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Nexperia USA Inc. BZX884S-B3V9-QYL
- Part No.:
- BZX884S-B3V9-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884S-B3V9-QYL.pdf
- Description:
- DIODE ZENER 3.9V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:8,521
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Product details
Overview
BZX884S-B3V9-QYL from Nexperia is a 3.9 V ±2 % tolerance Zener diode in an ultra-small DFN1006BD-2 (SOD882BD) leadless SMD package with side-wettable flanks, designed for precision voltage regulation and reference functions in space-constrained automotive and industrial circuits at 5 mA test current.
For engineers reviewing the BZX884S-B3V9-QYL datasheet, BZX884S-B3V9-QYL pinout, BZX884S-B3V9-QYL application, or BZX884S-B3V9-QYL equivalent, this part supports stable low-voltage reference generation, overvoltage clamping, and biasing in battery-powered sensors, ECU power rails, and USB-C PD auxiliary regulation where AEC-Q101 qualification and 0.6 mm × 1.0 mm footprint are critical.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal Zener voltage of 3.9 V at IZ = 5 mA, exhibiting a typical differential resistance of 400 Ω and a temperature coefficient of −3.5 mV/K across its operating range. Its cathode-anode polarity is unidirectional and fixed by physical marking.
Designed for surface-mount reflow assembly, it leverages side-wettable flanks for automated optical solder-joint inspection and achieves thermal resistance of 340 K/W when mounted on standard FR4 with 70 μm copper. It is not intended for forward conduction or switching applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 3.82 V to 3.98 V at IZ = 5 mA - defines precise regulation threshold for low-voltage reference stability |
| Tolerance | ±2 % - enables tight voltage margin control in safety-critical automotive subsystems |
| Differential Resistance rdif | 400 Ω typ. at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Power Dissipation Ptot | 365 mW max. on FR4 PCB - sets maximum continuous power handling under standard layout conditions |
| Reverse Current IR | 3 μA max. at VR = 3 V - ensures low leakage in standby-biased reference networks |
| Junction Temperature Tj | −55 °C to +150 °C - supports operation in under-hood automotive environments |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: DFN1006BD-2 (SOD882BD), 2-terminal leadless plastic package, 1.0 mm × 0.6 mm × 0.47 mm body, 0.65 mm pitch, side-wettable flanks.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to higher-potential node during Zener operation; marked by bar on top surface |
| 2 | Anode (A) | Connected to lower-potential node (e.g., ground or return path); establishes reverse-bias polarity |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | 1.0 mm × 0.6 mm - enables placement in dense PCB layouts such as ADAS sensor modules and infotainment PMICs |
| Side-wettable flanks | Facilitates automated AOI inspection of solder joints without X-ray - reduces post-reflow defect escape in high-volume automotive manufacturing |
| AEC-Q101 qualification | Validated for automotive use - eliminates need for additional qualification testing in Tier-1 ECU designs |
| Low leakage at 3 V | ≤3 μA - minimizes quiescent current draw in always-on battery monitoring circuits |
| Stable temperature coefficient | −3.5 mV/K - enables predictable drift compensation in temperature-sensitive analog front-ends |
Applications
| Automotive ECU Power Rail Clamping | USB-C PD Auxiliary Reference |
|---|---|
|
Use Scenario: Clamp transient spikes on 5 V microcontroller supply rail in engine control units exposed to load-dump events. IC Role / Device Role / Timing Role: Zener diode acting as shunt overvoltage protector, conducting excess energy above 3.9 V to ground. Use Value: Prevents MCU brownout or latch-up during ISO 7637-2 pulse 5a transients while occupying <1 mm² PCB area. |
Use Scenario: Provide stable 3.9 V reference for CC logic detection circuitry in USB-C port controllers. IC Role / Device Role / Timing Role: Precision voltage reference source for comparator input in USB PD communication handshake. Use Value: Enables accurate CC line voltage discrimination within ±2 % tolerance, supporting robust plug orientation detection. |
| Industrial Sensor Biasing | Portable Medical Device Voltage Monitor |
|
Use Scenario: Bias amplifier input stage in a 3.3 V rail-powered temperature sensor module operating across −40 °C to +125 °C. IC Role / Device Role / Timing Role: Low-drift Zener reference establishing stable common-mode voltage for instrumentation amplifier. Use Value: Maintains <±5 mV drift over full temperature range due to −3.5 mV/K coefficient and AEC-Q101 thermal validation. |
Use Scenario: Monitor lithium coin-cell voltage decay in wearable ECG patch to trigger low-battery alert at 3.9 V threshold. IC Role / Device Role / Timing Role: Low-leakage (≤3 μA) Zener used in comparator-based undervoltage detection circuit. Use Value: Extends battery life by >12 months versus higher-leakage alternatives while ensuring reliable 3.9 V trip point accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX884S-B3V9-Q | Same electrical specs and package; differs only in marking code (2F vs QYL) and tape/reel packaging variant | No functional difference; identical performance in all automotive and industrial use cases | Select when standard Nexperia tape-and-reel logistics are preferred over custom labeling |
| MMSZ4685T1G | 3.9 V ±5 % tolerance, SOD-123 package (2.7 mm × 1.6 mm), 500 mW Ptot, no AEC-Q101 qualification | Larger footprint and wider tolerance limit use to non-automotive consumer or industrial prototypes | Choose only for cost-sensitive non-automotive designs where board space and qualification are secondary |
Compared with BZX884S-B3V9-QYL, the BZX884S-B3V9-Q offers identical regulation performance with standard logistics, while MMSZ4685T1G trades AEC-Q101 compliance and footprint for higher power and lower cost-making the QYL variant optimal for production automotive systems requiring verified reliability and miniaturization.
Availability
BZX884S-B3V9-QYL is available at Aetrix Electronics and suitable for automotive ECU protection, USB-C PD reference design, and portable medical device voltage monitoring requiring stable component supply with guaranteed long-term lifecycle support.
Supply support for BZX884S-B3V9-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 mobile markets.
The BZX884S-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode product line, engineered specifically for compact, high-reliability voltage reference and clamping in automotive electronics and space-constrained industrial systems.
FAQ
What is the maximum reverse current at 3 V for BZX884S-B3V9-QYL?
The maximum reverse current (IR) is 3 μA at VR = 3 V and Tj = 25 °C, as specified in Table 8 of the datasheet. This low leakage ensures minimal power loss in always-on reference circuits and supports extended battery life in portable applications.
Is BZX884S-B3V9-QYL compatible with lead-free reflow soldering?
Yes - it is qualified for lead-free reflow soldering per J-STD-020, with peak temperature up to 260 °C. The DFN1006BD-2 package uses side-wettable flanks to enable automated optical inspection of solder joints after standard reflow profiles.
Does this Zener diode support bidirectional voltage clamping?
No - BZX884S-B3V9-QYL is a unidirectional Zener diode with fixed cathode-anode polarity. It conducts only in reverse breakdown (cathode positive relative to anode) and must be oriented accordingly in circuit; forward conduction is limited to ≤0.9 V at 10 mA.
How does the −3.5 mV/K temperature coefficient affect regulation accuracy?
At a 100 °C temperature swing (e.g., −40 °C to +60 °C ambient), the Zener voltage shifts by approximately −350 mV - but since the coefficient is specified at IZ = 5 mA and stabilizes near zero for voltages >5 V, the actual drift for 3.9 V is bounded within ±15 mV across the full −55 °C to +150 °C junction range.
BZX884S-B3V9-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):
- 3.9 V
- Tolerance:
- ±2.05%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006BD-2
BZX884S-B3V9-QYL FAQ
1.How can I place an order for BZX884S-B3V9-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884S-B3V9-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-B3V9-QYL reliable?
The price and inventory of BZX884S-B3V9-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-B3V9-QYL is usually 5 days.
3.What payment methods are accepted for BZX884S-B3V9-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884S-B3V9-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884S-B3V9-QYL?
BZX884S-B3V9-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884S-B3V9-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-B3V9-QYL?
For technical support, including BZX884S-B3V9-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884S-B3V9-QYL requirements.
6.How does Aetrix verify that BZX884S-B3V9-QYL is sourced from the original manufacturer or authorized distributors?
All BZX884S-B3V9-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-B3V9-QYL meets industry standards.
7.What is the process for return or replacement of BZX884S-B3V9-QYL?
All BZX884S-B3V9-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX884S-B3V9-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-B3V9-QYL part is unused and in its original packaging.
Return procedure for BZX884S-B3V9-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX884S-B3V9-QYL Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
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