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Nexperia USA Inc. BZX8850S-C3V3-QYL
- Part No.:
- BZX8850S-C3V3-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850S-C3V3-QYL.pdf
- Description:
- DIODE ZENER 3.3V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:9,219
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Product details
Overview
BZX8850S-C3V3-QYL from Nexperia is a low-current Zener voltage regulator diode in the BZX8850S-Q series, designed for precision voltage reference and regulation in space-constrained, low-power circuits. It delivers a nominal 3.3 V regulation at 50 µA test current, with ±2 % tolerance (C-series), 600 Ω max differential resistance at 5 mA, and 1.5 µA max reverse leakage at 3.0 V, targeting battery-powered sensors and automotive microcontroller supply rails.
For engineers reviewing the BZX8850S-C3V3-QYL datasheet, BZX8850S-C3V3-QYL pinout, BZX8850S-C3V3-QYL application, or BZX8850S-C3V3-QYL equivalent, this page provides verified package mapping, AEC-Q101 qualification status, side-wettable flank solderability data, thermal resistance (340 K/W), and direct comparison to BZX8850S-B3V3-Q and MMBZ5226BS alternatives.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining stable output by conducting reverse current above its specified Zener voltage (3.13–3.47 V). Its low 50 µA test current enables operation in ultra-low-bias circuits, while intentional minor leakage rise improves switching speed and noise suppression per AN90031.
Constructed in a DFN1006BD-2 (SOD882BD) leadless package with side-wettable flanks, it supports automated optical inspection (AOI) and reflow soldering on FR4 PCBs. Junction temperature is rated to 150 °C, and ambient operating range spans −55 °C to +150 °C - validated under AEC-Q101 stress testing for automotive use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.13 V to 3.47 V at IZ = 50 µA - defines precise regulation window for 3.3 V rail stabilization |
| Tolerance | ±2 % (C-series) - ensures tight voltage accuracy without external trimming |
| Differential Resistance (rdiff) | ≤600 Ω at IZ = 5 mA - limits output impedance drift under load variation |
| Reverse Leakage (IR) | ≤1.5 µA at VR = 3.0 V - minimizes quiescent current in always-on monitoring circuits |
| Power Dissipation (Ptot) | 365 mW at Tamb ≤ 25 °C - sets maximum continuous power handling on standard FR4 PCB |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - enables use as low-drop rectifier or clamp in signal paths |
| Thermal Resistance (Rth(j-a)) | 340 K/W - determines junction-to-ambient temperature rise under steady-state bias |
Pinout & Package
Package: DFN1006BD-2 (SOD882BD), ultra-small leadless surface-mount plastic package (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 | Cathode (K) | Connected to regulated output node; marking bar on top surface identifies this terminal |
| 2 | Anode (A) | Connected to ground or lower-potential reference; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and body electronics |
| Side-wettable flanks (SWF) | Enables automated optical inspection (AOI) of solder joints on bottom-terminated DFN packages |
| Low 50 µA test current | Supports regulation in micropower systems such as coin-cell IoT sensors and wake-up circuits |
| Optimized leakage profile | Intentional minor IR rise reduces switching transients and high-frequency noise in feedback loops |
| Ultra-small footprint | 0.65 mm pitch and 0.6 mm width allow placement in dense MCU peripheral layouts |
Applications
| Automotive Body Control Module | Portable Medical Sensor Node |
|---|---|
|
Use Scenario: Providing stable 3.3 V reference for LIN bus transceiver bias and microcontroller ADC reference in door module ECUs. IC Role / Device Role / Timing Role: Shunt voltage regulator maintaining rail integrity during load dump and cold-crank transients. Use Value: ±2 % tolerance and AEC-Q101 qualification ensure compliance with ISO 16750-2 electrical stress requirements without additional filtering. |
Use Scenario: Supplying precision bias to analog front-end of wearable ECG sensor powered by CR2032 battery. IC Role / Device Role / Timing Role: Low-current Zener reference enabling <1 µA sleep-mode current draw while preserving measurement accuracy. Use Value: 50 µA test current and 1.5 µA leakage at 3.0 V extend battery life beyond 2 years in intermittent-sampling mode. |
| Industrial PLC Input Protection | Smart Home Motion Detector |
|
Use Scenario: Clamping and regulating 3.3 V auxiliary supply for optocoupler input stages in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Overvoltage protection and voltage stabilization element in isolated digital input circuitry. Use Value: 365 mW power rating and 340 K/W thermal resistance allow safe operation without heatsinking at 70 °C ambient. |
Use Scenario: Biasing PIR sensor amplifier and setting threshold for passive infrared detection logic in battery-operated security lights. IC Role / Device Role / Timing Role: Precision voltage reference defining comparator trip point in ultra-low-power wake-up circuit. Use Value: 600 Ω differential resistance ensures stable threshold despite battery voltage sag from 3.6 V to 2.8 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX8850S-B3V3-Q | ±5 % tolerance (vs. ±2 %); identical package, pinout, and thermal specs | Acceptable where cost sensitivity outweighs voltage accuracy requirements | Select when budget constraints dominate and system-level calibration compensates for wider VZ spread |
| MMBZ5226BS | Same 3.3 V nominal, but SOT-23 package (larger), 1000 Ω rdiff, no AEC-Q101 qualification | Suitable for non-automotive consumer designs with less stringent reliability demands | Choose only if board layout allows SOT-23 footprint and automotive qualification is not required |
Compared with BZX8850S-B3V3-Q, the C3V3 variant offers tighter regulation critical for ADC references; versus MMBZ5226BS, it delivers superior thermal performance, smaller size, and automotive-grade reliability - making it the sole choice for space-limited, safety-relevant 3.3 V regulation.
Availability
BZX8850S-C3V3-QYL is available at Aetrix Electronics and suitable for automotive body electronics, portable medical sensors, industrial PLC inputs, and smart home motion detectors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZX8850S-C3V3-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.
BZX8850S-Q belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for low-current, high-accuracy voltage regulation in harsh-environment automotive and portable electronics applications.
FAQ
What is the maximum continuous reverse power dissipation for BZX8850S-C3V3-QYL?
The total power dissipation is rated at 365 mW when mounted on an FR4 PCB with single-sided copper and standard footprint at ambient ≤25 °C. Derating is required above 25 °C using the 340 K/W thermal resistance value - for example, at 70 °C ambient, maximum allowable power drops to approximately 245 mW.
Does BZX8850S-C3V3-QYL support automated optical inspection (AOI)?
Yes - its DFN1006BD-2 package features side-wettable flanks, enabling reliable solder-joint inspection via AOI systems. This design meets IPC-7351B standards for DFN packages and is explicitly validated for high-yield reflow assembly in automotive manufacturing lines.
How does the "intentional minor rise of leakage current" benefit circuit performance?
Per application note AN90031, this controlled leakage enhancement reduces switching time and suppresses high-frequency noise in regulation loops - particularly beneficial in fast-response feedback circuits like DC-DC converter references or precision comparator thresholds where transient stability is critical.
Can BZX8850S-C3V3-QYL replace older BZX8850S-C3V3 variants without layout changes?
Yes - BZX8850S-C3V3-QYL uses the identical DFN1006BD-2 (SOD882BD) package, pinout, and marking scheme as prior revisions. The "QYL" suffix denotes tape-and-reel packaging with enhanced moisture sensitivity level (MSL) control, requiring no PCB redesign or process adjustment.
BZX8850S-C3V3-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):
- 3.3 V
- Tolerance:
- ±5%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 7.5 µA @ 1.5 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
BZX8850S-C3V3-QYL FAQ
1.How can I place an order for BZX8850S-C3V3-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850S-C3V3-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 BZX8850S-C3V3-QYL reliable?
The price and inventory of BZX8850S-C3V3-QYL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8850S-C3V3-QYL is usually 5 days.
3.What payment methods are accepted for BZX8850S-C3V3-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850S-C3V3-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850S-C3V3-QYL?
BZX8850S-C3V3-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850S-C3V3-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 BZX8850S-C3V3-QYL?
For technical support, including BZX8850S-C3V3-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850S-C3V3-QYL requirements.
6.How does Aetrix verify that BZX8850S-C3V3-QYL is sourced from the original manufacturer or authorized distributors?
All BZX8850S-C3V3-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 BZX8850S-C3V3-QYL meets industry standards.
7.What is the process for return or replacement of BZX8850S-C3V3-QYL?
All BZX8850S-C3V3-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850S-C3V3-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 BZX8850S-C3V3-QYL part is unused and in its original packaging.
Return procedure for BZX8850S-C3V3-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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