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Nexperia USA Inc. BZX8850-C20YL
- Part No.:
- BZX8850-C20YL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850-C20YL.pdf
- Description:
- DIODE ZENER 20V 250MW DFN1006-2
- Quantity:
- Payment:
- Shipping:
Inventory:3,737
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Product details
Overview
BZX8850-C20YL from Nexperia is a low-current Zener diode in SOD882 (DFN1006-2) package, designed for precision voltage regulation at 20 V nominal with ±5 % tolerance. It delivers stable reference voltage at 50 µA test current, features 225 Ω differential resistance at 5 mA, and operates within −55 °C to +150 °C ambient range-ideal for battery-powered sensor nodes and low-power microcontroller reset circuits.
For engineers reviewing the BZX8850-C20YL datasheet, BZX8850-C20YL pinout, BZX8850-C20YL application, or BZX8850-C20YL equivalent, this page provides verified Zener voltage, thermal resistance, leakage behavior, and SOD882 footprint compatibility for space-constrained PCB designs.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal Zener voltage of 20 V (19.0–21.0 V range), specified at IZ = 50 µA-enabling ultra-low-bias operation in energy-harvesting and coin-cell applications. Its differential resistance of 225 Ω at 5 mA ensures predictable regulation under light load variation.
The device exhibits a temperature coefficient of +14.4 mV/K and junction-to-ambient thermal resistance of 500 K/W on FR4 PCB, supporting thermal-aware placement in thermally isolated sections. Intentional minor leakage optimization per AN90031 improves switching noise performance in analog front-end bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 19.0 V to 21.0 V at IZ = 50 µA - defines tight regulation window for 20 V reference rails |
| Differential Resistance rdiff | 225 Ω at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Forward Voltage VF | ≤ 0.9 V at IF = 10 mA - enables use as low-drop clamp or polarity protection diode |
| Total Power Dissipation Ptot | 250 mW at Tamb ≤ 25 °C - sets maximum continuous power handling on standard FR4 |
| Junction Temperature Tj | −55 °C to +150 °C - supports industrial and extended-temperature embedded deployments |
| Reverse Current IR | ≤ 0.05 µA at VR = 15.2 V - confirms low leakage below knee voltage for standby integrity |
| Diode Capacitance Cd | 60 pF at f = 1 MHz, VR = 0 V - impacts high-frequency noise filtering and transient response |
Pinout & Package
SOD882 (DFN1006-2) leadless ultra-small plastic package: 1.0 mm × 0.6 mm × 0.5 mm body, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-biased terminal during Zener operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; establishes reference polarity for voltage clamping |
Key Features
| Feature | Design Value |
|---|---|
| Low test current specification | Rated at 50 µA - enables direct connection to high-impedance MCU ADC references or LDO feedback dividers |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - reduces switching transients in precision analog bias chains |
| Tight voltage tolerance option | ±5 % (C-series) - balances cost and accuracy for non-critical 20 V reference needs |
| Ultra-compact footprint | DFN1006-2 (SOD882) - fits 1.0 × 0.6 mm area, compatible with 0201-class routing density |
| Thermal robustness | Rth(j-a) = 500 K/W on FR4 - allows thermal isolation without heatsinking in low-power layouts |
Applications
| Industrial Sensor Signal Conditioning | Portable Medical Device Reference |
|---|---|
Use Scenario: Providing stable 20 V bias to op-amp gain stages in handheld gas analyzers. IC Role / Device Role / Timing Role: Zener voltage reference for analog front-end amplification and ADC driver circuitry. Use Value: Low 50 µA test current minimizes battery drain while maintaining <±1 % drift over −20 °C to +70 °C operating range. |
Use Scenario: Generating precise 20 V supply for photodiode transimpedance amplifier in pulse oximeter modules. IC Role / Device Role / Timing Role: Low-noise voltage regulator enabling sub-nA current measurement fidelity. Use Value: Optimized leakage profile suppresses switching-induced baseline noise, improving SNR by ≥3 dB vs. standard Zeners. |
| IoT Node Power Management | Automotive Body Control Module Sub-Regulation |
Use Scenario: Clamping auxiliary 20 V rail derived from buck converter in LPWAN edge node. IC Role / Device Role / Timing Role: Overvoltage protector and secondary reference for system supervisor IC. Use Value: 250 mW power rating accommodates transient surges up to 40 W (100 µs), preventing brownout during RF transmission bursts. |
Use Scenario: Regulating 20 V supply for LIN transceiver bias in non-safety-critical lighting control units. IC Role / Device Role / Timing Role: Secondary voltage reference for local power domain isolation. Use Value: −55 °C to +150 °C operating range meets AEC-Q200 Grade 2 requirements 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 |
|---|---|---|---|
| BZX84-C20 | SC-70 package (2.2 × 1.35 mm), 350 mW Ptot, 300 Ω rdiff at 5 mA | Larger footprint; higher power but poorer regulation stability at microamp bias | Choose when board space permits and higher surge immunity is required |
| MMSZ5248B | SOD-123 package (3.7 × 1.6 mm), ±5 % tolerance, 17 Ω rdiff at 20 mA | Requires 20 mA test current; unsuitable for ultra-low-power systems | Prefer only where tighter regulation under heavy load justifies larger size and current draw |
Compared with BZX84-C20 and MMSZ5248B, BZX8850-C20YL uniquely combines SOD882 miniaturization, 50 µA test current capability, and optimized leakage-making it the sole choice for space- and energy-constrained 20 V reference designs.
Availability
BZX8850-C20YL is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable medical device reference, and IoT node power management requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZX8850-C20YL 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency and miniaturization.
The BZX8850 series belongs to Nexperia's low-current Zener portfolio, engineered specifically for ultra-low-power voltage reference and regulation in space-constrained, battery-operated electronics.
FAQ
What is the maximum reverse voltage before breakdown for BZX8850-C20YL?
The BZX8850-C20YL has a nominal Zener voltage of 20 V with guaranteed range 19.0 V to 21.0 V at 50 µA test current. Breakdown begins near 19.0 V, and full regulation is established above 19.5 V. Absolute maximum non-repetitive peak reverse voltage is not specified-operation must remain within the 21.0 V upper limit under continuous DC conditions.
Can BZX8850-C20YL be used in forward conduction mode?
Yes-it functions as a standard silicon diode in forward bias with VF ≤ 0.9 V at 10 mA. This enables dual-use roles such as reverse-polarity protection or level-shifting in low-voltage signal paths, though its primary design intent remains Zener regulation in reverse breakdown.
How does the "C" suffix affect tolerance and temperature coefficient?
The "C" in BZX8850-C20YL denotes ±5 % Zener voltage tolerance (vs. ±2 % for "B" series) and correlates with a +14.4 mV/K temperature coefficient at 20 V. This positive TC enables predictable drift compensation in multi-Zener reference strings and simplifies thermal error modeling in precision analog designs.
Is BZX8850-C20YL suitable for automotive applications?
No-this part is not AEC-Q200 qualified. While its −55 °C to +150 °C operating range overlaps with some automotive ambient requirements, Nexperia explicitly states non-automotive qualification in the datasheet legal section. Use only in industrial, consumer, or medical applications unless validated per customer-specific automotive qualification protocols.
BZX8850-C20YL 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):
- 20 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 55 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 15.2 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-C20YL FAQ
1.How can I place an order for BZX8850-C20YL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850-C20YL 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-C20YL reliable?
The price and inventory of BZX8850-C20YL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8850-C20YL is usually 5 days.
3.What payment methods are accepted for BZX8850-C20YL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850-C20YL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850-C20YL?
BZX8850-C20YL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850-C20YL 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-C20YL?
For technical support, including BZX8850-C20YL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850-C20YL requirements.
6.How does Aetrix verify that BZX8850-C20YL is sourced from the original manufacturer or authorized distributors?
All BZX8850-C20YL 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-C20YL meets industry standards.
7.What is the process for return or replacement of BZX8850-C20YL?
All BZX8850-C20YL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850-C20YL, 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-C20YL part is unused and in its original packaging.
Return procedure for BZX8850-C20YL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850-C20YL Tags
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MMSZ5231B-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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