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Nexperia USA Inc. BZX884S-C3V9-QYL
- Part No.:
- BZX884S-C3V9-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884S-C3V9-QYL.pdf
- Description:
- DIODE ZENER 3.9V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:8,586
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Product details
Overview
BZX884S-C3V9-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 3.9 V Zener voltage with ±5 % tolerance, 400 Ω typical differential resistance at 5 mA, and operates up to 150 °C junction temperature in the DFN1006BD-2 (SOD882BD) package.
For engineers reviewing the BZX884S-C3V9-QYL datasheet, BZX884S-C3V9-QYL pinout, BZX884S-C3V9-QYL application, or BZX884S-C3V9-QYL equivalent, key selection criteria include its AEC-Q101 qualification, side-wettable flanks for automated optical inspection, low 3 μA reverse current at 1 V, and thermal resistance of 340 K/W on standard FR4 PCB.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage under varying load and temperature conditions. Its temperature coefficient of −3.5 mV/K at 5 mA enables predictable drift compensation in bias networks and reference circuits.
The device uses silicon planar epitaxial construction with cathode-anode polarity defined by a marking bar on the top surface. Its ultra-small 1.0 mm × 0.6 mm footprint and side-wettable flanks support high-density reflow-soldered layouts compliant with automotive IPC-A-610 Class 3 requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.7 V to 4.1 V at IZ = 5 mA - defines regulation window for 3.9 V nominal reference |
| Differential Resistance (rdif) | 400 Ω typ. at IZ = 5 mA - determines output impedance and load regulation error |
| Reverse Current (IR) | 3 μA max. at VR = 1 V - ensures low leakage in standby power rails |
| Forward Voltage (VF) | 0.9 V max. at IF = 10 mA - supports use as clamping diode in bidirectional protection |
| Total Power Dissipation (Ptot) | 365 mW on FR4 PCB - sets maximum continuous Zener current to ~94 mA at 3.9 V |
| Junction Temperature (Tj) | −55 °C to +150 °C - enables 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), leadless ultra-small plastic package with side-wettable flanks; dimensions 1.0 mm × 0.6 mm × 0.47 mm, 0.65 mm pitch, tin-plated terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar on top surface identifies this terminal |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reverse-biased junction during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints without X-ray, critical for automotive production traceability |
| AEC-Q101 qualification | Validated for automotive applications including temperature cycling, HTRB, and ESD per ISO 10605 |
| ±5 % Zener tolerance | Supports cost-sensitive designs where tighter tolerance is unnecessary, reducing BOM cost vs. ±2 % variants |
| Low thermal resistance | 340 K/W junction-to-ambient enables stable regulation without heatsinking in space-constrained modules |
| Ultra-small footprint | DFN1006BD-2 saves >60 % board area vs. SOD-323, enabling miniaturization in ADAS sensor nodes and ECUs |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing 3.3 V supply rail for microcontroller I/O peripherals in door module electronics. IC Role / Device Role / Timing Role: Zener shunt regulator providing local voltage reference and transient suppression for LIN transceiver biasing. Use Value: Maintains <±2 % output deviation across −40 °C to +125 °C ambient, eliminating need for external LDO in cost-sensitive nodes. |
Use Scenario: Biasing thermistor-based temperature sensing circuit in HVAC control panel. IC Role / Device Role / Timing Role: Precision voltage reference establishing known current through NTC network for linearized ADC conversion. Use Value: −3.5 mV/K temperature coefficient allows predictable offset correction in firmware, improving measurement accuracy to ±0.5 °C. |
| USB-C Power Delivery Protection | Smart Meter Voltage Monitoring |
Use Scenario: Overvoltage clamp on VBUS line during hot-plug events in portable charging accessories. IC Role / Device Role / Timing Role: Fast-acting shunt protector limiting transient spikes to <4.5 V before USB-PD controller IC shutdown. Use Value: 3 μA leakage at 1 V ensures no measurable impact on standby current, preserving battery life in always-on devices. |
Use Scenario: Reference voltage source for analog front-end monitoring mains voltage fluctuations in utility metering ICs. IC Role / Device Role / Timing Role: Stable 3.9 V reference feeding comparator input to detect brownout or overvoltage grid conditions. Use Value: 400 Ω dynamic impedance ensures minimal reference shift under varying load, enabling reliable 0.2 % threshold detection. |
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 | Nominal 3.9 V with ±2 % tolerance (vs. ±5 %); 375 Ω rdif at 5 mA | Higher precision required in feedback loops of isolated DC-DC converters | Select when tighter regulation stability outweighs cost premium and leakage increase |
| MMSZ4685T1G | 3.9 V ±5 %, but SOD-123 package (2.7 mm × 1.6 mm); 600 Ω rdif; not AEC-Q101 qualified | Suitable for non-automotive consumer power supplies with less stringent size constraints | Choose only for legacy board redesigns where footprint compatibility is mandatory |
Compared with BZX884S-C3V9-QYL, the BZX884S-B3V9-Q offers tighter tolerance and lower impedance but higher cost and identical automotive qualification, while MMSZ4685T1G sacrifices qualification and performance for legacy package compatibility.
Availability
BZX884S-C3V9-QYL is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, USB-C protection circuits, and smart metering systems requiring stable component supply with full AEC-Q101 traceability.
Supply support for BZX884S-C3V9-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, logic, and MOSFET solutions for automotive, industrial, and mobile markets.
The BZX884S-Q series belongs to Nexperia's automotive-qualified Zener diode portfolio, engineered specifically for space-constrained, high-reliability voltage reference and protection functions in harsh-environment electronics.
FAQ
What is the maximum continuous Zener current for BZX884S-C3V9-QYL?
The maximum continuous Zener current is approximately 94 mA, calculated from Ptot = 365 mW and VZ = 3.9 V. This assumes operation at 25 °C ambient on a standard FR4 PCB with single-sided 70 μm copper; derating is required above 25 °C per the 340 K/W thermal resistance.
How does the side-wettable flank design benefit manufacturing?
Side-wettable flanks enable automated optical inspection (AOI) of solder joint quality without X-ray imaging, directly supporting IPC-A-610 Class 3 compliance for automotive production. The exposed metal sidewalls reflect light consistently, allowing vision systems to verify fillet formation and coplanarity on both terminals.
Is BZX884S-C3V9-QYL suitable for bidirectional ESD protection?
No - it is a unidirectional Zener diode optimized for reverse-bias regulation. For bidirectional ESD protection, a dedicated TVS diode such as PESD5V0S1BA should be used. Its forward conduction at 0.9 V is incidental, not characterized for surge handling in forward direction.
What is the significance of the 'C' in the part number BZX884S-C3V9-QYL?
The 'C' denotes the ±5 % Zener voltage tolerance grade, distinguishing it from 'B' grade (±2 %). This is confirmed in Table 4 of the datasheet, where BZX884S-C3V9-Q is marked as '4U', and the 'C' prefix consistently correlates with wider-tolerance variants across the full 2.4 V–75 V range.
BZX884S-C3V9-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:
- ±5.13%
- 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-C3V9-QYL FAQ
1.How can I place an order for BZX884S-C3V9-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884S-C3V9-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-C3V9-QYL reliable?
The price and inventory of BZX884S-C3V9-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-C3V9-QYL is usually 5 days.
3.What payment methods are accepted for BZX884S-C3V9-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884S-C3V9-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884S-C3V9-QYL?
BZX884S-C3V9-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884S-C3V9-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-C3V9-QYL?
For technical support, including BZX884S-C3V9-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884S-C3V9-QYL requirements.
6.How does Aetrix verify that BZX884S-C3V9-QYL is sourced from the original manufacturer or authorized distributors?
All BZX884S-C3V9-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-C3V9-QYL meets industry standards.
7.What is the process for return or replacement of BZX884S-C3V9-QYL?
All BZX884S-C3V9-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX884S-C3V9-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-C3V9-QYL part is unused and in its original packaging.
Return procedure for BZX884S-C3V9-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX884S-C3V9-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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