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Nexperia USA Inc. BZX8850S-B36-QYL
- Part No.:
- BZX8850S-B36-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850S-B36-QYL.pdf
- Description:
- DIODE ZENER 36V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:2,651
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Product details
Overview
BZX8850S-B36-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 36 V Zener voltage at 50 µA test current, with ±2 % tolerance (B-series), 350 Ω differential resistance at 5 mA, and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZX8850S-B36-QYL datasheet, BZX8850S-B36-QYL pinout, BZX8850S-B36-QYL application, or BZX8850S-B36-QYL equivalent, key selection criteria include low-bias operation at 50 µA, side-wettable DFN1006BD-2 package for automated optical inspection, thermal resistance of 340 K/W on FR4, and intentional leakage optimization for noise-sensitive analog rails.
Technical Context
This device operates as a two-terminal shunt regulator, maintaining stable reverse breakdown voltage across its cathode-anode terminals under controlled bias conditions. Its electrical behavior is defined by tight VZ tolerance (±2 %), low test current specification (50 µA), and optimized leakage characteristics per AN90031 for fast switching and reduced noise coupling.
The SOD882BD (DFN1006BD-2) package enables high-density PCB layouts with side-wettable flanks for solder joint inspection, while thermal performance is characterized by Rth(j-a) = 340 K/W on single-sided tin-plated FR4 - critical for thermal management in compact automotive modules and portable electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ (nominal) | 36 V at IZ = 50 µA - sets precise reference point for low-power bias networks |
| VZ tolerance | ±2 % (B-series) - ensures predictable regulation without post-calibration |
| rdiff | 350 Ω at IZ = 5 mA - defines output impedance affecting load regulation error |
| Ptot | 365 mW at Tamb ≤ 25 °C - limits continuous power in thermally constrained layouts |
| Rth(j-a) | 340 K/W - determines junction temperature rise under ambient PCB conditions |
| IR @ VR = 28.8 V | ≤ 0.05 µA - confirms low leakage below knee voltage for standby efficiency |
| Cd | 45 pF at VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering capability |
Pinout & Package
Package: DFN1006BD-2 (SOD882BD), ultra-small leadless surface-mount plastic package measuring 1.0 mm × 0.6 mm × 0.47 mm with side-wettable flanks and cathode marking bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated voltage node; marking bar identifies this terminal for orientation during placement |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints without X-ray |
| Low 50 µA test current | Supports battery-powered systems where quiescent current must remain sub-100 µA |
| Optimized leakage profile | Intentional minor IR increase improves transient response and reduces broadband noise in analog references |
| Ultra-small footprint | 0.65 mm pitch and 0.6 mm width allow placement in <1 mm² board area |
Applications
| Automotive Cabin Sensors | Portable Medical Monitors |
|---|---|
Use Scenario: Voltage reference for MEMS pressure and humidity sensors in HVAC control modules. IC Role / Device Role / Timing Role: Shunt regulator providing stable 36 V bias to sensor excitation circuitry. Use Value: ±2 % VZ tolerance eliminates need for trimming resistors; AEC-Q101 compliance ensures operation across −40 °C to +125 °C ambient. | Use Scenario: Reference supply for low-power ADC front-ends in handheld ECG devices. IC Role / Device Role / Timing Role: Precision Zener source enabling accurate 12-bit analog-to-digital conversion. Use Value: 50 µA test current minimizes battery drain; 45 pF capacitance avoids signal integrity degradation at sampling frequencies up to 100 kHz. |
| Industrial IoT Edge Nodes | Smart Meter Power Rails |
Use Scenario: Regulation of auxiliary 36 V rail powering LoRaWAN transceiver bias networks. IC Role / Device Role / Timing Role: Low-noise voltage clamp protecting RF IC supply against transient overvoltage. Use Value: Optimized leakage profile suppresses switching noise coupling into sensitive RF paths; DFN1006BD-2 footprint saves space on multi-layer meter PCBs. | Use Scenario: Overvoltage protection and reference generation for metrology ASIC power domains. IC Role / Device Role / Timing Role: Dual-function device acting as both surge clamp and precision reference. Use Value: 350 Ω rdiff ensures stable regulation under varying load currents; 365 mW Ptot supports brief surge events without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX8850S-C36-Q | ±5 % VZ tolerance, higher max IR (0.1 µA), same package and thermal specs | Suitable for non-critical biasing where cost sensitivity outweighs precision | Select when ±5 % regulation accuracy is acceptable and leakage margin is not required |
| MMSZ5245B-7-F | 36 V nominal, ±5 %, SOD-123 package (2.7 mm × 1.6 mm), 500 mW Ptot, no AEC-Q101 | Larger footprint, higher power, no automotive qualification | Choose only for non-automotive industrial designs requiring higher dissipation and legacy footprint compatibility |
Compared with BZX8850S-C36-Q, the BZX8850S-B36-QYL offers tighter tolerance and lower leakage for precision analog rails; versus MMSZ5245B-7-F, it trades package size and power for AEC-Q101 compliance and AOI-friendly construction - making it optimal for next-gen automotive and portable electronics where miniaturization and reliability are co-prioritized.
Availability
BZX8850S-B36-QYL is available at Aetrix Electronics and suitable for automotive cabin sensors, portable medical monitors, and industrial IoT edge nodes requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZX8850S-B36-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-enhancing components, delivering high-performance, reliable, and scalable solutions for automotive, industrial, and consumer markets.
The BZX8850S-Q series belongs to Nexperia's precision Zener diode product line, engineered specifically for low-current, high-reliability voltage regulation in space-constrained and automotive-qualified applications.
FAQ
What is the maximum reverse voltage before breakdown for BZX8850S-B36-QYL?
The device exhibits a nominal Zener voltage of 36 V at 50 µA test current, with guaranteed minimum and maximum values of 35.3 V and 36.7 V respectively. Breakdown begins gradually above ~28.8 V (80 % of nominal), but stable regulation occurs only within the specified 35.3 V–36.7 V range under defined current conditions.
Does BZX8850S-B36-QYL require a series resistor in all applications?
Yes - a current-limiting resistor is mandatory to set the operating current within the 50 µA to 200 mA range. Without it, excessive current causes thermal runaway. Typical designs use 10 kΩ–100 kΩ for low-bias applications and 1 kΩ–10 kΩ for higher-current regulation, calculated using (VIN − VZ) / IZ.
Can BZX8850S-B36-QYL be used in parallel for higher power handling?
No - Zener diodes exhibit manufacturing variations in VZ that cause current imbalance when paralleled, leading to thermal instability and premature failure. For higher power, use a single higher-rated device or implement active regulation with a transistor-based shunt amplifier.
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, positioned adjacent to pin 1. This marking is fully compatible with standard AOI systems due to the side-wettable flank design, which ensures solder fillet visibility without requiring X-ray verification.
BZX8850S-B36-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):
- 36 V
- Tolerance:
- ±2%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 27.3 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-B36-QYL FAQ
1.How can I place an order for BZX8850S-B36-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850S-B36-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-B36-QYL reliable?
The price and inventory of BZX8850S-B36-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-B36-QYL is usually 5 days.
3.What payment methods are accepted for BZX8850S-B36-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850S-B36-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850S-B36-QYL?
BZX8850S-B36-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850S-B36-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-B36-QYL?
For technical support, including BZX8850S-B36-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850S-B36-QYL requirements.
6.How does Aetrix verify that BZX8850S-B36-QYL is sourced from the original manufacturer or authorized distributors?
All BZX8850S-B36-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-B36-QYL meets industry standards.
7.What is the process for return or replacement of BZX8850S-B36-QYL?
All BZX8850S-B36-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850S-B36-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-B36-QYL part is unused and in its original packaging.
Return procedure for BZX8850S-B36-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850S-B36-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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