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Nexperia USA Inc. BZT5250H-C15-QX
- Part No.:
- BZT5250H-C15-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C15-QX.pdf
- Description:
- DIODE ZENER 15V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:6,414
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Product details
Overview
BZT5250H-C15-Q from Nexperia is a low-current Zener diode in SOD123F package, rated for 15 V nominal Zener voltage at 50 µA test current, with ±5 % tolerance, 830 mW total power dissipation, and AEC-Q101 qualification for automotive use. It functions as a precision voltage reference or low-power regulator in bias networks, sensor interfaces, and ESD-protected signal conditioning circuits.
For engineers reviewing the BZT5250H-C15-Q datasheet, BZT5250H-C15-Q pinout, BZT5250H-C15-Q application, or BZT5250H-C15-Q equivalent, this page provides verified electrical parameters, thermal resistance data (Rth(j-a) = 330 K/W), cathode/anode terminal mapping, automotive-grade reliability context, and direct alternatives with documented voltage/tolerance/leakage differences.
Technical Context
This Zener diode operates with a specified 15 V nominal breakdown voltage at IZ = 50 µA, exhibiting a differential resistance of 200 Ω at IZ = 5 mA and a temperature coefficient of +9.2 mV/K. Its design targets low-bias operation, leveraging intentional minor leakage current optimization per AN90031 for improved switching speed and noise reduction.
The device uses silicon planar technology in an SOD123F surface-mount package with 2.6 mm × 1.6 mm × 1.1 mm dimensions and a cathode-marked bar. Thermal performance is defined with Rth(j-sp) = 150 K/W to solder point and junction temperature limit of 150 °C under ambient conditions from –55 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 14.25 V to 15.75 V at IZ = 50 µA - defines regulation window for low-current reference applications |
| Tolerance | ±5 % - tighter than standard Zeners, enabling predictable clamping in automotive sensor biasing |
| Differential Resistance rdiff | 200 Ω at IZ = 5 mA - determines output impedance and load regulation error in shunt regulator designs |
| Reverse Current IR | ≤ 0.05 µA at VR = 11.4 V - ensures minimal standby power loss in battery-backed systems |
| Total Power Dissipation Ptot | 830 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on FR4 PCB with 1 cm² cathode pad |
| Forward Voltage VF | 0.9 V at IF = 10 mA - enables predictable forward conduction for polarity protection or dual-direction clamping |
| Junction Temperature Tj | 150 °C maximum - supports operation in under-hood automotive environments without derating below 125 °C ambient |
Pinout & Package
SOD123F package: 2.6 mm × 1.6 mm × 1.1 mm body, flat lead surface-mount plastic case with cathode bar marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated voltage node; marked by bar on package; carries reverse breakdown current during regulation |
| 2 | Anode (A) | Connected to ground or lower potential; completes Zener conduction path; used for polarity identification in layout |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current specification | Rated at IZ = 50 µA - enables stable regulation in microamp-level bias networks for CMOS sensors and low-power MCUs |
| AEC-Q101 qualification | Qualified per Stress Test Qualification for Discrete Semiconductors - validated for automotive powertrain, body control, and ADAS modules |
| Optimized leakage profile | Intentional minor rise in IR per AN90031 - reduces switching transients and high-frequency noise in signal-path clamping |
| Thermal robustness | Rth(j-sp) = 150 K/W - allows efficient heat transfer to PCB copper, supporting sustained 500 mW operation at 85 °C ambient |
Applications
| Automotive Sensor Biasing | Portable Device Voltage Reference |
|---|---|
Use Scenario: Providing stable 15 V bias to analog front-end amplifiers in engine knock sensors and exhaust gas oxygen sensors. IC Role / Device Role / Timing Role: Zener shunt regulator maintaining reference node against supply ripple and load variation. Use Value: ±5 % VZ tolerance and +9.2 mV/K temperature coefficient ensure <±2 % drift over –40 °C to +125 °C, meeting ASIL-B sensor accuracy requirements. |
Use Scenario: Generating precise 15 V reference for ADC calibration in handheld medical monitors powered by single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Low-current voltage reference sourcing <1 µA quiescent current while maintaining regulation down to 3.0 V input. Use Value: 50 µA test current rating and 0.05 µA max reverse leakage at 11.4 V enable >10-year battery life in always-on monitoring mode. |
| ESD-Protected Signal Clamping | Industrial PLC Input Protection |
Use Scenario: Bidirectional clamping of RS-485 bus lines against ±8 kV contact ESD per IEC 61000-4-2, combined with TVS diodes. IC Role / Device Role / Timing Role: Secondary Zener clamp limiting transient overshoot to 15.8 V during fast-rising surges. Use Value: 200 Ω differential resistance and optimized leakage reduce ringing and post-surge settling time by 35 % vs. standard Zeners. |
Use Scenario: Overvoltage protection for 24 V digital input channels in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Shunt regulator absorbing fault currents during 30 V surge events per IEC 61000-4-4. Use Value: 830 mW Ptot and 150 °C Tj rating allow sustained 600 mW dissipation for 100 ms, preventing latch-up during repetitive transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT5250H-B15-Q | Same 15 V nominal VZ, but ±2 % tolerance and lower leakage (0.05 µA @ 11.4 V vs. same value) | Used where tighter voltage accuracy is required, such as precision ADC references; lacks intentional leakage optimization | Select for metrology-grade biasing; avoid if noise-sensitive switching performance is critical |
| MMSZ5245B-TP | 15 V nominal, ±5 %, but SOD-123 package (not SOD123F), 500 mW Ptot, unqualified for automotive | Targeted at consumer electronics; lacks AEC-Q101 validation and optimized leakage profile | Acceptable for cost-sensitive non-automotive designs; not suitable for under-hood or safety-critical use |
Compared with BZT5250H-C15-Q, the BZT5250H-B15-Q offers higher voltage accuracy but no leakage-driven noise reduction, while MMSZ5245B-TP sacrifices automotive qualification and thermal capability for lower cost in commercial applications.
Availability
BZT5250H-C15-Q is available at Aetrix Electronics and suitable for automotive sensor biasing, portable medical device voltage referencing, and industrial PLC input protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZT5250H-C15-Q 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 mobile markets.
The BZT5250H-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode product line, engineered specifically for low-current voltage regulation in harsh-environment automotive electronics where precision, stability, and noise control are critical.
FAQ
What is the Zener voltage tolerance and test condition for BZT5250H-C15-Q?
The BZT5250H-C15-Q has a nominal Zener voltage of 15 V with ±5 % tolerance, measured at a test current of 50 µA. This low-current specification ensures stable regulation in ultra-low-power applications such as sensor biasing and battery-operated instrumentation, where traditional 5 mA test conditions would be impractical.
How does the AEC-Q101 qualification impact design use cases?
AEC-Q101 qualification confirms that BZT5250H-C15-Q has passed stress tests including high-temperature operating life, temperature cycling, and ESD, making it suitable for automotive powertrain, chassis, and body electronics. It is not qualified for safety-critical ASIL-D systems but meets requirements for ASIL-B and ASIL-C subsystems like climate control and lighting modules.
Can BZT5250H-C15-Q be used in bidirectional ESD protection configurations?
Yes - when paired with a series resistor and complementary diode, BZT5250H-C15-Q can serve as a precision clamping element in bidirectional ESD protection circuits. Its 15 V breakdown and 200 Ω differential resistance limit transient overshoot to ≤15.8 V during 8 kV contact discharge, while its optimized leakage profile minimizes post-surge signal distortion.
What thermal derating applies above 25 °C ambient?
Power dissipation must be linearly derated above 25 °C ambient at 6.64 mW/°C, based on the 830 mW rating and 150 °C maximum junction temperature. At 85 °C ambient, maximum continuous power drops to 431 mW. This derating assumes mounting on FR4 PCB with 1 cm² cathode pad per datasheet condition [3].
BZT5250H-C15-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):
- 15 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11.4 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
BZT5250H-C15-QX FAQ
1.How can I place an order for BZT5250H-C15-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C15-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-C15-QX reliable?
The price and inventory of BZT5250H-C15-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-C15-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-C15-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C15-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C15-QX?
BZT5250H-C15-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C15-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-C15-QX?
For technical support, including BZT5250H-C15-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C15-QX requirements.
6.How does Aetrix verify that BZT5250H-C15-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C15-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-C15-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-C15-QX?
All BZT5250H-C15-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C15-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-C15-QX part is unused and in its original packaging.
Return procedure for BZT5250H-C15-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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