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Nexperia USA Inc. BZT5250H-B8V2-QX
- Part No.:
- BZT5250H-B8V2-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-B8V2-QX.pdf
- Description:
- DIODE ZENER 8.2V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:6,771
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Product details
Overview
BZT5250H-B8V2-QX from Nexperia is a low-current Zener diode in SOD123F package, providing precise 8.2 V voltage regulation at 50 µA test current, with ±2 % tolerance, 80 Ω differential resistance at 5 mA, and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZT5250H-B8V2-QX datasheet, BZT5250H-B8V2-QX pinout, BZT5250H-B8V2-QX application, or BZT5250H-B8V2-QX equivalent, this device serves as a stable reference in low-power bias networks, battery monitoring circuits, and ESD-protected sensor interfaces where tight voltage accuracy and low leakage are critical.
Technical Context
This Zener operates in reverse breakdown mode with a nominal Zener voltage of 8.2 V at IZ = 50 µA, exhibiting a temperature coefficient of +3.2 mV/K and typical junction capacitance of 150 pF at 0 V. Its low test current enables operation in micro-power systems without compromising regulation stability.
The device features intentional minor leakage optimization per AN90031 to reduce switching noise and improve transient response in signal conditioning paths. Thermal resistance from junction to solder point is 70 K/W, supporting reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.04 V to 8.36 V at IZ = 50 µA - ensures ±2 % regulation accuracy in low-bias reference designs |
| Differential Resistance (rdiff) | 80 Ω max at IZ = 5 mA - maintains stable output under small load variations |
| Temperature Coefficient (SZ) | +3.2 mV/K - enables predictable drift compensation in automotive ambient ranges |
| Reverse Current (IR) | 0.1 µA max at VR = 6.2 V - minimizes quiescent power loss in battery-powered systems |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C on FR4 PCB with 1 cm² cathode pad - supports compact thermal layout |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - allows use as polarity protection or clamping diode in dual-role circuits |
| Junction Temperature (Tj) | 150 °C maximum - enables deployment in under-hood automotive modules |
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 for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reverse-biased junction for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| Low 50 µA test current | Enables regulation in µA-level bias networks common in IoT sensors and ultra-low-power MCUs |
| Optimized leakage profile | Intentional minor IR rise improves switching speed and reduces broadband noise per AN90031 |
| ±2 % voltage tolerance | Reduces need for post-production trimming in precision reference applications |
| SOD123F footprint | Compatible with standard reflow processes and automated optical inspection (AOI) on high-density PCBs |
Applications
| Automotive Cabin Sensor Reference | Portable Medical Device Biasing |
|---|---|
|
Use Scenario: Stable 8.2 V reference for analog front-end of cabin temperature/humidity sensors in vehicle ECUs. IC Role / Device Role / Timing Role: Zener voltage reference supplying bias to op-amp input stages and ADC reference dividers. Use Value: ±2 % tolerance and +3.2 mV/K TC ensure <±10 mV drift over –40 °C to +125 °C, meeting ASIL-B functional safety margin requirements. |
Use Scenario: Low-current voltage clamp in disposable glucose meter analog signal chain powered by coin cell. IC Role / Device Role / Timing Role: Precision shunt regulator setting reference voltage for transimpedance amplifier feedback network. Use Value: 0.1 µA max reverse leakage at 6.2 V preserves >10-year battery life while maintaining 8.2 V accuracy at 50 µA operating point. |
| Industrial PLC Input Protection | Smart Meter Voltage Monitoring |
|
Use Scenario: Overvoltage clamp on 24 V DC input channel of programmable logic controller I/O module. IC Role / Device Role / Timing Role: Transient-suppressing Zener placed before TVS diode to absorb sustained overvoltage below surge threshold. Use Value: 830 mW Ptot rating allows continuous dissipation during brownout recovery, preventing latch-up in downstream LDOs. |
Use Scenario: Calibration reference for AC mains voltage sensing circuit in Class 0.5 smart electricity meters. IC Role / Device Role / Timing Role: Secondary reference stabilizing internal bandgap comparator against supply ripple. Use Value: 80 Ω rdiff limits output impedance shift to <0.4 mV per 1 mA load change, preserving meter accuracy across full dynamic range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5231BS-7-F | 8.2 V, ±5 % tolerance, 100 Ω rdiff, SOD-123 package, no AEC-Q101 qualification | Lower cost for non-automotive industrial use; lacks automotive reliability validation | Select when AEC-Q101 is not required and ±5 % tolerance suffices for cost-sensitive consumer designs |
| Vishay BZX84-C8V2-TP | 8.2 V, ±5 % tolerance, 90 Ω rdiff, SOT-23 package, AEC-Q101 qualified | Larger SOT-23 footprint increases board area; higher thermal resistance (200 K/W j-a) | Choose only if existing SOT-23 land pattern must be reused and thermal derating is acceptable |
Compared with BZT5250H-B8V2-QX, the MMBZ5231BS-7-F trades automotive qualification and tighter tolerance for lower unit cost, while the BZX84-C8V2-TP retains AEC-Q101 but sacrifices thermal performance and board space efficiency due to larger package and higher rdiff.
Availability
BZT5250H-B8V2-QX is available at Aetrix Electronics and suitable for automotive sensor modules, portable medical diagnostics, industrial PLC inputs, and smart metering systems requiring stable component supply across extended temperature and lifecycle demands.
Supply support for BZT5250H-B8V2-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 and advanced packaging.
The BZT5250H-Q series belongs to Nexperia's AEC-Q101-qualified Zener portfolio, engineered specifically for low-current, high-stability voltage reference and clamping in automotive and industrial edge-sensing applications.
FAQ
What is the maximum reverse voltage that can be continuously applied to BZT5250H-B8V2-QX without exceeding its power rating?
The device sustains 8.2 V Zener voltage at 50 µA, but continuous reverse voltage must be limited to maintain Ptot ≤ 830 mW. At 25 °C ambient on a standard FR4 PCB with 1 cm² cathode pad, maximum continuous reverse current is 101 mA (830 mW ÷ 8.2 V), assuming negligible forward conduction. Derating applies above 25 °C per Rth(j-sp) = 70 K/W.
How does the "intentional minor rise of leakage current" affect circuit performance in precision applications?
This design feature-documented in AN90031-slightly elevates IR near breakdown to reduce minority-carrier lifetime, yielding faster turn-on/turn-off transitions and lower broadband noise. In precision references, it improves transient rejection without degrading DC accuracy, as VZ remains tightly specified at 50 µA test current.
Can BZT5250H-B8V2-QX replace older BZT52-B8V2 variants in existing designs?
Yes, with verification of thermal layout: BZT5250H-B8V2-QX uses the same SOD123F package and shares identical pinning, voltage, and tolerance specs. However, its optimized leakage profile and AEC-Q101 qualification may require revalidation of noise-sensitive analog stages and automotive environmental stress testing.
What is the recommended reflow profile for soldering BZT5250H-B8V2-QX?
Nexperia specifies reflow soldering only, using the footprint in Figure 10: peak temperature ≤ 260 °C, time above 217 °C ≤ 60 seconds, ramp rate ≤ 3 °C/s. The SOD123F package is not rated for wave or hand soldering; thermal shock from non-reflow methods risks delamination or parametric shift.
BZT5250H-B8V2-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:
- ±2%
- 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-B8V2-QX FAQ
1.How can I place an order for BZT5250H-B8V2-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-B8V2-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-B8V2-QX reliable?
The price and inventory of BZT5250H-B8V2-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-B8V2-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-B8V2-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-B8V2-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-B8V2-QX?
BZT5250H-B8V2-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-B8V2-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-B8V2-QX?
For technical support, including BZT5250H-B8V2-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-B8V2-QX requirements.
6.How does Aetrix verify that BZT5250H-B8V2-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-B8V2-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-B8V2-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-B8V2-QX?
All BZT5250H-B8V2-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-B8V2-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-B8V2-QX part is unused and in its original packaging.
Return procedure for BZT5250H-B8V2-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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