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Nexperia USA Inc. BZX8850-C1V8YL
- Part No.:
- BZX8850-C1V8YL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850-C1V8YL.pdf
- Description:
- DIODE ZENER 1.8V 250MW DFN1006-2
- Quantity:
- Payment:
- Shipping:
Inventory:5,857
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Product details
Overview
BZX8850-C1V8YL from Nexperia is a low-current Zener diode in SOD882 (DFN1006-2) package, designed for precision voltage regulation at 1.8 V nominal with ±5 % tolerance. It delivers stable reference voltage at 50 µA test current, features 0.9 V forward voltage at 10 mA, and supports total power dissipation up to 250 mW. It is optimized for low-bias, battery-powered portable electronics requiring minimal leakage and fast switching.
For engineers reviewing the BZX8850-C1V8YL datasheet, BZX8850-C1V8YL pinout, BZX8850-C1V8YL application, or BZX8850-C1V8YL equivalent, this page provides verified electrical characteristics, thermal behavior, package dimensions, marking interpretation (0A), and real-world selection guidance for low-power voltage reference design.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal Zener voltage of 1.8 V at IZ = 50 µA, exhibiting a temperature coefficient of −3.5 mV/K and differential resistance ≤ 600 Ω at 50 µA. Its low test current enables ultra-low quiescent current regulation in standby circuits.
The device uses silicon planar technology in a leadless DFN1006-2 package with cathode marked by a bar on the top surface. Thermal resistance from junction-to-ambient is 500 K/W on FR4 PCB, limiting continuous power handling under natural convection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 1.71 V to 1.89 V at IZ = 50 µA - defines tight 1.8 V regulation window for low-voltage biasing |
| Tolerance | ±5 % - standard series for cost-sensitive general-purpose regulation |
| Forward Voltage VF | ≤ 0.9 V at IF = 10 mA - ensures minimal drop when used in forward-conduction paths |
| Total Power Dissipation Ptot | 250 mW at Tamb ≤ 25 °C - sets maximum steady-state power on standard FR4 PCB |
| Differential Resistance rdiff | ≤ 600 Ω at IZ = 50 µA - indicates regulation stiffness under light-load conditions |
| Junction Temperature Range | −55 °C to +150 °C - supports operation across industrial ambient extremes |
| Reverse Current IR | ≤ 1.0 µA at VR = 1.0 V - confirms low leakage critical for battery longevity |
Pinout & Package
Package: SOD882 (DFN1006-2), leadless ultra-small surface-mount plastic package; body dimensions 1.0 × 0.6 × 0.5 mm; cathode indicated by marking bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - enables use in microamp-level bias networks without loading error |
| Ultra-small footprint | DFN1006-2 (1.0 × 0.6 mm) - saves board space in wearables, hearing aids, and compact IoT sensors |
| Controlled leakage optimization | Intentional minor rise in IR per AN90031 - improves switching speed and reduces noise in dynamic reference applications |
| Two tolerance options | ±2 % (B-series) and ±5 % (C-series) - allows cost/performance trade-off without redesign |
Applications
| Portable Sensor Biasing | Low-Power Microcontroller Reset Circuit |
|---|---|
Use Scenario: Providing stable 1.8 V reference to analog front-end of MEMS accelerometers in battery-operated condition monitoring nodes. IC Role / Device Role / Timing Role: Zener voltage reference source establishing precise bias point for sensor signal conditioning. Use Value: Enables <1 µA quiescent current in sleep mode while maintaining ±1.5 % reference accuracy over −40 °C to +85 °C. |
Use Scenario: Generating clean reset threshold for 1.8 V supply rails in ultra-low-power MCUs like ARM Cortex-M0+ in smart tags. IC Role / Device Role / Timing Role: Precision shunt regulator defining reset release voltage during power-up sequencing. Use Value: Delivers repeatable 1.8 V trigger point with <0.1 % hysteresis due to low rdiff and stable SZ coefficient. |
| Wearable Device LDO Feedback Divider | IoT Edge Node Reference Clamp |
Use Scenario: Acting as top resistor in feedback divider for adjustable LDOs powering Bluetooth LE radios in hearables. IC Role / Device Role / Timing Role: Shunt-based voltage clamp setting output voltage via resistive ratio with bottom leg. Use Value: Maintains regulation accuracy despite 10–100 µA load variation, minimizing output drift across battery discharge cycle. |
Use Scenario: Clamping ADC input protection network in LoRaWAN end-nodes exposed to ESD transients. IC Role / Device Role / Timing Role: Low-capacitance (220 pF) shunt clamp limiting overvoltage before TVS activation. Use Value: Adds <5 ns response latency and <1.5 V clamping overshoot margin below ADC full-scale, improving measurement integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX8850-B1V8 | Nominal VZ = 1.8 V, ±2 % tolerance, lower rdiff (≤600 Ω), same package | Higher accuracy required in precision analog sensing; tighter VZ spread reduces calibration overhead | Select when system-level VZ drift budget is <±0.5 % and test current remains at 50 µA |
| MMSZ4678T1G | VZ = 1.8 V, ±5 %, SOD-123 package (2.7 × 1.6 mm), Ptot = 500 mW, rdiff = 100 Ω | Larger footprint but higher power margin; suited for higher-current bias or transient energy absorption | Choose when board layout allows larger package and >250 mW dissipation is needed during surge events |
Compared with BZX8850-C1V8YL, BZX8850-B1V8 offers tighter tolerance for calibration-critical designs, while MMSZ4678T1G trades miniaturization for higher power handling and lower dynamic impedance-making it suitable for mixed-signal systems needing both reference stability and transient robustness.
Availability
BZX8850-C1V8YL is available at Aetrix Electronics and suitable for portable sensor biasing, low-power microcontroller reset circuits, and wearable device LDO feedback networks requiring stable component supply with guaranteed long-term continuity.
Supply support for BZX8850-C1V8YL 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, miniaturization, and sustainability.
The BZX8850 series belongs to Nexperia's low-current Zener diode product line, engineered specifically for ultra-low-power voltage regulation in space-constrained, battery-operated electronics where minimal leakage and stable low-current operation are essential.
FAQ
What is the marking code for BZX8850-C1V8YL?
The marking code for BZX8850-C1V8YL is '0A', laser-etched on the top surface of the DFN1006-2 package. The bar adjacent to the marking denotes the cathode (Pin 1), consistent with Table 4 in the datasheet. This two-character code uniquely identifies the 1.8 V ±5 % variant within the C-series.
Can BZX8850-C1V8YL be used in forward conduction mode?
Yes, BZX8850-C1V8YL functions as a standard silicon diode in forward bias, with VF ≤ 0.9 V at IF = 10 mA. Its forward characteristics are documented in Figure 2 of the datasheet. However, its primary design intent is reverse-bias Zener regulation; forward use should respect IF ≤ 200 mA absolute maximum rating.
How does the ±5 % tolerance affect regulation accuracy in a 1.8 V circuit?
At 25 °C, the ±5 % tolerance means VZ falls between 1.71 V and 1.89 V at 50 µA. Combined with a temperature coefficient of −3.5 mV/K, worst-case deviation over −40 °C to +125 °C is ±85 mV. For high-accuracy applications, system-level calibration or tighter-tolerance B-series variants are recommended.
Is thermal derating required for operation above 25 °C ambient?
Yes. With Rth(j-a) = 500 K/W on FR4, power dissipation must be linearly reduced above 25 °C. At 85 °C ambient, maximum allowable Ptot drops to 150 mW ((150 °C − 85 °C) / 500 K/W). Layout improvements (copper pour, thermal vias) can improve actual thermal performance beyond the datasheet baseline.
BZX8850-C1V8YL 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):
- 1.8 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 7.5 µA @ 1 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-C1V8YL FAQ
1.How can I place an order for BZX8850-C1V8YL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850-C1V8YL 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-C1V8YL reliable?
The price and inventory of BZX8850-C1V8YL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8850-C1V8YL is usually 5 days.
3.What payment methods are accepted for BZX8850-C1V8YL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850-C1V8YL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850-C1V8YL?
BZX8850-C1V8YL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850-C1V8YL 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-C1V8YL?
For technical support, including BZX8850-C1V8YL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850-C1V8YL requirements.
6.How does Aetrix verify that BZX8850-C1V8YL is sourced from the original manufacturer or authorized distributors?
All BZX8850-C1V8YL 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-C1V8YL meets industry standards.
7.What is the process for return or replacement of BZX8850-C1V8YL?
All BZX8850-C1V8YL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850-C1V8YL, 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-C1V8YL part is unused and in its original packaging.
Return procedure for BZX8850-C1V8YL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850-C1V8YL 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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