Nexperia USA Inc. BZX884S-B11-QYL
- Part No.:
- BZX884S-B11-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884S-B11-QYL.pdf
- Description:
- DIODE ZENER 11V 365MW DFN1006BD
- Quantity:
- Payment:

- Shipping:

Inventory:30,000
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Product details
Overview
BZX884S-B11-QYL from Nexperia is a 11 V ±2 % tolerance Zener diode in a leadless DFN1006BD-2 (SOD882BD) package, designed for precision voltage regulation and reference functions in space-constrained automotive and industrial circuits. It delivers 10.8–11.2 V nominal Zener voltage at 5 mA, 50 Ω typical differential resistance, and operates up to 150 °C junction temperature.
For engineers reviewing the BZX884S-B11-QYL datasheet, BZX884S-B11-QYL pinout, BZX884S-B11-QYL application, or BZX884S-B11-QYL equivalent, key selection criteria include its AEC-Q101 qualification, side-wettable flanks for automated optical inspection, 365 mW power dissipation on FR4, and tight ±2 % voltage tolerance at IZ = 5 mA.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified Zener voltage of 10.8–11.2 V at 5 mA test current and exhibits a positive temperature coefficient of +5.4 mV/K at that condition. Its low 50 Ω typical differential resistance ensures stable regulation under varying load currents.
The device uses a planar epitaxial process and is packaged in an ultra-small 1.0 mm × 0.6 mm × 0.47 mm DFN1006BD-2 case with side-wettable flanks-enabling reliable reflow soldering and AOI-compatible assembly in high-density automotive PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 10.8–11.2 V at IZ = 5 mA - defines precise regulation point for 12 V rail clamping or reference generation |
| Tolerance | ±2 % - enables tighter system-level voltage margin control vs. ±5 % variants |
| Differential Resistance rdiff | 50 Ω typ. at IZ = 5 mA - minimizes output voltage shift under load transients |
| Power Dissipation Ptot | 365 mW on FR4 (70 μm Cu) - supports continuous operation in compact thermal environments |
| Junction Temperature Tj | −55 to +150 °C - validated for under-hood automotive use per AEC-Q101 |
| Reverse Current IR | ≤ 0.1 μA at VR = 8.5 V - ensures low leakage in high-impedance bias networks |
| Forward Voltage VF | ≤ 0.9 V at IF = 10 mA - supports bidirectional protection or dual-use in clamp circuits |
Pinout & Package
Package: DFN1006BD-2 (SOD882BD), 1.0 mm × 0.6 mm × 0.47 mm body, side-wettable flanks, 0.65 mm pitch, 2-terminal surface-mount design. Cathode identified by marking bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-biased terminal during Zener operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints without X-ray, improving manufacturing yield |
| Ultra-small footprint | DFN1006BD-2 saves >60 % board area vs. SOD-323, critical for miniaturized ECUs and wearables |
| ±2 % voltage tolerance | Reduces need for post-production trimming in precision reference designs (e.g., ADC bias, LDO feedback) |
| 150 °C max junction temperature | Supports operation in high-ambient environments such as powertrain modules and LED driver heatsinks |
Applications
| Automotive Voltage Clamp | Industrial Sensor Reference |
|---|---|
|
Use Scenario: Clamping transient overvoltage on LIN bus lines in door module ECUs. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to limit line voltage to ≤11.2 V during load dump events. Use Value: Prevents damage to LIN transceivers rated for 12 V absolute max, leveraging 10.8–11.2 V regulation window and 365 mW surge handling. |
Use Scenario: Providing stable 11 V reference for analog front-end of pressure sensor in HVAC control unit. IC Role / Device Role / Timing Role: Precision shunt reference supplying bias current to op-amp input stage. Use Value: ±2 % tolerance and 50 Ω rdiff ensure reference drift < ±0.22 V across 0–10 mA load variation, meeting 0.5 % system accuracy target. |
| Portable Power Monitor | LED Driver Feedback |
|
Use Scenario: Monitoring battery voltage in medical wearable using microcontroller ADC with internal 2.5 V reference. IC Role / Device Role / Timing Role: Zener-based resistive divider scaling 3.0–4.2 V Li-ion range to 0–2.5 V ADC input. Use Value: Low 0.1 μA leakage at 8.5 V ensures negligible divider current error, preserving battery runtime in always-on monitoring mode. |
Use Scenario: Setting constant-current threshold in buck LED driver for automotive interior lighting. IC Role / Device Role / Timing Role: Shunt regulator defining feedback voltage at current-sense amplifier input. Use Value: +5.4 mV/K tempco matches typical LED forward-voltage drift, minimizing brightness variation over −40 to +125 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX884S-C11-Q | ±5 % tolerance (10.4–11.6 V), higher 10 Ω rdiff at IZ = 2 mA | Suitable for non-critical biasing where cost sensitivity outweighs precision | Select when ±5 % regulation window is acceptable and lower bill-of-materials cost is prioritized |
| MMSZ4689T1G | 11 V ±5 %, SOD-123 package (2.7 × 1.6 mm), 500 mW Ptot, no AEC-Q101 rating | Used in commercial-grade power supplies requiring higher power but no automotive qualification | Choose only for non-automotive designs needing larger thermal mass and legacy footprint compatibility |
Compared with BZX884S-C11-Q and MMSZ4689T1G, the BZX884S-B11-QYL uniquely combines AEC-Q101 qualification, ±2 % tolerance, and ultra-miniature DFN1006BD-2 packaging-making it the sole option for high-reliability, space-constrained automotive voltage references.
Availability
BZX884S-B11-QYL is available at Aetrix Electronics and suitable for automotive ECU voltage clamping, industrial sensor reference circuits, portable battery monitoring, and LED driver feedback loops requiring stable component supply with guaranteed long-term availability.
Supply support for BZX884S-B11-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 delivering high-performance, reliable discrete, logic, and MOSFET devices optimized for efficiency and miniaturization in automotive, industrial, and mobile applications.
The BZX884S-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for precision voltage regulation in space- and reliability-critical automotive subsystems.
FAQ
What is the maximum reverse current at 8.5 V for BZX884S-B11-QYL?
The maximum reverse current is 0.1 μA at VR = 8.5 V and Tj = 25 °C, as specified in Table 8 of the datasheet. This low leakage ensures minimal error in high-impedance reference divider networks and preserves battery life in always-on monitoring applications.
Is BZX884S-B11-QYL compatible with standard reflow profiles for DFN packages?
Yes-Nexperia specifies reflow soldering as the only recommended method, with footprint dimensions published in Figure 11. The side-wettable flanks enable full solder joint inspection using standard AOI systems without requiring X-ray verification.
How does the temperature coefficient affect regulation stability over automotive temperature ranges?
At IZ = 5 mA, the BZX884S-B11-QYL exhibits +5.4 mV/K temperature coefficient. Over −40 to +125 °C, this results in a total VZ shift of approximately ±0.89 V, which is fully characterized and accounted for in automotive reference designs requiring ±1 % total accuracy.
Can BZX884S-B11-QYL be used in bidirectional ESD protection configurations?
No-it is a unidirectional Zener diode optimized for reverse-bias regulation. For bidirectional ESD protection, Nexperia recommends dedicated TVS diodes like PESD5V0S1BA; the BZX884S-B11-QYL lacks symmetric clamping characteristics and specified ESD robustness ratings.
BZX884S-B11-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):
- 11 V
- Tolerance:
- ±1.82%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 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-B11-QYL FAQ
1.How can I place an order for BZX884S-B11-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884S-B11-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-B11-QYL reliable?
The price and inventory of BZX884S-B11-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-B11-QYL is usually 5 days.
3.What payment methods are accepted for BZX884S-B11-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884S-B11-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884S-B11-QYL?
BZX884S-B11-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884S-B11-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-B11-QYL?
For technical support, including BZX884S-B11-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884S-B11-QYL requirements.
6.How does Aetrix verify that BZX884S-B11-QYL is sourced from the original manufacturer or authorized distributors?
All BZX884S-B11-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-B11-QYL meets industry standards.
7.What is the process for return or replacement of BZX884S-B11-QYL?
All BZX884S-B11-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX884S-B11-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-B11-QYL part is unused and in its original packaging.
Return procedure for BZX884S-B11-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX884S-B11-QYL Tags

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MMBZ5240B-7-F
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