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Nexperia USA Inc. BZX8850-C47YL
- Part No.:
- BZX8850-C47YL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850-C47YL.pdf
- Description:
- DIODE ZENER 47V 250MW DFN1006-2
- Quantity:
- Payment:
- Shipping:
Inventory:4,902
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Product details
Overview
BZX8850-C47YL from Nexperia is a low-current Zener diode in SOD882 (DFN1006-2) package, designed for precision voltage regulation at 47 V nominal with ±5 % tolerance. It delivers stable reference voltage at 50 μA test current, features 375 Ω differential resistance at 2 mA, and exhibits 0.05 μA reverse leakage at rated voltage-optimized for battery-powered sensor nodes and low-power analog front-ends.
For engineers reviewing the BZX8850-C47YL datasheet, BZX8850-C47YL pinout, BZX8850-C47YL application, or BZX8850-C47YL equivalent, this device serves as a compact, low-bias voltage reference where thermal stability, minimal capacitance (40 pF), and fast transient response are critical in space-constrained portable electronics.
Technical Context
This Zener operates in reverse breakdown mode with a specified 47 V nominal working voltage (44.0–50.0 V range) and temperature coefficient of +0.05 mV/K, enabling predictable drift compensation in ambient-temperature-varying circuits. Its 375 Ω dynamic impedance at 2 mA ensures tight regulation under light-load conditions typical of microcontroller reset circuits and ADC reference buffers.
The device uses a planar epitaxial silicon process with intentional minor leakage optimization per AN90031, reducing noise and improving switching speed during transient events. Thermal resistance is 500 K/W junction-to-ambient on FR4 PCB, limiting continuous power dissipation to 250 mW at ≤25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 47 V (range 44.0–50.0 V); provides stable reference for 48 V rail monitoring and overvoltage clamping |
| Tolerance | ±5 %; enables cost-effective selection without tight-bin sorting in non-critical bias networks |
| Test Current | 50 μA; allows operation directly from high-impedance sources like CMOS outputs or RC timing networks |
| Differential Resistance | 375 Ω at IZ = 2 mA; maintains <1 % output variation across 10–100 μA load shifts |
| Reverse Leakage | 0.05 μA at VR = 47 V; minimizes quiescent current drain in always-on battery circuits |
| Capacitance | 40 pF at f = 1 MHz, VR = 0 V; preserves signal integrity in high-frequency sensing paths |
| Power Dissipation | 250 mW max at Tamb ≤ 25 °C; supports continuous operation in thermally unmanaged PCB layouts |
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 voltage node; polarity-sensitive connection for reverse-bias operation |
| 2 | Anode (A) | Ground or lower-potential reference point; defines direction of Zener conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 μA-enables direct use with nanoamp-level bias sources in IoT sensor nodes |
| Optimized leakage profile | Intentional minor leakage per AN90031 reduces switching noise in ADC reference decoupling |
| Ultra-compact footprint | SOD882 package occupies only 0.6 mm² PCB area-ideal for wearables and hearing aids |
| Thermal robustness | 150 °C maximum junction temperature supports operation in sealed industrial enclosures |
| Stable temperature coefficient | +0.05 mV/K enables predictable drift correction in temperature-compensated voltage monitors |
Applications
| Portable Sensor Biasing | Microcontroller Reset Reference |
|---|---|
Use Scenario: Providing stable 47 V bias to MEMS pressure sensor bridge in battery-powered environmental monitor. IC Role / Device Role / Timing Role: Zener voltage reference establishing precise excitation voltage for ratiometric measurement accuracy. Use Value: 0.05 μA leakage prevents measurable battery drain over multi-year deployment; 40 pF capacitance avoids signal phase shift in 10 kHz sampling. |
Use Scenario: Generating reliable reset threshold for ARM Cortex-M0+ MCU operating from 48 V supply in smart meter design. IC Role / Device Role / Timing Role: Precision shunt regulator defining brown-out detection level independent of supply ripple. Use Value: ±5 % tolerance and 375 Ω dynamic impedance ensure reset assertion within 100 ms of undervoltage event, meeting IEC 62053-21 timing requirements. |
| Low-Power Analog Front-End | Overvoltage Clamp Protection |
Use Scenario: Setting reference voltage for op-amp-based current-sense amplifier in solar charge controller. IC Role / Device Role / Timing Role: Low-drift Zener reference stabilizing gain-setting network against temperature-induced offset drift. Use Value: +0.05 mV/K coefficient enables <±2 mV total drift over −40 to +85 °C, maintaining <0.1 % current measurement error. |
Use Scenario: Clamping transients on 48 V CAN bus power line in automotive body control module. IC Role / Device Role / Timing Role: Fast-response shunt protector absorbing ESD pulses while minimizing parasitic capacitance loading. Use Value: 40 pF capacitance avoids CAN FD signal edge degradation; 40 W non-repetitive surge rating handles ISO 10605 30 kV contact discharge. |
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-B47 | ±2 % tolerance, 350 Ω rdiff at 5 mA, 0.05 μA IR at 47 V | Higher precision required in calibration-grade instrumentation | Select when tighter voltage accuracy outweighs cost sensitivity and test current must be ≥5 mA |
| MMSZ47ET1G | ±5 % tolerance, 500 Ω rdiff at 1 mA, 1.0 μA IR at 47 V, SOD-123 package (2.7 × 1.6 mm) | Legacy board redesign where larger footprint is acceptable | Choose only if existing layout cannot accommodate DFN1006-2; higher leakage increases battery load 20× |
Compared with BZX8850-C47YL, the BZX8850-B47 offers tighter tolerance but requires higher bias current, while MMSZ47ET1G trades size and leakage performance for broader industry availability-making the C47YL optimal for new ultra-low-power, space-constrained designs.
Availability
BZX8850-C47YL is available at Aetrix Electronics and suitable for portable sensor biasing, microcontroller reset reference, and low-power analog front-end applications requiring stable component supply with guaranteed long-term continuity.
Supply support for BZX8850-C47YL 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 logic, analog, and discrete components with focus on efficiency, reliability, and miniaturization.
The BZX8850 series belongs to Nexperia's precision low-current Zener portfolio, engineered specifically for energy-efficient voltage reference and regulation in battery-operated and space-constrained electronic systems.
FAQ
What is the maximum continuous power dissipation for BZX8850-C47YL?
The BZX8850-C47YL has a maximum total power dissipation of 250 mW at ambient temperatures ≤25 °C when mounted on a standard FR4 PCB with single-sided copper. Derating is required above 25 °C at 2.0 mW/°C, reaching zero dissipation at 150 °C ambient.
Can BZX8850-C47YL be used in place of a 47 V Zener with 1 mA test current?
No-it is specified at 50 μA test current, not 1 mA. Using it at 1 mA will cause significant voltage deviation (up to +0.5 V) due to its 375 Ω dynamic resistance. For 1 mA operation, BZX8850-B47 (specified at 5 mA) or BZX8850-C47 at 2 mA (per Table 9) is appropriate.
How does the "intentional minor leakage" benefit circuit performance?
Per AN90031, the controlled leakage improves transient response and reduces high-frequency noise by optimizing carrier recombination dynamics. This results in faster recovery after overvoltage events and lower RMS noise in precision reference paths-critical for 16-bit ADC stability.
Is the SOD882 package compatible with standard reflow soldering profiles?
Yes-the DFN1006-2 package is qualified for IPC/JEDEC J-STD-020D reflow profiles. Figure 10 specifies a recommended solder land pattern with 0.3 mm pad width and 0.6 mm spacing; peak temperature must not exceed 260 °C for ≤30 seconds to avoid delamination.
BZX8850-C47YL 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):
- 47 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 170 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 32.9 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-C47YL FAQ
1.How can I place an order for BZX8850-C47YL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850-C47YL 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-C47YL reliable?
The price and inventory of BZX8850-C47YL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8850-C47YL is usually 5 days.
3.What payment methods are accepted for BZX8850-C47YL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850-C47YL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850-C47YL?
BZX8850-C47YL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850-C47YL 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-C47YL?
For technical support, including BZX8850-C47YL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850-C47YL requirements.
6.How does Aetrix verify that BZX8850-C47YL is sourced from the original manufacturer or authorized distributors?
All BZX8850-C47YL 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-C47YL meets industry standards.
7.What is the process for return or replacement of BZX8850-C47YL?
All BZX8850-C47YL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850-C47YL, 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-C47YL part is unused and in its original packaging.
Return procedure for BZX8850-C47YL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850-C47YL Tags
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