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Nexperia USA Inc. BZT5250H-C7V5-QX
- Part No.:
- BZT5250H-C7V5-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-C7V5-QX.pdf
- Description:
- DIODE ZENER 7.5V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:5,857
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Product details
Overview
BZT5250H-C7V5-Q from Nexperia is a low-current Zener diode in SOD123F package, providing precise 7.5 V regulation at 50 µA test current with ±5 % tolerance, 80 Ω differential resistance at 5 mA, and AEC-Q101 qualification for automotive voltage reference and biasing applications.
For engineers reviewing the BZT5250H-C7V5-Q datasheet, BZT5250H-C7V5-Q pinout, BZT5250H-C7V5-Q application, or BZT5250H-C7V5-Q equivalent, this page delivers verified Zener voltage, thermal resistance, leakage behavior, and automotive-grade reliability data required for low-power rail stabilization and sensor bias design.
Technical Context
This Zener operates in reverse breakdown mode with nominal VZ = 7.5 V (min 7.13 V, max 7.88 V at IZ = 50 µA), exhibiting a positive temperature coefficient of +2.5 mV/K and diode capacitance of 150 pF at 0 V. Its low 50 µA test current enables stable regulation in ultra-low-quiescent circuits.
The device features intentional minor leakage optimization per AN90031 for fast switching and noise reduction, and achieves Rth(j-a) = 330 K/W in free air and Rth(j-sp) = 70 K/W to cathode solder point - critical for thermal management in compact automotive PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.5 V nominal (7.13–7.88 V at IZ = 50 µA); defines stable reference point for low-bias voltage clamping |
| Tolerance | ±5 % (C-series); enables cost-optimized selection where tight regulation is not required |
| Differential Resistance (rdiff) | 80 Ω max at IZ = 5 mA; determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | 0.1 µA max at VR = 5.7 V; ensures minimal standby power loss in battery-critical systems |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C on FR4 PCB with 1 cm² cathode pad; sets maximum continuous operating envelope |
| Junction Temperature (Tj) | 150 °C max; supports under-hood automotive environments without derating below ambient |
| AEC-Q101 Qualified | Yes; validated for automotive discrete semiconductor stress testing including HTGB, HTRB, and ESD |
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 (K) | Cathode | Connected to regulated output node; marking bar identifies this terminal; primary heat path to PCB via cathode pad |
| 2 (A) | Anode | Connected to ground or lower-potential rail; completes reverse-bias path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Low-test-current regulation | Specified at 50 µA - enables use in microamp-level bias networks for sensors and low-IQ LDOs |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - reduces switching noise and improves transient response in feedback paths |
| Automotive qualification | AEC-Q101 compliant - qualified for engine control units, body electronics, and ADAS subsystems |
| Thermal performance | Rth(j-sp) = 70 K/W to cathode solder point - allows direct thermal coupling to copper pour for sustained 7.5 V reference stability |
Applications
| Automotive Sensor Biasing | Portable Gas Detector Reference |
|---|---|
|
Use Scenario: Providing stable 7.5 V bias to MEMS pressure sensor bridge in engine manifold module. IC Role / Device Role / Timing Role: Zener voltage reference establishing excitation potential for Wheatstone bridge. Use Value: ±5 % tolerance and +2.5 mV/K TC ensure <±15 mV drift over –40 °C to +125 °C, meeting ASIL-B sensor accuracy requirements. |
Use Scenario: Supplying regulated reference for electrochemical CO sensor amplifier in handheld safety monitor. IC Role / Device Role / Timing Role: Low-current Zener shunt regulator maintaining fixed reference despite 3.0–4.2 V Li-ion battery variation. Use Value: 0.1 µA max leakage at 5.7 V minimizes battery drain, enabling >2-year shelf life with 100 µA average system current. |
| Industrial PLC Input Protection | Medical Wearable Voltage Clamp |
|
Use Scenario: Clamping 24 V DC input transients on digital I/O module using series resistor + Zener to ground. IC Role / Device Role / Timing Role: Transient voltage suppressor limiting input to safe logic levels during EFT bursts. Use Value: 830 mW Ptot and 40 W non-repetitive peak power (100 µs) absorb IEC 61000-4-4 level 4 surges without failure. |
Use Scenario: Stabilizing ADC reference voltage in ECG patch with coin-cell power supply. IC Role / Device Role / Timing Role: Precision shunt reference generating clean 7.5 V for 16-bit SAR ADC driver stage. Use Value: 150 pF capacitance and optimized leakage reduce high-frequency noise coupling into analog front-end, preserving SNR >85 dB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C7V5 | Same 7.5 V, ±5 %, but SOT23 package (higher Rth(j-a) = 450 K/W); no AEC-Q101 qualification | Limited to commercial-temperature industrial controls; unsuitable for under-hood automotive use | Select when board space permits SOT23 and automotive qualification is unnecessary |
| MMSZ5236B | 7.5 V, ±5 %, SOD123 package (not SOD123F); Ptot = 500 mW; no intentional leakage optimization | Lower power handling and unoptimized noise performance limit use in precision analog feedback | Select only for cost-sensitive consumer applications where thermal margin and noise are secondary |
Compared with BZX84-C7V5 and MMSZ5236B, BZT5250H-C7V5-Q uniquely combines AEC-Q101 compliance, SOD123F's superior thermal pad coupling, and AN90031-optimized leakage-making it the sole choice for automotive-grade 7.5 V reference where reliability, noise, and thermal performance are co-constrained.
Availability
BZT5250H-C7V5-Q is available at Aetrix Electronics and suitable for automotive sensor modules, portable gas detection systems, industrial PLC input protection, and medical wearable voltage clamping requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZT5250H-C7V5-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 leading Dutch semiconductor manufacturer specializing in high-performance, high-reliability discrete and logic devices, with core expertise in automotive-qualified components.
The BZT5250H-Q series belongs to Nexperia's AEC-Q101-qualified Zener portfolio, engineered specifically for low-current, low-noise voltage reference and regulation in harsh-environment automotive and industrial electronics.
FAQ
What is the Zener test current for BZT5250H-C7V5-Q, and why is it significant?
The Zener voltage is specified at IZ = 50 µA, which is significantly lower than standard Zeners (typically 5 mA). This enables reliable regulation in ultra-low-power circuits such as battery-powered sensor bias networks and energy-harvesting systems where quiescent current must remain sub-100 µA.
How does the "intentional minor rise of leakage current" benefit circuit performance?
Per application note AN90031, this controlled leakage improves dynamic response and reduces high-frequency noise in feedback loops - particularly valuable in analog front-ends and closed-loop voltage references where conventional Zeners exhibit ringing or instability during transient events.
Can BZT5250H-C7V5-Q replace BZT5250H-B7V5-Q in an existing design?
Yes, but with trade-offs: the C-series has wider ±5 % tolerance versus B-series ±2 %, and slightly higher leakage (0.1 µA vs. 0.05 µA at VR = 5.7 V). Use C7V5-Q where cost and noise performance outweigh tight voltage tolerance requirements.
What is the maximum allowable forward current for this Zener diode?
The absolute maximum forward current is 200 mA per Table 5, but forward conduction is not its intended operating mode. In normal Zener regulation, forward voltage remains ≤0.9 V at 10 mA - sufficient only for brief surge clamping, not continuous forward bias.
BZT5250H-C7V5-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):
- 7.5 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 5.7 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-C7V5-QX FAQ
1.How can I place an order for BZT5250H-C7V5-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-C7V5-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-C7V5-QX reliable?
The price and inventory of BZT5250H-C7V5-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-C7V5-QX is usually 5 days.
3.What payment methods are accepted for BZT5250H-C7V5-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-C7V5-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-C7V5-QX?
BZT5250H-C7V5-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-C7V5-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-C7V5-QX?
For technical support, including BZT5250H-C7V5-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-C7V5-QX requirements.
6.How does Aetrix verify that BZT5250H-C7V5-QX is sourced from the original manufacturer or authorized distributors?
All BZT5250H-C7V5-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-C7V5-QX meets industry standards.
7.What is the process for return or replacement of BZT5250H-C7V5-QX?
All BZT5250H-C7V5-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-C7V5-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-C7V5-QX part is unused and in its original packaging.
Return procedure for BZT5250H-C7V5-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-C7V5-QX Tags
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