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Nexperia USA Inc. BZT5250H-B36X
- Part No.:
- BZT5250H-B36X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT5250H-B36X.pdf
- Description:
- DIODE ZENER 36V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:3,928
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Product details
Overview
BZT5250H-B36X from Nexperia is a low-current Zener diode in SOD123F package, rated for 36 V nominal Zener voltage at 50 µA test current, with ±2 % tolerance, 830 mW total power dissipation, and 350 Ω differential resistance at 5 mA. It serves as a precision voltage reference or regulator in low-bias portable electronics.
For engineers reviewing the BZT5250H-B36X datasheet, BZT5250H-B36X pinout, BZT5250H-B36X application, or BZT5250H-B36X equivalent, key selection criteria include low-test-current regulation stability, thermal resistance to solder point (150 K/W), cathode-anode polarity marking, and SOD123F footprint compatibility with high-density PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown mode with specified VZ = 35.3–36.7 V at IZ = 50 µA, exhibiting a positive temperature coefficient of +0.05 mV/K and reverse leakage ≤0.05 µA at VR = 27.3 V. Its low 50 µA test current enables stable regulation in micro-power circuits where bias current must be minimized.
The device uses silicon planar technology with intentional minor leakage optimization per AN90031 for fast switching transients and reduced noise-critical in battery-powered sensor nodes and analog front-ends requiring clean reference stability without active buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 35.3 V to 36.7 V at IZ = 50 µA - defines precise regulation threshold under ultra-low bias conditions |
| Tolerance | ±2 % - ensures tight voltage accuracy for reference-grade applications without trimming |
| Differential Resistance (rdiff) | 350 Ω at IZ = 5 mA - quantifies dynamic impedance affecting load regulation error |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C with 1 cm² cathode pad - sets maximum steady-state thermal envelope |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - confirms low conduction loss when used bidirectionally or in clamp configurations |
| Junction Temperature (Tj) | −55 °C to +150 °C - supports operation across industrial ambient ranges without derating below −40 °C |
| Thermal Resistance (Rth(j-sp)) | 150 K/W - determines temperature rise above solder point under defined PCB mounting |
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 on FR4 PCBs with standard footprint per Figure 10.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Marked side with bar; connects to regulated output node or reference ground return path |
| 2 | Anode (A) | Connects to input supply or higher-potential rail; reverse-biased during Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - enables use in nanoampere-bias circuits such as RTC backup supplies and low-power comparators |
| Optimized leakage profile | Intentional minor rise per AN90031 - reduces switching noise and improves transient response in signal conditioning paths |
| High-precision tolerance | ±2 % VZ - eliminates need for external calibration in voltage monitoring and overvoltage protection thresholds |
| Small-form-factor SMD | SOD123F package - saves board space in wearables, IoT sensors, and compact power management modules |
| Robust thermal performance | Rth(j-sp) = 150 K/W - allows reliable operation at elevated ambient temperatures with minimal heatsinking |
Applications
| Portable Battery Monitoring | Low-Power Sensor Reference |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage in Bluetooth earbuds during charging and discharge cycles. IC Role / Device Role / Timing Role: Zener reference for ADC input scaling and overvoltage detection circuitry. Use Value: Stable 36 V reference enables accurate full-scale measurement up to 4.2 V cell voltage with <1 % error margin at 50 µA bias. |
Use Scenario: Providing excitation voltage for MEMS pressure sensor in medical patch monitors. IC Role / Device Role / Timing Role: Low-drift voltage reference for ratiometric sensor bridge biasing. Use Value: ±2 % VZ tolerance and +0.05 mV/K TC ensure <0.5 % full-scale drift over 0–50 °C operating range. |
| USB-C PD Protection Clamp | Industrial PLC Input Conditioning |
Use Scenario: Clamping transient surges on USB-C CC lines during hot-plug events. IC Role / Device Role / Timing Role: Fast-response Zener clamp protecting Type-C controller GPIO pins. Use Value: Optimized leakage profile minimizes false triggering while maintaining <10 ns response to 1 kV/µs transients. |
Use Scenario: Level-shifting and overvoltage protection for 24 V digital inputs in factory automation controllers. IC Role / Device Role / Timing Role: Precision shunt regulator in optocoupler input stage. Use Value: 350 Ω rdiff limits current variation to <2 % across 18–30 V input range, ensuring consistent LED drive. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C36 | Same 36 V nominal, but ±5 % tolerance and 300 mW Ptot; SOT23 package | Higher power dissipation margin not required; less stringent accuracy needed | Select when cost sensitivity outweighs precision and thermal performance requirements |
| MMSZ5245B | 36 V nominal, ±5 %, 500 mW Ptot, 600 Ω rdiff; SOD123 package (not F variant) | Lower thermal resistance not critical; legacy design reuse preferred | Choose for backward compatibility with existing SOD123 footprints where 150 K/W Rth(j-sp) is unnecessary |
Compared with BZT5250H-B36X, BZX84-C36 trades accuracy and thermal capability for lower cost and smaller footprint, while MMSZ5245B offers moderate performance in a non-optimized package-making the B36X optimal for new designs demanding low-bias precision and thermal robustness.
Availability
BZT5250H-B36X is available at Aetrix Electronics and suitable for portable battery monitoring, low-power sensor reference, USB-C PD protection clamp, and industrial PLC input conditioning requiring stable component supply across production volumes and long-lifecycle programs.
Supply support for BZT5250H-B36X 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, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.
The BZT5250H series belongs to Nexperia's precision low-current Zener portfolio, engineered specifically for ultra-low-bias voltage reference and regulation in energy-constrained systems where traditional Zeners fail to stabilize.
FAQ
What is the maximum reverse voltage before breakdown for BZT5250H-B36X?
The device exhibits sharp reverse breakdown at 35.3 V minimum and 36.7 V maximum when tested at 50 µA. Below 35.3 V, reverse leakage remains ≤0.05 µA at 27.3 V; no guaranteed clamping occurs below the specified VZ range.
Can BZT5250H-B36X be used in forward conduction mode?
Yes-it conducts with ≤0.9 V forward voltage at 10 mA, making it suitable for dual-purpose roles such as ESD protection diode or low-drop rectifier in auxiliary bias paths, though its primary design intent is reverse-biased Zener regulation.
How does the SOD123F package differ from standard SOD123 in thermal performance?
SOD123F features an enhanced cathode pad design that reduces Rth(j-sp) to 150 K/W versus ~200 K/W for standard SOD123, enabling 25 % higher power handling at the same board temperature-critical for sustained 830 mW operation in compact layouts.
Is BZT5250H-B36X suitable for automotive applications?
No-this part is not AEC-Q200 qualified. Nexperia explicitly states in Section 14 that non-automotive qualified products like BZT5250H-B36X are unsuitable for safety-critical or life-support systems, and automotive use requires explicit qualification documentation not present here.
BZT5250H-B36X 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):
- 36 V
- Tolerance:
- ±2%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 27.3 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-B36X FAQ
1.How can I place an order for BZT5250H-B36X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT5250H-B36X 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-B36X reliable?
The price and inventory of BZT5250H-B36X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT5250H-B36X is usually 5 days.
3.What payment methods are accepted for BZT5250H-B36X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT5250H-B36X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT5250H-B36X?
BZT5250H-B36X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT5250H-B36X 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-B36X?
For technical support, including BZT5250H-B36X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT5250H-B36X requirements.
6.How does Aetrix verify that BZT5250H-B36X is sourced from the original manufacturer or authorized distributors?
All BZT5250H-B36X 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-B36X meets industry standards.
7.What is the process for return or replacement of BZT5250H-B36X?
All BZT5250H-B36X units undergo pre-shipment inspection (PSI). If there is an issue with BZT5250H-B36X, 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-B36X part is unused and in its original packaging.
Return procedure for BZT5250H-B36X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT5250H-B36X Tags
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MM5Z5V1ST1G
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