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Nexperia USA Inc. BZX8850S-C3V6-QYL
- Part No.:
- BZX8850S-C3V6-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850S-C3V6-QYL.pdf
- Description:
- DIODE ZENER 3.6V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:7,642
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Product details
Overview
BZX8850S-C3V6-QYL from Nexperia is a low-current Zener voltage regulator diode in the BZX8850S-Q series, designed for precision biasing and voltage reference in space-constrained, battery-powered systems. It delivers a nominal 3.6 V regulation at 50 µA test current, with ±2 % tolerance (C-series), 95 Ω dynamic resistance at 5 mA, and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZX8850S-C3V6-QYL datasheet, BZX8850S-C3V6-QYL pinout, BZX8850S-C3V6-QYL application, or BZX8850S-C3V6-QYL equivalent, this device is selected for ultra-low quiescent current regulation, ESD-robust signal-level clamping, and stable reference generation in portable instrumentation and automotive sensor interfaces.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified working voltage of 3.42 V to 3.78 V at IZ = 50 µA, exhibiting a temperature coefficient of −3.5 mV/K and diode capacitance of 160 pF at 0 V. Its low 50 µA test current enables operation in micro-power circuits where traditional Zeners would draw excessive bias current.
The device uses a planar silicon junction structure housed in a DFN1006BD-2 (SOD882BD) package with side-wettable flanks for automated optical solder-joint inspection. It supports non-repetitive surge power up to 40 W (100 µs pulse) and maintains stable regulation across −55 °C to +150 °C ambient range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 3.6 V - Precise regulation point at 50 µA, enabling accurate low-current reference design |
| Voltage Tolerance | ±2 % - Tight tolerance ensures minimal unit-to-unit variation in voltage-sensitive analog circuits |
| Differential Resistance | 95 Ω at IZ = 5 mA - Low impedance improves load regulation and noise rejection in reference paths |
| Forward Voltage | 0.9 V at IF = 10 mA - Enables predictable forward conduction for dual-direction clamping applications |
| Total Power Dissipation | 365 mW at Tamb ≤ 25 °C - Sufficient headroom for transient overvoltage handling on standard FR4 PCB |
| Junction Temperature Limit | 150 °C - Supports operation in under-hood automotive environments without derating |
| Reverse Leakage Current | 2.0 µA max at VR = 3.0 V - Ultra-low leakage preserves battery life in always-on monitoring circuits |
Pinout & Package
Package: DFN1006BD-2 (SOD882BD), ultra-small leadless surface-mount package measuring 1.0 mm × 0.6 mm × 0.47 mm, with side-wettable flanks for automated AOI-compatible reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked side) | Cathode (K) | Connected to regulated output node; polarity marking bar identifies cathode for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reverse-biased junction for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD (HBM ≥ 2 kV) |
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints without X-ray, reducing manufacturing defect escape |
| Low 50 µA test current | Minimizes standby current draw in battery-operated devices such as tire pressure sensors and remote key fobs |
| Optimized leakage profile | Intentional minor rise in IR improves switching speed and reduces high-frequency noise in feedback loops |
| Thermal resistance | 340 K/W (junction-to-ambient, FR4 PCB) - Enables thermal predictability in dense layout without heatsinking |
Applications
| Automotive Cabin Sensors | Portable Medical Monitors |
|---|---|
|
Use Scenario: Voltage reference for analog front-end of seat occupancy or cabin air quality sensors. IC Role / Device Role / Timing Role: Zener reference diode providing stable 3.6 V bias to op-amp input stages and ADC reference dividers. Use Value: ±2 % tolerance and −3.5 mV/K TC ensure <±10 mV drift over −40 °C to +85 °C, meeting ASIL-B functional safety margin requirements. |
Use Scenario: Low-power voltage clamp in wearable ECG electrode interface circuitry. IC Role / Device Role / Timing Role: Reverse-biased protection element limiting input transients to <4 V while drawing <2 µA at 3 V bias. Use Value: 160 pF capacitance and 95 Ω dynamic impedance preserve signal integrity up to 10 kHz without distorting biopotential waveforms. |
| Smart Meter Battery Backup | Industrial IoT Node Regulator |
|
Use Scenario: Precision reference for real-time clock (RTC) power-fail detection during main supply interruption. IC Role / Device Role / Timing Role: Zener shunt regulator maintaining 3.6 V on RTC backup rail powered by coin cell. Use Value: 50 µA test current allows full regulation down to 1.8 V supply headroom, extending CR2032 battery life beyond 5 years. |
Use Scenario: Voltage stabilization for LoRaWAN sub-GHz transceiver bias rails in edge-node sensor hubs. IC Role / Device Role / Timing Role: Local regulation source for RF amplifier bias, decoupling digital noise from analog supply. Use Value: 365 mW power rating and 150 °C junction limit support continuous operation in sealed enclosures up to 70 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX8850S-B3V6-Q | ±5 % tolerance (vs. ±2 %), higher rdiff = 600 Ω at 5 mA | Acceptable for non-critical biasing where cost sensitivity outweighs precision | Select when budget constraints dominate and 3.42–3.78 V range is sufficient |
| MMSZ4685T1G | Same 3.6 V nominal, but SOD-123 package (1.8 × 1.4 mm), 500 mW Ptot, no AEC-Q101 | Suitable for industrial PCBs with larger footprints and no automotive qualification requirement | Choose when board space permits larger package and automotive compliance is not mandated |
Compared with BZX8850S-C3V6-QYL, the BZX8850S-B3V6-Q trades precision for cost, while MMSZ4685T1G offers higher power handling in a less compact, non-automotive-qualified form factor-making the C3V6-QYL optimal for space- and qualification-constrained designs.
Availability
BZX8850S-C3V6-QYL is available at Aetrix Electronics and suitable for automotive cabin sensing, portable medical monitoring, and smart utility metering requiring stable component supply across extended product lifecycles.
Supply support for BZX8850S-C3V6-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 discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
The BZX8850S-Q series belongs to Nexperia's AEC-Q101-qualified Zener portfolio, engineered specifically for low-power, high-stability voltage reference and clamping in next-generation automotive and portable electronics.
FAQ
What is the maximum reverse voltage before breakdown for BZX8850S-C3V6-QYL?
The device exhibits a sharp Zener breakdown between 3.42 V and 3.78 V at IZ = 50 µA, with no defined "maximum reverse voltage" prior to breakdown-it is designed to operate continuously in reverse breakdown. The absolute maximum reverse voltage is limited only by the non-repetitive peak power rating of 40 W for 100 µs pulses.
Can BZX8850S-C3V6-QYL be used in forward-bias applications?
Yes-the forward voltage is specified at 0.9 V @ 10 mA, making it suitable for low-drop rectification or polarity protection in ultra-low-power circuits. However, its primary design intent and characterization focus is reverse-bias Zener regulation, not forward conduction efficiency.
Is the DFN1006BD-2 package compatible with standard reflow profiles?
Yes-Nexperia provides validated reflow soldering footprint data (Fig. 10) and qualifies the package for JEDEC J-STD-020 moisture sensitivity level 1. The side-wettable flanks support IPC-A-610 Class 2/3 solder joint acceptance using standard SnPb or lead-free profiles.
How does the −3.5 mV/K temperature coefficient affect long-term stability?
This negative coefficient means output voltage decreases by 3.5 mV per °C rise in junction temperature. Over a 100 °C range (−40 °C to +60 °C), total drift is ~350 mV-within the ±2 % tolerance band (±72 mV) only if self-heating is minimized via low IZ operation and proper thermal layout.
BZX8850S-C3V6-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):
- 3.6 V
- Tolerance:
- ±5%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 7.5 µA @ 2 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-C3V6-QYL FAQ
1.How can I place an order for BZX8850S-C3V6-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850S-C3V6-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-C3V6-QYL reliable?
The price and inventory of BZX8850S-C3V6-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-C3V6-QYL is usually 5 days.
3.What payment methods are accepted for BZX8850S-C3V6-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850S-C3V6-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850S-C3V6-QYL?
BZX8850S-C3V6-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850S-C3V6-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-C3V6-QYL?
For technical support, including BZX8850S-C3V6-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850S-C3V6-QYL requirements.
6.How does Aetrix verify that BZX8850S-C3V6-QYL is sourced from the original manufacturer or authorized distributors?
All BZX8850S-C3V6-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-C3V6-QYL meets industry standards.
7.What is the process for return or replacement of BZX8850S-C3V6-QYL?
All BZX8850S-C3V6-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850S-C3V6-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-C3V6-QYL part is unused and in its original packaging.
Return procedure for BZX8850S-C3V6-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850S-C3V6-QYL Tags
-
MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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