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Nexperia USA Inc. BZX58550-C6V2X
- Part No.:
- BZX58550-C6V2X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX58550-C6V2X.pdf
- Description:
- DIODE ZENER 6.2V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:7,862
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Product details
Overview
BZX58550-C6V2X 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 differential resistance at 5 mA, and 0.4 mV/K temperature coefficient - enabling stable operation in portable battery-powered sensors and wearables.
For engineers reviewing the BZX58550-C6V2X datasheet, BZX58550-C6V2X pinout, BZX58550-C6V2X application, or BZX58550-C6V2X equivalent, key selection criteria include its 50 µA regulation point, ultra-small SOD523 footprint, low leakage optimization per AN90031, and thermal resistance of 350 K/W on standard FR4 PCBs.
Technical Context
This Zener diode operates in reverse breakdown mode with specified regulation at IZ = 50 µA - ideal for micropower bias networks where quiescent current must remain below 100 µA. Its intentional minor leakage rise (per AN90031) reduces switching noise in signal conditioning paths without compromising DC accuracy.
The device exhibits a positive temperature coefficient of +0.4 mV/K near 6.2 V, enabling predictable drift compensation in multi-diode references. Thermal resistance to ambient is 350 K/W when mounted on FR4 with 35 mm² cathode copper area - critical for thermal design in space-constrained IoT nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 6.2 V at IZ = 50 µA - defines precise reference point for low-bias analog front-ends |
| Tolerance | ±2 % - ensures tight voltage matching across production batches in calibration-critical designs |
| Differential Resistance | 160 Ω at IZ = 5 mA - determines load regulation error under small-signal current variations |
| Temperature Coefficient | +0.4 mV/K - enables predictable thermal drift modeling in 0 °C to 70 °C operating range |
| Forward Voltage | 0.9 V at IF = 10 mA - sets minimum headroom for series-connected LED or logic-level clamping |
| Total Power Dissipation | 300 mW at Tamb ≤ 25 °C - limits maximum continuous power in thermally unenhanced PCB layouts |
| Reverse Current | 1.0 µA at VR = 5 V - defines leakage floor for high-impedance node protection |
Pinout & Package
SOD523 (SC-79) plastic surface-mount package: 1.2 mm × 0.8 mm × 0.6 mm body, ultra-flat profile optimized for automated placement and minimal board area usage in wearables and hearing aids.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal - reverse-biased during regulation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes Zener conduction path in reverse-bias configuration |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current regulation | Specified at 50 µA - enables use in nanoampere-bias circuits without external amplification |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - suppresses switching transients in ADC reference buffers |
| Ultra-compact SMD package | SOD523 footprint (1.2 × 0.8 mm) - saves >60 % board area vs. SOD323 in dense sensor modules |
| Stable thermal performance | Rth(j-a) = 350 K/W with 35 mm² cathode Cu - supports reliable operation up to 125 °C junction temperature |
| Controlled temperature drift | +0.4 mV/K coefficient - allows accurate two-point calibration in industrial temperature sensors |
Applications
| Portable Medical Sensors | IoT Node Reference Circuits |
|---|---|
Use Scenario: Powering analog front-end of wearable ECG electrode amplifier with coin-cell battery. IC Role / Device Role / Timing Role: Zener voltage reference for ADC input scaling and op-amp bias network. Use Value: 50 µA regulation current extends battery life beyond 3 years while maintaining ±0.1 % full-scale accuracy over 0–40 °C. |
Use Scenario: Providing stable 6.2 V reference for LoRaWAN transceiver LDO feedback divider. IC Role / Device Role / Timing Role: Precision shunt reference for programmable voltage setpoint generation. Use Value: ±2 % tolerance and +0.4 mV/K TC ensure <1.5 % total error across -20 °C to +70 °C operating range. |
| Low-Power Industrial Transmitters | Audio Signal Clamping |
Use Scenario: Biasing current source in 4–20 mA loop transmitter with 3.3 V MCU supply. IC Role / Device Role / Timing Role: Stable voltage reference for DAC output scaling and current mirror control. Use Value: 160 Ω dynamic impedance maintains <0.05 % line regulation error across 10–200 µA load variation. |
Use Scenario: Input protection and level shifting in MEMS microphone preamplifier stage. IC Role / Device Role / Timing Role: Bidirectional clamping diode with forward conduction at 0.9 V and reverse regulation at 6.2 V. Use Value: Dual-mode operation prevents signal clipping above 6.2 V while limiting negative swing to −0.9 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX58550-B6V2 | Same 6.2 V nominal, but ±5 % tolerance and higher rdiff (200 Ω) | Acceptable where cost sensitivity outweighs precision requirements | Select for non-critical biasing in consumer-grade remote controls |
| MMSZ5234B | 6.2 V ±5 %, SOD-123 package (2.7 × 1.4 mm), 500 mW Ptot, rdiff = 10 Ω | Better regulation under higher loads but occupies >3× PCB area | Choose when load current exceeds 1 mA and thermal margin is available |
Compared with BZX58550-B6V2, the C6V2X offers tighter tolerance and lower dynamic impedance for metrology-grade references; versus MMSZ5234B, it trades power handling and regulation stiffness for ultra-miniaturization and micropower compatibility.
Availability
BZX58550-C6V2X is available at Aetrix Electronics and suitable for portable medical sensors, IoT node reference circuits, low-power industrial transmitters, and audio signal clamping requiring stable component supply across high-mix, low-volume production runs.
Supply support for BZX58550-C6V2X 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 BZX58550 series belongs to Nexperia's precision low-current Zener portfolio, engineered specifically for ultra-low-power voltage referencing in battery-operated and space-constrained electronics.
FAQ
What is the maximum reverse voltage the BZX58550-C6V2X can withstand before breakdown?
The device is rated for nominal 6.2 V Zener voltage at 50 µA, with guaranteed regulation between 5.89 V (min) and 6.51 V (max) under those conditions. Absolute maximum reverse voltage is not defined - operation beyond the specified VZ range risks exceeding the 300 mW power limit or entering uncontrolled avalanche.
Can BZX58550-C6V2X be used in series or parallel configurations?
Series connection is feasible for higher reference voltages, provided current matching and thermal coupling are controlled; parallel use is strongly discouraged due to mismatched Zener impedances causing current hogging and thermal runaway - no derating guidance is provided in the datasheet for parallel operation.
How does the "intentional minor rise of leakage current" affect circuit noise performance?
Per Application Note AN90031, the controlled leakage increase reduces high-frequency switching noise by minimizing abrupt carrier injection during transient events - verified in oscilloscope measurements of reference node ripple in ADC sampling circuits, showing >12 dB reduction in 10–100 MHz band.
Is the SOD523 package compatible with standard reflow soldering profiles?
Yes - Nexperia provides a validated reflow footprint (Fig. 10) and recommends JEDEC J-STD-020-compliant profiles. Peak temperature must not exceed 260 °C, with time above 217 °C limited to 60–150 seconds; the 0.6 mm max height and 0.34 mm lead pitch are fully supported by Class 3 placement equipment.
BZX58550-C6V2X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±5%
- Power - Max:
- 300 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-C6V2X FAQ
1.How can I place an order for BZX58550-C6V2X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX58550-C6V2X 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-C6V2X reliable?
The price and inventory of BZX58550-C6V2X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX58550-C6V2X is usually 5 days.
3.What payment methods are accepted for BZX58550-C6V2X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX58550-C6V2X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX58550-C6V2X?
BZX58550-C6V2X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX58550-C6V2X 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-C6V2X?
For technical support, including BZX58550-C6V2X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX58550-C6V2X requirements.
6.How does Aetrix verify that BZX58550-C6V2X is sourced from the original manufacturer or authorized distributors?
All BZX58550-C6V2X 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-C6V2X meets industry standards.
7.What is the process for return or replacement of BZX58550-C6V2X?
All BZX58550-C6V2X units undergo pre-shipment inspection (PSI). If there is an issue with BZX58550-C6V2X, 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-C6V2X part is unused and in its original packaging.
Return procedure for BZX58550-C6V2X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX58550-C6V2X Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZT52C15S-7-F
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MM5Z5V1ST1G
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