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Nexperia USA Inc. BZX8850S-C56-QYL
- Part No.:
- BZX8850S-C56-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850S-C56-QYL.pdf
- Description:
- DIODE ZENER 56V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:5,243
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Product details
Overview
BZX8850S-C56-QYL from Nexperia is a low-current Zener voltage regulator diode in the BZX8850S-Q series, designed for precision biasing and voltage reference in space-constrained, low-power circuits. It delivers a nominal 56 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-C56-QYL datasheet, BZX8850S-C56-QYL pinout, BZX8850S-C56-QYL application, or BZX8850S-C56-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 performance at 50 µA bias current.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining stable reverse-biased breakdown across a 56 V nominal working voltage with differential resistance of ≤400 Ω at IZ = 2 mA. Its temperature coefficient is +0.05 mV/K, indicating minimal drift over ambient range (−55 °C to +150 °C).
The diode exhibits low capacitance (≤40 pF at f = 1 MHz, VR = 0 V) and reverse current ≤0.05 µA at VR = 51 V, enabling clean regulation in high-impedance sensor bias networks and low-quiescent-power microcontroller reset circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 56 V nominal at IZ = 50 µA; defines precise reference point for low-bias voltage stabilization |
| Tolerance | ±5 % (C-series); enables cost-effective selection where tight regulation is not required |
| Power Dissipation (Ptot) | 365 mW at Tamb ≤ 25 °C on FR4 PCB; sets maximum continuous thermal load in compact layouts |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA; ensures minimal forward conduction loss during transient polarity events |
| Differential Resistance (rdiff) | ≤400 Ω at IZ = 2 mA; determines output impedance and regulation sensitivity to load current changes |
| Reverse Current (IR) | ≤0.05 µA at VR = 51 V; guarantees negligible standby leakage in battery-critical applications |
| Package | DFN1006BD-2 (SOD882BD); 1.0 mm × 0.6 mm × 0.47 mm leadless body with side-wettable flanks for reliable reflow solder joint inspection |
Pinout & Package
Package: DFN1006BD-2 (SOD882BD), ultra-small leadless surface-mount plastic package with side-wettable flanks; 0.65 mm pitch; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated voltage 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 |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood and infotainment systems per stress test requirements |
| Side-wettable flanks (SWF) | Enables automated optical inspection (AOI) of solder joints without X-ray, improving manufacturing yield |
| Low test current specification (50 µA) | Optimized for micropower designs such as coin-cell-powered sensors and always-on wake-up circuits |
| Intentional minor leakage rise (C-series) | Reduces switching noise and improves transient response in feedback paths of LDOs and comparators |
| Thermal resistance (Rth(j-a)) | 340 K/W on standard FR4 PCB; supports operation up to 150 °C junction temperature with minimal derating |
Applications
| Automotive Sensor Biasing | Portable Medical Device Reference |
|---|---|
|
Use Scenario: Providing stable 56 V bias to piezoresistive pressure transducers in engine control modules. IC Role / Device Role / Timing Role: Shunt voltage reference regulating supply to analog front-end amplifiers. Use Value: AEC-Q101 qualification and −55 °C to +150 °C operating range ensure reliability across thermal cycling in under-hood environments. |
Use Scenario: Generating precise reference voltage for ADC input scaling in handheld ECG monitors. IC Role / Device Role / Timing Role: Low-leakage Zener element establishing fixed reference potential for ratiometric measurements. Use Value: 0.05 µA reverse current at 51 V minimizes battery drain in multi-week wearable deployments. |
| Industrial PLC Input Protection | IoT Node Power-Rail Clamp |
|
Use Scenario: Clamping transient overvoltage on 48 V DC input channels of programmable logic controllers. IC Role / Device Role / Timing Role: Fast-acting shunt protector limiting surge energy before TVS activation. Use Value: 40 W non-repetitive peak reverse power dissipation (tp = 100 µs) absorbs brief line transients without failure. |
Use Scenario: Stabilizing auxiliary 56 V rail in LPWA gateways powered by solar-charged LiFePO4 batteries. IC Role / Device Role / Timing Role: Low-quiescent regulator maintaining reference integrity during deep-sleep cycles. Use Value: Specified performance at 50 µA enables direct connection to high-impedance voltage dividers without active buffering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX8850S-B56-Q | Nominal 56 V with ±2 % tolerance; lower rdiff (≤350 Ω) but higher cost | Required where tighter regulation stability is critical, e.g., precision instrumentation calibration | Select when absolute voltage accuracy outweighs cost and leakage trade-offs |
| MMSZ5256B-TP | 56 V Zener, ±5 %, SOD-123 package (2.7 mm × 1.6 mm); 500 mW Ptot, no AEC-Q101 rating | Suitable for industrial/commercial boards where automotive qualification is unnecessary | Choose for legacy footprint compatibility or higher power margin, accepting larger size and non-automotive status |
Compared with BZX8850S-C56-QYL, the BZX8850S-B56-Q offers tighter voltage control at higher cost and slightly lower leakage, while MMSZ5256B-TP provides greater power headroom in a larger, non-automotive-qualified package - making the C56-QYL optimal for space- and qualification-constrained automotive and portable designs.
Availability
BZX8850S-C56-QYL is available at Aetrix Electronics and suitable for automotive sensor biasing, portable medical device references, and IoT node power-rail clamping requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant traceability.
Supply support for BZX8850S-C56-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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
The BZX8850S-Q series belongs to Nexperia's low-current Zener regulator portfolio, engineered specifically for miniaturized, low-power, and automotive-grade voltage reference and protection functions in modern electronic control units.
FAQ
What is the maximum reverse voltage this diode can withstand before breakdown?
The BZX8850S-C56-QYL has a nominal Zener voltage of 56 V at 50 µA test current, with a guaranteed minimum breakdown voltage of 53.2 V and maximum of 58.8 V (±5 %). It is not rated for continuous operation above its specified VZ range; sustained reverse voltage exceeding 58.8 V risks thermal runaway unless current is strictly limited by external series resistance.
Does this part support automated optical inspection (AOI) during PCB assembly?
Yes - the DFN1006BD-2 package features side-wettable flanks (SWF), allowing AOI systems to visually verify solder fillet formation on both lateral edges of the terminals. This eliminates the need for X-ray inspection in standard reflow processes and improves first-pass yield in high-volume automotive electronics manufacturing.
How does the "C-series" designation affect leakage and noise performance?
The "C" suffix indicates intentional minor elevation of reverse leakage current versus "B"-series parts, as documented in Application Note AN90031. This design choice reduces switching noise and improves transient response in feedback loops, making it preferred for low-noise analog references and fast comparator threshold circuits - without compromising regulation accuracy.
Can this Zener diode be used in parallel for higher power handling?
No - Zener diodes exhibit manufacturing variations in VZ and dynamic resistance, causing current imbalance when paralleled. Even with matched units, thermal coupling differences lead to thermal runaway. For higher power, select a single higher-rated device (e.g., BZX85 series in DO-35) or implement active regulation; do not parallel BZX8850S-C56-QYL units.
BZX8850S-C56-QYL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-882
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 56 V
- Tolerance:
- ±5%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 39.2 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-C56-QYL FAQ
1.How can I place an order for BZX8850S-C56-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850S-C56-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-C56-QYL reliable?
The price and inventory of BZX8850S-C56-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-C56-QYL is usually 5 days.
3.What payment methods are accepted for BZX8850S-C56-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850S-C56-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850S-C56-QYL?
BZX8850S-C56-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850S-C56-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-C56-QYL?
For technical support, including BZX8850S-C56-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850S-C56-QYL requirements.
6.How does Aetrix verify that BZX8850S-C56-QYL is sourced from the original manufacturer or authorized distributors?
All BZX8850S-C56-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-C56-QYL meets industry standards.
7.What is the process for return or replacement of BZX8850S-C56-QYL?
All BZX8850S-C56-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850S-C56-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-C56-QYL part is unused and in its original packaging.
Return procedure for BZX8850S-C56-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850S-C56-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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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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