 1 MHz, VR = 0 V - impacts high-frequency noise filtering and signal integrity in RF-adjacent circuits. |
| Junction Temperature (Tj) | −55 °C to +150 °C - enables operation in under-hood automotive environments and industrial control enclosures. |
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 reliable solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (marked side) | Cathode (K) | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs. |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes current path during regulation or clamping. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness - suitable for engine control units and ADAS power domains. |
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints on bottom-terminated terminals - improves yield in high-volume SMT assembly. |
| ±2 % voltage tolerance | Reduces need for post-production trimming in precision reference designs, lowering BOM count and calibration cost. |
| Ultra-small footprint | DFN1006BD-2 saves >70 % board area vs. traditional SOD-123 - critical for space-constrained modules like battery management ICs and sensor nodes. |
| Low 40 pF capacitance | Minimizes signal distortion and phase shift in high-speed analog monitoring paths, such as CAN transceiver bias networks. |
Applications
| Automotive Power Rail Clamping | Industrial Sensor Reference |
|---|---|
Use Scenario: Protecting 48 V DC-DC converter outputs against load-dump transients in mild-hybrid vehicles. IC Role / Device Role / Timing Role: Shunt clamp absorbing surge energy above 47 V while holding downstream regulators within safe input range. Use Value: Prevents latch-up in PMICs by limiting peak voltage to 47.9 V with <0.05 μA leakage below 37.6 V. |
Use Scenario: Providing stable excitation voltage for RTD or strain gauge bridges in factory automation PLCs. IC Role / Device Role / Timing Role: Precision voltage reference source with ±2 % tolerance and +32.9 mV/K TC, used in ratiometric measurement circuits. Use Value: Enables <±0.5 % full-scale accuracy over −40 °C to +125 °C ambient when paired with TC-compensated op-amps. |
| USB-C PD Overvoltage Protection | IoT Node Battery Monitoring |
Use Scenario: Safeguarding USB-C port controllers during 20 V/3 A PPS negotiation against accidental overvoltage faults. IC Role / Device Role / Timing Role: Fast-response crowbar element triggered at 47 V, diverting fault current before controller damage. Use Value: Achieves sub-100 ns response with 365 mW dissipation margin, compatible with 0.65 mm pitch DFN reflow profiles. |
Use Scenario: Monitoring Li-ion pack voltage in smart meters using resistive divider with low-leakage bias. IC Role / Device Role / Timing Role: High-impedance voltage clamp stabilizing divider node against ESD and supply ripple. Use Value: 40 pF capacitance avoids signal attenuation at 1 kHz sampling rates; 150 °C Tj rating supports sealed enclosure operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX884S-C47-Q | ±5 % tolerance (44 V–50 V range) vs. ±2 %; higher 50 μA max IR at VR = 37.6 V | Acceptable where cost sensitivity outweighs precision; less suitable for ratiometric sensing | Select for non-critical clamping where tighter tolerance is unnecessary and unit cost is prioritized. |
| MMSZ47ET1G | SOD-123 package (2.7 mm × 1.6 mm); 47 V ±5 %; 500 mW Ptot; no AEC-Q101 qualification | Higher power handling but larger footprint; not validated for automotive temperature cycling | Choose only for industrial prototypes requiring higher dissipation and where AOI compatibility is not required. |
Compared with BZX884S-C47-Q and MMSZ47ET1G, the BZX884S-B47-QYL uniquely combines AEC-Q101 compliance, ±2 % tolerance, side-wettable flanks, and 1.0 mm × 0.6 mm footprint - making it the sole option for production automotive modules needing both precision and automated assembly assurance.
Availability
BZX884S-B47-QYL is available at Aetrix Electronics and suitable for automotive power rail clamping, industrial sensor reference circuits, USB-C PD overvoltage protection, and IoT node battery monitoring requiring stable component supply across extended temperature ranges and high-reliability manufacturing.
Supply support for BZX884S-B47-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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
The BZX884S-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for space-constrained, thermally demanding automotive subsystems requiring precise voltage regulation and robust transient immunity.
FAQ
What is the maximum continuous reverse current the BZX884S-B47-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 47 V, continuous operation must stay below 7.8 mA (365 mW ÷ 47 V) to avoid exceeding Ptot on standard FR4. Derating is required above 25 °C ambient per Rth(j-a) = 340 K/W.
How does the side-wettable flank design improve manufacturing yield?
Side-wettable flanks allow automated optical inspection (AOI) systems to detect solder fillet formation on the lateral edges of the DFN1006BD-2 package. This eliminates reliance on X-ray for void detection, reducing test time and increasing confidence in solder joint integrity - especially critical for automotive safety-related assemblies where zero-defect soldering is mandated.
Can the BZX884S-B47-QYL be used in series to achieve higher clamping voltages?
No - Zener diodes in series exhibit mismatched temperature coefficients and breakdown thresholds, leading to uneven voltage distribution and potential thermal runaway. The BZX884S-B47-QYL is specified for single-device operation; for higher voltages, use purpose-built multi-stage TVS arrays or stacked Zener modules with matched characteristics and thermal coupling.
Is the 40 pF capacitance measured at zero bias applicable to AC-coupled signal paths?
Yes - the 40 pF value is measured at VR = 0 V and f = 1 MHz (Table 9), representing the diode's junction capacitance in unbiased or lightly reverse-biased states. In AC-coupled applications like bias tee networks, this capacitance forms part of the high-pass filter cutoff; designers must account for its variation with applied reverse voltage, which decreases as VR increases toward VZ.
BZX884S-B47-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):
- 47 V
- Tolerance:
- ±1.91%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 170 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 32.9 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-B47-QYL FAQ
1.How can I place an order for BZX884S-B47-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884S-B47-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-B47-QYL reliable?
The price and inventory of BZX884S-B47-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-B47-QYL is usually 5 days.
3.What payment methods are accepted for BZX884S-B47-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884S-B47-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884S-B47-QYL?
BZX884S-B47-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884S-B47-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-B47-QYL?
For technical support, including BZX884S-B47-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884S-B47-QYL requirements.
6.How does Aetrix verify that BZX884S-B47-QYL is sourced from the original manufacturer or authorized distributors?
All BZX884S-B47-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-B47-QYL meets industry standards.
7.What is the process for return or replacement of BZX884S-B47-QYL?
All BZX884S-B47-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX884S-B47-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-B47-QYL part is unused and in its original packaging.
Return procedure for BZX884S-B47-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX884S-B47-QYL Tags
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MMBZ5240B-7-F
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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