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Nexperia USA Inc. BZT5250H-C8V2-QX
- Part No.:
- BZT5250H-C8V2-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C8V2-QX.pdf
- Description:
- DIODE ZENER 8.2V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,556
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Product details
Overview
BZT5250H-C8V2-QX from Nexperia is a low-current Zener diode in SOD123F package, designed for precision voltage regulation at 8.2 V nominal with ±5 % tolerance, specified at 50 µA test current, and qualified to AEC-Q101 for automotive power rail stabilization and sensor biasing.
For engineers reviewing the BZT5250H-C8V2-QX datasheet, BZT5250H-C8V2-QX pinout, BZT5250H-C8V2-QX application, or BZT5250H-C8V2-QX equivalent, this device supports low-power voltage reference design, battery-powered sensor conditioning, and ECU supply rail clamping where tight leakage control and thermal stability are critical.
Technical Context
This Zener operates as a two-terminal shunt regulator with cathode-anode polarity, maintaining stable reverse breakdown at 8.2 V (min 7.79 V, max 8.61 V) under IZ = 50 µA. Its differential resistance is ≤80 Ω at IZ = 5 mA, and temperature coefficient is +3.2 mV/K - enabling predictable drift compensation in ambient ranges from −55 °C to +150 °C.
It delivers 830 mW total power dissipation on FR4 PCB with 1 cm² cathode pad, and exhibits 150 K/W junction-to-solder-point thermal resistance. The intentional minor leakage rise improves switching speed and noise reduction per AN90031, distinguishing it from standard B-series variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 8.2 V (min 7.79 V, max 8.61 V at IZ = 50 µA) - sets precise clamping level for 9 V rail protection |
| Tolerance | ±5 % - enables cost-optimized selection for non-critical reference applications |
| Differential Resistance | ≤80 Ω at IZ = 5 mA - ensures minimal output impedance shift under load variation |
| Test Current | 50 µA - allows ultra-low-bias operation in energy-constrained IoT sensor nodes |
| Power Dissipation | 830 mW at Tamb ≤ 25 °C with 1 cm² cathode pad - supports sustained regulation without heatsinking |
| Thermal Resistance | 150 K/W (junction-to-solder point) - enables accurate thermal modeling for PCB layout |
| Leakage Optimization | Intentional minor IR rise per AN90031 - reduces switching transients and broadband noise in signal paths |
Pinout & Package
SOD123F surface-mount plastic package: 2.6 mm × 1.6 mm × 1.1 mm body, flat lead, single-sided copper FR4 mounting, cathode marked by bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; requires 1 cm² copper pad for rated Ptot |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased configuration establishes Zener conduction path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood and infotainment systems with full stress-test compliance |
| Low test current operation | Stable regulation at 50 µA enables use in microamp-level standby circuits without loading error |
| Optimized leakage profile | Controlled IR rise improves transient response and reduces high-frequency noise coupling in analog front-ends |
| Thermal performance | 70 K/W junction-to-pad thermal resistance enables accurate derating up to 125 °C ambient |
| Small-form-factor SMD | SOD123F footprint fits high-density layouts while maintaining solder-joint reliability per J-STD-020 |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing 8.2 V reference for LIN bus transceiver biasing in door module ECUs. IC Role / Device Role / Timing Role: Shunt voltage regulator providing stable local reference independent of main 12 V rail fluctuations. Use Value: Maintains <±1 % reference accuracy across −40 °C to +105 °C, reducing calibration drift in production. |
Use Scenario: Biasing thermistor bridge in battery-powered environmental monitor with 10-year shelf life. IC Role / Device Role / Timing Role: Low-current Zener reference establishing precise excitation voltage for ratiometric ADC measurement. Use Value: Draws only 50 µA at regulation, extending coin-cell lifetime beyond 5 years without compromising reference stability. |
| Portable Medical Diagnostic Device | Smart Meter Power Supply Monitoring |
Use Scenario: Clamping auxiliary 8.2 V rail feeding op-amp comparators in handheld pulse oximeter. IC Role / Device Role / Timing Role: Overvoltage protector and noise-reduced reference source for analog signal chain. Use Value: Optimized leakage behavior suppresses switching noise from DC-DC converters, improving SNR by ≥12 dB. |
Use Scenario: Monitoring 9 V backup battery voltage in AMI smart meter during mains failure. IC Role / Device Role / Timing Role: Precision threshold detector triggering low-battery alert at 8.2 V ±5 %. Use Value: Tight 5 % tolerance eliminates need for external trimming resistors, reducing BOM count and calibration steps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT5250H-B8V2-Q | ±2 % tolerance, lower leakage, no intentional IR optimization | Better for precision references requiring tighter initial accuracy; unsuitable where fast switching/noise reduction is prioritized | Select when absolute voltage accuracy outweighs transient noise performance |
| MMSZ5231BT1G | Same 8.2 V nominal, ±5 %, but SOD-123 package (not SOD123F), 500 mW Ptot, no AEC-Q101 qualification | Limited to commercial-grade applications; lower power handling restricts use in sustained-clamp scenarios | Choose only for cost-sensitive non-automotive designs with <500 mW thermal budget |
Compared with BZT5250H-C8V2-QX, the BZT5250H-B8V2-Q offers higher initial accuracy but lacks leakage tuning for noise-sensitive analog rails, while MMSZ5231BT1G sacrifices automotive qualification and thermal capability for lower unit cost in consumer-grade systems.
Availability
BZT5250H-C8V2-QX is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, portable medical diagnostics, and smart utility metering requiring stable component supply with AEC-Q101 assurance and long-term lifecycle continuity.
Supply support for BZT5250H-C8V2-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 delivering high-performance logic, discrete, and MOSFET solutions with focus on efficiency, reliability, and miniaturization for automotive and industrial markets.
This device belongs to the BZT5250H-Q series of low-current Zener diodes engineered specifically for automotive-grade voltage regulation and noise-sensitive analog biasing in space-constrained SMD designs.
FAQ
What is the maximum continuous reverse power dissipation for BZT5250H-C8V2-QX at 85 °C ambient?
At 85 °C ambient, the device's maximum continuous reverse power dissipation is derated to 540 mW, calculated using its 830 mW rating at 25 °C and thermal resistance of 150 K/W (junction-to-solder point), ensuring safe operation without exceeding 150 °C junction temperature.
How does the "intentional minor rise of leakage current" affect circuit performance?
This controlled leakage increase, documented in AN90031, reduces diode capacitance transients during switching events, lowering high-frequency noise injection into adjacent analog circuits - particularly beneficial in sensor signal chains sharing PCB ground with digital subsystems.
Can BZT5250H-C8V2-QX replace BZT5250H-B8V2-Q in an existing design?
Yes, electrically - both share identical pinout, package, and nominal voltage - but the C-series introduces optimized leakage for noise reduction, while the B-series provides tighter ±2 % tolerance. System-level validation is required if noise immunity or initial accuracy is critical.
Is the SOD123F package compatible with standard reflow profiles for lead-free assembly?
Yes - Nexperia specifies reflow soldering as the only recommended method, and the SOD123F footprint in Figure 10 complies with IPC-7351B Class B standards, supporting peak temperatures up to 260 °C for JEDEC J-STD-020-compliant lead-free processes without solder joint or package integrity issues.
BZT5250H-C8V2-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZT5250H-Q
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 8.2 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 6.2 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
BZT5250H-C8V2-QX FAQ
1.How can I place an order for BZT5250H-C8V2-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C8V2-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 BZT5250H-C8V2-QX reliable?
The price and inventory of BZT5250H-C8V2-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-C8V2-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-C8V2-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C8V2-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C8V2-QX?
BZT5250H-C8V2-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C8V2-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 BZT5250H-C8V2-QX?
For technical support, including BZT5250H-C8V2-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C8V2-QX requirements.
6.How does Aetrix verify that BZT5250H-C8V2-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C8V2-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 BZT5250H-C8V2-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-C8V2-QX?
All BZT5250H-C8V2-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C8V2-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 BZT5250H-C8V2-QX part is unused and in its original packaging.
Return procedure for BZT5250H-C8V2-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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