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Nexperia USA Inc. BZX8850S-C8V2-QYL
- Part No.:
- BZX8850S-C8V2-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850S-C8V2-QYL.pdf
- Description:
- DIODE ZENER 8.2V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:9,900
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Product details
Overview
BZX8850S-C8V2-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 8.2 V Zener voltage at 50 µA test current, with ±2 % tolerance (C-series), 80 Ω differential resistance at 5 mA, and 3.2 mV/K temperature coefficient - enabling stable biasing in automotive sensor interfaces and portable battery-powered systems.
For engineers reviewing the BZX8850S-C8V2-QYL datasheet, BZX8850S-C8V2-QYL pinout, BZX8850S-C8V2-QYL application, or BZX8850S-C8V2-QYL equivalent, key selection criteria include its ultra-small DFN1006BD-2 (SOD882BD) package with side-wettable flanks, AEC-Q101 qualification, low 50 µA regulation current, and intentional leakage optimization for noise-sensitive analog front-ends.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable 8.2 V reference across load and supply variations, specified at IZ = 50 µA - making it suitable for micropower bias networks where quiescent current must remain below 100 µA. Its differential resistance of 80 Ω at 5 mA ensures minimal voltage shift under moderate dynamic loading.
The device features an intentionally elevated reverse leakage current (per AN90031) to improve switching speed and reduce high-frequency noise in signal conditioning paths. Its thermal resistance of 340 K/W (junction-to-ambient, FR4 PCB) and 150 °C max junction temperature support operation in automotive under-hood environments when properly derated.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.79 V to 8.61 V at IZ = 50 µA - tight ±2 % tolerance enables accurate voltage setting without trimming. |
| Differential Resistance (rdiff) | 80 Ω at IZ = 5 mA - low impedance maintains regulation stability under small-signal load transients. |
| Temperature Coefficient (SZ) | +3.2 mV/K - positive drift compensates for typical IC reference drift, improving system-level temperature stability. |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - enables use as low-drop rectifier or clamping diode in dual-role circuits. |
| Max Power Dissipation (Ptot) | 365 mW at Tamb ≤ 25 °C - supports continuous operation up to ~44 mA at 8.2 V on standard FR4 PCB. |
| Reverse Current (IR) | ≤ 0.1 µA at VR = 6.2 V - ultra-low leakage preserves battery life in always-on monitoring nodes. |
| Junction Temperature (Tj) | −55 °C to +150 °C - AEC-Q101 qualified for under-dash and engine-control module deployment. |
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 optical solder-joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (marked side) | Cathode (K) | Connected to regulated output node; reverse-biased during Zener operation; marking bar identifies this terminal. |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for voltage regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Low test current regulation | Specified at 50 µA - reduces standby power in battery-backed real-time clocks and sensor bias networks. |
| AEC-Q101 qualification | Qualified for automotive applications - meets stress-test requirements for temperature cycling, HTRB, and ESD robustness. |
| Side-wettable flanks (SWF) | Enables automated X-ray and AOI inspection of solder joints - critical for high-reliability automotive PCB assembly. |
| Optimized leakage profile | Intentional minor rise in IR per AN90031 - improves transient response and suppresses broadband noise in ADC reference buffers. |
| Ultra-compact footprint | 0.65 mm pitch, 0.6 mm width - fits within dense routing zones of wearables and compact ECUs without compromising thermal margin. |
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: Zener regulator providing stable 8.2 V bias to sensor signal-conditioning op-amps and ADC drivers. Use Value: ±2 % tolerance and +3.2 mV/K TC minimize calibration drift over −40 °C to +125 °C ambient range. |
Use Scenario: Low-power reference in wearable ECG front-end with coin-cell battery supply. IC Role / Device Role / Timing Role: Precision shunt regulator establishing clean 8.2 V rail for analog signal chain and microcontroller I/O protection. Use Value: 50 µA regulation current extends battery life beyond 3 years in intermittent-sampling mode. |
| Industrial IoT Edge Nodes | Smart Meter Analog Front-Ends |
Use Scenario: Bias voltage source for isolated RS-485 transceiver biasing and level-shifting circuitry. IC Role / Device Role / Timing Role: Low-noise Zener reference stabilizing VCC for isolated power domains in LPWAN gateways. Use Value: Optimized leakage profile reduces switching noise coupling into sensitive UART and SPI lines. |
Use Scenario: Reference for metrology-grade sigma-delta ADCs measuring AC mains voltage and current. IC Role / Device Role / Timing Role: Shunt regulator supplying stable 8.2 V to precision voltage dividers and anti-aliasing filters. Use Value: 80 Ω rdiff limits voltage error to <±1.6 mV under 20 µA load variation - meeting Class 0.2 accuracy requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX8850S-B8V2-Q | ±5 % tolerance (B-series), 160 Ω rdiff at 5 mA, lower leakage (<0.1 µA at 6.2 V) | Suitable for non-critical biasing where cost sensitivity outweighs precision; less effective for noise reduction | Select when budget constraints dominate and ±5 % regulation is acceptable for the system's ADC full-scale range |
| MMSZ5236BT1G | ±5 % tolerance, SOD-123 package (2.7 mm × 1.6 mm), 100 Ω rdiff, no AEC-Q101 qualification | Larger footprint, not automotive-qualified; higher thermal resistance (~400 K/W) limits power handling on dense PCBs | Choose only for non-automotive industrial designs where board area is not constrained and AEC compliance is unnecessary |
Compared with BZX8850S-B8V2-Q and MMSZ5236BT1G, the BZX8850S-C8V2-QYL offers superior voltage accuracy, lower dynamic impedance, and automotive qualification in a 60 % smaller footprint - making it optimal for next-generation compact, safety-aware electronics where regulation stability and manufacturability are co-prioritized.
Availability
BZX8850S-C8V2-QYL is available at Aetrix Electronics and suitable for automotive cabin sensors, portable medical monitors, industrial IoT edge nodes, and smart meter analog front-ends requiring stable component supply with guaranteed long-term continuity.
Supply support for BZX8850S-C8V2-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 precision low-current Zener portfolio, engineered specifically for AEC-Q101-compliant voltage reference and regulation in space- and power-constrained automotive and portable electronics.
FAQ
What is the maximum continuous reverse current the BZX8850S-C8V2-QYL can sustain without degradation?
The device supports a maximum forward current of 200 mA, but for Zener operation, continuous reverse current is limited by power dissipation. At 25 °C ambient on a standard FR4 PCB, Ptot = 365 mW allows up to ~44 mA at 8.2 V. Derating is required above 25 °C per Rth(j-a) = 340 K/W; at 85 °C ambient, max IZ drops to ~27 mA.
How does the "intentional minor rise of leakage current" benefit circuit performance?
Per AN90031, the controlled increase in reverse leakage improves carrier sweep-out speed during turn-off, reducing stored charge and minimizing ringing in fast-switching analog paths. This directly lowers broadband noise in precision ADC references and sensor signal chains - verified in Nexperia's application note using spectral analysis of buffered Zener outputs.
Is the cathode marking visible after reflow soldering on the DFN1006BD-2 package?
Yes - the cathode is indicated by a laser-marked bar on the top surface of the package, positioned adjacent to Pin 1. The DFN1006BD-2 outline (SOD882BD) retains full visibility post-reflow due to its flat, unshaded top surface and side-wettable flank geometry, enabling post-solder AOI verification without X-ray.
Can BZX8850S-C8V2-QYL replace older BZX84-C8V2 in existing designs?
Yes, with layout adaptation: both are 8.2 V ±2 % Zeners, but BZX8850S-C8V2-QYL uses DFN1006BD-2 (1.0 mm × 0.6 mm), while BZX84-C8V2 uses SOT-23 (3.0 mm × 1.4 mm). The smaller footprint requires pad redesign, but offers improved thermal performance (340 vs ~450 K/W) and AEC-Q101 qualification - beneficial for automotive upgrades.
BZX8850S-C8V2-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):
- 8.2 V
- Tolerance:
- ±5%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 6.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006BD-2
BZX8850S-C8V2-QYL FAQ
1.How can I place an order for BZX8850S-C8V2-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850S-C8V2-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-C8V2-QYL reliable?
The price and inventory of BZX8850S-C8V2-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-C8V2-QYL is usually 5 days.
3.What payment methods are accepted for BZX8850S-C8V2-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850S-C8V2-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850S-C8V2-QYL?
BZX8850S-C8V2-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850S-C8V2-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-C8V2-QYL?
For technical support, including BZX8850S-C8V2-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850S-C8V2-QYL requirements.
6.How does Aetrix verify that BZX8850S-C8V2-QYL is sourced from the original manufacturer or authorized distributors?
All BZX8850S-C8V2-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-C8V2-QYL meets industry standards.
7.What is the process for return or replacement of BZX8850S-C8V2-QYL?
All BZX8850S-C8V2-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850S-C8V2-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-C8V2-QYL part is unused and in its original packaging.
Return procedure for BZX8850S-C8V2-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850S-C8V2-QYL Tags
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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
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
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SMAZ12-13-F
Diodes Incorporated
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