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Nexperia USA Inc. BZX8850-B11YL
- Part No.:
- BZX8850-B11YL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850-B11YL.pdf
- Description:
- DIODE ZENER 11V 250MW DFN1006-2
- Quantity:
- Payment:
- Shipping:
Inventory:6,503
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Product details
Overview
BZX8850-B11YL from Nexperia is a low-current Zener diode in SOD882 (DFN1006-2) package, designed for precision voltage regulation at 11 V nominal with ±2 % tolerance. It delivers stable 11.0 V regulation at 50 μA test current, exhibits 8.4 V forward voltage at 10 mA, and supports ≤250 mW total power dissipation on FR4 PCB. It is used in battery-powered sensor biasing, low-power reference generation, and portable device voltage clamping.
For engineers reviewing the BZX8850-B11YL datasheet, BZX8850-B11YL pinout, BZX8850-B11YL application, or BZX8850-B11YL equivalent, key selection criteria include its 11 V nominal Zener voltage, ±2 % tolerance, ultra-small DFN1006-2 footprint, 50 μA regulation test current, and intentional leakage optimization for noise reduction per AN90031.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable 11.0 V reference under low-bias conditions. Its differential resistance is 150 Ω at 5 mA, and temperature coefficient is +5.4 mV/K - indicating positive drift with junction temperature rise.
It features intentionally elevated leakage current versus standard Zeners to improve switching speed and reduce noise in sensitive analog circuits. The device is rated for 150 °C maximum junction temperature and exhibits 500 K/W thermal resistance from junction to ambient on standard FR4 PCB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 11.0 V nominal, ±2 % tolerance (10.8–11.2 V range), specified at IZ = 50 μA |
| Forward Voltage VF | 0.9 V max at IF = 10 mA - ensures low conduction loss in series protection configurations |
| Total Power Dissipation | 250 mW max at Tamb ≤ 25 °C on single-sided FR4 PCB - defines safe continuous operating envelope |
| Differential Resistance rdiff | 150 Ω max at IZ = 5 mA - quantifies voltage regulation stiffness under load variation |
| Temperature Coefficient SZ | +5.4 mV/K - enables predictable voltage drift compensation in temperature-stable references |
| Reverse Current IR | 0.05 μA max at VR = 8.4 V - confirms sharp knee and low leakage below regulation threshold |
| Diode Capacitance Cd | 85 pF at f = 1 MHz, VR = 0 V - impacts high-frequency noise filtering and transient response |
Pinout & Package
Package: SOD882 (DFN1006-2), leadless ultra-small surface-mount plastic package; dimensions 1.0 × 0.6 × 0.5 mm; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; polarity marker determines correct orientation in shunt regulator topology |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current regulation | Specified at 50 μA - enables use in microamp-level bias networks without loading error |
| Tight voltage tolerance | ±2 % (B-series) - supports precision reference designs where 11.0 V stability is critical |
| Optimized leakage profile | Intentional minor rise per AN90031 - reduces switching noise and improves transient response vs. standard Zeners |
| Ultra-compact footprint | SOD882 (DFN1006-2) - saves board space in wearables, IoT sensors, and miniaturized power rails |
| Thermal robustness | 150 °C max junction temperature - supports operation in sealed enclosures or high-ambient environments |
Applications
| Portable Sensor Biasing | Low-Power Reference Generation |
|---|---|
Use Scenario: Providing stable bias voltage to MEMS accelerometers and analog front-end ICs in battery-operated wearables. IC Role / Device Role / Timing Role: Shunt Zener regulator establishing fixed 11 V reference for signal conditioning circuitry. Use Value: 50 μA test current minimizes quiescent drain; ±2 % tolerance ensures ADC input scaling accuracy within 0.22 V. |
Use Scenario: Generating a precise 11 V reference for op-amp-based voltage comparators in energy-harvesting nodes. IC Role / Device Role / Timing Role: Passive voltage reference element in high-impedance divider networks feeding comparator inputs. Use Value: +5.4 mV/K temperature coefficient allows predictable drift compensation; 150 Ω rdiff maintains regulation under 100 μA load shifts. |
| USB-C Port Voltage Clamping | IoT Node Power-Rail Protection |
Use Scenario: Clamping transient overvoltage on 12 V auxiliary rails in USB-C PD sink adapters during hot-plug events. IC Role / Device Role / Timing Role: Fast-response shunt clamp limiting peak voltage to 11.2 V before downstream LDOs saturate. Use Value: Optimized leakage profile enables sub-100 ns response to ESD-like transients; 40 W non-repetitive surge rating handles short pulses. |
Use Scenario: Protecting 3.3 V/5 V mixed-signal SoCs in LPWA modules against supply rail overshoot during battery insertion or charger switching. IC Role / Device Role / Timing Role: Standby-mode Zener clamp placed across main power rail to absorb brief overvoltage excursions. Use Value: 250 mW power rating sustains clamping for >10 ms at 11.2 V; 85 pF capacitance avoids RF coupling into sensitive RF sections. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C11 | ±5 % tolerance, SOT-23 package (2.9 × 1.3 × 1.0 mm), 350 mW Ptot, higher rdiff (200 Ω) | Less precise regulation; larger footprint limits high-density layouts; higher power suits higher-current loads | Select when cost sensitivity outweighs tolerance and size requirements, and 5 % error is acceptable in reference design |
| MMSZ5240B | ±5 % tolerance, SOD-123 package (3.7 × 1.6 × 1.1 mm), 500 mW Ptot, 11 V nominal, 170 Ω rdiff | Higher power handling but larger size; no intentional leakage optimization for noise reduction | Choose for legacy board compatibility or when higher surge capability is required, but not for low-noise analog biasing |
Compared with BZX8850-B11YL, BZX84-C11 trades precision and miniaturization for cost and power margin, while MMSZ5240B offers greater surge resilience at the expense of board area and noise performance - making BZX8850-B11YL optimal for space-constrained, low-noise, precision-shunt applications.
Availability
BZX8850-B11YL is available at Aetrix Electronics and suitable for portable sensor biasing, low-power reference generation, and IoT node power-rail protection requiring stable component supply across high-mix, low-volume production runs.
Supply support for BZX8850-B11YL 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 solutions, headquartered in Nijmegen, Netherlands.
The BZX8850 series belongs to Nexperia's precision low-current Zener portfolio, engineered specifically for battery-powered and space-constrained applications demanding tight voltage tolerance, minimal bias current, and optimized noise behavior.
FAQ
What is the exact Zener voltage tolerance and test condition for BZX8850-B11YL?
BZX8850-B11YL has a nominal Zener voltage of 11.0 V with ±2 % tolerance (10.8 V to 11.2 V), strictly defined at a test current of 50 μA and Tj = 25 °C. This low-current specification ensures accurate regulation in micro-power circuits without introducing significant loading error.
Does BZX8850-B11YL support operation above 125 °C ambient temperature?
Yes - BZX8850-B11YL is rated for ambient temperatures from −55 °C to +150 °C and junction temperatures up to 150 °C. Its thermal resistance of 500 K/W on standard FR4 requires derating above 25 °C ambient; at 100 °C ambient, maximum allowable power drops to ~125 mW to maintain Tj ≤ 150 °C.
How does the "intentional minor rise of leakage current" affect circuit performance?
This feature, documented in AN90031, slightly increases reverse leakage near the Zener knee to accelerate carrier recombination, reducing switching time and high-frequency noise. In practice, it improves transient response in clamping applications and lowers broadband noise in reference circuits - without compromising DC regulation accuracy.
Can BZX8850-B11YL be used in parallel for higher power dissipation?
No - Zener diodes exhibit negative temperature coefficients and mismatched VZ tolerances, causing current hogging when paralleled. Even with matched units, thermal runaway risk remains high. For higher power, select a single higher-rated Zener (e.g., BZX85 series) or implement active regulation instead.
BZX8850-B11YL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX8850
- Package/Case:
- SOD-882
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 8.4 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006-2
BZX8850-B11YL FAQ
1.How can I place an order for BZX8850-B11YL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850-B11YL 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 BZX8850-B11YL reliable?
The price and inventory of BZX8850-B11YL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8850-B11YL is usually 5 days.
3.What payment methods are accepted for BZX8850-B11YL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850-B11YL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850-B11YL?
BZX8850-B11YL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850-B11YL 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 BZX8850-B11YL?
For technical support, including BZX8850-B11YL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850-B11YL requirements.
6.How does Aetrix verify that BZX8850-B11YL is sourced from the original manufacturer or authorized distributors?
All BZX8850-B11YL 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 BZX8850-B11YL meets industry standards.
7.What is the process for return or replacement of BZX8850-B11YL?
All BZX8850-B11YL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850-B11YL, 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 BZX8850-B11YL part is unused and in its original packaging.
Return procedure for BZX8850-B11YL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850-B11YL 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
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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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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