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Nexperia USA Inc. BZX8850S-B3V0-QYL
- Part No.:
- BZX8850S-B3V0-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850S-B3V0-QYL.pdf
- Description:
- DIODE ZENER 3V 365MW DFN1006BD-2
- Quantity:
- Payment:
- Shipping:
Inventory:7,455
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Product details
Overview
BZX8850S-B3V0-QYL from Nexperia is a low-current Zener voltage regulator diode in an ultra-small DFN1006BD-2 (SOD882BD) package, designed for precision biasing and voltage reference in space-constrained, low-power circuits. It delivers a nominal 3.0 V regulation at 50 µA test current, with ±2 % tolerance, 365 mW total power dissipation, and qualified AEC-Q101 automotive reliability - deployed in sensor signal conditioning and portable battery management.
For engineers reviewing the BZX8850S-B3V0-QYL datasheet, BZX8850S-B3V0-QYL pinout, BZX8850S-B3V0-QYL application, or BZX8850S-B3V0-QYL equivalent, this page provides verified electrical parameters, thermal behavior, side-wettable flank soldering guidance, and automotive-grade qualification context - critical for low-leakage, stable reference design in wearables and automotive body electronics.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified working voltage of 2.94 V to 3.06 V at IZ = 50 µA, exhibiting a differential resistance ≤600 Ω at 5 mA and a temperature coefficient of −3.5 mV/K. Its low 0.8 µA max reverse current at VR = 2.4 V enables minimal quiescent drain in always-on monitoring circuits.
The device uses a planar epitaxial process with side-wettable flanks for automated optical solder-joint inspection, and its 1.0 mm × 0.6 mm × 0.47 mm footprint supports high-density PCB layouts. Thermal resistance from junction to ambient is 340 K/W on standard FR4, limiting continuous power handling under natural convection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 3.0 V (2.94 V to 3.06 V at IZ = 50 µA; tight tolerance enables accurate low-current reference) |
| Tolerance | ±2 % (B-series grade; reduces calibration overhead in production test) |
| Max Forward Voltage | 0.9 V at IF = 10 mA (low VF minimizes forward-bias loss in dual-direction protection schemes) |
| Total Power Dissipation | 365 mW at Tamb ≤ 25 °C (derates linearly above 25 °C; defines safe operating area on standard FR4) |
| Reverse Current | 0.8 µA max at VR = 2.4 V (ultra-low leakage preserves battery life in sleep-mode circuits) |
| Junction Temperature | −55 °C to +150 °C (AEC-Q101 qualified; supports under-hood and engine-control module environments) |
| 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 enabling automated optical inspection of solder joints. The cathode is marked by a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; polarity must be observed to maintain reverse-bias operation |
| 2 (A) | Anode | Connected to ground or lower-potential rail; completes Zener conduction path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - enables stable regulation in microamp-level bias networks without loading sensitive sources |
| AEC-Q101 qualification | Qualified for automotive applications including body control modules and infotainment power rails |
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints - critical for zero-defect manufacturing in automotive PCBAs |
| Ultra-small footprint | 1.0 mm × 0.6 mm area - saves >60 % board space vs. traditional SOD-323 Zeners in wearable and IoT sensor nodes |
Applications
| Automotive Sensor Biasing | Portable Device Voltage Reference |
|---|---|
|
Use Scenario: Providing stable 3.0 V bias to MEMS pressure sensors in tire pressure monitoring systems (TPMS). IC Role / Device Role / Timing Role: Zener voltage reference maintaining sensor excitation accuracy across −40 °C to +125 °C ambient. Use Value: ±2 % tolerance and −3.5 mV/K tempco ensure <±15 mV drift over full automotive temperature range, preserving ADC linearity. |
Use Scenario: Generating precise 3.0 V reference for fuel gauge ICs in Bluetooth earbuds and smartwatches. IC Role / Device Role / Timing Role: Low-leakage shunt regulator supplying reference to battery fuel gauging circuitry. Use Value: 0.8 µA max reverse current at 2.4 V extends standby battery life beyond 12 months in always-on monitoring mode. |
| Industrial Signal Conditioning | USB-C Power Negotiation Clamp |
|
Use Scenario: Clamping and biasing analog front-end inputs in industrial 4–20 mA loop-powered transmitters. IC Role / Device Role / Timing Role: Precision shunt element stabilizing op-amp reference voltage under varying loop current loads. Use Value: 600 Ω max differential resistance ensures <1.8 mV error contribution at 3 mA load variation - within 12-bit DAC resolution. |
Use Scenario: Protecting CC pin voltage in USB-C receptacles during power role swap negotiation. IC Role / Device Role / Timing Role: Fast-response clamp limiting CC line to 3.0 V ±2 % during VCONN handshaking sequences. Use Value: 365 mW power rating withstands transient 100 ms surges up to 200 mA without degradation - compliant with USB PD 3.1 spec. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX8850S-C3V0-Q | ±5 % tolerance (vs. ±2 %), identical package and 3.0 V nominal, higher leakage (1.0 µA max at VR = 2.4 V) | Suitable for non-critical bias where cost sensitivity outweighs precision; not recommended for automotive sensor references | Select only when tighter tolerance is unnecessary and BOM cost reduction is prioritized over long-term stability. |
| MMSZ4684T1G | 3.0 V nominal, ±5 %, SOD-123 package (2.7 mm × 1.6 mm), 500 mW Ptot, 100 nA leakage at 1 V | Larger footprint limits high-density layouts; lower leakage benefits ultra-low-power sleep modes but lacks AEC-Q101 qualification | Choose for non-automotive, space-tolerant designs requiring sub-100 nA leakage - not for AEC-compliant systems. |
Compared with BZX8850S-C3V0-Q, the BZX8850S-B3V0-QYL offers tighter regulation and lower leakage for automotive-specified accuracy; versus MMSZ4684T1G, it trades absolute leakage performance for AEC-Q101 compliance and 60 % smaller board area - making it optimal for space-constrained, safety-aware applications.
Availability
BZX8850S-B3V0-QYL is available at Aetrix Electronics and suitable for automotive sensor biasing, portable device voltage reference, and industrial signal conditioning requiring stable component supply, AEC-Q101 traceability, and ultra-small footprint reliability.
Supply support for BZX8850S-B3V0-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 logic, discrete, and MOSFET devices, with leadership in automotive-qualified components and advanced packaging.
The BZX8850S-Q series belongs to Nexperia's low-current Zener regulator product line, engineered specifically for precision voltage referencing in space-constrained, battery-sensitive, and automotive-grade applications - emphasizing manufacturability, thermal robustness, and AEC-Q101 compliance.
FAQ
What is the maximum reverse current at 2.4 V for BZX8850S-B3V0-QYL?
The maximum reverse current (IR) is 0.8 µA at VR = 2.4 V and Tj = 25 °C, per Table 8 of the official Nexperia datasheet Rev. 3. This ultra-low leakage supports multi-year battery life in always-on sensor nodes and ensures minimal loading on high-impedance reference sources.
Is BZX8850S-B3V0-QYL qualified for automotive use?
Yes - it is fully qualified to AEC-Q101 for stress testing of discrete semiconductors and explicitly recommended for automotive applications in the datasheet's General Description and Test Information sections. Its operating temperature range (−55 °C to +150 °C) and package construction meet automotive under-hood requirements.
How does the DFN1006BD-2 package support automated optical inspection?
The package features side-wettable flanks - exposed metal on the side walls of the terminals - allowing solder fillet height and wetting quality to be optically verified during AOI. This eliminates reliance on X-ray for solder joint assessment and improves first-pass yield in automotive PCB assembly lines.
What is the thermal resistance from junction to ambient for this device?
Rth(j-a) is 340 K/W when mounted on a standard FR4 PCB with single-sided copper, tin-plated, and the recommended footprint (per Table 6). This value assumes free-air convection and defines the thermal derating curve - e.g., at 70 °C ambient, max power drops to ~250 mW.
BZX8850S-B3V0-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 V
- Tolerance:
- ±2%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 800 nA @ 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
BZX8850S-B3V0-QYL FAQ
1.How can I place an order for BZX8850S-B3V0-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850S-B3V0-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-B3V0-QYL reliable?
The price and inventory of BZX8850S-B3V0-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-B3V0-QYL is usually 5 days.
3.What payment methods are accepted for BZX8850S-B3V0-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850S-B3V0-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850S-B3V0-QYL?
BZX8850S-B3V0-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850S-B3V0-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-B3V0-QYL?
For technical support, including BZX8850S-B3V0-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850S-B3V0-QYL requirements.
6.How does Aetrix verify that BZX8850S-B3V0-QYL is sourced from the original manufacturer or authorized distributors?
All BZX8850S-B3V0-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-B3V0-QYL meets industry standards.
7.What is the process for return or replacement of BZX8850S-B3V0-QYL?
All BZX8850S-B3V0-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850S-B3V0-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-B3V0-QYL part is unused and in its original packaging.
Return procedure for BZX8850S-B3V0-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850S-B3V0-QYL Tags
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