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Nexperia USA Inc. BZT5250H-B2V2-QX
- Part No.:
- BZT5250H-B2V2-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-B2V2-QX.pdf
- Description:
- DIODE ZENER 2.2V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,472
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Product details
Overview
BZT5250H-B2V2-QX from Nexperia is a low-current Zener diode in SOD123F package, rated for 2.2 V nominal Zener voltage at 50 µA test current, with ±2 % tolerance, 830 mW total power dissipation, and AEC-Q101 qualification for automotive use - deployed in precision biasing and voltage reference circuits for battery-powered sensor nodes.
For engineers reviewing the BZT5250H-B2V2-QX datasheet, BZT5250H-B2V2-QX pinout, BZT5250H-B2V2-QX application, or BZT5250H-B2V2-QX equivalent, this page delivers verified Zener voltage, differential resistance, thermal resistance, leakage behavior, and automotive-grade reliability data required for low-power analog design validation and BOM selection.
Technical Context
This Zener diode operates as a two-terminal voltage reference with sharp reverse breakdown at 2.2 V (B-series ±2 %), specified at ultra-low 50 µA test current to minimize quiescent load in energy-constrained systems. Its differential resistance is ≤600 Ω at IZ = 50 µA, supporting stable regulation under light-load conditions.
The device features intentional minor leakage optimization per AN90031 for fast switching and noise reduction, and achieves Rth(j-a) = 330 K/W on FR4 PCB - enabling thermal-aware placement in compact automotive ECUs and portable instrumentation where ambient temperature ranges from −55 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 2.2 V nominal at IZ = 50 µA; tight ±2 % tolerance ensures predictable reference accuracy in low-bias circuits. |
| Differential Resistance rdiff | ≤600 Ω at IZ = 50 µA; maintains voltage stability against small current variations in sensing front-ends. |
| Forward Voltage VF | 0.9 V max at IF = 10 mA; enables reliable anode-cathode polarity verification during functional testing. |
| Total Power Dissipation Ptot | 830 mW at Tamb ≤ 25 °C; supports continuous operation in thermally constrained SMT layouts with 1 cm² cathode pad. |
| Junction Temperature Tj | 150 °C max; allows sustained operation in under-hood automotive environments without derating below −40 °C to +125 °C ambient. |
| Reverse Current IR | ≤1.0 µA at VR = 1.0 V; confirms low standby leakage critical for multi-year battery life in IoT endpoints. |
| Thermal Resistance Rth(j-a) | 330 K/W in free air; informs minimum copper area and airflow requirements for thermal compliance in sealed enclosures. |
Pinout & Package
SOD123F surface-mount plastic package: 2.6 mm × 1.6 mm × 1.1 mm body, flat lead profile, 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 and polarity-sensitive layout. |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reverse-biased junction enabling Zener breakdown at 2.2 V. |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current specification | Rated at 50 µA - reduces loading error in high-impedance voltage divider references and microamp-level sensor bias networks. |
| AEC-Q101 qualification | Validated for automotive applications including body control modules and ADAS sensor interfaces requiring extended temperature and reliability compliance. |
| Optimized leakage profile | Intentional minor rise in leakage per AN90031 improves transient response and reduces broadband noise in precision analog signal chains. |
| Tight voltage tolerance | ±2 % (B-series) enables single-bin selection without post-assembly calibration in factory-programmed medical or industrial sensors. |
Applications
| Automotive Cabin Sensors | Portable Gas Detectors |
|---|---|
|
Use Scenario: Reference voltage generation for MEMS pressure and humidity sensors in HVAC control units. IC Role / Device Role / Timing Role: Two-terminal Zener reference providing stable 2.2 V bias to ADC input buffers and op-amp gain stages. Use Value: ±2 % tolerance and low 50 µA test current ensure consistent sensor offset correction across −40 °C to +85 °C without trimming resistors. |
Use Scenario: Low-power voltage reference in electrochemical gas sensor signal conditioning circuits powered by coin cells. IC Role / Device Role / Timing Role: Precision shunt regulator establishing reference point for transimpedance amplifier feedback networks. Use Value: 1.0 µA max reverse current at 1.0 V enables >10-year battery life while maintaining <0.5 % reference drift over shelf life. |
| Industrial RTD Signal Chains | Medical Wearable Biopotential Front-Ends |
|
Use Scenario: Excitation voltage stabilization for 3-wire Pt100 RTD bridges in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Low-noise Zener reference sourcing constant current through RTD element via precision resistor network. Use Value: Optimized leakage and 600 Ω differential resistance suppress 1/f noise and maintain bridge linearity within 0.1 % full-scale error. |
Use Scenario: Bias voltage source for ultra-low-noise instrumentation amplifiers in ECG/EEG electrode interface ICs. IC Role / Device Role / Timing Role: Shunt regulator supplying clean 2.2 V to amplifier supply rails and reference pins in battery-operated patches. Use Value: AEC-Q101 qualification and 150 °C junction rating support sterilization cycles and long-term biocompatible housing integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT5250H-B2V2-Q | Same electrical specs and SOD123F package; differs only in marking code (V2 vs. QX) and internal traceability batch coding. | No functional difference; both qualified to AEC-Q101 and share identical thermal and leakage characteristics. | Select BZT5250H-B2V2-QX when full Nexperia traceability and latest Rev. 2 documentation alignment are required. |
| MMSZ5222BT1G | 2.2 V Zener, ±5 % tolerance, SOD-123 package, 500 mW Ptot, not AEC-Q101 qualified. | Limited to commercial-grade portable electronics; unsuitable for automotive or industrial temperature cycling. | Choose only for cost-sensitive non-automotive designs where ±5 % tolerance and absence of automotive qualification are acceptable. |
Compared with BZT5250H-B2V2-QX, the BZT5250H-B2V2-Q offers identical performance with alternate traceability, while MMSZ5222BT1G trades AEC-Q101 compliance and tighter tolerance for lower unit cost in non-automotive contexts.
Availability
BZT5250H-B2V2-QX is available at Aetrix Electronics and suitable for automotive cabin sensors, portable gas detectors, industrial RTD signal chains, and medical wearable biopotential front-ends requiring stable component supply with full AEC-Q101 traceability and Rev. 2 datasheet compliance.
Supply support for BZT5250H-B2V2-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 technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
BZT5250H-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode product line, engineered specifically for low-current voltage regulation in space-constrained, thermally demanding automotive and portable electronics applications.
FAQ
What is the Zener voltage tolerance for BZT5250H-B2V2-QX?
The BZT5250H-B2V2-QX has a nominal Zener voltage of 2.2 V with ±2 % tolerance (B-series), measured at IZ = 50 µA and Tj = 25 °C. This tight tolerance eliminates need for external trimming in precision analog reference designs and ensures consistent performance across production batches.
Is BZT5250H-B2V2-QX suitable for automotive applications?
Yes - it is fully qualified to AEC-Q101 for stress testing of discrete semiconductors and recommended for automotive use. It operates across −55 °C to +150 °C junction temperature, supports reflow soldering per JEDEC standards, and meets automotive reliability requirements for under-hood and cabin modules.
How does the 50 µA test current affect circuit design?
The 50 µA Zener test current enables accurate voltage regulation in ultra-low-power circuits such as battery-backed sensors and energy-harvesting systems. Designers must ensure bias networks deliver ≥50 µA to maintain specified VZ, while leveraging the diode's low leakage (<1 µA at 1 V) to minimize standby drain.
What is the thermal resistance from junction to ambient for this device?
Rth(j-a) is 330 K/W in free air on standard FR4 PCB with single-sided copper and tin plating. When mounted with a 1 cm² cathode pad, Rth(j-sp) drops to 70 K/W - allowing designers to calculate worst-case junction temperature rise using Ptot = 830 mW and ambient conditions per IEC 60134 limiting values.
BZT5250H-B2V2-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):
- 2.2 V
- Tolerance:
- ±2%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 4 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-123F
BZT5250H-B2V2-QX FAQ
1.How can I place an order for BZT5250H-B2V2-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-B2V2-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-B2V2-QX reliable?
The price and inventory of BZT5250H-B2V2-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-B2V2-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-B2V2-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-B2V2-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-B2V2-QX?
BZT5250H-B2V2-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-B2V2-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-B2V2-QX?
For technical support, including BZT5250H-B2V2-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-B2V2-QX requirements.
6.How does Aetrix verify that BZT5250H-B2V2-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-B2V2-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-B2V2-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-B2V2-QX?
All BZT5250H-B2V2-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-B2V2-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-B2V2-QX part is unused and in its original packaging.
Return procedure for BZT5250H-B2V2-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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