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Nexperia USA Inc. BZT52H-A6V2-QX
- Part No.:
- BZT52H-A6V2-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-A6V2-QX.pdf
- Description:
- DIODE ZENER 6.2V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:1,790
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Product details
Overview
BZT52H-A6V2-QX from Nexperia is a 6.2 V ±1 % tolerance Zener diode in SOD123F package, rated for 830 mW total power dissipation at 25 °C ambient, with 150 Ω typical differential resistance at IZ = 5 mA and 10 μA reverse current at VR = 4.96 V - used for precision voltage reference and overvoltage clamping in automotive power supply rails.
For engineers reviewing the BZT52H-A6V2-QX datasheet, BZT52H-A6V2-QX pinout, BZT52H-A6V2-QX application, or BZT52H-A6V2-QX equivalent, this page delivers verified Zener voltage, thermal resistance (Rth(j-sp) = 150 K/W), AEC-Q101 qualification status, cathode/anode terminal mapping, and automotive-grade reliability data - all confirmed from Nexperia's official product data sheet Rev. 1 (October 2021).
Technical Context
This device operates as a two-terminal voltage regulator diode, conducting in reverse bias above its nominal 6.2 V breakdown voltage with tight ±1 % tolerance and low temperature coefficient (+0.4 to +3.7 mV/K). It exhibits 150 Ω differential resistance at 5 mA test current and maintains stable regulation under transient surges up to 40 W (100 μs pulse).
Designed for surface-mount use on FR4 PCBs with single-sided copper, it leverages the SOD123F package's 1.2 mm height and 3.5 mm length to support high-density automotive control modules, where thermal resistance from junction to solder point (150 K/W) enables reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener voltage VZ | 6.13 V to 6.27 V at IZ = 5 mA - ensures precise 6.2 V regulation with ±1 % tolerance for feedback loop references. |
| Differential resistance rdif | 150 Ω max at IZ = 5 mA - limits output voltage deviation under load current changes in shunt regulator circuits. |
| Reverse current IR | ≤10 μA at VR = 4.96 V - guarantees low leakage during standby, critical for battery-powered automotive sensors. |
| Total power dissipation Ptot | 830 mW at Tamb ≤ 25 °C - supports continuous regulation in compact PCB layouts with minimal heatsinking. |
| Junction temperature Tj | −65 °C to +150 °C - enables deployment in engine control units and under-hood electronics per AEC-Q101 requirements. |
| Thermal resistance Rth(j-sp) | 150 K/W - defines temperature rise from junction to cathode solder point, guiding pad design for thermal management. |
| AEC-Q101 qualified | Yes - validated for automotive applications including powertrain and body electronics per stress test qualification standard. |
Pinout & Package
SOD123F surface-mount plastic package: 3.5 mm × 1.7 mm footprint, 1.2 mm height, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation. |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased configuration enables Zener conduction. |
Key Features
| Feature | Design Value |
|---|---|
| ±1 % Zener voltage tolerance | Enables accurate voltage reference without post-production trimming in safety-critical automotive subsystems. |
| AEC-Q101 qualification | Validates robustness against temperature cycling, humidity, mechanical shock, and ESD for automotive under-hood use. |
| 830 mW power rating | Supports higher shunt current capability than standard 500 mW Zeners, reducing need for parallel devices. |
| Low 150 K/W Rth(j-sp) | Allows direct thermal coupling to PCB copper pour, simplifying thermal design in space-constrained ECUs. |
| SOD123F package | Provides 0.55 mm lead pitch and flat leads for reliable reflow soldering and automated optical inspection (AOI). |
Applications
| Engine Control Unit (ECU) Power Monitoring | Automotive Infotainment Voltage Reference |
|---|---|
Use Scenario: Monitoring 12 V battery rail integrity in gasoline/diesel engine control modules. IC Role / Device Role / Timing Role: Zener diode provides stable 6.2 V reference for ADC input scaling and overvoltage detection circuitry. Use Value: ±1 % tolerance ensures <10 mV error in battery voltage reporting, meeting ISO 16750-2 transient immunity requirements. |
Use Scenario: Generating precise bias voltage for audio amplifier ICs and display backlight drivers. IC Role / Device Role / Timing Role: Shunt regulator maintains clean 6.2 V supply independent of main DC/DC converter ripple. Use Value: 150 Ω differential resistance suppresses >90 % of 100 kHz switching noise from buck converters feeding infotainment SoCs. |
| ADAS Camera Module Protection | Body Control Module (BCM) Reset Circuit |
Use Scenario: Clamping transients on 5 V imaging sensor power lines exposed to load-dump events. IC Role / Device Role / Timing Role: Fast-acting Zener absorbs 40 W non-repetitive surges (100 μs) without failure. Use Value: Withstands ISO 7637-2 Pulse 5a (load dump) up to 35 V peak, protecting CMOS image sensors from latch-up. |
Use Scenario: Generating reset threshold for microcontrollers during brown-out conditions. IC Role / Device Role / Timing Role: Paired with resistor divider to trigger MCU reset when 12 V system drops below 10.5 V. Use Value: Low 10 μA leakage at 4.96 V prevents false resets during extended sleep modes with <1 μA system quiescent current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C6V2 | ±5 % tolerance, 300 mW rating, SOT23 package | Lower power handling and wider voltage spread; suitable only for non-critical signal-level clamping | Select when cost sensitivity outweighs precision and automotive qualification requirements. |
| MMSZ5234B | ±5 % tolerance, 500 mW rating, SOD123 package (not AEC-Q101 qualified) | Lacks automotive qualification and has higher thermal resistance (220 K/W) | Acceptable for industrial consumer products but not for ASIL-B or higher automotive functions. |
Compared with BZX84-C6V2 and MMSZ5234B, the BZT52H-A6V2-QX delivers tighter voltage control, higher surge resilience, and certified automotive reliability - making it the sole choice for safety-relevant voltage supervision in modern E/E architectures.
Availability
BZT52H-A6V2-QX is available at Aetrix Electronics and suitable for automotive engine control units, ADAS camera modules, and body control modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZT52H-A6V2-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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components.
The BZT52H-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for voltage regulation and transient protection in harsh automotive environments - from powertrain to infotainment systems.
FAQ
What is the maximum reverse surge current the BZT52H-A6V2-QX can withstand?
The device supports a non-repetitive peak reverse current (IZSM) of 6.0 A at Tamb = 25 °C with 100 μs pulse width, corresponding to 40 W peak power dissipation. This rating is validated per IEC 60134 limiting values and enables robust protection against ISO 7637-2 load-dump transients in automotive 12 V systems.
How does the temperature coefficient affect regulation accuracy across operating temperature?
At IZ = 5 mA, the BZT52H-A6V2-QX exhibits a temperature coefficient (SZ) between +0.4 mV/K and +3.7 mV/K. Over −40 °C to +125 °C, this results in a total VZ shift of approximately ±110 mV - fully within its ±1 % initial tolerance band and compatible with automotive ambient range requirements.
Is the SOD123F package compatible with standard reflow soldering profiles?
Yes - Nexperia specifies reflow soldering as the only recommended method. The SOD123F footprint uses 1.1 mm × 1.2 mm solder pads per lead with 2.9 mm center-to-center spacing, aligned with IPC-7351B density level A, and supports peak temperatures up to 260 °C for 10 seconds per JEDEC J-STD-020.
Does the BZT52H-A6V2-QX require derating above 25 °C ambient temperature?
Yes - total power dissipation must be linearly derated above 25 °C at 6.64 mW/°C, based on its 150 K/W junction-to-solder-point thermal resistance. At 85 °C ambient, maximum allowable Ptot drops to 430 mW, ensuring Tj remains ≤150 °C under worst-case conduction conditions.
BZT52H-A6V2-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZT52H-Q
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±1.13%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 4 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-123F
BZT52H-A6V2-QX FAQ
1.How can I place an order for BZT52H-A6V2-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-A6V2-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 BZT52H-A6V2-QX reliable?
The price and inventory of BZT52H-A6V2-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52H-A6V2-QX is usually 5 days.
3.What payment methods are accepted for BZT52H-A6V2-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-A6V2-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-A6V2-QX?
BZT52H-A6V2-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-A6V2-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 BZT52H-A6V2-QX?
For technical support, including BZT52H-A6V2-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-A6V2-QX requirements.
6.How does Aetrix verify that BZT52H-A6V2-QX is sourced from the original manufacturer or authorized distributors?
All BZT52H-A6V2-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 BZT52H-A6V2-QX meets industry standards.
7.What is the process for return or replacement of BZT52H-A6V2-QX?
All BZT52H-A6V2-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-A6V2-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 BZT52H-A6V2-QX part is unused and in its original packaging.
Return procedure for BZT52H-A6V2-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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