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Nexperia USA Inc. BZX58550-B13-QX
- Part No.:
- BZX58550-B13-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX58550-B13-QX.pdf
- Description:
- DIODE ZENER 13V 270MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:8,205
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Product details
Overview
BZX58550-B13-QX from Nexperia is a low-current Zener voltage regulator diode in SOD523 (SC-79) package, designed for precision biasing and voltage reference in space-constrained, battery-powered systems. It delivers a nominal 13 V regulation at 50 µA test current, with ±2 % tolerance, 300 mW total power dissipation, and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZX58550-B13-QX datasheet, BZX58550-B13-QX pinout, BZX58550-B13-QX application, or BZX58550-B13-QX equivalent, key selection criteria include low-test-current regulation stability, ultra-small SMD footprint, thermal resistance under PCB copper area constraints, and automotive-grade reliability validation.
Technical Context
This device operates as a two-terminal shunt voltage reference, maintaining stable reverse breakdown across a 50 µA to 5 mA operating range. Its differential resistance is ≤170 Ω at IZ = 5 mA, and temperature coefficient is +7.0 mV/K - enabling predictable drift compensation in ambient-temperature-varying circuits.
The diode exhibits low capacitance (≤80 pF at VR = 0 V, f = 1 MHz) and fast switching response due to intentional leakage optimization per AN90031. Junction-to-ambient thermal resistance is 350 K/W with 35 mm² cathode copper area, supporting reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 13 V at IZ = 50 µA - precise low-bias reference point for sensor biasing or microcontroller reset circuits |
| Tolerance | ±2 % - tight regulation window enabling accurate voltage thresholding without post-calibration |
| Power Dissipation | 300 mW at Tamb ≤ 25 °C with 35 mm² cathode copper - supports continuous operation in compact automotive ECUs |
| Differential Resistance | ≤170 Ω at IZ = 5 mA - ensures minimal output voltage shift under load transients |
| Reverse Leakage | ≤0.05 µA at VR = 11.7 V - enables ultra-low quiescent current in always-on monitoring circuits |
| Forward Voltage | ≤0.9 V at IF = 10 mA - allows safe forward conduction during power-up sequencing or polarity protection |
| Thermal Resistance | 350 K/W (junction-to-ambient, 35 mm² Cu) - defines maximum allowable power under real PCB layout conditions |
Pinout & Package
Package: SOD523 (SC-79), plastic surface-mounted, 2-lead, 1.2 mm × 0.8 mm × 0.6 mm body. Cathode identified by marking bar on package top.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated voltage node; carries reverse breakdown current; marked side of package |
| 2 (A) | Anode | Connected to ground or lower-potential rail; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current regulation | Specified at 50 µA - enables stable reference generation in µA-level standby modes of IoT sensors |
| AEC-Q101 qualification | Stress-tested per automotive discrete semiconductor standard - validated for engine control, body electronics, and ADAS modules |
| Optimized leakage profile | Intentional minor rise per AN90031 - reduces switching noise and improves transient response in feedback loops |
| Ultra-small SMD footprint | SOD523 (1.2 × 0.8 mm) - saves >60 % board area vs. SOD-123, critical for wearable and module-integrated designs |
| Wide voltage range support | 1.8 V to 51 V variants available - allows single-family reuse across 3.3 V, 5 V, 12 V, and 24 V automotive domains |
Applications
| Automotive Cabin Sensor Biasing | Industrial PLC Input Protection |
|---|---|
Use Scenario: Providing stable 13 V reference to MEMS pressure sensor in HVAC control module. IC Role / Device Role / Timing Role: Shunt voltage reference regulating sensor excitation voltage independent of battery fluctuations. Use Value: Maintains <±0.26 V accuracy over −40 °C to +125 °C, ensuring sensor linearity compliance per ISO 16750-4. |
Use Scenario: Clamping 24 V digital input lines against ESD and load dump surges in modular I/O base. IC Role / Device Role / Timing Role: Low-leakage Zener clamp absorbing transient energy while preserving signal integrity. Use Value: Limits input voltage to ≤13.5 V with <0.05 µA leakage at 11.7 V, preventing false triggering in 24 V logic interfaces. |
| Portable Medical Pulse Oximeter | Smart Meter Reference Stability |
Use Scenario: Supplying precision bias to analog front-end op-amps in battery-powered pulse oximetry circuit. IC Role / Device Role / Timing Role: Low-current voltage reference stabilizing LED driver current sources. Use Value: Delivers 13 V ±2 % at 50 µA, enabling <0.5 % optical intensity repeatability across 10-year shelf life. |
Use Scenario: Stabilizing ADC reference voltage in revenue-grade electricity meter with extended temperature range. IC Role / Device Role / Timing Role: Temperature-compensated shunt reference minimizing VREF drift over −25 °C to +70 °C. Use Value: +7.0 mV/K coefficient enables predictable calibration offset correction, meeting IEC 62053-21 Class 0.2 accuracy. |
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-C13-Q | ±5 % tolerance (vs. ±2 %); identical 13 V nominal, SOD523 package, AEC-Q101 qualified | Acceptable where cost sensitivity outweighs precision requirement; higher IR (0.1 µA vs. 0.05 µA) | Select when budget constraints dominate and system-level calibration compensates for wider tolerance. |
| MMSZ5243B-7-F | 13 V ±5 %, SOD-123 package (2.7 × 1.4 mm), 500 mW Ptot, no AEC-Q101 qualification | Larger footprint; higher power handling; not automotive-qualified; higher rdiff (170 Ω vs. 170 Ω typical but less controlled) | Choose only for non-automotive industrial use requiring higher surge margin and board space availability. |
Compared with BZX58550-C13-Q, the BZX58550-B13-QX offers tighter regulation and lower leakage for high-accuracy sensing; versus MMSZ5243B-7-F, it provides automotive qualification and 45 % smaller footprint at the cost of 40 % lower power rating - making it optimal for space- and reliability-critical automotive modules.
Availability
BZX58550-B13-QX is available at Aetrix Electronics and suitable for automotive cabin electronics, portable medical instrumentation, smart utility metering, and industrial PLC input conditioning requiring stable component supply across extended temperature and lifecycle demands.
Supply support for BZX58550-B13-QX 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-enhancing components, delivering high-performance, reliable, and scalable solutions for automotive, industrial, and consumer markets.
The BZX58550-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for low-power, high-stability voltage reference and clamping in automotive electronics and portable battery-operated systems.
FAQ
What is the maximum reverse voltage this diode can sustain before breakdown?
The BZX58550-B13-QX has a nominal Zener voltage of 13 V at 50 µA, with a guaranteed working range of 12.35 V to 13.65 V (±2 %). Its absolute maximum reverse voltage is defined by the non-repetitive peak reverse power dissipation limit of 40 W for 100 µs pulses - not a DC rating. Continuous operation must remain within the 13 V regulation band and 300 mW thermal limit.
Can this diode be used in series or parallel configurations for higher voltage or current handling?
No - BZX58550-B13-QX is not characterized or recommended for series/parallel operation. Zener matching tolerances, thermal coupling imbalances, and differential resistance variations cause uneven current sharing. For higher voltage, select a single higher-VZ variant (e.g., BZX58550-B15-Q); for higher current, use an active regulator or higher-Ptot Zener like BZX84-C13.
How does the "intentional minor rise of leakage current" affect circuit performance?
Per AN90031, the controlled leakage increase reduces minority-carrier lifetime, lowering diode capacitance and improving switching speed. In practice, this yields faster transient response during voltage step changes and reduced high-frequency noise coupling - beneficial in feedback paths and precision analog signal chains, without compromising DC regulation accuracy.
Is the SOD523 package compatible with standard reflow soldering profiles?
Yes - the SOD523 package is qualified for lead-free reflow per J-STD-020. Recommended profile uses peak temperature ≤260 °C, time above liquidus 60–150 s, and ramp rates ≤3 °C/s. Figure 10 in the datasheet specifies exact solder land dimensions (1.2 mm × 0.5 mm pads, 0.4 mm spacing) to ensure reliable joint formation and avoid tombstoning.
BZX58550-B13-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX58550-Q
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 13 V
- Tolerance:
- ±2%
- Power - Max:
- 270 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 9.8 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-B13-QX FAQ
1.How can I place an order for BZX58550-B13-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX58550-B13-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-B13-QX reliable?
The price and inventory of BZX58550-B13-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-B13-QX is usually 5 days.
3.What payment methods are accepted for BZX58550-B13-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX58550-B13-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX58550-B13-QX?
BZX58550-B13-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX58550-B13-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-B13-QX?
For technical support, including BZX58550-B13-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX58550-B13-QX requirements.
6.How does Aetrix verify that BZX58550-B13-QX is sourced from the original manufacturer or authorized distributors?
All BZX58550-B13-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-B13-QX meets industry standards.
7.What is the process for return or replacement of BZX58550-B13-QX?
All BZX58550-B13-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZX58550-B13-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-B13-QX part is unused and in its original packaging.
Return procedure for BZX58550-B13-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX58550-B13-QX Tags
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MMBZ5240B-7-F
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Diodes Incorporated
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MMSZ5231B-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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