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Nexperia USA Inc. BZX8850S-C47-QYL
- Part No.:
- BZX8850S-C47-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850S-C47-QYL.pdf
- Description:
- DIODE ZENER 47V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:9,384
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Product details
Overview
BZX8850S-C47-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 47 V Zener voltage at 50 µA test current, with ±5 % tolerance, 365 mW total power dissipation, and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZX8850S-C47-QYL datasheet, BZX8850S-C47-QYL pinout, BZX8850S-C47-QYL application, or BZX8850S-C47-QYL equivalent, key selection criteria include its ultra-small DFN1006BD-2 (SOD882BD) package, side-wettable flanks for automated optical inspection, low leakage optimization for noise-sensitive analog rails, and specified differential resistance of 170 Ω at 2 mA.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal VZ of 47 V, specified at IZ = 50 µA - enabling stable regulation in ultra-low-bias applications such as battery monitoring and sensor biasing. Its temperature coefficient is +0.05 mV/K, indicating minimal drift over temperature, and it exhibits 40 pF capacitance at 0 V reverse bias, supporting high-frequency stability in feedback networks.
The device features intentional minor leakage current enhancement per AN90031 to improve switching speed and reduce noise in dynamic regulation paths. Its junction-to-ambient thermal resistance is 340 K/W on standard FR4 PCB, limiting continuous power handling but ensuring robust transient surge capability up to 40 W for 100 µs pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 44.0 V to 50.0 V at IZ = 50 µA - defines precise clamping threshold for overvoltage protection and reference generation |
| Tolerance | ±5 % - enables cost-effective selection for non-critical regulation where tight voltage accuracy is not required |
| Differential Resistance (rdiff) | 170 Ω max at IZ = 2 mA - determines regulation stiffness and output impedance in shunt configuration |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - ensures low conduction loss when used in forward-biased protection or logic-level detection |
| Total Power Dissipation (Ptot) | 365 mW at Tamb ≤ 25 °C - sets maximum steady-state power budget on standard FR4 PCB |
| Junction Temperature (Tj) | −55 °C to +150 °C - supports operation in under-hood automotive environments and industrial edge nodes |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including HTOL, TC, and ESD testing per discrete semiconductor stress standards |
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 solder-joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (marked side) | 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 shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | DFN1006BD-2 (1.0 mm × 0.6 mm) enables placement in dense portable electronics and automotive ECUs with strict board area constraints |
| Side-wettable flanks | Facilitates automated optical inspection (AOI) of solder joints without X-ray, improving manufacturing yield and process control |
| Low-test-current specification | VZ defined at 50 µA - ideal for battery-powered systems where quiescent current must remain below 100 µA |
| Optimized leakage profile | Intentional minor IR increase per AN90031 - reduces switching transients and broadband noise in fast-response regulation loops |
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
Applications
| Automotive Battery Monitoring | Portable Gas Sensor Biasing |
|---|---|
|
Use Scenario: Monitoring 12 V/24 V vehicle battery voltage across wide temperature ranges (-40 °C to +125 °C). IC Role / Device Role / Timing Role: Shunt Zener reference in comparator input stage for undervoltage/overvoltage detection. Use Value: Stable 47 V clamping protects downstream circuitry during load-dump transients while maintaining <1 µA standby leakage. |
Use Scenario: Providing stable bias voltage to electrochemical gas sensors in handheld air quality meters. IC Role / Device Role / Timing Role: Precision voltage reference for sensor excitation circuit operating from coin-cell batteries. Use Value: Low 50 µA test current enables regulation without draining microampere-scale battery capacity over months of operation. |
| Industrial PLC Analog Input Protection | Medical Wearable Signal Conditioning |
|
Use Scenario: Overvoltage clamping on 0–10 V analog input channels of programmable logic controllers. IC Role / Device Role / Timing Role: Front-end shunt limiter absorbing transient surges before signal conditioning amplifiers. Use Value: 40 W non-repetitive peak power rating handles IEC 61000-4-5 surge events while 170 Ω rdiff minimizes voltage sag during clamping. |
Use Scenario: Reference stabilization in low-noise instrumentation amplifiers for ECG/PPG front-ends. IC Role / Device Role / Timing Role: Low-noise Zener source for gain-setting resistors and ADC reference buffers. Use Value: Optimized leakage profile per AN90031 suppresses broadband noise that would otherwise degrade sub-µV signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX8850S-B47-Q | Nominal VZ = 47 V, ±2 % tolerance (vs. ±5 %), higher rdiff = 200 Ω at 5 mA | Preferred where tighter voltage accuracy is critical, e.g., calibration references | Select BZX8850S-B47-Q only if system-level tolerance stack-up requires <±2 % regulation; otherwise C-series offers better cost/performance balance |
| MMSZ5268ET1G | 47 V Zener, SOD-123 package (2.7 mm × 1.6 mm), 500 mW Ptot, no AEC-Q101 qualification | Suitable for industrial/commercial boards where automotive qualification is unnecessary | Choose MMSZ5268ET1G only when board space allows larger footprint and AEC-Q101 is not mandated; BZX8850S-C47-QYL provides superior miniaturization and automotive compliance |
Compared with BZX8850S-B47-Q, the C47 variant trades voltage precision for lower cost and optimized noise performance; versus MMSZ5268ET1G, it delivers 43 % smaller footprint, AEC-Q101 validation, and side-wettable flanks - making it the sole choice for next-gen automotive and portable medical designs requiring both size and reliability.
Availability
BZX8850S-C47-QYL is available at Aetrix Electronics and suitable for automotive battery monitoring, portable gas sensor biasing, industrial PLC analog input protection, and medical wearable signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZX8850S-C47-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 essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The BZX8850S-Q series belongs to Nexperia's automotive-qualified Zener diode portfolio, engineered specifically for low-current, high-stability voltage reference and overvoltage protection in space-constrained, safety-critical systems.
FAQ
What is the marking code for BZX8850S-C47-QYL?
The official marking code for BZX8850S-C47-QYL is '7Z', as confirmed in Table 4 of the Nexperia datasheet Rev. 3. This two-character code appears on the top surface of the DFN1006BD-2 package, with the cathode indicated by a visible marking bar adjacent to pin 1.
Can BZX8850S-C47-QYL be used in place of a 47 V through-hole Zener diode?
Yes, but only with PCB layout adaptation: its DFN1006BD-2 footprint requires reflow-compatible pads per Figure 10, and thermal design must account for its 340 K/W Rth(j-a) on FR4. Unlike through-hole parts, it cannot dissipate >365 mW continuously without derating, and mechanical mounting differs entirely.
Does the 'QYL' suffix indicate a specific tape-and-reel packaging option?
Yes - 'QYL' denotes the 7-inch reel packaging variant with 10,000 units per reel, compliant with EIA-481-D standards. This differs from 'QY' (same reel size, 8,000 units) and 'QX' (13-inch reel, 20,000 units), all sharing identical electrical and thermal specifications.
Is the 47 V Zener voltage guaranteed across the full −55 °C to +150 °C range?
No - the 44.0 V to 50.0 V range applies at Tj = 25 °C. At extremes, VZ shifts per its +0.05 mV/K temperature coefficient: at +125 °C, typical deviation is +5.0 V, yielding ~49–52 V; at −40 °C, deviation is −2.4 V, yielding ~41–45 V. System design must accommodate this drift.
BZX8850S-C47-QYL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-882
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 47 V
- Tolerance:
- ±5%
- Power - Max:
- 365 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006BD-2
BZX8850S-C47-QYL FAQ
1.How can I place an order for BZX8850S-C47-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850S-C47-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-C47-QYL reliable?
The price and inventory of BZX8850S-C47-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-C47-QYL is usually 5 days.
3.What payment methods are accepted for BZX8850S-C47-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850S-C47-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850S-C47-QYL?
BZX8850S-C47-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850S-C47-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-C47-QYL?
For technical support, including BZX8850S-C47-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850S-C47-QYL requirements.
6.How does Aetrix verify that BZX8850S-C47-QYL is sourced from the original manufacturer or authorized distributors?
All BZX8850S-C47-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-C47-QYL meets industry standards.
7.What is the process for return or replacement of BZX8850S-C47-QYL?
All BZX8850S-C47-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850S-C47-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-C47-QYL part is unused and in its original packaging.
Return procedure for BZX8850S-C47-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850S-C47-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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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
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Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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