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Nexperia USA Inc. BZX8850S-B2V7-QYL
- Part No.:
- BZX8850S-B2V7-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850S-B2V7-QYL.pdf
- Description:
- DIODE ZENER 2.7V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:6,833
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Product details
Overview
BZX8850S-B2V7-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 portable electronics. It delivers a nominal 2.7 V Zener voltage at 50 µA test current, with ±2 % tolerance, 365 mW total power dissipation, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the BZX8850S-B2V7-QYL datasheet, BZX8850S-B2V7-QYL pinout, BZX8850S-B2V7-QYL application, or BZX8850S-B2V7-QYL equivalent, this device is selected for ultra-low-current regulation in battery-powered sensor nodes, ECU reference rails, and low-power analog front-ends where thermal footprint and leakage sensitivity are critical.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified working voltage of 2.65 V to 2.75 V at IZ = 50 µA, exhibiting a temperature coefficient of −3.5 mV/K and differential resistance ≤600 Ω at 5 mA. Its low 1.0 µA maximum reverse current at VR = 2.0 V enables stable operation in microampere-bias circuits.
The device uses side-wettable flanks for automated optical solder-joint inspection and is characterized for junction temperatures up to 150 °C. Thermal resistance from junction to ambient is 340 K/W on standard FR4 PCB, supporting operation in thermally isolated low-power domains without heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.65 V to 2.75 V at IZ = 50 µA - defines precise regulation point for low-bias reference design |
| Tolerance | ±2 % - ensures tight voltage accuracy without post-production trimming |
| Power Dissipation (Ptot) | 365 mW at Tamb ≤ 25 °C - supports continuous operation in unheatsinked PCB layouts |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - enables use as low-drop rectifier or clamp in dual-role circuits |
| Reverse Current (IR) | ≤ 1.0 µA at VR = 2.0 V - minimizes quiescent drain in always-on battery monitoring paths |
| Package | DFN1006BD-2 (SOD882BD), 1.0 mm × 0.6 mm × 0.47 mm - enables <1 mm² board area usage in wearables and modules |
| AEC-Q101 Qualified | Yes - validated for automotive under-hood and infotainment applications per stress test requirements |
Pinout & Package
DFN1006BD-2 (SOD882BD) is a 2-terminal, leadless, surface-mount plastic package with side-wettable flanks for AOI-compatible reflow assembly. Body dimensions: 1.0 mm × 0.6 mm × 0.47 mm; pitch: 0.65 mm; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; polarity marker aligns with PCB silkscreen bar for error-proof placement |
| 2 (A) | Anode | Connected to ground or lower-potential rail; forms reverse-biased junction for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low test current | Specified at 50 µA - enables regulation in nanoampere standby modes without compromising stability |
| Side-wettable flanks | Integrated into DFN1006BD-2 outline - allows automated optical inspection of solder joints without X-ray |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - improves switching speed and reduces noise in dynamic bias networks |
| Automotive qualification | AEC-Q101 compliant - supports deployment in engine control units, ADAS sensors, and body electronics |
| Thermal robustness | 150 °C max junction temperature - sustains operation in high-ambient environments without derating below 125 °C |
Applications
| Automotive Sensor Biasing | Portable Medical Device Reference |
|---|---|
|
Use Scenario: Providing stable 2.7 V reference for MEMS pressure sensor signal conditioning in engine oil pressure modules. IC Role / Device Role / Timing Role: Zener voltage reference diode supplying precision bias to op-amp input stage and ADC reference divider. Use Value: ±2 % tolerance and −3.5 mV/K TC ensure <±10 mV drift over −40 °C to +125 °C, meeting ASIL-B sensor accuracy requirements. |
Use Scenario: Generating low-noise 2.7 V supply for analog front-end of handheld ECG monitor powered by coin cell. IC Role / Device Role / Timing Role: Low-current Zener regulator establishing clean reference for instrumentation amplifier and SAR ADC. Use Value: 1.0 µA max reverse current at 2.0 V preserves battery life >5 years in standby, while side-wettable flanks ensure IPC-A-610 Class 3 assembly compliance. |
| IoT Node Voltage Clamp | Industrial PLC Input Protection |
|
Use Scenario: Clamping 3.3 V logic rail against ESD transients in LoRaWAN end-node using series resistor + Zener topology. IC Role / Device Role / Timing Role: Transient voltage suppressor operating in Zener breakdown during overvoltage events. Use Value: 365 mW Ptot and 40 W non-repetitive peak power (tp = 100 µs) absorb IEC 61000-4-2 Level 4 surges without degradation. |
Use Scenario: Regulating 2.7 V auxiliary rail for optocoupler LED bias in 24 V DC industrial digital input module. IC Role / Device Role / Timing Role: Precision shunt regulator stabilizing LED forward current across wide temperature range. Use Value: 600 Ω max differential resistance ensures <±0.5 % current variation over 0–10 mA LED drive range, improving isolation channel consistency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX8840S-B2V7 | Same 2.7 V/±2 % spec but in larger SOD323 package (1.7 mm × 1.3 mm); 500 mW Ptot; no AEC-Q101 qualification | Higher power handling but 2.8× larger footprint; suitable for non-automotive industrial boards with thermal margin | Select when board space permits and automotive qualification is unnecessary; avoid in AEC-compliant designs |
| MMSZ4678T1G | 2.7 V/±5 %; SOD-123 package; 500 mW Ptot; no side-wettable flanks; not AEC-Q101 qualified | Looser tolerance and no AOI support; higher leakage (5 µA at 2.0 V); wider availability but lower precision | Choose only for cost-sensitive consumer applications where ±5 % regulation and manual inspection are acceptable |
Compared with BZX8850S-B2V7-QYL, BZX8840S-B2V7 offers higher power but lacks automotive qualification and compactness, while MMSZ4678T1G trades precision and manufacturability for broad distribution-making the QYL variant optimal for space-, reliability-, and process-critical designs.
Availability
BZX8850S-B2V7-QYL is available at Aetrix Electronics and suitable for automotive sensor biasing, portable medical device references, and IoT node voltage clamping requiring stable component supply across production lifecycles.
Supply support for BZX8850S-B2V7-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 efficiency-driven, high-volume analog and logic devices, with leadership in discrete power and logic solutions.
The BZX8850S-Q series belongs to Nexperia's automotive-qualified Zener regulator portfolio, engineered specifically for ultra-low-current, high-precision voltage reference in space-constrained and thermally sensitive applications.
FAQ
What is the maximum reverse voltage before breakdown for BZX8850S-B2V7-QYL?
The device exhibits a sharp Zener breakdown onset between 2.65 V and 2.75 V at IZ = 50 µA. Below 2.65 V, reverse current remains ≤1.0 µA at 2.0 V; no defined "maximum non-breakdown voltage" is specified-the rated working voltage range is defined solely by its Zener characteristics.
Can BZX8850S-B2V7-QYL be used in forward conduction mode?
Yes-it functions as a silicon diode with ≤0.9 V forward voltage at 10 mA. However, its primary design intent is reverse-bias Zener regulation; forward use is limited to clamping or low-current steering where its 200 mA absolute maximum forward current and thermal constraints apply.
Is the cathode marking visible after reflow soldering?
Yes-the cathode is indicated by a laser-marked bar on the top surface of the DFN1006BD-2 package. Side-wettable flanks preserve mark visibility, and the marking remains legible post-reflow for AOI verification per IPC-A-610 Rev H Class 3 requirements.
How does the B-series differ from the C-series in the BZX8850S-Q family?
The B-series (e.g., BZX8850S-B2V7-QYL) has tighter ±2 % tolerance; the C-series has approximately ±5 % tolerance. Both share identical package, power rating, and AEC-Q101 qualification, but B-series is selected where voltage accuracy directly impacts system-level measurement fidelity.
BZX8850S-B2V7-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):
- 2.7 V
- Tolerance:
- ±2%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 1 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
BZX8850S-B2V7-QYL FAQ
1.How can I place an order for BZX8850S-B2V7-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850S-B2V7-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-B2V7-QYL reliable?
The price and inventory of BZX8850S-B2V7-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-B2V7-QYL is usually 5 days.
3.What payment methods are accepted for BZX8850S-B2V7-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850S-B2V7-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850S-B2V7-QYL?
BZX8850S-B2V7-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850S-B2V7-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-B2V7-QYL?
For technical support, including BZX8850S-B2V7-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850S-B2V7-QYL requirements.
6.How does Aetrix verify that BZX8850S-B2V7-QYL is sourced from the original manufacturer or authorized distributors?
All BZX8850S-B2V7-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-B2V7-QYL meets industry standards.
7.What is the process for return or replacement of BZX8850S-B2V7-QYL?
All BZX8850S-B2V7-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850S-B2V7-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-B2V7-QYL part is unused and in its original packaging.
Return procedure for BZX8850S-B2V7-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850S-B2V7-QYL Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
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