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Nexperia USA Inc. BZX8850S-B3V3-QYL
- Part No.:
- BZX8850S-B3V3-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850S-B3V3-QYL.pdf
- Description:
- DIODE ZENER 3.3V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:3,507
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Product details
Overview
BZX8850S-B3V3-QYL from Nexperia is a low-current Zener voltage regulator diode in a DFN1006BD-2 (SOD882BD) leadless SMD package, designed for precision biasing and voltage reference in space-constrained, battery-powered systems. It delivers a nominal 3.3 V regulation at 50 µA test current, with ±2 % tolerance, 365 mW total power dissipation, and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZX8850S-B3V3-QYL datasheet, BZX8850S-B3V3-QYL pinout, BZX8850S-B3V3-QYL application, or BZX8850S-B3V3-QYL equivalent, this device serves as a compact, low-leakage voltage reference for portable instrumentation, sensor signal conditioning, and automotive microcontroller supply monitoring where stable low-current regulation is critical.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified working voltage of 3.23 V to 3.37 V at IZ = 50 µA, exhibiting a differential resistance of ≤600 Ω at 5 mA and a temperature coefficient of −3.5 mV/K. Its ultra-low test current enables minimal quiescent power draw in always-on circuits.
The device features side-wettable flanks for automated optical solder-joint inspection and is rated for junction temperatures up to 150 °C. Its 1 mm × 0.6 mm × 0.47 mm footprint supports high-density PCB layouts while maintaining thermal resistance of 340 K/W to ambient on standard FR4.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 3.3 V (regulated output at 50 µA; tight ±2 % tolerance ensures predictable reference accuracy) |
| Power Dissipation | 365 mW (maximum continuous dissipation on standard FR4 PCB; defines safe operating envelope) |
| Forward Voltage | ≤0.9 V at 10 mA (low forward drop enables efficient anode-cathode polarity verification during test) |
| Differential Resistance | ≤600 Ω at 5 mA (low dynamic impedance maintains regulation stability under small load variations) |
| Reverse Leakage | ≤1.5 µA at VR = 3.0 V (ultra-low leakage preserves battery life in standby and sleep modes) |
| Junction Temperature | 150 °C max (enables operation in under-hood automotive environments without derating) |
| Package | DFN1006BD-2 (SOD882BD); 0.65 mm pitch, side-wettable flanks for AOI-compatible reflow) |
Pinout & Package
DFN1006BD-2 (SOD882BD) is a 2-terminal, leadless surface-mount plastic package measuring 1.0 mm × 0.6 mm × 0.47 mm with side-wettable flanks for automated optical 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; marking bar identifies this terminal for correct orientation during placement |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased configuration establishes Zener breakdown voltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints without X-ray, reducing manufacturing defect escape |
| Low test current (50 µA) | Minimizes quiescent current draw in battery-powered sensors and IoT endpoints |
| ±2 % voltage tolerance | Reduces need for post-production trimming in precision analog front-ends |
| Optimized leakage profile | Intentional minor IR increase improves switching speed and reduces noise in feedback paths |
Applications
| Automotive Microcontroller Reference | Portable Sensor Biasing |
|---|---|
Use Scenario: Providing stable 3.3 V reference for ADC input scaling and internal LDO monitoring in automotive body control modules. IC Role / Device Role / Timing Role: Zener voltage reference diode regulating bias point for analog subsystems. Use Value: AEC-Q101 qualification and 150 °C junction rating ensure reliability in under-dash environments without thermal derating. |
Use Scenario: Supplying precise bias voltage to MEMS accelerometers and temperature sensors in wearable health monitors. IC Role / Device Role / Timing Role: Low-current Zener regulator establishing reference potential for sensor excitation and signal conditioning. Use Value: 50 µA test current and ≤1.5 µA leakage enable multi-year battery life in always-on sensing nodes. |
| Industrial PLC Input Protection | USB-C Power Negotiation Reference |
Use Scenario: Clamping and stabilizing 3.3 V logic-level signals at digital input terminals of programmable logic controllers. IC Role / Device Role / Timing Role: Voltage regulator diode acting as overvoltage clamp and reference source for optocoupler biasing. Use Value: 365 mW power rating and 600 Ω differential resistance provide robust transient suppression without sacrificing regulation fidelity. |
Use Scenario: Generating accurate 3.3 V reference for USB-C CC line voltage detection and PD communication timing. IC Role / Device Role / Timing Role: Precision Zener reference setting threshold for USB PD controller comparator inputs. Use Value: ±2 % tolerance and low temperature coefficient (−3.5 mV/K) maintain PD handshake reliability across −40 °C to +105 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5226BS-7-F (Diodes Inc.) | 3.3 V, ±5 % tolerance, SOD-323 package (1.7 mm × 1.3 mm), higher 200 mW Ptot, no AEC-Q101 rating | Larger footprint; unsuitable for automotive AEC-compliant designs | Select when cost sensitivity outweighs automotive qualification and board space constraints |
| BZX84-C3V3 (Nexperia) | 3.3 V, ±5 % tolerance, SOT-23 package (3.0 mm × 1.4 mm), 300 mW Ptot, AEC-Q101 qualified | 3× larger footprint; lacks side-wettable flanks and ultra-low 50 µA test current | Select when legacy SOT-23 assembly lines are in use and AOI compatibility is not required |
Compared with MMBZ5226BS-7-F and BZX84-C3V3, the BZX8850S-B3V3-QYL offers superior board-area efficiency, tighter voltage tolerance, and guaranteed automotive qualification - making it optimal for next-generation compact, safety-aware embedded systems where space and reliability are co-constrained.
Availability
BZX8850S-B3V3-QYL is available at Aetrix Electronics and suitable for automotive electronics, portable medical devices, and industrial sensor interfaces requiring stable component supply, long-lifecycle support, and AEC-Q101 compliance.
Supply support for BZX8850S-B3V3-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 semiconductors, delivering high-performance, reliable components for automotive, industrial, and consumer markets.
The BZX8850S-Q series belongs to Nexperia's precision low-current Zener regulator portfolio, engineered specifically for space-constrained, battery-sensitive, and automotive-grade applications demanding stable voltage references at microampere bias levels.
FAQ
What is the maximum reverse current at 3.0 V for BZX8850S-B3V3-QYL?
The maximum reverse current (leakage) at VR = 3.0 V is 1.5 µA, measured at Tj = 25 °C. This ultra-low leakage supports extended battery life in always-on applications and minimizes error in high-impedance reference networks.
Can BZX8850S-B3V3-QYL be used in place of a standard 3.3 V Zener in a linear regulator feedback loop?
Yes - its 3.23 V to 3.37 V Zener voltage range at 50 µA, low 600 Ω differential resistance, and −3.5 mV/K temperature coefficient make it suitable for feedback references in low-power LDOs, provided the loop bias current matches the 50 µA test condition.
Does the DFN1006BD-2 package require special reflow profile considerations?
Yes - the DFN1006BD-2 package uses a standard reflow profile per J-STD-020, but requires precise stencil design (0.12 mm thickness, 0.3 mm × 0.4 mm apertures) and alignment to ensure wetting of side-wettable flanks for AOI-compatible joint formation.
Is the cathode marking visible under standard optical inspection?
Yes - the cathode is indicated by a laser-marked bar on the top surface of the DFN1006BD-2 package, fully compatible with automated optical inspection systems configured for 0.6 mm pitch, side-wettable leadless components.
BZX8850S-B3V3-QYL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX8850S-Q
- Package/Case:
- SOD-882
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.3 V
- Tolerance:
- ±2%
- 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-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006BD-2
BZX8850S-B3V3-QYL FAQ
1.How can I place an order for BZX8850S-B3V3-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850S-B3V3-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-B3V3-QYL reliable?
The price and inventory of BZX8850S-B3V3-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-B3V3-QYL is usually 5 days.
3.What payment methods are accepted for BZX8850S-B3V3-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850S-B3V3-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850S-B3V3-QYL?
BZX8850S-B3V3-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850S-B3V3-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-B3V3-QYL?
For technical support, including BZX8850S-B3V3-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850S-B3V3-QYL requirements.
6.How does Aetrix verify that BZX8850S-B3V3-QYL is sourced from the original manufacturer or authorized distributors?
All BZX8850S-B3V3-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-B3V3-QYL meets industry standards.
7.What is the process for return or replacement of BZX8850S-B3V3-QYL?
All BZX8850S-B3V3-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850S-B3V3-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-B3V3-QYL part is unused and in its original packaging.
Return procedure for BZX8850S-B3V3-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850S-B3V3-QYL Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
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