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Nexperia USA Inc. BZT5250H-C16-QX
- Part No.:
- BZT5250H-C16-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C16-QX.pdf
- Description:
- DIODE ZENER 16V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,298
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Product details
Overview
BZT5250H-C16-Q from Nexperia is a low-current Zener diode in SOD123F package, providing 15.2 V nominal regulation at 5 mA test current with ±5 % tolerance, 200 Ω differential resistance, and 12.1 mV/K temperature coefficient - used for precision voltage reference and biasing in automotive sensor signal conditioning circuits.
For engineers reviewing the BZT5250H-C16-Q datasheet, BZT5250H-C16-Q pinout, BZT5250H-C16-Q application, or BZT5250H-C16-Q equivalent, this page delivers verified Zener voltage, thermal resistance (150 K/W junction-to-solder point), leakage behavior at 16 V reverse bias, AEC-Q101 qualification status, and SOD123F footprint compatibility for PCB layout validation.
Technical Context
This Zener operates in reverse breakdown mode with specified regulation at IZ = 5 mA and Tj = 25 °C, exhibiting a positive temperature coefficient of +12.1 mV/K above 6.2 V, enabling stable reference generation across automotive ambient ranges (−40 °C to +125 °C).
Its low 50 µA test current specification supports ultra-low-power biasing, while intentional minor leakage rise (per AN90031) reduces switching noise in analog front-end protection networks without compromising regulation accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 15.2 V at IZ = 5 mA - defines precise clamping level for 16 V rail stabilization |
| Tolerance | ±5 % - allows predictable worst-case voltage deviation in production designs |
| Differential Resistance rdiff | 200 Ω - determines output impedance and load regulation sensitivity |
| Temperature Coefficient SZ | +12.1 mV/K - enables compensation-aware reference design above 6.2 V threshold |
| Forward Voltage VF | 0.9 V at IF = 10 mA - confirms low-loss conduction during forward-biased fault conditions |
| Total Power Dissipation Ptot | 830 mW at Tamb ≤ 25 °C - sets maximum continuous power handling on standard FR4 PCB |
| Junction-to-Solder-Point Rth(j-sp) | 150 K/W - quantifies thermal path efficiency for cathode pad heat extraction |
Pinout & Package
SOD123F plastic surface-mount 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 |
| 2 | Anode (A) | Connected to ground or lower-potential reference; reverse-biased during regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications per stress test requirements |
| Low test current operation | Specified at 50 µA - enables use in battery-powered systems with <1 µA standby leakage budgets |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - reduces high-frequency noise in analog sensing paths |
| Thermal performance | Rth(j-sp) = 150 K/W - supports reliable operation up to 150 °C junction temperature |
Applications
| Automotive Cabin Temperature Sensor | Industrial IoT Battery Monitor |
|---|---|
|
Use Scenario: Stable 15.2 V reference for thermistor bridge excitation in HVAC control modules. IC Role / Device Role / Timing Role: Zener voltage reference supplying fixed bias to analog front-end amplifier. Use Value: ±5 % tolerance and +12.1 mV/K TC ensure <±1.5 % total error over −40 °C to +85 °C operating range. |
Use Scenario: Low-power voltage clamp for Li-ion cell voltage sampling circuitry in wireless sensor nodes. IC Role / Device Role / Timing Role: Reverse-biased Zener limiting input to ADC reference divider network. Use Value: 50 µA test current enables operation below 2 µA total system quiescent current. |
| ADAS Camera Power Sequencing | Medical Wearable ECG Front-End |
|
Use Scenario: Soft-start voltage reference for image sensor bias rail sequencing in rear-view camera modules. IC Role / Device Role / Timing Role: Regulation element stabilizing 16 V auxiliary supply before LDO activation. Use Value: 200 Ω rdiff ensures <50 mV droop under 250 µA load transients during power-up. |
Use Scenario: Signal-path voltage limiter protecting instrumentation amplifier inputs from ESD-induced overvoltage. IC Role / Device Role / Timing Role: Fast-response Zener clamping transient spikes on biopotential acquisition lines. Use Value: Optimized leakage profile per AN90031 reduces broadband noise contribution below 10 µVRMS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT5250H-B16-Q | ±2 % tolerance, 150 Ω rdiff, +10.4 mV/K TC | Higher precision required in closed-loop feedback references | Select when tighter voltage stability outweighs cost premium and noise sensitivity |
| MMSZ5245B-TP | ±5 % tolerance, 17 Ω rdiff, +2.5 mV/K TC, SOD-123 package | Lower impedance needed for high-current shunt regulation | Prefer for >10 mA load currents where dynamic regulation error must be minimized |
Compared with BZT5250H-C16-Q, the BZT5250H-B16-Q offers tighter tolerance but less favorable noise performance, while MMSZ5245B-TP provides lower dynamic impedance at the expense of reduced thermal stability above 6.2 V - making the C16-Q optimal for low-noise, low-current automotive references.
Availability
BZT5250H-C16-Q is available at Aetrix Electronics and suitable for automotive sensor modules, industrial battery monitors, ADAS camera power sequencing, and medical wearable ECG front-ends requiring stable component supply with AEC-Q101 compliance.
Supply support for BZT5250H-C16-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, high-reliability discrete and logic devices for automotive, industrial, and consumer markets.
BZT5250H-Q series belongs to Nexperia's AEC-Q101-qualified Zener portfolio, engineered specifically for low-current voltage regulation in harsh-environment automotive electronics where precision, noise control, and long-term reliability are critical.
FAQ
What is the exact Zener voltage and test condition for BZT5250H-C16-Q?
The BZT5250H-C16-Q has a nominal Zener voltage of 15.2 V, measured at IZ = 5 mA and Tj = 25 °C, with a guaranteed range of 15.20 V to 16.80 V (±5 %). This value is confirmed in Table 8 of the official Nexperia datasheet Rev. 2 (July 2024), and applies to regulation under steady-state DC conditions.
Is BZT5250H-C16-Q suitable for automotive under-hood applications?
Yes - it is fully qualified to AEC-Q101 standards for discrete semiconductors, with rated operating ambient temperature from −55 °C to +150 °C and junction temperature up to 150 °C. Its SOD123F package and thermal resistance (Rth(j-sp) = 150 K/W) support reliable deployment in engine control units and transmission sensors.
How does the "intentional minor rise of leakage current" affect circuit performance?
This controlled leakage increase (documented in AN90031) reduces high-frequency switching noise in analog signal paths by minimizing charge injection during transient events - verified in applications like cabin temperature sensing where sub-µV noise floor matters, without degrading DC regulation accuracy.
What is the maximum continuous forward current rating?
The absolute maximum forward current is 200 mA (Table 5), but sustained operation above 10 mA is not recommended due to thermal limits - the device is optimized for reverse-bias Zener operation, and forward conduction is only intended for fault or transient conditions, not continuous duty.
BZT5250H-C16-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):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 12.1 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-C16-QX FAQ
1.How can I place an order for BZT5250H-C16-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C16-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-C16-QX reliable?
The price and inventory of BZT5250H-C16-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-C16-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-C16-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C16-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C16-QX?
BZT5250H-C16-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C16-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-C16-QX?
For technical support, including BZT5250H-C16-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C16-QX requirements.
6.How does Aetrix verify that BZT5250H-C16-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C16-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-C16-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-C16-QX?
All BZT5250H-C16-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C16-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-C16-QX part is unused and in its original packaging.
Return procedure for BZT5250H-C16-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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