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Nexperia USA Inc. BZX58550-C2V0-QX
- Part No.:
- BZX58550-C2V0-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX58550-C2V0-QX.pdf
- Description:
- DIODE ZENER 2V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:20,150
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Product details
Overview
BZX58550-C2V0-Q from Nexperia is a low-current Zener voltage regulator diode in SOD523 (SC-79) package, providing precise 2.0 V nominal regulation at 50 µA test current, with ±5 % tolerance, 300 mW power dissipation, and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZX58550-C2V0-Q datasheet, BZX58550-C2V0-Q pinout, BZX58550-C2V0-Q application, or BZX58550-C2V0-Q equivalent, this device serves as a compact, low-bias voltage reference in battery-powered sensor nodes, automotive body electronics, and portable power management circuits where space and leakage sensitivity are critical.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified working voltage of 2.0 V (min 1.88 V, max 2.12 V at IZ = 50 µA), exhibiting low forward voltage (≤0.9 V at 10 mA) and intentionally elevated leakage current to improve switching speed and noise performance per AN90031.
Thermal resistance from junction to ambient is 350 K/W on FR4 PCB with 35 mm² cathode copper area; it supports non-repetitive surge power up to 40 W (100 µs pulse) and operates across −55 °C to +150 °C ambient temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 2.0 V (1.88–2.12 V at IZ = 50 µA); enables stable low-voltage biasing in ultra-low-power circuits |
| Tolerance | ±5 %; matches C-series grading for cost-sensitive automotive and portable applications |
| Power Dissipation | 300 mW at Tamb ≤ 25 °C on FR4 with 35 mm² cathode Cu; defines maximum continuous thermal load |
| Test Current | 50 µA; allows operation in microampere-bias systems such as battery monitoring and wake-up circuitry |
| Forward Voltage | ≤0.9 V at 10 mA; ensures minimal conduction loss when used in series or clamping configurations |
| Junction Temperature | −55 °C to +150 °C; supports under-hood automotive placement and industrial extended-range environments |
| AEC-Q101 Qualified | Yes; certified for automotive discrete semiconductor stress testing including HTGB, HTRB, and ESD |
Pinout & Package
Package: SOD523 (SC-79), ultra-small surface-mount plastic package measuring 1.2 mm × 0.8 mm × 0.6 mm, with flat lead profile optimized for high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marked by cathode band on package; carries reverse breakdown current |
| 2 (A) | Anode | Connected to ground or lower-potential rail; completes reverse-biased path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - enables use in energy-harvesting and coin-cell-powered systems without loading error |
| Optimized leakage profile | Intentionally elevated IR improves transient response and reduces high-frequency noise in feedback paths |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity robustness, and ESD immunity |
| Ultra-compact SOD523 footprint | 1.2 mm × 0.8 mm body size saves >60 % board area vs. SOD-123, critical for wearables and ECUs |
| Thermal performance | Rth(j-a) = 350 K/W with 35 mm² cathode Cu - enables higher sustained power in constrained thermal environments |
Applications
| Automotive Body Control Module | Portable Gas Sensor Interface |
|---|---|
Use Scenario: Voltage reference for analog front-end of LIN-based door module MCU supplying internal ADC and LDO enable logic. IC Role / Device Role / Timing Role: Zener shunt regulator establishing stable 2.0 V reference for precision threshold detection and supply supervision. Use Value: ±5 % tolerance and AEC-Q101 compliance ensure functional safety compliance while SOD523 footprint fits tight connector-side layout constraints. |
Use Scenario: Biasing circuit for electrochemical CO sensor requiring stable low-voltage excitation in Bluetooth LE-enabled handheld detector. IC Role / Device Role / Timing Role: Low-current Zener reference generating 2.0 V excitation voltage from 3.3 V rail using high-impedance divider. Use Value: 50 µA test current minimizes battery drain; elevated leakage suppresses sensor signal noise without external filtering. |
| Industrial IoT Edge Node | Medical Wearable Power Monitor |
Use Scenario: Reference source for ultra-low-power microcontroller's internal voltage monitor during deep-sleep wake-up event detection. IC Role / Device Role / Timing Role: Shunt regulator maintaining known voltage level across sleep-state leakage paths to trigger wake-on-voltage-drop logic. Use Value: Stable 2.0 V regulation at sub-100 µA currents enables deterministic wake timing with <1 µA added system leakage. |
Use Scenario: Precision voltage clamp in rechargeable LiPo battery fuel gauge circuit protecting ADC input during charge termination detection. IC Role / Device Role / Timing Role: Overvoltage protection element limiting ADC input to 2.0 V while allowing full-scale measurement of 0–4.2 V battery range via scaling resistor. Use Value: Tight 1.88–2.12 V tolerance ensures consistent trip point; 0.9 V forward drop prevents false triggering during polarity reversal events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX58550-B2V0-Q | ±2 % tolerance (vs. ±5 %), tighter VZ spread (1.96–2.04 V), lower leakage current | Suitable where higher reference accuracy is required, but less optimal for noise-sensitive fast-switching nodes | Select when absolute voltage precision outweighs noise suppression needs |
| MMSZ5221BT1G | 2.4 V nominal, SOD-123 package, 500 mW Ptot, ±5 %, 100 µA test current | Larger footprint and higher bias current limit use in space-constrained or ultra-low-power designs | Choose only if 2.4 V regulation and legacy SOD-123 compatibility are mandatory |
Compared with BZX58550-B2V0-Q, the C2V0-Q trades absolute accuracy for improved dynamic behavior; versus MMSZ5221BT1G, it delivers 33 % smaller footprint and 50 % lower test current-critical for next-generation miniaturized and battery-limited systems.
Availability
BZX58550-C2V0-Q is available at Aetrix Electronics and suitable for automotive body electronics, portable gas sensing, industrial edge nodes, and medical wearable power monitoring requiring stable component supply across long product lifecycles.
Supply support for BZX58550-C2V0-Q 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 specializing in high-performance, reliable discrete, logic, and MOSFET devices, with leadership in automotive-qualified components and energy-efficient solutions.
The BZX58550-Q series belongs to Nexperia's AEC-Q101-qualified Zener regulator portfolio, engineered specifically for low-bias, space-constrained automotive and portable applications demanding precision, noise resilience, and thermal robustness.
FAQ
What is the maximum continuous reverse power dissipation for BZX58550-C2V0-Q at 70 °C ambient?
At 70 °C ambient, derated power dissipation is approximately 225 mW, calculated using the 300 mW rating at 25 °C and thermal resistance of 350 K/W. This assumes mounting on FR4 PCB with 35 mm² cathode copper area and accounts for junction-to-ambient thermal gradient.
Does BZX58550-C2V0-Q support bidirectional ESD protection?
No - it is a unidirectional Zener diode rated only for reverse-biased regulation and forward conduction. Its design does not meet IEC 61000-4-2 ESD protection requirements; dedicated TVS diodes like PESD5V0S1BA should be used for bidirectional ESD clamping.
How does the "intentional minor rise of leakage current" benefit circuit performance?
This controlled increase in reverse leakage (per AN90031) reduces minority-carrier lifetime, enabling faster turn-off during transient events and lowering high-frequency impedance in regulation loops - directly improving noise rejection in sensor bias and reference applications.
Can BZX58550-C2V0-Q be used in parallel for higher power handling?
No - Zener diodes exhibit negative temperature coefficient and mismatched VZ tolerances, causing current hogging and thermal runaway when paralleled. For higher power, use a single higher-rated device or active regulation with a transistor-based shunt.
BZX58550-C2V0-QX 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):
- 2 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 7 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
BZX58550-C2V0-QX FAQ
1.How can I place an order for BZX58550-C2V0-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX58550-C2V0-QX 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-C2V0-QX reliable?
The price and inventory of BZX58550-C2V0-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX58550-C2V0-QX is usually 5 days.
3.What payment methods are accepted for BZX58550-C2V0-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX58550-C2V0-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX58550-C2V0-QX?
BZX58550-C2V0-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX58550-C2V0-QX 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-C2V0-QX?
For technical support, including BZX58550-C2V0-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX58550-C2V0-QX requirements.
6.How does Aetrix verify that BZX58550-C2V0-QX is sourced from the original manufacturer or authorized distributors?
All BZX58550-C2V0-QX 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-C2V0-QX meets industry standards.
7.What is the process for return or replacement of BZX58550-C2V0-QX?
All BZX58550-C2V0-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZX58550-C2V0-QX, 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-C2V0-QX part is unused and in its original packaging.
Return procedure for BZX58550-C2V0-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX58550-C2V0-QX Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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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
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BZT52C3V6LP-7
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SMAZ12-13-F
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