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Nexperia USA Inc. BZT5250H-B3V6X
- Part No.:
- BZT5250H-B3V6X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-B3V6X.pdf
- Description:
- DIODE ZENER 3.6V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,422
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Product details
Overview
BZT5250H-B3V6X from Nexperia is a low-current Zener diode in SOD123F package, designed for precision voltage regulation at 3.6 V nominal with ±2 % tolerance, specified at 50 µA test current and featuring 95 Ω differential resistance at 5 mA. It delivers stable reference voltage in portable battery-powered systems, low-power sensor biasing, and microcontroller reset circuitry.
For engineers reviewing the BZT5250H-B3V6X datasheet, BZT5250H-B3V6X pinout, BZT5250H-B3V6X application, or BZT5250H-B3V6X equivalent, this page provides verified electrical parameters, thermal performance data, cathode/anode terminal mapping, and validated alternative parts for low-current Zener regulation use cases.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal 3.6 V regulation voltage at IZ = 50 µA, exhibiting a temperature coefficient of −3.5 mV/K and 160 pF junction capacitance at 0 V. Its low test current enables minimal quiescent power draw in always-on monitoring circuits.
The device uses silicon planar technology with intentional minor leakage optimization per AN90031, supporting fast transient response and reduced noise in analog reference paths. Thermal resistance from junction to solder point is 150 K/W on standard FR4 PCB, enabling reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.53 V to 3.67 V at IZ = 50 µA - tight ±2 % tolerance ensures predictable reference accuracy in low-bias designs |
| Differential Resistance (rdiff) | 95 Ω at IZ = 5 mA - low impedance maintains regulation stability under small load variations |
| Forward Voltage (VF) | 0.9 V at IF = 10 mA - enables use as clamping diode in bidirectional protection schemes |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - supports moderate continuous dissipation without heatsinking on standard PCB |
| Junction Temperature (Tj) | −55 °C to +150 °C - wide operating range suits industrial and automotive-adjacent environments |
| Reverse Current (IR) | 2.0 µA at VR = 2.0 V - ultra-low leakage preserves battery life in standby circuits |
| Thermal Resistance (Rth(j-sp)) | 150 K/W - quantifies thermal path efficiency from die to cathode solder joint on FR4 board |
Pinout & Package
SOD123F surface-mount plastic package: 2.6 mm × 1.6 mm × 1.1 mm body, flat lead profile optimized for automated placement and reflow soldering. 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; carries reverse breakdown current |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-biased path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current specification | 50 µA Zener test condition - reduces system standby current and extends battery runtime |
| Optimized leakage profile | Intentional minor rise per AN90031 - improves switching speed and lowers broadband noise in reference paths |
| Tight voltage tolerance | ±2 % (B-series) - eliminates need for post-production trimming in cost-sensitive consumer electronics |
| Small-form-factor SMD | SOD123F footprint - saves PCB area versus DO-35 or SOD-123, compatible with high-density layouts |
| Robust thermal rating | 150 °C max junction temperature - supports operation in enclosed enclosures without forced airflow |
Applications
| Portable Sensor Biasing | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Providing stable 3.6 V reference to analog front-end of battery-powered environmental sensors. IC Role / Device Role / Timing Role: Zener diode acts as shunt voltage reference, maintaining constant bias voltage despite battery discharge from 4.2 V to 3.0 V. Use Value: 2.0 µA leakage at 2.0 V and 95 Ω dynamic impedance ensure <10 mV drift over 10-year shelf life and <0.5 % line regulation error. |
Use Scenario: Generating clean power-on reset signal for ARM Cortex-M0+ MCU in wearable health monitor. IC Role / Device Role / Timing Role: Zener clamps reset line to 3.6 V during brown-out, triggering internal POR when VDD drops below threshold. Use Value: −3.5 mV/K temperature coefficient minimizes reset threshold drift across −20 °C to +70 °C operating range. |
| Low-Power ADC Reference | USB-C Port Protection Clamp |
Use Scenario: Supplying reference voltage to 12-bit SAR ADC in energy-harvesting IoT node powered by solar cell. IC Role / Device Role / Timing Role: Functions as precision shunt regulator feeding REF+ input, replacing higher-quiescent LDOs. Use Value: 160 pF junction capacitance avoids signal coupling into sensitive analog input; 0.9 V forward drop enables bidirectional clamping if needed. |
Use Scenario: Protecting USB-C CC line against ESD transients while preserving 3.6 V logic level integrity. IC Role / Device Role / Timing Role: Placed between CC pin and ground to clamp surges above 3.6 V without affecting normal 0.4–2.0 V signaling. Use Value: 40 W non-repetitive peak power rating (100 µs pulse) absorbs IEC 61000-4-2 Level 4 ESD events 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 |
|---|---|---|---|
| BZX584C3V6 | Same 3.6 V nominal, ±2 %, but SOD-323 package (1.7 × 1.3 mm); 100 Ω rdiff; 100 pF Cd | Higher board density possible; lower thermal mass limits power handling to 300 mW | Select when PCB space is critical and power < 300 mW; avoid in thermally constrained enclosures |
| MMSZ4685 | 3.6 V nominal, ±5 %, SOD-123 package; 100 Ω rdiff; 150 pF Cd; 500 mW Ptot | Looser tolerance increases reference uncertainty; higher power rating allows larger surge margin | Choose for cost-sensitive designs where ±5 % is acceptable and 500 mW dissipation suffices |
Compared with BZT5250H-B3V6X, BZX584C3V6 trades thermal robustness for miniaturization, while MMSZ4685 sacrifices voltage precision for broader availability and higher surge tolerance-making the BZT5250H-B3V6X optimal for battery-critical, low-drift reference applications.
Availability
BZT5250H-B3V6X is available at Aetrix Electronics and suitable for portable sensor biasing, microcontroller reset circuitry, low-power ADC reference, and USB-C port protection requiring stable component supply, consistent parametric performance, and long-term lifecycle continuity.
Supply support for BZT5250H-B3V6X 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 discrete and logic devices, with leadership in advanced packaging and automotive-qualified components.
The BZT5250H series belongs to Nexperia's low-current Zener portfolio, engineered specifically for battery-constrained and noise-sensitive applications where regulation stability at microampere bias currents is essential.
FAQ
What is the maximum reverse voltage before breakdown for BZT5250H-B3V6X?
The device exhibits sharp reverse breakdown at 3.53 V minimum and 3.67 V maximum when tested at 50 µA. Below 3.53 V, reverse current remains ≤2.0 µA at 2.0 V; no hard "maximum reverse voltage" exists prior to breakdown-it is defined by its VZ specification window and leakage curve.
Can BZT5250H-B3V6X be used in series for higher voltage regulation?
No-this Zener is not characterized or guaranteed for series operation. Its 95 Ω differential resistance and ±2 % tolerance are specified individually; stacking introduces cumulative tolerance error, mismatched temperature coefficients, and uncontrolled current sharing that degrade regulation accuracy and reliability.
Is BZT5250H-B3V6X suitable for automotive applications?
No-this part is not AEC-Q200 qualified. The datasheet explicitly states it is "non-automotive qualified" and unsuitable for safety-critical or life-support systems. Use only in consumer, industrial, or commercial equipment where automotive-grade reliability and testing are not required.
How does the "intentional minor rise of leakage current" affect circuit design?
Per AN90031, this controlled leakage enhances transient response and reduces high-frequency noise in regulation paths. Designers benefit from faster recovery after overvoltage events and lower RMS noise in analog references-but must verify that the added ~0.1–2.0 µA leakage aligns with total system standby budget.
BZT5250H-B3V6X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZT5250H
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.6 V
- Tolerance:
- ±2%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 7.5 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT5250H-B3V6X FAQ
1.How can I place an order for BZT5250H-B3V6X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-B3V6X 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-B3V6X reliable?
The price and inventory of BZT5250H-B3V6X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-B3V6X is usually 5 days.
3.What payment methods are accepted for BZT5250H-B3V6X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-B3V6X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-B3V6X?
BZT5250H-B3V6X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-B3V6X 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-B3V6X?
For technical support, including BZT5250H-B3V6X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-B3V6X requirements.
6.How does Aetrix verify that BZT5250H-B3V6X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-B3V6X 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-B3V6X meets industry standards.
7.What is the process for return or replacement of BZT5250H-B3V6X?
All BZT5250H-B3V6X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-B3V6X, 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-B3V6X part is unused and in its original packaging.
Return procedure for BZT5250H-B3V6X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-B3V6X Tags
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MM5Z5V1ST1G
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