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Nexperia USA Inc. BZT5250H-C30-QX
- Part No.:
- BZT5250H-C30-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C30-QX.pdf
- Description:
- DIODE ZENER 30V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:7,307
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Product details
Overview
BZT5250H-C30-QX from Nexperia is a low-current Zener diode in SOD123F package, rated for 30 V nominal Zener voltage (±5 % tolerance), 50 µA test current, and 830 mW total power dissipation. It serves as a precision voltage reference or regulation element in low-bias circuits, especially in automotive body control modules requiring AEC-Q101-qualified components.
For engineers reviewing the BZT5250H-C30-QX datasheet, BZT5250H-C30-QX pinout, BZT5250H-C30-QX application, or BZT5250H-C30-QX equivalent, key selection criteria include its 30 V Zener voltage at 50 µA, ±5 % tolerance, 300 Ω differential resistance at 5 mA, 0.05 µA reverse leakage at VR = 22.8 V, and AEC-Q101 qualification for under-hood use.
Technical Context
This Zener diode operates with a specified test current of 50 µA-enabling stable regulation in ultra-low-power sensor biasing and microcontroller reset circuits. Its thermal resistance from junction to solder point is 150 K/W, supporting reliable operation up to 150 °C junction temperature.
The device exhibits a temperature coefficient of +0.4 mV/K at 30 V and diode capacitance of 50 pF at 1 MHz and 0 V, making it suitable for noise-sensitive analog references where capacitance and thermal drift must be tightly controlled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 28.5 V to 31.5 V at IZ = 50 µA - defines regulation threshold with ±5 % tolerance for predictable clamping in 12 V/24 V automotive systems |
| Differential Resistance (rdiff) | 300 Ω max at IZ = 5 mA - limits output impedance impact on reference stability under load variation |
| Reverse Leakage Current (IR) | 0.05 µA max at VR = 22.8 V - ensures minimal quiescent current draw in battery-backed circuits |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - supports continuous operation in compact PCB layouts with 1 cm² cathode pad |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - enables low-loss anode-side biasing in dual-rail protection schemes |
| Junction Temperature (Tj) | 150 °C max - allows deployment in engine compartment environments per AEC-Q101 stress testing |
Pinout & Package
SOD123F surface-mount plastic package: 2.6 mm × 1.6 mm × 1.1 mm body, flat lead profile optimized for automated reflow assembly and space-constrained automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marked by bar on package; carries reverse-biased Zener current during regulation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes bias path for Zener conduction under overvoltage conditions |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including body electronics, lighting control, and infotainment power rails |
| Low test current (50 µA) | Enables stable voltage reference in micropower sensor interfaces without loading weak bias sources |
| Intentional leakage optimization | Minor rise in IR improves switching speed and reduces high-frequency noise in feedback paths |
| Small SOD123F footprint | Reduces board area by >30 % vs. DO-35; compatible with standard 0805 reflow profiles and AOI inspection |
Applications
| Automotive Door Module Reference | Industrial Sensor Biasing |
|---|---|
Use Scenario: Provides stable 30 V reference for window motor position sensing circuitry in AEC-Q101-compliant door control units. IC Role / Device Role / Timing Role: Zener voltage reference for ADC input scaling and comparator threshold setting. Use Value: ±5 % tolerance and 0.05 µA leakage ensure accurate position reporting across -40 °C to +125 °C ambient range. |
Use Scenario: Supplies precise bias voltage to MEMS pressure transducer bridge in factory automation gauges. IC Role / Device Role / Timing Role: Low-current voltage regulator establishing excitation potential for Wheatstone bridge. Use Value: 50 µA test current matches transducer's microamp-level supply requirement, minimizing self-heating error. |
| Portable Medical Monitor Reset Circuit | Smart Meter Voltage Supervisor |
Use Scenario: Generates clean 30 V reset threshold for ultra-low-power ECG front-end MCU during cold-start battery conditions. IC Role / Device Role / Timing Role: Zener-based reset supervisor ensuring deterministic wake-up when main rail exceeds 30 V. Use Value: 300 Ω rdiff and 0.9 V VF enable fast, low-jitter reset assertion without external pull-up resistors. |
Use Scenario: Clamps auxiliary 30 V rail in electricity meter power supply to protect metrology ICs from transient overvoltage. IC Role / Device Role / Timing Role: Overvoltage protection element shunting surge energy into ground via series resistor. Use Value: 830 mW Ptot and 40 W non-repetitive peak power rating handle IEC 61000-4-5 Level 3 surges without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT5250H-B30-Q | ±2 % tolerance (29.4–30.6 V), lower rdiff (200 Ω), tighter tempco (−2.0 mV/K) | Preferred for precision analog references where 1 % absolute accuracy outweighs cost sensitivity | Select when system-level calibration budget permits tighter initial tolerance and lower dynamic impedance |
| MMSZ5250ET1G | 30 V nominal, ±5 %, SOD-123 package, 500 mW Ptot, not AEC-Q101 qualified | Suitable for industrial/commercial designs without automotive reliability requirements | Choose for cost-driven non-automotive applications where 330 mW lower power rating is acceptable |
Compared with BZT5250H-C30-QX, the BZT5250H-B30-Q offers higher precision but lacks intentional leakage optimization for noise reduction, while MMSZ5250ET1G trades AEC-Q101 compliance and 830 mW rating for lower unit cost in non-automotive contexts.
Availability
BZT5250H-C30-QX is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor signal conditioning, portable medical monitoring, and smart utility metering requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZT5250H-C30-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 logic, discrete, and MOSFET solutions, with leadership in automotive-qualified components.
The BZT5250H-Q series belongs to Nexperia's AEC-Q101-qualified Zener portfolio, engineered specifically for low-current voltage regulation in harsh-environment automotive and industrial control systems.
FAQ
What is the Zener voltage tolerance and test condition for BZT5250H-C30-QX?
The BZT5250H-C30-QX has a nominal Zener voltage of 30 V with ±5 % tolerance, measured at a test current of 50 µA. This low test current enables stable regulation in micropower applications such as battery-backed sensors and low-leakage reset circuits, where traditional 5 mA Zener tests would overload the source.
Is BZT5250H-C30-QX qualified for automotive use?
Yes-BZT5250H-C30-QX is fully qualified to AEC-Q101 standards for discrete semiconductors, including stress testing for temperature cycling, humidity, and mechanical shock. It is recommended for under-hood and cabin applications including body control modules, lighting drivers, and infotainment power supervision.
How does the SOD123F package affect thermal performance?
The SOD123F package delivers a junction-to-solder-point thermal resistance of 150 K/W when mounted on an FR4 PCB with a 1 cm² cathode pad. This enables reliable 830 mW power dissipation at ambient temperatures up to 25 °C and supports operation up to 150 °C junction temperature in thermally managed automotive layouts.
What distinguishes the 'C' series from the 'B' series in the BZT5250H-Q family?
The 'C' series (e.g., BZT5250H-C30-QX) features ±5 % tolerance and intentional minor leakage current rise to improve switching speed and reduce high-frequency noise-ideal for feedback loops and fast transient suppression. The 'B' series offers ±2 % tolerance and lower leakage, prioritizing precision over noise performance.
BZT5250H-C30-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):
- 30 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 22.8 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-123F
BZT5250H-C30-QX FAQ
1.How can I place an order for BZT5250H-C30-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C30-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-C30-QX reliable?
The price and inventory of BZT5250H-C30-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-C30-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-C30-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C30-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C30-QX?
BZT5250H-C30-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C30-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-C30-QX?
For technical support, including BZT5250H-C30-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C30-QX requirements.
6.How does Aetrix verify that BZT5250H-C30-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C30-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-C30-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-C30-QX?
All BZT5250H-C30-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C30-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-C30-QX part is unused and in its original packaging.
Return procedure for BZT5250H-C30-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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