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Nexperia USA Inc. BZX58550-B6V2X
- Part No.:
- BZX58550-B6V2X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX58550-B6V2X.pdf
- Description:
- DIODE ZENER 6.2V 270MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:4,236
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Product details
Overview
BZX58550-B6V2X from Nexperia is a low-current Zener voltage regulator diode in SOD523 (SC-79) package, designed for precision biasing and voltage reference in ultra-low-power circuits. It delivers a nominal 6.2 V regulation at 50 µA test current, with ±2 % tolerance, 160 Ω dynamic impedance at 5 mA, and 5.0 µA max reverse leakage at 4.5 V, enabling stable operation in portable battery-powered sensors and microcontroller reset circuits.
For engineers reviewing the BZX58550-B6V2X datasheet, BZX58550-B6V2X pinout, BZX58550-B6V2X application, or BZX58550-B6V2X equivalent, this page provides verified electrical parameters, thermal performance data, SOD523 footprint details, and validated alternative parts for low-current Zener regulation in space-constrained designs.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining stable output voltage across its cathode-anode terminals under varying load conditions via controlled reverse breakdown. Its specified 50 µA test current enables accurate low-bias referencing without excessive quiescent draw.
Thermal resistance from junction to ambient is 350 K/W when mounted on an FR4 PCB with 35 mm² copper area at the cathode tab, supporting reliable operation up to 150 °C junction temperature. The intentional minor rise in leakage current improves switching speed and reduces noise per AN90031.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 6.2 V at IZ = 50 µA - precise reference point for low-power bias networks |
| Voltage Tolerance | ±2 % - tight regulation suitable for accuracy-critical analog sensing interfaces |
| Differential Resistance | 160 Ω at IZ = 5 mA - low impedance ensures minimal voltage shift under small load variations |
| Reverse Leakage Current | 5.0 µA max at VR = 4.5 V - enables ultra-low standby power in battery-backed systems |
| Total Power Dissipation | 300 mW at Tamb ≤ 25 °C - supports continuous operation in compact SMD layouts with defined copper area |
| Forward Voltage | 0.9 V max at IF = 10 mA - defines conduction threshold during forward-biased protection or clamping use |
| Junction Temperature Limit | 150 °C - sets maximum thermal operating envelope for reliability in industrial environments |
Pinout & Package
Package: SOD523 (SC-79), ultra-small surface-mount plastic package measuring 1.2 mm × 0.8 mm × 0.6 mm with flat leads and cathode marking bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (marked side) | Cathode (K) | Connected to regulated voltage node; marking bar identifies polarity for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low test current operation | Specified at 50 µA - minimizes quiescent current in always-on sensor nodes and RTC backup circuits |
| Tight voltage tolerance | ±2 % - eliminates need for post-production trimming in precision reference applications |
| Optimized leakage profile | Intentional minor rise per AN90031 - enhances transient response and reduces broadband noise in signal conditioning paths |
| Miniature SOD523 footprint | 1.2 mm × 0.8 mm body - enables high-density placement in wearables, hearing aids, and IoT edge nodes |
| Thermal robustness | Rth(j-a) = 350 K/W with 35 mm² cathode copper - sustains regulation stability under sustained ambient temperatures up to +85 °C |
Applications
| Microcontroller Reset Circuit | Low-Power Sensor Biasing |
|---|---|
Use Scenario: Providing clean, stable reset voltage to ARM Cortex-M0+ microcontrollers during brown-out conditions. IC Role / Device Role / Timing Role: Shunt Zener reference establishing VREF for internal POR circuitry and external reset supervisor ICs. Use Value: 6.2 V nominal voltage with ±2 % tolerance ensures deterministic reset assertion across temperature and supply variation. |
Use Scenario: Supplying bias current to MEMS pressure transducers in battery-operated environmental monitors. IC Role / Device Role / Timing Role: Low-current voltage reference generating fixed excitation voltage for Wheatstone bridge elements. Use Value: 50 µA test current and 5.0 µA leakage enable multi-year operation on coin-cell batteries without compromising accuracy. |
| Portable Audio Amplifier Reference | IoT Node Voltage Clamping |
Use Scenario: Stabilizing bias point for Class AB headphone amplifier stages in Bluetooth earbuds. IC Role / Device Role / Timing Role: Zener-regulated virtual ground reference decoupling analog signal paths from noisy digital rails. Use Value: 160 Ω dynamic impedance suppresses ripple coupling while maintaining fast settling for audio-band signals. |
Use Scenario: Protecting GPIO pins of ESP32-WROOM modules against ESD-induced overvoltage during field deployment. IC Role / Device Role / Timing Role: Fast-switching shunt clamp limiting transient voltages to safe levels before MCU input protection diodes activate. Use Value: Optimized leakage profile per AN90031 reduces jitter and improves immunity to RF interference in wireless subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX58550-C6V2 | ±5 % tolerance vs. ±2 %; identical 6.2 V nominal, same SOD523 package and thermal specs | Suitable where cost sensitivity outweighs precision requirement; higher leakage variance affects low-power timing stability | Select when budget constraints dominate and system-level calibration compensates for wider voltage spread |
| MMSZ5234B-7-F | 6.2 V nominal, ±5 %, SOD-123 package (2.7 mm × 1.4 mm); 500 mW Ptot; 100 Ω rdiff at 20 mA | Larger footprint and higher power rating support higher-current regulation but increase board area by 3.4× | Choose only if existing layout accommodates SOD-123 and >1 mA load current is required |
Compared with BZX58550-C6V2, the BZX58550-B6V2X offers tighter voltage control critical for uncalibrated analog front-ends; versus MMSZ5234B-7-F, it delivers superior space efficiency and lower leakage for sub-100 µA applications, despite slightly higher dynamic impedance.
Availability
BZX58550-B6V2X is available at Aetrix Electronics and suitable for microcontroller reset circuits, low-power sensor biasing, portable audio references, and IoT node voltage clamping requiring stable component supply with guaranteed long-term sourcing.
Supply support for BZX58550-B6V2X 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 logic, discrete, and MOSFET devices, serving automotive, industrial, and consumer markets with scalable manufacturing and rigorous quality systems.
The BZX58550 series belongs to Nexperia's low-current Zener regulator product line, engineered specifically for ultra-low-power voltage referencing in battery-constrained and miniaturized electronic systems.
FAQ
What is the maximum reverse voltage the BZX58550-B6V2X can withstand before breakdown?
The BZX58550-B6V2X has a nominal Zener voltage of 6.2 V at 50 µA test current, with a guaranteed working range of 6.08 V to 6.32 V. Its absolute maximum non-repetitive peak reverse voltage is not specified independently; instead, it is governed by the 40 W non-repetitive surge rating at 100 µs pulse width and 25 °C junction temperature, corresponding to ~12.6 V at 3.17 A peak current.
Can this diode be used in forward conduction mode as a standard rectifier?
No - the BZX58550-B6V2X is optimized for reverse-bias Zener operation and is not characterized or rated for forward rectification. Its forward voltage is specified only as ≤0.9 V at 10 mA, with no guaranteed surge current, reverse recovery time, or repetitive forward current rating. Use dedicated Schottky or signal diodes for rectification tasks.
How does the SOD523 package affect thermal performance compared to larger Zener packages?
The SOD523 package limits thermal dissipation: total power is capped at 300 mW with 35 mm² cathode copper, versus 500 mW for SOD-123 equivalents. Junction-to-ambient thermal resistance is 350 K/W - significantly higher than TO-236 (≈200 K/W) - meaning power derating begins earlier above 25 °C ambient, requiring careful layout with extended copper pour for >100 mW operation.
Is the BZX58550-B6V2X suitable for automotive applications?
No - the BZX58550-B6V2X is not AEC-Q200 qualified and lacks automotive-grade screening, temperature cycling validation, or guaranteed operation beyond −55 °C to +150 °C junction range. Nexperia explicitly states non-automotive qualification in its legal disclaimers; use automotive-qualified Zeners such as BZX84-A6V2 for vehicle ECUs or infotainment systems.
BZX58550-B6V2X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX58550
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±2%
- Power - Max:
- 270 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
BZX58550-B6V2X FAQ
1.How can I place an order for BZX58550-B6V2X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX58550-B6V2X 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 BZX58550-B6V2X reliable?
The price and inventory of BZX58550-B6V2X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX58550-B6V2X is usually 5 days.
3.What payment methods are accepted for BZX58550-B6V2X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX58550-B6V2X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX58550-B6V2X?
BZX58550-B6V2X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX58550-B6V2X 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 BZX58550-B6V2X?
For technical support, including BZX58550-B6V2X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX58550-B6V2X requirements.
6.How does Aetrix verify that BZX58550-B6V2X is sourced from the original manufacturer or authorized distributors?
All BZX58550-B6V2X 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 BZX58550-B6V2X meets industry standards.
7.What is the process for return or replacement of BZX58550-B6V2X?
All BZX58550-B6V2X units undergo pre-shipment inspection (PSI). If there is an issue with BZX58550-B6V2X, 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 BZX58550-B6V2X part is unused and in its original packaging.
Return procedure for BZX58550-B6V2X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX58550-B6V2X Tags
-
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
-
MMSZ4682T1G
onsemi
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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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