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Nexperia USA Inc. BZX884S-B9V1-QYL
- Part No.:
- BZX884S-B9V1-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884S-B9V1-QYL.pdf
- Description:
- DIODE ZENER 9.1V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:9,470
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Product details
Overview
BZX884S-B9V1-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 9.1 V breakdown voltage with ±2 % tolerance, 365 mW power dissipation on FR4 PCB, and operates across −55 °C to +150 °C ambient range.
For engineers reviewing the BZX884S-B9V1-QYL datasheet, BZX884S-B9V1-QYL pinout, BZX884S-B9V1-QYL application, or BZX884S-B9V1-QYL equivalent, key selection criteria include its AEC-Q101 qualification, side-wettable DFN1006BD-2 package for automated optical inspection, low 0.5 μA reverse current at 7.2 V, and 6 Ω typical differential resistance at 5 mA test current.
Technical Context
This Zener diode operates in reverse-bias breakdown mode to maintain stable voltage regulation under varying load and temperature conditions. Its 9.1 V nominal Zener voltage is specified at IZ = 5 mA, with a temperature coefficient of +3.8 mV/K and differential resistance of 40 Ω (max) at that current.
The device uses silicon planar epitaxial construction and is qualified per AEC-Q101 for automotive applications. Thermal resistance from junction-to-ambient is 340 K/W on standard FR4 PCB, enabling reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.1 V nominal at IZ = 5 mA; ±2 % tolerance ensures tight regulation in feedback loops |
| Differential Resistance (rdif) | 40 Ω max at IZ = 5 mA; determines output impedance and regulation sensitivity to current changes |
| Reverse Current (IR) | 0.5 μA max at VR = 7.2 V; defines leakage level below breakdown, critical for low-power standby circuits |
| Power Dissipation (Ptot) | 365 mW on FR4 PCB with 70 μm copper; sets maximum continuous DC or pulsed power handling capability |
| Operating Temperature | −55 °C to +150 °C ambient; supports under-hood automotive and industrial environments without derating |
| Thermal Resistance (Rth(j-a)) | 340 K/W on standard FR4 layout; enables thermal design margin calculation for PCB copper area and airflow |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA; relevant for polarity-checking and forward-conduction protection paths |
Pinout & Package
The BZX884S-B9V1-QYL is housed in a leadless DFN1006BD-2 (SOD882BD) package measuring 1.0 mm × 0.6 mm × 0.47 mm, featuring side-wettable flanks for automated solder-joint inspection. The cathode is marked by a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-bias anode reference point for voltage clamping |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes Zener conduction path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTOL, TC, and ESD testing per stress requirements |
| Side-wettable flanks (SWF) | Enables automated optical inspection (AOI) of solder joints without X-ray, improving manufacturing yield |
| ±2 % Zener voltage tolerance | Supports tighter feedback loop accuracy in LDO pre-regulators and ADC reference buffers |
| Ultra-small DFN1006BD-2 footprint | Reduces board space by >50 % vs. SOD-323; compatible with high-density routing in ADAS and infotainment modules |
| 150 °C maximum junction temperature | Allows operation in engine control units (ECUs) and powertrain modules without external heatsinking |
Applications
| Automotive ECU Power Rail Clamp | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Clamping transient spikes on 12 V supply rails in engine control units exposed to load-dump events. IC Role / Device Role / Timing Role: Zener diode acting as shunt overvoltage protector, diverting surge current to ground before downstream regulators fail. Use Value: Withstands 365 mW peak dissipation and operates reliably at 150 °C ambient, meeting ISO 7637-2 Pulse 5a requirements. |
Use Scenario: Providing stable 9.1 V reference for analog front-end amplifiers in factory-floor pressure transmitters. IC Role / Device Role / Timing Role: Precision voltage reference source for op-amp biasing and ADC reference scaling. Use Value: ±2 % tolerance and +3.8 mV/K temperature coefficient enable <1 % total error over −40 °C to +85 °C operating range. |
| USB-C Port Overvoltage Protection | Smart Meter Voltage Supervisor |
Use Scenario: Secondary overvoltage clamp on VBUS line after primary TVS, limiting residual overshoot to safe levels. IC Role / Device Role / Timing Role: Low-leakage (0.5 μA @ 7.2 V) Zener regulating post-TVSP voltage to protect USB-PD controller ICs. Use Value: Ultra-low IR minimizes quiescent current draw in always-on USB-C sink applications, preserving battery life. |
Use Scenario: Monitoring main supply voltage in utility smart meters to trigger brownout reset or low-voltage alerts. IC Role / Device Role / Timing Role: Threshold detector using comparator input biased by 9.1 V Zener reference against scaled supply. Use Value: Stable 9.1 V reference with 40 Ω rdif ensures consistent trip point across temperature and aging, supporting 10-year field deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX884B9V1 | Same 9.1 V, ±2 %, but non-AEC-Q101; no side-wettable flanks; SOD-323 package (1.7 mm × 1.3 mm) | Lacks automotive qualification and AOI support; larger footprint increases board area by 2.8× | Select only for cost-sensitive consumer designs where AEC-Q101 and miniaturization are not required. |
| MMSZ4684T1G | 9.1 V, ±5 % tolerance; 500 mW Ptot; SOD-123 package; no AEC-Q101 certification | Higher power rating but looser tolerance and no automotive qualification; unsuitable for safety-critical ECU functions | Use when higher pulse power handling is needed and ±5 % regulation accuracy is acceptable in non-automotive systems. |
Compared with BZX884S-B9V1-QYL, BZX884B9V1 offers identical electrical specs but lacks automotive qualification and manufacturability features, while MMSZ4684T1G trades tolerance and qualification for higher power - making the QYL variant optimal for space-constrained, AEC-Q101–compliant designs requiring tight regulation.
Availability
BZX884S-B9V1-QYL is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, USB-C power delivery protection, and smart meter voltage supervision requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZX884S-B9V1-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 robust voltage regulation and overvoltage protection in harsh-environment electronic control units and sensor interfaces.
FAQ
What is the marking code for BZX884S-B9V1-QYL?
The marking code for BZX884S-B9V1-QYL is '2P', laser-etched on the top surface of the DFN1006BD-2 package. The bar adjacent to the marking denotes the cathode terminal (Pin 1), and the device is oriented with Pin 1 in the top-left corner when viewed from above with the marking upright.
Does BZX884S-B9V1-QYL support reflow soldering only?
Yes - Nexperia specifies reflow soldering as the sole recommended process for BZX884S-B9V1-QYL. The DFN1006BD-2 package requires precise thermal profiling per J-STD-020, with peak temperatures ≤260 °C and time above liquidus of 60–90 seconds. Wave or hand soldering is not supported due to thermal mass and side-wettable flank geometry.
How does the ±2 % tolerance affect regulation accuracy in a 5 mA bias circuit?
At IZ = 5 mA, the ±2 % tolerance means the actual Zener voltage falls between 8.92 V and 9.28 V. Combined with a typical differential resistance of 40 Ω, a ±1 mA current variation causes ±40 mV deviation - resulting in total regulation uncertainty of ±70 mV (±0.77 %) around nominal, suitable for mid-precision references.
Can BZX884S-B9V1-QYL replace BZX84-C9V1 in existing designs?
No - BZX84-C9V1 has ±5 % tolerance and different thermal characteristics (Rth(j-a) ≈ 500 K/W). Substituting it with BZX884S-B9V1-QYL introduces tighter voltage control but requires PCB footprint redesign (SOD-323 → DFN1006BD-2) and validation of solder joint reliability under AEC-Q101 stress profiles.
BZX884S-B9V1-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):
- 9.1 V
- Tolerance:
- ±1.98%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 6 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-B9V1-QYL FAQ
1.How can I place an order for BZX884S-B9V1-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884S-B9V1-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-B9V1-QYL reliable?
The price and inventory of BZX884S-B9V1-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-B9V1-QYL is usually 5 days.
3.What payment methods are accepted for BZX884S-B9V1-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884S-B9V1-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884S-B9V1-QYL?
BZX884S-B9V1-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884S-B9V1-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-B9V1-QYL?
For technical support, including BZX884S-B9V1-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884S-B9V1-QYL requirements.
6.How does Aetrix verify that BZX884S-B9V1-QYL is sourced from the original manufacturer or authorized distributors?
All BZX884S-B9V1-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-B9V1-QYL meets industry standards.
7.What is the process for return or replacement of BZX884S-B9V1-QYL?
All BZX884S-B9V1-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX884S-B9V1-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-B9V1-QYL part is unused and in its original packaging.
Return procedure for BZX884S-B9V1-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX884S-B9V1-QYL Tags
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